/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-black: #000000;
    --secondary-black: #1a1a1a;
    --dark-gray: #2d2d2d;
    --medium-gray: #666666;
    --light-gray: #f5f5f5;
    --pure-white: #ffffff;
    --accent-blue: #0066cc;
    --accent-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --tech-gradient: linear-gradient(45deg, #1e3c72 0%, #2a5298 100%);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --shadow-subtle: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.15);
    --shadow-strong: 0 20px 50px rgba(0, 0, 0, 0.25);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--primary-black);
    background: var(--pure-white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-logo .logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-black);
}

.footer .logo-text {
    color: var(--pure-white);
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--primary-black);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-blue);
}

.nav-link:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: var(--transition);
}

.nav-link:hover:after,
.nav-link.active:after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--primary-black);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translateX(-50%) translateY(-50%);
    z-index: -2;
    object-fit: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.7) 0%,
        rgba(26, 26, 26, 0.6) 50%,
        rgba(0, 0, 0, 0.8) 100%
    );
    z-index: -1;
}

.video-fallback {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--dark-gray) 0%, var(--secondary-black) 100%);
    display: block;
    opacity: 1;
    z-index: -2;
}

.geometric-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(90deg, transparent 50%, rgba(0, 102, 204, 0.05) 50%),
        linear-gradient(0deg, transparent 50%, rgba(0, 102, 204, 0.03) 50%);
    background-size: 60px 60px;
    animation: geometricMove 20s linear infinite;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.floating-element {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-blue);
    border-radius: 50%;
    opacity: 0.4;
    animation: float 15s infinite linear;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: -5s;
}

.floating-element:nth-child(3) {
    top: 80%;
    left: 20%;
    animation-delay: -10s;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero-content {
    z-index: 2;
    color: var(--pure-white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--pure-white);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-badge i {
    color: var(--accent-blue);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--pure-white);
}

.gradient-text {
    background: linear-gradient(135deg, #4285f4 0%, #1e88e5 50%, #039be5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-description strong {
    color: var(--pure-white);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-black);
    color: var(--pure-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-strong);
}

.btn-secondary {
    background: var(--pure-white);
    color: var(--primary-black);
    border: 2px solid var(--primary-black);
}

.btn-secondary:hover {
    background: var(--primary-black);
    color: var(--pure-white);
    transform: translateY(-2px);
}

/* Hero Visual */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.ai-visualization {
    width: 400px;
    height: 400px;
    position: relative;
    background: radial-gradient(circle at center, rgba(0, 102, 204, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.neural-network {
    position: relative;
    width: 200px;
    height: 200px;
}

.node {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--primary-black);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.node:nth-child(1) {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.node:nth-child(2) {
    top: 20%;
    right: 20%;
    animation-delay: 0.5s;
}

.node:nth-child(3) {
    bottom: 40%;
    left: 50%;
    animation-delay: 1s;
}

.node:nth-child(4) {
    bottom: 20%;
    left: 50%;
    animation-delay: 1.5s;
}

.connection {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), transparent);
    animation: dataFlow 3s infinite;
}

.connection:nth-child(5) {
    top: 25%;
    left: 25%;
    width: 50%;
    transform: rotate(15deg);
}

.connection:nth-child(6) {
    top: 45%;
    left: 20%;
    width: 60%;
    transform: rotate(-30deg);
}

.connection:nth-child(7) {
    bottom: 35%;
    left: 45%;
    width: 40%;
    transform: rotate(90deg);
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    background: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--pure-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--pure-white);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--medium-gray);
    line-height: 1.7;
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--pure-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.service-card:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--tech-gradient);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.service-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-black);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--pure-white);
}

.service-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-black);
}

.service-card p {
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.service-features {
    list-style: none;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.service-features i {
    color: var(--accent-blue);
    font-size: 0.8rem;
}

.cta-section {
    text-align: center;
    margin-top: 3rem;
}

/* Stats Section */
.stats {
    background: var(--primary-black);
    color: var(--pure-white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--secondary-black);
    color: var(--pure-white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
}

.footer-logo .logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    border-radius: 8px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--pure-white);
}

.contact-info p {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-info a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.contact-info a:hover {
    color: var(--pure-white);
}

.site-description {
    display: block;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 0.25rem;
    margin-left: 1.5rem;
    font-style: italic;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.company-info {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.copyright {
    font-size: 0.95rem;
    margin: 0;
}

.business-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 0.5rem 1rem;
    font-size: 0.85rem;
    opacity: 0.8;
    line-height: 1.5;
}

.business-info span {
    white-space: nowrap;
}

.business-info .divider {
    color: rgba(255, 255, 255, 0.4);
    font-weight: 300;
}

/* Student Community Section */
.student-community {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.community-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.community-feature-card {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.community-feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.community-feature-card .feature-icon {
    width: 60px;
    height: 60px;
    background: var(--tech-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--pure-white);
    font-size: 1.5rem;
}

.community-feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.community-feature-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

.community-access-notice {
    background: rgba(30, 60, 114, 0.05);
    border: 1px solid rgba(30, 60, 114, 0.1);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 3rem 0;
}

.access-notice-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.access-notice-content > i {
    font-size: 2rem;
    color: var(--accent-blue);
    flex-shrink: 0;
}

.notice-text h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.notice-text p {
    color: var(--medium-gray);
    margin: 0;
}

.community-cta {
    text-align: center;
    margin-top: 3rem;
}

.community-cta .btn {
    font-size: 1.1rem;
    padding: 1rem 2rem;
    margin-bottom: 1rem;
}

.cta-subtext {
    font-size: 0.9rem;
    color: var(--medium-gray);
    margin: 0;
}

/* Seminar Inquiry Notice */
.seminar-inquiry-notice {
    background: rgba(0, 102, 204, 0.03);
    border: 1px solid rgba(0, 102, 204, 0.1);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-top: 2rem;
}

.inquiry-notice-content {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.inquiry-notice-content > i {
    font-size: 1.8rem;
    color: var(--accent-blue);
    flex-shrink: 0;
}

.inquiry-text {
    flex: 1;
}

.inquiry-text h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.inquiry-text p {
    color: var(--medium-gray);
    margin: 0;
    line-height: 1.5;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
}

.btn-outline:hover {
    background: var(--accent-blue);
    color: var(--pure-white);
    transform: translateY(-1px);
}

/* Calendar Styles */
.calendar-container {
    max-width: none;
    margin: 0;
}

.calendar-loading, .calendar-error, .no-events {
    text-align: center;
    color: var(--medium-gray);
    background: var(--pure-white);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    box-shadow: var(--shadow-subtle);
}

.calendar-loading i, .calendar-error i, .no-events i {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-blue);
}

.calendar-error i {
    color: #e74c3c;
}

.retry-btn {
    background: var(--accent-blue);
    color: var(--pure-white);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    margin-top: 1rem;
    transition: var(--transition);
}

.retry-btn:hover {
    background: #0052a3;
}

/* Calendar View Toggle */
.calendar-view-toggle {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.view-toggle-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--pure-white);
    color: var(--medium-gray);
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.view-toggle-btn:hover {
    color: var(--primary-black);
    border-color: rgba(0, 0, 0, 0.2);
}

.view-toggle-btn.active {
    background: var(--primary-black);
    color: var(--pure-white);
    border-color: var(--primary-black);
}

.view-toggle-btn i {
    font-size: 1rem;
}

/* Calendar Views */
#calendar-views {
    margin-top: 2rem;
}

.calendar-view {
    display: none;
}

.calendar-view.active {
    display: block;
}

/* Weekly List View Styles */
.weekly-view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--pure-white);
    border-radius: var(--border-radius);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 1rem;
}

.week-nav-btn {
    background: none;
    border: none;
    color: var(--medium-gray);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.week-nav-btn:hover {
    background: var(--light-gray);
    color: var(--primary-black);
}

#current-week-range {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
    text-align: center;
}

.weekly-events-container {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
}

.weekly-list-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.weekly-list-date-section {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
    transition: var(--transition);
}

.weekly-list-date-section:hover {
    box-shadow: var(--shadow-medium);
}

.weekly-list-date-header {
    background: linear-gradient(135deg, var(--light-gray) 0%, rgba(0, 102, 204, 0.05) 100%);
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.weekly-list-date-header.today {
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1) 0%, rgba(0, 102, 204, 0.05) 100%);
    border-left: 4px solid var(--accent-blue);
}

.weekly-date-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.weekly-day-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-black);
}

.weekly-date-number {
    font-size: 0.9rem;
    color: var(--medium-gray);
    font-weight: 500;
}

.weekly-list-date-header.today .weekly-day-name {
    color: var(--accent-blue);
}

.weekly-day-badge {
    background: var(--primary-black);
    color: var(--pure-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    min-width: 40px;
    text-align: center;
}

.weekly-list-date-header.today .weekly-day-badge {
    background: var(--accent-blue);
}

.weekly-list-events {
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.weekly-list-event-card {
    background: var(--pure-white);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    padding: 1.5rem;
    position: relative;
    transition: var(--transition);
    cursor: pointer;
}

.weekly-list-event-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--accent-blue);
}

.weekly-list-event-card.full {
    opacity: 0.75;
    background: rgba(245, 245, 245, 0.5);
}

.event-card-header {
    margin-bottom: 1rem;
}

.event-time-status-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.event-time-badge {
    background: var(--tech-gradient);
    color: var(--pure-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.event-status-badge {
    padding: 0.4rem 1rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.event-status-badge.available {
    background: #e8f5e8;
    color: #2d5a2d;
}

.event-status-badge.full {
    background: #fdf2f2;
    color: #c53030;
}

.event-card-content {
    margin-bottom: 1rem;
}

.event-card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.event-card-details {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.event-detail-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.event-detail-item i {
    color: var(--accent-blue);
    width: 16px;
}

.event-card-description {
    color: var(--medium-gray);
    line-height: 1.6;
    font-size: 0.95rem;
    margin: 0;
    white-space: pre-wrap;
}

.event-type-indicator {
    position: absolute;
    top: 0;
    right: 0;
    color: var(--pure-white);
    padding: 0.5rem 1rem;
    border-bottom-left-radius: 12px;
    border-top-right-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.weekly-no-events-today {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 2rem;
    color: var(--medium-gray);
    font-style: italic;
    background: rgba(0, 102, 204, 0.02);
    border-radius: 8px;
    border: 1px dashed rgba(0, 102, 204, 0.2);
}

.weekly-no-events-today i {
    font-size: 1.2rem;
    color: var(--accent-blue);
}

/* Monthly Calendar View */
.monthly-calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--pure-white);
    border-radius: var(--border-radius);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 1rem;
}

.month-nav-btn {
    background: none;
    border: none;
    color: var(--medium-gray);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.month-nav-btn:hover {
    background: var(--light-gray);
    color: var(--primary-black);
}

#current-month-year {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
}

.monthly-calendar {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
    width: 100%;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    width: 100%;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.calendar-header-cell {
    background: var(--light-gray);
    padding: 1rem 0.5rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--medium-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-right: 1px solid rgba(0, 0, 0, 0.05);
    border-bottom: 2px solid rgba(0, 0, 0, 0.1);
}

.calendar-header-cell:last-child {
    border-right: none;
}

.calendar-cell {
    min-height: 100px;
    height: 100px;
    border-right: 1px solid rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 0.5rem;
    position: relative;
    background: var(--pure-white);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.calendar-cell:nth-child(7n) {
    border-right: none;
}

.calendar-cell:hover {
    background: var(--light-gray);
}

.calendar-cell.other-month {
    background: #fafafa;
    color: var(--medium-gray);
}

.calendar-cell.today {
    background: rgba(0, 102, 204, 0.05);
    border-color: var(--accent-blue);
}

.calendar-date {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--primary-black);
    margin-bottom: 0.25rem;
}

.calendar-cell.other-month .calendar-date {
    color: var(--medium-gray);
}

.calendar-cell.today .calendar-date {
    color: var(--accent-blue);
}

.calendar-events {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    overflow: hidden;
    margin-top: auto;
}

.calendar-event {
    background: var(--tech-gradient);
    color: var(--pure-white);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-weight: 500;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.2;
}

.calendar-event:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-subtle);
}

.calendar-event.full {
    background: linear-gradient(135deg, #666 0%, #999 100%);
}

.calendar-event.available {
    background: var(--tech-gradient);
}

.calendar-more-events {
    font-size: 0.65rem;
    color: var(--accent-blue);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    margin-top: 2px;
}

.calendar-more-events:hover {
    color: var(--primary-black);
}

.calendar-date-group {
    margin-bottom: 2rem;
}

.calendar-date-header {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--light-gray);
}

.calendar-date-events {
    display: grid;
    gap: 1rem;
}

.calendar-event-card {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.calendar-event-card:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-2px);
}

.event-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    padding-left: 1rem;
}

.event-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
    flex: 1;
}

.event-type {
    color: var(--pure-white);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-left: 1rem;
}

.event-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.event-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.event-info i {
    color: var(--accent-blue);
    width: 16px;
}

.event-description {
    color: var(--medium-gray);
    line-height: 1.5;
    margin: 1rem 0;
    font-size: 0.95rem;
}

.event-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    margin-top: 1rem;
}

.event-status.available {
    background: #e8f5e8;
    color: #2d5a2d;
}

.event-status.full {
    background: #fdf2f2;
    color: #c53030;
}

.calendar-event-card.full {
    opacity: 0.7;
}

@media (max-width: 768px) {
    .event-details {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .event-header {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .event-type {
        margin-left: 0;
    }
    
    /* Calendar responsive styles */
    .calendar-view-toggle {
        flex-direction: row;
        gap: 0.25rem;
    }
    
    .view-toggle-btn {
        flex: 1;
        padding: 0.7rem 1rem;
        font-size: 0.85rem;
        justify-content: center;
    }
    
    .monthly-calendar-header {
        padding: 1rem 1.5rem;
    }
    
    #current-month-year {
        font-size: 1.2rem;
    }
    
    .month-nav-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .calendar-cell {
        min-height: 70px;
        height: 70px;
        padding: 0.25rem;
    }
    
    .calendar-date {
        font-size: 0.8rem;
        margin-bottom: 0.125rem;
    }
    
    .calendar-event {
        font-size: 0.55rem;
        padding: 1px 4px;
        border-radius: 3px;
    }
    
    .calendar-header-cell {
        padding: 0.75rem 0.25rem;
        font-size: 0.75rem;
    }
    
    .calendar-more-events {
        font-size: 0.55rem;
    }
    
    /* Weekly list view mobile styles */
    .weekly-view-header {
        padding: 1rem 1.5rem;
    }
    
    #current-week-range {
        font-size: 1.1rem;
    }
    
    .week-nav-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    .weekly-list-container {
        gap: 1.5rem;
    }
    
    .weekly-list-date-header {
        padding: 1.25rem 1.5rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .weekly-date-info {
        align-self: stretch;
    }
    
    .weekly-day-name {
        font-size: 1.1rem;
    }
    
    .weekly-day-badge {
        align-self: flex-end;
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
        min-width: 35px;
    }
    
    .weekly-list-events {
        padding: 1.25rem 1.5rem;
        gap: 0.75rem;
    }
    
    .weekly-list-event-card {
        padding: 1.25rem;
    }
    
    .event-time-status-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .event-time-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .event-status-badge {
        font-size: 0.7rem;
        padding: 0.35rem 0.8rem;
    }
    
    .event-card-title {
        font-size: 1.2rem;
        margin-bottom: 0.5rem;
    }
    
    .event-card-details {
        flex-direction: column;
        gap: 0.5rem;
        margin-bottom: 0.75rem;
    }
    
    .event-detail-item {
        font-size: 0.85rem;
    }
    
    .event-card-description {
        font-size: 0.9rem;
    }
    
    .event-type-indicator {
        font-size: 0.65rem;
        padding: 0.4rem 0.8rem;
    }
    
    .weekly-no-events-today {
        padding: 1.5rem;
        font-size: 0.9rem;
    }
}

/* Animations */
@keyframes geometricMove {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(-60px) translateY(-60px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.4; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.8; }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.7; }
    50% { transform: scale(1.2); opacity: 1; }
}

@keyframes dataFlow {
    0% { opacity: 0; transform: scaleX(0); }
    50% { opacity: 1; transform: scaleX(1); }
    100% { opacity: 0; transform: scaleX(0); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--pure-white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-medium);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .ai-visualization {
        width: 300px;
        height: 300px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .footer-section {
        text-align: center;
    }

    .footer-logo {
        justify-content: center;
    }

    .contact-info p {
        justify-content: center;
    }

    .business-info {
        flex-direction: column;
        gap: 0.25rem;
    }

    .business-info .divider {
        display: none;
    }

    /* Student Community Mobile */
    .student-community {
        padding: 3rem 0;
    }

    .community-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin: 2rem 0;
    }

    .community-feature-card {
        padding: 1.5rem;
    }

    .access-notice-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .community-access-notice {
        padding: 1.5rem;
        margin: 2rem 0;
    }

    /* Seminar Inquiry Notice Mobile */
    .seminar-inquiry-notice {
        padding: 1.5rem;
        margin-top: 1.5rem;
    }

    .inquiry-notice-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .btn-outline {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 1rem;
    }

    .btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
}

/* Page-specific Styles */

/* Page Header */
.page-header {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, var(--light-gray) 0%, rgba(0, 102, 204, 0.1) 100%);
    position: relative;
    overflow: hidden;
}

.page-header:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(0,102,204,0.1)"/><circle cx="80" cy="80" r="1.5" fill="rgba(0,102,204,0.08)"/><circle cx="60" cy="30" r="1" fill="rgba(0,102,204,0.06)"/></svg>');
    animation: float 20s infinite linear;
}

.header-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Services Detail Styles */
.services-detail {
    padding: 80px 0;
}


.services-detail .container {
    max-width: 1400px;
    margin: 0 auto;
}

.service-detail-card {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    margin-bottom: 0;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-detail-header {
    background: var(--light-gray);
    padding: 2.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.service-detail-icon {
    width: 80px;
    height: 80px;
    background: var(--tech-gradient);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--pure-white);
    flex-shrink: 0;
}

.service-detail-info h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.service-tag {
    background: var(--accent-blue);
    color: var(--pure-white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    width: fit-content;
    min-width: 140px;
    text-align: center;
    display: inline-block;
}

.service-detail-content {
    padding: 2.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.service-detail-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.service-description p {
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.service-features-detailed {
    margin-bottom: 2rem;
}

.features-list {
    display: grid;
    gap: 1.5rem;
    margin-top: 1rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-item i {
    color: var(--accent-blue);
    font-size: 1.2rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.feature-item p {
    color: var(--medium-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

.service-benefits ul {
    list-style: none;
    margin-top: 1rem;
}

.service-benefits li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.8rem;
    color: var(--primary-black);
}

.service-benefits li:before {
    content: '✓';
    color: var(--accent-blue);
    font-weight: bold;
    font-size: 1.1rem;
}

/* Course Tabs */
.course-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 3rem auto 4rem;
    max-width: 600px;
    padding: 0 1rem;
}

.tab-btn {
    flex: 1;
    max-width: 180px;
    padding: 0.85rem 1.5rem;
    background: var(--pure-white);
    border: 2px solid rgba(0, 102, 204, 0.2);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
}

.tab-btn i {
    font-size: 1.3rem;
    color: var(--medium-gray);
    transition: all 0.3s ease;
}

.tab-btn span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-black);
    transition: all 0.3s ease;
}

.tab-btn:hover {
    border-color: var(--accent-blue);
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.tab-btn:hover i {
    color: var(--accent-blue);
}

.tab-btn.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-medium);
}

.tab-btn.active i,
.tab-btn.active span {
    color: var(--pure-white);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.tab-intro h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: 0.75rem;
}

.tab-intro p {
    font-size: 1.2rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Service Category Styles */
.service-category {
    margin-bottom: 5rem;
}

.service-category:last-child {
    margin-bottom: 0;
}

.category-header {
    text-align: center;
    margin-bottom: 3rem;
}

.category-header i {
    font-size: 4rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
    display: block;
}

.category-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: 0.75rem;
}

.category-header p {
    font-size: 1.2rem;
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Course Grid */
.course-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

/* Course Card Styles */
.course-card {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-strong);
}

.course-header {
    background: var(--light-gray);
    padding: 2rem;
    border-bottom: 3px solid var(--accent-blue);
}

.course-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: 0.5rem;
}

.course-subtitle {
    font-size: 1rem;
    color: var(--medium-gray);
    margin: 0;
}

.course-content {
    padding: 2rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.course-section h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: 1rem;
}

/* Course Tools */
.course-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--accent-blue);
    color: var(--pure-white);
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Course Outcome */
.course-outcome {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f0fe 100%);
    border-left: 4px solid var(--accent-blue);
    padding: 1.25rem 1.5rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
}

.course-outcome i {
    font-size: 1.8rem;
    color: var(--accent-blue);
    flex-shrink: 0;
}

.course-outcome span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-black);
    line-height: 1.4;
}

/* Seminar Calendar */
.seminar-calendar {
    background: var(--light-gray);
    padding: 80px 0;
}

.calendar-container {
    max-width: none;
    margin: 0;
}

.calendar-placeholder {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    padding: 4rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-subtle);
    border: 2px dashed rgba(0, 102, 204, 0.3);
}

.calendar-loading i {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
    animation: spin 2s linear infinite;
}

.calendar-loading p {
    font-size: 1.2rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.calendar-loading small {
    color: var(--medium-gray);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* CTA Section Full */
.cta-section-full {
    background: var(--primary-black);
    color: var(--pure-white);
    padding: 80px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* About Page Styles */
.mission-vision {
    padding: 80px 0;
    background: var(--light-gray);
}

.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.mission-card, .vision-card {
    background: var(--pure-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
}

.mission-card:hover, .vision-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.mission-icon, .vision-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--pure-white);
}

.mission-card h3, .vision-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.about-details {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--primary-black);
}

.about-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--medium-gray);
}

.about-description p strong {
    color: var(--primary-black);
}

.about-visual {
    display: flex;
    justify-content: center;
}

.about-stats {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.stat-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: var(--tech-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    text-align: center;
}

.stat-inner .stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--pure-white);
    background: none;
    -webkit-text-fill-color: initial;
}

.stat-inner .stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.stat-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-item-small {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--pure-white);
    padding: 0.8rem 1.2rem;
    border-radius: 25px;
    box-shadow: var(--shadow-subtle);
    font-size: 0.9rem;
    font-weight: 500;
}

.stat-item-small i {
    color: var(--accent-blue);
}

/* Core Values */
.core-values {
    padding: 80px 0;
    background: var(--light-gray);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.value-card {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    position: relative;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    overflow: hidden;
}

.value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.value-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(0, 102, 204, 0.1);
    line-height: 1;
}

.value-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
    position: relative;
    z-index: 2;
}

.value-content p {
    color: var(--medium-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 2;
}

.value-icon {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    color: var(--accent-blue);
    opacity: 0.7;
}

/* Research Areas */
.research-areas {
    padding: 80px 0;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.research-card {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border-top: 4px solid var(--accent-blue);
}

.research-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

/* 맞춤형 개발 카드 링크 스타일 */
.research-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
}

/* 맞춤형 개발 카드 특별 스타일 */
.research-card.custom-dev {
    background: linear-gradient(135deg, var(--pure-white) 0%, #f8f9fa 100%);
    border-top: 4px solid #6366f1;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.research-card.custom-dev::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: all 0.6s ease;
}

.research-card.custom-dev:hover::before {
    left: 100%;
}

.research-card.custom-dev:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
    border-top-color: #4f46e5;
    background: linear-gradient(135deg, #f8f9ff 0%, #f0f4ff 100%);
}

.research-card.custom-dev .research-icon {
    background: linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
    transition: all 0.3s ease;
}

.research-card.custom-dev:hover .research-icon {
    transform: scale(1.1) rotateY(10deg);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.4);
}

.external-link-indicator {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 30px;
    height: 30px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    color: #6366f1;
}

.research-card.custom-dev:hover .external-link-indicator {
    opacity: 1;
    transform: scale(1.1);
    background: rgba(99, 102, 241, 0.2);
}

.research-card.custom-dev h3 {
    color: var(--primary-black);
    transition: color 0.3s ease;
}

.research-card.custom-dev:hover h3 {
    color: #4f46e5;
}

.research-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-black);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 1.8rem;
    color: var(--pure-white);
}

.research-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.research-card p {
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.research-topics {
    list-style: none;
    text-align: left;
}

.research-topics li {
    padding: 0.4rem 0;
    color: var(--primary-black);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.research-topics li:last-child {
    border-bottom: none;
}

.research-topics li:before {
    content: '→';
    color: var(--accent-blue);
    margin-right: 0.5rem;
    font-weight: bold;
}

/* Timeline */
.timeline-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline:before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-blue);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    justify-content: flex-end;
    text-align: right;
}

.timeline-item:nth-child(even) {
    justify-content: flex-start;
    text-align: left;
}

.timeline-date {
    background: var(--accent-blue);
    color: var(--pure-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    font-size: 0.9rem;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.timeline-content {
    background: var(--pure-white);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
    width: calc(50% - 40px);
    position: relative;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: 40px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: 40px;
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.timeline-content p {
    color: var(--medium-gray);
    font-size: 0.95rem;
    line-height: 1.5;
}

.timeline-item.future .timeline-content {
    background: rgba(0, 102, 204, 0.05);
    border: 1px dashed var(--accent-blue);
}

/* News Page Styles */
.featured-news {
    padding: 80px 0;
}

.featured-article {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: var(--pure-white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.featured-image {
    background: var(--light-gray);
}

.featured-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--medium-gray);
    font-size: 1.1rem;
}

.featured-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.featured-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.news-category {
    color: var(--pure-white);
    padding: 6px 14px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 카테고리별 색상 구분 */
.news-category.center {
    background: #2563eb;
}

.news-category.ai-tech {
    background: #7c3aed;
}

.news-category.ai-education {
    background: #059669;
}

.news-category:not(.center):not(.ai-tech):not(.ai-education) {
    background: var(--secondary-black);
}

.news-date {
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.featured-title {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-black);
    line-height: 1.3;
}

.featured-excerpt {
    color: var(--medium-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.read-more-btn {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.read-more-btn:hover {
    color: var(--primary-black);
}

.news-grid-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.news-filters {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--pure-white);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--primary-black);
    background: #f9fafb;
    color: var(--primary-black);
}

.filter-btn.active {
    background: var(--primary-black);
    color: var(--pure-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.news-card {
    background: var(--pure-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 0, 0, 0.1);
}

.news-card a {
    text-decoration: none;
    color: inherit;
    display: block;
}

.news-image {
    height: 220px;
    background: #f8fafc;
    overflow: hidden;
    position: relative;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-placeholder {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.news-placeholder i {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
}

.news-content {
    padding: 1.8rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-black);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    overflow: hidden;
}

.news-excerpt,
.news-description {
    color: var(--medium-gray);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    overflow: hidden;
}

.news-tags {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.news-tags .tag {
    background: #f1f5f9;
    color: #475569;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
}

.news-tags .tag:hover {
    background: #e2e8f0;
    color: #334155;
}

.tag {
    background: rgba(0, 102, 204, 0.1);
    color: var(--accent-blue);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 3rem;
}

.pagination-link {
    padding: 0.5rem 1rem;
    background: var(--pure-white);
    color: var(--primary-black);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.pagination-link:hover,
.pagination-link.active {
    background: var(--primary-black);
    color: var(--pure-white);
}

/* ======================
   전문적인 뉴스 디자인 개선
   ====================== */

/* Featured 뉴스 개선 */
.featured-news {
    background: var(--pure-white);
    border-bottom: 1px solid #e2e8f0;
}

.featured-article {
    background: var(--pure-white);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    border: 1px solid #f1f5f9;
}

.featured-image {
    background: #f8fafc;
    position: relative;
    overflow: hidden;
}

.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-content {
    padding: 2.5rem;
}

.featured-title {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--primary-black);
    margin-bottom: 1.2rem;
}

.featured-excerpt {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #4b5563;
    margin-bottom: 2rem;
}

.read-more-btn {
    background: var(--primary-black);
    color: var(--pure-white);
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.read-more-btn:hover {
    background: var(--secondary-black);
    transform: translateX(2px);
}

/* 로딩 상태 */
.loading-container {
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.loading-spinner i {
    font-size: 2rem;
    color: #3b82f6;
    animation: spin 1s linear infinite;
}

.loading-spinner p {
    color: var(--medium-gray);
    font-size: 1.1rem;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* 에러 상태 */
.error-container {
    text-align: center;
    padding: 4rem 2rem;
}

.error-content i {
    font-size: 3rem;
    color: #ef4444;
    margin-bottom: 1.5rem;
}

.error-content h3 {
    color: var(--primary-black);
    margin-bottom: 0.8rem;
    font-size: 1.5rem;
}

.error-content p {
    color: var(--medium-gray);
    margin-bottom: 2rem;
}

/* 빈 상태 */
.no-news-message {
    text-align: center;
    padding: 4rem 2rem;
    grid-column: 1 / -1;
}

.no-news-message i {
    font-size: 3rem;
    color: #9ca3af;
    margin-bottom: 1.5rem;
}

.no-news-message h3 {
    color: var(--primary-black);
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
}

/* 필터 버튼 개선 */
.filter-btn {
    background: var(--pure-white);
    border: 2px solid #e5e7eb;
    color: #374151;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.filter-btn:hover {
    border-color: var(--primary-black);
    background: #f9fafb;
}

.filter-btn.active {
    background: var(--primary-black);
    color: var(--pure-white);
    border-color: var(--primary-black);
}

/* ================================
   뉴스 상세 페이지 스타일 - 모던 디자인
   ================================ */

/* 모던 브레드크럼 */
.detail-breadcrumb-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-bottom: 1px solid #e2e8f0;
    padding: 1rem 0;
}

.detail-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: #64748b;
}

.breadcrumb-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    text-decoration: none;
    transition: all 0.2s ease;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
}

.breadcrumb-link:hover {
    color: var(--primary-black);
    background: rgba(59, 130, 246, 0.1);
}

.breadcrumb-separator {
    color: #cbd5e1;
    font-size: 0.75rem;
}

.breadcrumb-current {
    color: var(--primary-black);
    font-weight: 600;
}

/* 모던 아티클 헤더 */
.modern-article-header {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 3rem 0 2rem;
    border-bottom: 1px solid #e2e8f0;
}

.article-header-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.article-meta-top {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.modern-category {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.modern-category.center {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border-color: #93c5fd;
}

.modern-category.ai-tech {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #7c3aed;
    border-color: #c4b5fd;
}

.modern-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 500;
}

.modern-article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--primary-black);
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modern-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.modern-article-tags .tag {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: #475569;
    padding: 0.5rem 1rem;
    border-radius: 1.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.modern-article-tags .tag:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.article-header-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 1rem;
    border: 1px solid #e2e8f0;
}

.header-action-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.action-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* 모던 이미지 섹션 */
.modern-article-image-section {
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.modern-category.center {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
    border-color: #93c5fd;
}

.modern-category.ai-tech {
    background: linear-gradient(135deg, #f3e8ff 0%, #e9d5ff 100%);
    color: #7c3aed;
    border-color: #c4b5fd;
}

.modern-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 500;
}

.modern-article-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--primary-black);
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modern-article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.modern-article-tags .tag {
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: #475569;
    padding: 0.5rem 1rem;
    border-radius: 1.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.modern-article-tags .tag:hover {
    background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.article-header-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 1rem;
    border: 1px solid #e2e8f0;
}

.header-action-buttons {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: 2.75rem;
    border: none;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.action-btn:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* 모던 이미지 섹션 */
.modern-article-image-section {
    margin: 0;
    padding: 0;
}

.modern-article-image-section .container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.modern-article-image {
    position: relative;
    border-radius: 0;
    overflow: hidden;
    box-shadow: none;
    margin-bottom: 0;
}

.modern-article-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: none;
}

.image-overlay {
    display: none;
}

/* 컨텐츠 레이아웃 */
.modern-article-content-section {
    padding: 0;
    margin-top: 0;
}

.centered-content-layout {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 메인 컨텐츠 */
.main-content-centered {
    width: 100%;
}

.modern-article-body {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}

.rich-content {
    padding: 3rem;
    line-height: 1.8;
    color: #374151;
    font-size: 1.1rem;
}

.rich-content h1,
.rich-content h2,
.rich-content h3,
.rich-content h4,
.rich-content h5,
.rich-content h6 {
    color: var(--primary-black);
    margin: 2.5rem 0 1.5rem;
    font-weight: 700;
}

.rich-content h1 { font-size: 2.25rem; }
.rich-content h2 { font-size: 1.875rem; }
.rich-content h3 { font-size: 1.5rem; }
.rich-content h4 { font-size: 1.25rem; }

.rich-content p {
    margin-bottom: 1.5rem;
}

.rich-content ul,
.rich-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
    list-style-position: inside;
}

.rich-content ul {
    list-style-type: disc;
}

.rich-content ol {
    list-style-type: decimal;
}

.rich-content li {
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
}

.rich-content blockquote {
    border-left: 4px solid #3b82f6;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    font-style: italic;
    color: #4b5563;
    border-radius: 0 0.5rem 0.5rem 0;
}

.rich-content code {
    background: #f1f5f9;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    color: #374151;
}

.rich-content img {
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    margin: 2rem 0;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* 아티클 푸터 */
.article-footer {
    border-top: 1px solid #e2e8f0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 2rem 3rem;
    margin-top: 2rem;
}

.article-meta-bottom {
    margin-bottom: 2rem;
}

.last-updated {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
}

.last-updated i {
    color: #3b82f6;
}

.article-actions-bottom {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    flex-wrap: wrap;
}

.share-section-modern h4 {
    color: var(--primary-black);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.reaction-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.reaction-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 2rem;
    background: white;
    color: #64748b;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.reaction-btn:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: #f0f9ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.nav-btn.primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.nav-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

/* 모던 관련 뉴스 */
.modern-related-news-section {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    padding: 4rem 0;
    border-top: 1px solid #e2e8f0;
}

.related-news-header {
    text-align: center;
    margin-bottom: 3rem;
}

.related-title {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-black);
    margin-bottom: 0.75rem;
}

.related-title i {
    color: #3b82f6;
}

.related-subtitle {
    color: #64748b;
    font-size: 1.1rem;
    max-width: 500px;
    margin: 0 auto;
}

.modern-related-news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.modern-related-news-grid .related-news-item {
    background: white;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.modern-related-news-grid .related-news-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.modern-related-news-grid .related-news-item a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.modern-related-news-grid .related-news-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.modern-related-news-grid .related-news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.modern-related-news-grid .related-news-item:hover .related-news-image img {
    transform: scale(1.05);
}

.modern-related-news-grid .news-placeholder {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    color: #94a3b8;
    font-size: 2.5rem;
}

.modern-related-news-grid .related-news-content {
    padding: 1.5rem;
}

.modern-related-news-grid .news-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.modern-related-news-grid .related-news-title {
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--primary-black);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    overflow: hidden;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .modern-article-header {
        padding: 2rem 0 1.5rem;
    }

    .article-header-wrapper {
        padding: 0 1rem;
    }

    .modern-article-title {
        font-size: 2rem;
    }

    .centered-content-layout {
        max-width: 100%;
        padding: 0 1rem;
    }

    .rich-content {
        padding: 2rem 1.5rem;
    }

    .article-footer {
        padding: 1.5rem;
    }

    .article-actions-bottom {
        flex-direction: column;
        gap: 1.5rem;
    }

    .reaction-buttons {
        justify-content: center;
    }

    .modern-related-news-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .article-header-actions {
        padding: 1rem;
        margin-top: 1rem;
    }

    .header-action-buttons {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
    }

    .article-header-actions-right {
        justify-content: center;
        margin-top: 1.5rem;
    }

    .header-action-buttons-right {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.75rem;
    }
}

@media (max-width: 480px) {
    .modern-article-tags {
        justify-content: center;
    }

    .article-meta-top {
        justify-content: center;
        text-align: center;
    }

    .breadcrumb-link span {
        display: none;
    }
}

/* ======================
   우측 액션 버튼 스타일
   ====================== */

.article-header-actions-right {
    margin-top: 2rem;
    display: flex;
    justify-content: flex-end;
}

.header-action-buttons-right {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.action-btn-right {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 2px solid #e2e8f0;
    border-radius: 50%;
    background: white;
    color: #64748b;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.action-btn-right:hover {
    border-color: #3b82f6;
    color: #3b82f6;
    background: #f0f9ff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

/* ======================
   토스트 메시지
   ====================== */

.toast-message {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary-black);
    color: var(--pure-white);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
}

.toast-message.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast-message i {
    color: #22c55e;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .toast-message {
        left: 1rem;
        right: 1rem;
        transform: translateY(100px);
    }

    .toast-message.show {
        transform: translateY(0);
    }
}

.newsletter-section {
    background: var(--secondary-black);
    color: var(--pure-white);
    padding: 60px 0;
}

.newsletter-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.newsletter-text h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.newsletter-text p {
    color: rgba(255, 255, 255, 0.8);
}

.newsletter-input {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.newsletter-input input {
    padding: 0.8rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    min-width: 300px;
    background: var(--pure-white);
}

.newsletter-input input:focus {
    outline: 2px solid var(--accent-blue);
}

/* Contact Page Styles */
.contact-info-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    border-top: 4px solid var(--accent-blue);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--pure-white);
}

.contact-details h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.contact-details p {
    color: var(--primary-black);
    margin-bottom: 0.5rem;
    line-height: 1.5;
}

.contact-details small {
    color: var(--medium-gray);
    font-size: 0.85rem;
}

.contact-details a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.contact-form-section {
    padding: 80px 0;
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.form-container {
    background: var(--pure-white);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.form-header {
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.form-header p {
    color: var(--medium-gray);
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--primary-black);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.8rem;
    border: 1px solid rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: var(--font-primary);
}

.form-group textarea {
    resize: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(0, 102, 204, 0.1);
}

.checkbox-group {
    flex-direction: row !important;
    align-items: flex-start;
    gap: 0.8rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    cursor: pointer;
    font-size: 0.95rem;
    line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
    opacity: 0;
    position: absolute;
    width: 0;
    height: 0;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid var(--medium-gray);
    border-radius: 3px;
    flex-shrink: 0;
    position: relative;
    transition: all 0.3s ease;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background-color: var(--accent-blue);
    border-color: var(--accent-blue);
}

.checkbox-label input[type="checkbox"]:checked + .checkmark:after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.privacy-link {
    color: var(--accent-blue);
    text-decoration: none;
}

.privacy-link:hover {
    text-decoration: underline;
}

.submit-btn {
    margin-top: 1rem;
    align-self: flex-start;
}

.submit-btn:disabled {
    background: var(--medium-gray);
    cursor: not-allowed;
}

.contact-sidebar {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.quick-contact,
.social-links {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
}

.quick-contact h3,
.social-links h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--primary-black);
}

.quick-contact-items {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.quick-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.quick-item i {
    color: var(--accent-blue);
    font-size: 1.2rem;
    margin-top: 2px;
}

.quick-item h4 {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
    color: var(--primary-black);
}

.quick-item p {
    font-size: 0.9rem;
    color: var(--medium-gray);
    line-height: 1.4;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
    background: var(--light-gray);
    color: var(--primary-black);
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition);
}

.social-btn:hover {
    background: var(--primary-black);
    color: var(--pure-white);
}

.social-btn.youtube:hover {
    background: #ff0000;
}

.social-btn.threads:hover {
    background: #000000;
}

.social-btn.naver:hover {
    background: #03c75a;
}

.social-btn.daangn:hover {
    background: #ff6f0f;
}

.map-section {
    padding: 80px 0;
}

.map-container {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.map-embed {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
}

.map-embed iframe {
    width: 100%;
    height: 400px;
    border: 0;
    border-radius: var(--border-radius);
}

.location-details {
    background: var(--pure-white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-subtle);
}

.location-details h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--primary-black);
}

.transport-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.transport-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.transport-item:last-child {
    border-bottom: none;
}

.transport-item i {
    color: var(--accent-blue);
    font-size: 1.3rem;
    margin-top: 2px;
}

.transport-item h4 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
    color: var(--primary-black);
}

.transport-item p {
    font-size: 0.9rem;
    color: var(--medium-gray);
    line-height: 1.4;
}


/* Enhanced Responsive Design */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .map-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .featured-article {
        grid-template-columns: 1fr;
    }
    
    .featured-image {
        height: 250px;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    
    .map-container {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .map-embed iframe {
        height: 300px;
    }
    
    .research-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .newsletter-content {
        flex-direction: column;
        text-align: center;
    }
    
    .newsletter-input input {
        min-width: 250px;
    }
    
    .timeline:before {
        left: 2rem;
    }

    .timeline-item {
        margin-left: 3rem;
        justify-content: flex-start !important;
        text-align: left !important;
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-item:before {
        content: '';
        position: absolute;
        left: 2rem;
        top: 10px;
        width: 12px;
        height: 12px;
        background: var(--accent-blue);
        border: 3px solid var(--pure-white);
        border-radius: 50%;
        transform: translateX(-50%);
        z-index: 10;
    }

    .timeline-date {
        position: relative;
        left: auto;
        transform: none;
        margin-bottom: 0.75rem;
        z-index: 10;
    }

    .timeline-content {
        width: calc(100% - 4rem) !important;
        margin: 0 !important;
        position: relative;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .service-detail-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .service-detail-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .stat-items {
        align-items: center;
    }
    
    .form-container {
        padding: 1.5rem;
    }
    
    .newsletter-input {
        flex-direction: column;
        width: 100%;
    }
    
    .newsletter-input input {
        min-width: auto;
        width: 100%;
    }
}

/* =============================================
   강의 신청 모달 스타일
   ============================================= */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal[style*="flex"],
.modal[style*="block"] {
    opacity: 1;
    visibility: visible;
    display: flex !important;
}

.modal-content {
    background: var(--pure-white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-strong);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.7) translateY(50px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal[style*="flex"] .modal-content,
.modal[style*="block"] .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem 2rem 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
}

.modal-close {
    font-size: 2rem;
    color: var(--medium-gray);
    cursor: pointer;
    transition: var(--transition);
    padding: 0.5rem;
    line-height: 1;
    border: none;
    background: none;
}

.modal-close:hover {
    color: var(--primary-black);
    transform: scale(1.1);
}

.modal-body {
    padding: 2rem;
}

.modal-body h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-black);
    background: var(--light-gray);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    border-left: 4px solid var(--accent-blue);
}

.modal-body h4:first-of-type {
    margin-top: 0;
}

.modal-body p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    padding-left: 1rem;
}

.modal-body p:last-of-type {
    margin-bottom: 0;
}

/* 선택된 이벤트 정보 카드 */
.selected-event-info {
    margin-bottom: 2rem;
}

.selected-event-card {
    background: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border-left: 4px solid var(--accent-blue);
}

.selected-event-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.selected-event-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-black);
    margin: 0;
    flex: 1;
}

.selected-event-type {
    background: var(--accent-blue);
    color: var(--pure-white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
    margin-left: 1rem;
}

.selected-event-details {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--medium-gray);
    font-size: 0.9rem;
}

.detail-item i {
    color: var(--accent-blue);
    width: 16px;
    font-size: 0.9rem;
}

.selected-event-description {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--medium-gray);
    font-size: 0.9rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-wrap: break-word;
}

/* 신청 폼 */
.application-form {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    display: grid;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--primary-black);
    font-size: 0.9rem;
}

.form-group input {
    padding: 0.75rem 1rem;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition);
    background: var(--pure-white);
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-group input::placeholder {
    color: var(--medium-gray);
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1rem;
}

.form-actions .btn {
    min-width: 120px;
}

/* 문의 폼 개선된 스타일 */
.inquiry-form .form-group {
    margin-bottom: 1.5rem;
}

.inquiry-form .form-group:last-child {
    margin-bottom: 0;
}

/* 체크박스 그룹 스타일 */
.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    min-width: 18px;
    margin: 0;
    accent-color: var(--accent-blue);
    cursor: pointer;
}

.checkbox-group label {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--primary-black);
    cursor: pointer;
    margin-bottom: 0;
}

/* 폼 필드 간격 개선 */
.inquiry-form .form-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--primary-black);
    display: block;
}

.inquiry-form .form-group input[type="text"],
.inquiry-form .form-group input[type="tel"],
.inquiry-form .form-group input[type="email"] {
    padding: 0.875rem 1rem;
    border: 2px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
}

.inquiry-form .form-group input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.inquiry-form .form-actions {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

/* =============================================
   이벤트 카드 호버 효과 및 인터랙션
   ============================================= */

/* 주간 리스트 이벤트 카드 호버 효과 */
.weekly-list-event-card {
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.weekly-list-event-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.weekly-list-event-card:hover .apply-overlay {
    opacity: 1;
    visibility: visible;
}

.apply-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 102, 204, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    font-weight: 600;
    gap: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    cursor: pointer;
}

.apply-overlay i {
    font-size: 1.5rem;
    animation: bounce 2s infinite;
}

.apply-overlay span {
    font-size: 1rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* 마감된 이벤트는 클릭 불가능하게 표시 */
.weekly-list-event-card.full {
    opacity: 0.7;
}

.weekly-list-event-card.full:hover {
    transform: none;
    box-shadow: var(--shadow-subtle);
}

.weekly-list-event-card.full .apply-overlay {
    background: rgba(102, 102, 102, 0.8);
}

.weekly-list-event-card.full .apply-overlay span {
    content: '마감됨';
}

/* 월간 캘린더 이벤트 호버 효과 */
.calendar-event {
    transition: var(--transition);
    position: relative;
}

.calendar-event:hover {
    transform: scale(1.05);
    z-index: 10;
    box-shadow: var(--shadow-medium);
}

.calendar-event.full {
    opacity: 0.6;
    text-decoration: line-through;
}

.calendar-event.full:hover {
    transform: scale(1.02);
}

/* 반응형 모달 */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 1rem;
    }

    .modal-header {
        padding: 1.5rem 1.5rem 1rem;
    }

    .modal-body {
        padding: 1.5rem;
    }

    .selected-event-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .selected-event-type {
        margin-left: 0;
        align-self: flex-start;
    }

    .form-actions {
        flex-direction: column-reverse;
    }

    .form-actions .btn {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .modal-header h2 {
        font-size: 1.25rem;
    }

    .selected-event-card {
        padding: 1rem;
    }

    .selected-event-header h3 {
        font-size: 1.1rem;
    }

    .apply-overlay i {
        font-size: 1.25rem;
    }

    .apply-overlay span {
        font-size: 0.9rem;
    }
}

/* Course Category Responsive */
@media (max-width: 768px) {
    .course-tabs {
        gap: 0.75rem;
        margin: 2rem auto 3rem;
        max-width: 500px;
    }

    .tab-btn {
        padding: 0.75rem 1.25rem;
        max-width: 160px;
    }

    .tab-btn i {
        font-size: 1.2rem;
    }

    .tab-btn span {
        font-size: 0.95rem;
    }

    .tab-intro {
        margin-bottom: 2rem;
    }

    .tab-intro h2 {
        font-size: 2rem;
    }

    .tab-intro p {
        font-size: 1rem;
    }

    .course-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .category-header {
        margin-bottom: 2rem;
    }

    .category-header i {
        font-size: 3rem;
    }

    .category-header h2 {
        font-size: 2rem;
    }

    .category-header p {
        font-size: 1rem;
    }

    .service-category {
        margin-bottom: 4rem;
    }

    .course-header h3 {
        font-size: 1.3rem;
    }

    .course-content {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .course-tabs {
        gap: 0.5rem;
        margin: 1.5rem auto 2.5rem;
        flex-wrap: wrap;
    }

    .tab-btn {
        max-width: 140px;
        padding: 0.7rem 1rem;
    }

    .tab-btn i {
        font-size: 1.1rem;
    }

    .tab-btn span {
        font-size: 0.9rem;
    }

    .tab-intro h2 {
        font-size: 1.75rem;
    }

    .tab-intro p {
        font-size: 0.95rem;
    }

    .category-header i {
        font-size: 2.5rem;
    }

    .category-header h2 {
        font-size: 1.75rem;
    }

    .category-header p {
        font-size: 0.95rem;
    }

    .course-header {
        padding: 1.5rem;
    }

    .course-header h3 {
        font-size: 1.2rem;
    }

    .course-subtitle {
        font-size: 0.9rem;
    }

    .course-content {
        padding: 1.25rem;
        gap: 1.25rem;
    }

    .course-outcome {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
    }

    .course-outcome i {
        font-size: 1.5rem;
    }

    .course-outcome span {
        font-size: 0.95rem;
    }

    .tool-badge {
        font-size: 0.85rem;
        padding: 0.35rem 0.85rem;
    }
}

/* Education Popup */
.education-popup {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.education-popup.show {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--pure-white);
    border-radius: 16px;
    box-shadow: var(--shadow-strong);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    position: relative;
    animation: popupSlideIn 0.4s ease-out;
}

@keyframes popupSlideIn {
    from {
        transform: scale(0.9) translateY(-20px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.popup-header {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 10;
    padding: 1rem;
}

.popup-close {
    background: rgba(0, 0, 0, 0.6);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.popup-close i {
    color: var(--pure-white);
    font-size: 1.5rem;
}

.popup-close:hover {
    background: rgba(0, 0, 0, 0.8);
    transform: rotate(90deg);
}

.popup-image-link {
    display: block;
    cursor: pointer;
}

.popup-image {
    width: 100%;
    height: auto;
    display: block;
}

.popup-footer {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.popup-today-close,
.popup-close-btn {
    flex: 1;
    padding: 0.85rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.popup-today-close {
    background: var(--pure-white);
    color: var(--primary-black);
    border: 2px solid var(--medium-gray);
}

.popup-today-close:hover {
    background: var(--medium-gray);
    color: var(--pure-white);
}

.popup-close-btn {
    background: var(--accent-blue);
    color: var(--pure-white);
}

.popup-close-btn:hover {
    background: #005bb5;
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* Popup Responsive */
@media (max-width: 768px) {
    .popup-content {
        max-width: 95%;
        width: 95%;
    }

    .popup-footer {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1.25rem;
    }

    .popup-today-close,
    .popup-close-btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .popup-header {
        padding: 0.75rem;
    }

    .popup-close {
        width: 35px;
        height: 35px;
    }

    .popup-close i {
        font-size: 1.3rem;
    }

    .popup-footer {
        padding: 1rem;
    }

    .popup-today-close,
    .popup-close-btn {
        padding: 0.7rem 1rem;
        font-size: 0.9rem;
    }
}