/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

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

:root {
    --primary-green: #1a472a;
    --secondary-green: #2d5a3f;
    --accent-green: #3d7a4e;
    --light-green: #f1f8f3;
    --white: #ffffff;
    --text-color: #2c3e50;
    --text-muted: #576574;
    --text-light: #f8f9fa;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --glow-green: 0 0 20px rgba(61, 122, 78, 0.3);
    --card-border: 1px solid rgba(26, 71, 42, 0.18);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
.main-nav a {
    font-family: 'Playfair Display', serif;
}

/* Header Styles */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.75rem 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(26, 71, 42, 0.1);
    transition: var(--transition-smooth);
}

.site-header.scrolled {
    padding: 0.5rem 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1300px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.main-logo {
    height: 50px;
    width: auto;
    transition: var(--transition-smooth);
}

.site-header.scrolled .main-logo {
    height: 45px;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--primary-green);
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-green);
    transition: var(--transition-smooth);
}

.main-nav a:hover {
    color: var(--accent-green);
}

.main-nav a:hover::after {
    width: 100%;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--primary-green);
    margin: 5px 0;
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
    height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.35);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards 0.2s;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.8rem);
    font-weight: 300;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--light-green);
    letter-spacing: 2px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s forwards 0.5s;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    animation: bounce 2s infinite;
}

.scroll-indicator svg {
    width: 30px;
    height: 30px;
    fill: var(--white);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) translateX(-50%);
    }

    40% {
        transform: translateY(-10px) translateX(-50%);
    }

    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* AOS Animations */
[data-aos] {
    opacity: 0;
    transition-property: transform, opacity;
    transition-duration: 0.8s;
    transition-timing-function: ease-out;
}

[data-aos="fade-up"] {
    transform: translateY(30px);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translate(0);
}

/* Mobile Nav Adjustments */
@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
        z-index: 1001;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--white);
        display: flex;
        align-items: center;
        justify-content: center;
        transition: var(--transition-smooth);
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
        z-index: 1000;
        visibility: hidden;
    }

    .main-nav.active {
        right: 0;
        visibility: visible;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 2rem;
    }

    .main-nav a {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .no-scroll {
        overflow: hidden;
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

/* Sections */
.about-section,
.programs-section,
.students-section,
.contact-section {
    padding: 6rem 0;
    overflow: hidden;
}

.about-section,
.programs-section {
    background-color: var(--white);
}

.about-section h2,
.programs-section h2,
.students-section h1,
.contact-section h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 4rem;
    text-align: center;
    color: var(--primary-green);
    font-weight: 700;
    position: relative;
}

.about-section h2::after,
.programs-section h2::after,
.students-section h1::after,
.contact-section h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent-green);
}

.about-section p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
}

/* Program Logos */
.program-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 1rem;
    padding: 0.5rem;
}

.program-logo {
    height: 60px;
    width: auto;
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
}

.program-logo:first-child,
.program-logo:last-child {
    height: 60px;
}

.program-logo:hover {
    transform: scale(1.05);
}

/* Footer */
.site-footer {
    background: var(--primary-green);
    padding: 2rem 0;
    text-align: center;
    color: var(--light-green);
}

.footer-logo {
    height: 50px;
    width: auto;
    margin-bottom: 0.75rem;
}

.site-footer p {
    color: var(--light-green);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .main-nav ul {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .program-logos {
        flex-direction: column;
        align-items: center;
    }

    p,
    .content-block p,
    .about-section p,
    .mission-list li {
        font-size: 0.95rem;
        line-height: 1.5;
    }
}

/* Additional Classic Typography Styles */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Source Han Sans CN", "WenQuanYi Micro Hei", sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
    line-height: 1.2;
    margin-bottom: 0.75rem;
}

/* Base Typography */
p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Source Han Sans CN", "WenQuanYi Micro Hei", sans-serif;
}

.content-block p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.content-block blockquote p {
    line-height: 1.0;
    margin-bottom: 0.5rem;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--accent-green);
    color: var(--light-green);
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB", "Heiti SC", "Source Han Sans CN", "WenQuanYi Micro Hei", sans-serif;
}

.btn:hover {
    background-color: var(--secondary-green);
}

/* Content Blocks / Cards */
.content-block {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    border: var(--card-border);
    transition: var(--transition-smooth);
}

.content-block:hover {
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
    transform: translateY(-4px);
}

.content-block p {
    margin-bottom: 1rem;
    line-height: 1.6;
}

/* Administration Grid */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.admin-card {
    background-color: var(--white);
    padding: 2.5rem 1.5rem;
    border-radius: 12px;
    text-align: center;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.admin-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.admin-card h3 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.admin-card p {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.stat-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.stat-card h3 {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
}

.stat-card ul {
    list-style-type: none;
    padding: 0;
}

.stat-card li {
    margin-bottom: 0.8rem;
    padding-left: 2rem;
    position: relative;
    font-weight: 500;
}

.stat-card li::before {
    content: "→";
    color: var(--accent-green);
    position: absolute;
    left: 0;
    font-weight: 700;
}

/* Curriculum Styles */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.course-category {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.course-category:hover {
    transform: translateY(-8px);
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
}

.course-category h3 {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
    text-align: left;
    border-bottom: 2px solid var(--light-green);
    padding-bottom: 0.5rem;
}

.course-category ul {
    list-style-type: none;
    padding: 0;
}

.course-category li {
    margin-bottom: 0.6rem;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.95rem;
}

.course-category li::before {
    content: "•";
    color: var(--accent-green);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.core-courses {
    margin-top: 4rem;
}

.core-courses h3 {
    color: var(--primary-green);
    text-align: center;
    margin-bottom: 3rem;
}

.core-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.core-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
}

.core-card h4 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .content-block {
        padding: 1rem;
    }

    .admin-grid,
    .stats-grid,
    .courses-grid {
        grid-template-columns: 1fr;
    }

    .stat-card,
    .course-category,
    .core-card {
        padding: 1rem;
    }
}

/* Programs Page Specific Styles */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.feature-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

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

.subject-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.subject-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.subject-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.subject-card h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.35rem;
}

.core-section {
    margin-top: 4rem;
}

.core-section h3 {
    color: var(--primary-green);
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2rem;
}

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

.assessment-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    border: var(--card-border);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.assessment-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.assessment-card h3 {
    color: var(--primary-green);
    margin-bottom: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
}

.assessment-card ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.assessment-card li {
    margin-bottom: 0.8rem;
    padding-left: 2rem;
    position: relative;
}

.assessment-card li::before {
    content: "✓";
    color: var(--accent-green);
    position: absolute;
    left: 0;
    font-weight: 700;
}

.recognition-section {
    margin-top: 3rem;
    padding: 3rem;
    background-color: var(--light-green);
    border-radius: 16px;
    border: 1px solid rgba(26, 71, 42, 0.05);
}

.recognition-section h3 {
    color: var(--primary-green);
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
}

.university-list {
    list-style-type: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    margin: 0;
}

.university-list li {
    padding-left: 2rem;
    position: relative;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.university-list li::before {
    content: "•";
    color: var(--accent-green);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
}

/* Responsive Adjustments for Programs Page */
@media (max-width: 768px) {

    .feature-grid,
    .subject-grid,
    .core-grid,
    .assessment-grid {
        grid-template-columns: 1fr;
    }

    .feature-card,
    .subject-card,
    .assessment-card {
        padding: 1rem;
    }

    .university-list {
        grid-template-columns: 1fr;
    }
}

/* Contact Page Styles */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.contact-card {
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: var(--card-border);
    transition: var(--transition-smooth);
}

.contact-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.contact-card h2 {
    color: var(--primary-green);
    margin-bottom: 2rem;
    font-size: 1.8rem;
    position: relative;
    padding-bottom: 1rem;
}

.contact-card h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent-green);
    border-radius: 2px;
}

.contact-info {
    margin-bottom: 2.5rem;
}

.contact-info:last-child {
    margin-bottom: 0;
}

.contact-info h3 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
    font-size: 1.35rem;
}

.contact-info .position {
    color: var(--accent-green);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.8rem;
}

.contact-info .email a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-block;
    margin-bottom: 0.5rem;
}

.contact-info .email a:hover {
    color: var(--accent-green);
    transform: translateX(5px);
}

.contact-info .phone {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.address p {
    margin-bottom: 0.8rem;
    color: var(--text-color);
    line-height: 1.7;
}

.websites a {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
    display: block;
    margin-bottom: 0.8rem;
}

.websites a:hover {
    text-decoration: underline;
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* Students Page Styles */
.student-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.student-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    border: var(--card-border);
}

.student-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow-green);
    border-color: var(--accent-green);
}

.image-container {
    width: 100%;
    height: 240px;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

.card-content {
    padding: 2rem;
}

.card-content h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.card-content p {
    color: var(--text-color);
    margin: 0;
    line-height: 1.6;
}

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

.development-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: var(--card-border);
    transition: var(--transition-smooth);
}

.development-card:hover {
    border-color: var(--accent-green);
    box-shadow: var(--glow-green);
    transform: translateY(-8px);
}

.development-card h3 {
    color: var(--primary-green);
    margin-bottom: 1.2rem;
    font-size: 1.35rem;
}

.development-card p {
    color: var(--text-muted);
    line-height: 1.7;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    width: 100%;
    height: 280px;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 4px solid var(--white);
    transition: var(--transition-smooth);
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
    border-color: var(--light-green);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

@media (max-width: 768px) {

    .student-grid,
    .development-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }
}

/* Mission List */
.mission-list {
    list-style-type: none;
    padding-left: 0;
    margin: 1.5rem 0;
}

.mission-list li {
    margin-bottom: 0.8rem;
    padding-left: 2rem;
    position: relative;
    font-weight: 500;
    color: var(--text-color);
}

.mission-list li::before {
    content: "•";
    color: var(--accent-green);
    position: absolute;
    left: 0;
    font-size: 1.5rem;
    line-height: 1;
}

/* Content Logo */
.content-logo {
    display: flex;
    justify-content: center;
    margin: 1.5rem 0 0 0;
}

.content-program-logo {
    height: 50px;
    width: auto;
    transition: transform 0.3s ease;
}

.content-program-logo:hover {
    transform: scale(1.05);
}