/* ===========================
   Global Styles & Variables
   =========================== */

:root {
    --primary-color: #5D866C;
    --primary-dark: #4a6d57;
    --secondary-color: #C2A68C;
    --accent-color: #E6D8C3;
    --text-dark: #2c3e3f;
    --text-light: #5a6b6d;
    --bg-light: #F5F5F0;
    --bg-white: #ffffff;
    --border-color: #E6D8C3;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

/* ===========================
   Typography
   =========================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.7;
    color: var(--text-light);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    font-weight: 500;
    color: var(--primary-color);
    transition: var(--transition);
}

.link-arrow:hover {
    transform: translateX(5px);
}

/* ===========================
   Layout
   =========================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 5rem 0;
}

.bg-light {
    background-color: var(--bg-light);
}

/* ===========================
   Navigation
   =========================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    transition: var(--transition);
}

.nav-logo:hover {
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.nav-link.active {
    color: var(--primary-color);
}

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

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    min-height: 70vh; /* Reduced from 100vh to 70vh */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem 3rem; /* Reduced padding */
    position: relative;
    overflow: hidden;
}

/* Hero Slideshow */
.hero-slideshow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

/* Hero Overlay */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3); /* Dark subtle overlay for text readability */
    z-index: 1;
}

/* Slideshow Controls */
.slideshow-controls {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 3;
}

.slide-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.slide-btn:hover {
    background: rgba(255, 255, 255, 0.4);
    border-color: white;
    transform: scale(1.1);
}

/* Slideshow Indicators */
.slideshow-indicators {
    position: absolute;
    bottom: 6rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 1rem;
    z-index: 3;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    border: 2px solid white;
    cursor: pointer;
    transition: var(--transition);
}

.indicator:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.indicator.active {
    background: white;
    width: 40px;
    border-radius: 6px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%23ffffff" fill-opacity="0.05"><path d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/></g></g></svg>');
    opacity: 0.1;
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 900px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    position: relative;
    z-index: 3;
    color: white;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    font-weight: 300;
    position: relative;
    z-index: 3;
    color: white;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 3;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: white;
    opacity: 0.8;
    animation: bounce 2s infinite;
    z-index: 3;
}

.scroll-indicator {
    width: 2px;
    height: 30px;
    background: white;
    opacity: 0.6;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* ===========================
   Buttons
   =========================== */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

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

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* ===========================
   Page Header
   =========================== */

.page-header {
    padding: 10rem 0 5rem;
    background: linear-gradient(135deg, #5D866C 0%, #4a6d57 100%);
    color: white;
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.page-subtitle {
    font-size: 1.5rem;
    opacity: 0.9;
    font-weight: 300;
}

/* ===========================
   Section Headers
   =========================== */

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

.section-title {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    font-weight: 400;
}

/* ===========================
   Cards & Grids
   =========================== */

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

.highlight-card,
.value-card,
.research-area-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.highlight-card:hover,
.value-card:hover,
.research-area-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.highlight-icon,
.value-icon,
.research-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.highlight-icon svg,
.value-icon svg,
.research-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.highlight-card h3,
.value-card h3,
.research-area-card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.highlight-card p,
.value-card p,
.research-area-card p {
    color: var(--text-light);
}

/* ===========================
   Stats Section
   =========================== */

.stats-section {
    background: linear-gradient(135deg, #5D866C 0%, #4a6d57 100%);
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

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

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.125rem;
    opacity: 0.9;
}

/* ===========================
   Welcome Section
   =========================== */

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

.welcome-text p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.image-placeholder {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.image-placeholder svg {
    width: 120px;
    height: 120px;
    color: var(--primary-color);
}

.image-placeholder.large {
    min-height: 400px;
}

.image-placeholder.large svg {
    width: 200px;
    height: 200px;
}

/* ===========================
   Content Grid
   =========================== */

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

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

.content-text h2 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.content-text p {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

/* ===========================
   Timeline
   =========================== */

.timeline {
    position: relative;
    padding: 2rem 0;
}

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

.timeline-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 2;
}

.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 1;
    text-align: right;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border: 4px solid white;
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: var(--shadow-md);
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.timeline-content h3 {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.timeline-content h4 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.timeline-content p {
    color: var(--text-light);
}

/* ===========================
   Research Areas & Projects
   =========================== */

.research-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 4rem;
}

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

.research-highlights {
    list-style: none;
    margin-top: 1.5rem;
}

.research-highlights li {
    padding: 0.5rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1.5rem;
}

.research-highlights li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.project-image {
    height: 200px;
    background: var(--bg-light);
}

.project-content {
    padding: 2rem;
}

.project-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.project-tag.completed {
    background: #10b981;
}

.project-content h3 {
    margin-bottom: 1rem;
}

.project-meta {
    display: flex;
    gap: 1.5rem;
    margin-top: 1.5rem;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* ===========================
   Collaboration Cards
   =========================== */

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

.collaboration-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    text-align: center;
}

.collaboration-card h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

/* ===========================
   Team Section
   =========================== */

.pi-profile {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.pi-image {
    width: 100%;
}

.pi-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    object-fit: cover;
    aspect-ratio: 1;
    box-shadow: var(--shadow-md);
}

.pi-info h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.pi-title {
    color: var(--primary-color);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

.pi-education,
.pi-bio {
    margin-bottom: 2rem;
}

.pi-education h4,
.pi-bio h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.pi-education ul {
    list-style: none;
}

.pi-education li {
    padding: 0.5rem 0;
    color: var(--text-light);
}

.pi-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-link {
    padding: 0.5rem 1.5rem;
    background: var(--bg-light);
    border-radius: 6px;
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
}

.team-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

.team-image {
    height: 250px;
    background: var(--bg-light);
}

.team-info {
    padding: 1.5rem;
}

.team-info h3 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.team-role {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.team-bio {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.team-links {
    display: flex;
    gap: 1rem;
}

.team-links a {
    font-size: 1.25rem;
    transition: var(--transition);
}

.team-links a:hover {
    transform: scale(1.2);
}

/* ===========================
   Alumni Section
   =========================== */

.alumni-list {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow-md);
}

.alumni-item {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

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

.alumni-item h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.alumni-item p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* ===========================
   Publications
   =========================== */

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

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-dark);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.publications-year {
    margin-bottom: 4rem;
}

.year-title {
    color: var(--text-dark);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 3px solid var(--primary-color);
}

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

.publication-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
    transition: var(--transition);
}

.publication-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(5px);
}

.publication-title {
    color: var(--text-dark);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.publication-authors {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.publication-venue {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.publication-abstract {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.publication-links {
    display: flex;
    gap: 1rem;
}

.pub-link {
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border-radius: 6px;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
    transition: var(--transition);
}

.pub-link:hover {
    background: var(--primary-color);
    color: white;
}

.publication-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.publication-badge.conference {
    background: #8b5cf6;
}

.publication-badge.review {
    background: #10b981;
}

.publication-badge.featured {
    background: linear-gradient(135deg, #C2A68C, #5D866C);
}

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

.stat-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.stat-item .stat-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-item .stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

/* ===========================
   Contact Section
   =========================== */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.contact-details {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.contact-text h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.contact-text p {
    color: var(--text-light);
    font-size: 0.95rem;
}

.contact-text a {
    color: var(--primary-color);
}

.contact-form-wrapper {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    color: var(--text-dark);
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--text-dark);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 1rem;
}

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

.opportunity-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.opportunity-card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.opportunity-card ul {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
}

.opportunity-card li {
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.map-section {
    padding: 3rem 0;
}

.map-placeholder {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 4rem;
    text-align: center;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.map-icon svg {
    width: 80px;
    height: 80px;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.map-note {
    font-size: 0.875rem;
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* ===========================
   CTA Section
   =========================== */

.cta-section {
    background: linear-gradient(135deg, #5D866C 0%, #4a6d57 100%);
    color: white;
    text-align: center;
}

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

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: white;
    opacity: 0.9;
}

/* ===========================
   Footer
   =========================== */

.footer {
    background: var(--text-dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 5px;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
}

/* ===========================
   Animations
   =========================== */

.fade-in {
    animation: fadeIn 0.8s ease-in;
}

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: 2rem 0;
    }

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

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

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .slideshow-controls {
        padding: 0 1rem;
    }

    .slide-btn {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .slideshow-indicators {
        bottom: 5rem;
    }

    .welcome-content,
    .content-grid,
    .contact-grid,
    .pi-profile {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        grid-template-columns: 1fr;
    }

    .timeline-item:nth-child(odd) .timeline-content {
        text-align: left;
    }

    .timeline-marker {
        left: 0;
        transform: translateX(-50%);
    }

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

    .section {
        padding: 3rem 0;
    }

    .highlights-grid,
    .values-grid,
    .research-areas,
    .projects-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 1rem;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

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

    .slide-btn {
        width: 35px;
        height: 35px;
        font-size: 1.25rem;
    }

    .slideshow-indicators {
        gap: 0.5rem;
    }

    .indicator {
        width: 10px;
        height: 10px;
    }

    .indicator.active {
        width: 30px;
    }

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