/* =====================================================
   H-SMA-CE - Decision Support System for Circular Economy
   Elegant Institutional Design - White & Blue Theme
   ===================================================== */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Source+Sans+3:wght@300;400;500;600;700&display=swap');

:root {
    /* Primary Color Palette - Institutional Blue */
    --primary-900: #0a1628;
    --primary-800: #0f2744;
    --primary-700: #163860;
    --primary-600: #1e4a7c;
    --primary-500: #265c98;
    --primary-400: #3a7bc8;
    --primary-300: #6a9fd8;
    --primary-200: #a3c4e8;
    --primary-100: #dce9f5;
    --primary-50: #f0f6fc;
    
    /* Accent - Warm Gold (for Taurasi wine culture) */
    --accent-gold: #c9a227;
    --accent-gold-light: #e8d48a;
    --accent-gold-dark: #a68520;
    
    /* Neutrals */
    --white: #ffffff;
    --gray-50: #fafbfc;
    --gray-100: #f4f6f8;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #adb5bd;
    --gray-500: #6c757d;
    --gray-600: #495057;
    --gray-700: #343a40;
    --gray-800: #212529;
    --gray-900: #0d1117;
    
    /* Typography */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing - Desktop: padding 12px*2 + img 40px + border 1px = 65px */
    --nav-height: 80px;
    --top-bar-height: 65px;
    --section-padding: 120px;
    --container-max: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.04);
    --shadow-md: 0 4px 12px rgba(10, 22, 40, 0.08);
    --shadow-lg: 0 12px 40px rgba(10, 22, 40, 0.12);
    --shadow-xl: 0 24px 60px rgba(10, 22, 40, 0.16);
}

/* =====================================================
   Reset & Base Styles
   ===================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    color: var(--gray-700);
    line-height: 1.7;
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: calc(var(--top-bar-height) + var(--nav-height));
}

::selection {
    background: var(--primary-200);
    color: var(--primary-900);
}

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

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* =====================================================
   Typography
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
    color: var(--primary-800);
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--gray-600);
}

/* =====================================================
   Top Logo Bar
   ===================================================== */
.top-logo-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1001;
    background: #2a65af;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-200);
}

.top-logo-bar-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
}

.top-logo-bar img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.logo-divider {
    width: 1px;
    height: 30px;
    background: white;
}

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

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    border-bottom-color: var(--gray-200);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
}

.logo-main {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-700);
    letter-spacing: -0.5px;
}

.logo-badge {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
    background: var(--primary-600);
    padding: 4px 8px;
    border-radius: 4px;
}

/* Logo Codes Section */
.logo-codes {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.65rem;
    color: var(--gray-500);
    letter-spacing: 0.02em;
    flex-wrap: wrap;
}

.logo-codes .code-item {
    white-space: nowrap;
}

.logo-codes .code-divider {
    color: var(--gray-300);
    font-weight: 300;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-600);
    padding: 10px 18px;
    border-radius: 8px;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
}

.nav-links a:hover {
    color: var(--primary-700);
    background: var(--primary-50);
}

.nav-links a.active {
    color: var(--primary-700);
    background: var(--primary-100);
}

/* Dropdown */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
}

.dropdown-toggle svg {
    width: 12px;
    height: 12px;
    transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-toggle svg {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    min-width: 200px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    border: 1px solid var(--gray-100);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.dropdown-menu a:hover {
    background: var(--primary-50);
    color: var(--primary-700);
}

/* Mobile Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition-fast);
}

.hamburger:hover {
    background: var(--gray-100);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary-700);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Nav Close Button */
.nav-close {
    display: none;
}

/* =====================================================
   Hero Section
   ===================================================== */
.hero {
    min-height: calc(100vh - var(--top-bar-height) - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-600) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    background-size: cover;
    background-position: center;
}

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

.hero-slide::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(10, 22, 40, 0.85) 0%, rgba(30, 74, 124, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    padding: 0 24px;
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent-gold-light);
    margin-bottom: 24px;
    padding: 8px 20px;
    background: rgba(201, 162, 39, 0.15);
    border: 1px solid rgba(201, 162, 39, 0.3);
    border-radius: 50px;
}

.hero h1 {
    color: var(--white);
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 0 2px 40px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    font-style: italic;
    color: var(--primary-200);
    margin-bottom: 16px;
}

.hero-description {
    font-size: 1.1rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.8);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
    text-align: center;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 4;
}

.hero-buttons .btn {
    position: relative;
    z-index: 5;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: var(--white);
    color: var(--primary-700);
    border-color: var(--white);
}

.btn-primary:hover {
    background: var(--primary-50);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.4);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--white);
}

.btn-secondary {
    background: var(--primary-600);
    color: var(--white);
    border-color: var(--primary-600);
}

.btn-secondary:hover {
    background: var(--primary-700);
    border-color: var(--primary-700);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Slide Indicators */
.slide-indicators {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 2;
}

.slide-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.slide-indicator:hover {
    background: rgba(255, 255, 255, 0.5);
}

.slide-indicator.active {
    background: var(--white);
    transform: scale(1.2);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    right: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

.scroll-indicator svg {
    width: 24px;
    height: 24px;
}

/* =====================================================
   Section Styles
   ===================================================== */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-light {
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary-500);
    margin-bottom: 16px;
}

.section-title {
    margin-bottom: 20px;
    position: relative;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-500);
    font-weight: 400;
}

/* Decorative line */
.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-gold));
    margin: 20px auto 0;
    border-radius: 2px;
}

.section-title.text-left::after {
    margin: 20px 0 0;
}

/* =====================================================
   Project Section
   ===================================================== */
.project-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.project-content h3 {
    font-size: 1.75rem;
    margin-bottom: 24px;
    color: var(--primary-700);
}

.project-content p {
    color: var(--gray-600);
    margin-bottom: 20px;
    font-size: 1.05rem;
    text-align: justify;
}

.project-highlight {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    background: var(--primary-50);
    border-radius: 12px;
    margin-top: 24px;
    border-left: 4px solid var(--primary-500);
}

.project-highlight-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-500);
    color: var(--white);
    border-radius: 12px;
    flex-shrink: 0;
}

.project-highlight-content h4 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary-700);
    margin-bottom: 4px;
}

.project-highlight-content p {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin: 0;
}

/* Feature Cards */
.features-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.features-card h3 {
    font-size: 1.5rem;
    margin-bottom: 28px;
    color: var(--primary-700);
    display: flex;
    align-items: center;
    gap: 12px;
}

.features-card h3 svg {
    color: var(--accent-gold);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.feature-item:hover {
    background: var(--primary-50);
    transform: translateX(4px);
}

.feature-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-100);
    color: var(--primary-600);
    border-radius: 8px;
    flex-shrink: 0;
}

.feature-text {
    font-size: 0.95rem;
    color: var(--gray-700);
    font-weight: 500;
}

/* =====================================================
   Partners/Team Section
   ===================================================== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.partner-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
    transform: scaleX(0);
    transition: transform var(--transition-medium);
}

.partner-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.partner-card:hover::before {
    transform: scaleX(1);
}

.partner-card.lead::before {
    transform: scaleX(1);
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-gold-light));
}

.partner-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 20px;
}

.partner-card.lead .partner-badge {
    background: var(--accent-gold);
    color: var(--white);
}

.partner-card:not(.lead) .partner-badge {
    background: var(--primary-100);
    color: var(--primary-700);
}

.partner-logo {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    box-shadow: var(--shadow-sm);
}

.partner-logo-img {
    max-height: 70px;
    width: auto;
    object-fit: contain;
}

.partner-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--primary-800);
}

.partner-card > p {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.partner-role {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-600);
}

.partner-cup {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--gray-500);
    margin: 8px 0;
}

.partner-cup strong {
    font-weight: 600;
    color: var(--gray-600);
}

/* Team Members Grid */
.team-members-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.team-member-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 20px 16px;
    background: var(--gray-50);
    border-radius: 12px;
    transition: all var(--transition-fast);
}

.team-member-card:hover {
    background: var(--primary-50);
    transform: translateY(-4px);
}

a.team-member-card {
    text-decoration: none;
    color: inherit;
}

a.team-member-card:hover {
    box-shadow: var(--shadow-md);
}

.team-member-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--white);
    box-shadow: var(--shadow-md);
    margin-bottom: 12px;
    background: var(--gray-200);
}

.team-member-info {
    width: 100%;
}

.team-member-info strong {
    display: block;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-800);
    margin-bottom: 6px;
}

.team-member-role {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--white);
    background: var(--primary-500);
    padding: 4px 10px;
    border-radius: 50px;
    margin-bottom: 10px;
}

.team-member-info p {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--gray-600);
    line-height: 1.5;
    margin: 0;
}

/* Team Separator */
.team-separator {
    width: 100%;
    margin: 20px 0 15px;
    padding-top: 15px;
    border-top: 1px dashed var(--gray-300);
    text-align: center;
}

.team-separator-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500);
    background: var(--white);
    padding: 0 12px;
}

/* =====================================================
   Stats Section
   ===================================================== */
.stats-section {
    background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-500) 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.stats-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='40' height='40' viewBox='0 0 40 40' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M20 20c0-11.046-8.954-20-20-20v20h20z'/%3E%3C/g%3E%3C/svg%3E");
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    color: var(--white);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--white), var(--primary-200));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =====================================================
   Taurasi Case Study Section
   ===================================================== */
.taurasi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.taurasi-slideshow {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    aspect-ratio: 4/3;
    box-shadow: var(--shadow-xl);
}

.taurasi-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

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

.taurasi-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.taurasi-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.taurasi-indicator:hover {
    background: rgba(255, 255, 255, 0.8);
}

.taurasi-indicator.active {
    background: var(--white);
    transform: scale(1.3);
}

.taurasi-content h3 {
    font-size: 1.75rem;
    color: var(--primary-700);
    margin-bottom: 20px;
}

.taurasi-content p {
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.8;
    text-align: justify;
}

.taurasi-stats {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
    padding-top: 30px;
    border-top: 1px solid var(--gray-200);
}

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

.taurasi-stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-600);
}

.taurasi-stat-label {
    font-size: 0.85rem;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* =====================================================
   Advisory Board Section
   ===================================================== */
.advisory-container {
    max-width: 900px;
    margin: 0 auto;
}

.advisory-card {
    display: flex;
    gap: 40px;
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    align-items: flex-start;
}

.advisory-image {
    flex-shrink: 0;
}

.advisory-image img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-100);
    box-shadow: var(--shadow-md);
    background: var(--gray-200);
}

.advisory-content {
    flex: 1;
}

.advisory-content h3 {
    font-size: 1.5rem;
    color: var(--primary-800);
    margin-bottom: 8px;
}

.advisory-affiliation {
    display: block;
    font-size: 1rem;
    color: var(--primary-500);
    font-weight: 500;
    margin-bottom: 8px;
}

.advisory-role {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
    background: var(--accent-gold);
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 20px;
}

.advisory-bio {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 12px;
    text-align: justify;
}

.advisory-bio:last-child {
    margin-bottom: 0;
}

/* =====================================================
   Contacts Grid
   ===================================================== */
.contacts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 48px;
}

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

/* =====================================================
   Cards Grid (Publications, Conferences, Events)
   ===================================================== */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

.card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-100);
    transition: all var(--transition-medium);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    height: 200px;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

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

.card-image-placeholder {
    font-size: 3rem;
    opacity: 1;
}

.card-image-placeholder img {
    width: auto;
    height: 100%;
    object-fit: cover;
}

.card-date {
    position: absolute;
    bottom: 16px;
    left: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--white);
    padding: 6px 12px;
    background: rgba(33, 37, 41, 0.85);
    backdrop-filter: blur(10px);
    border-radius: 50px;
}

.card-body {
    padding: 28px;
}

.card-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-600);
    background: var(--primary-50);
    padding: 6px 12px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.card-tag.gold {
    background: rgba(201, 162, 39, 0.15);
    color: var(--accent-gold-dark);
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--primary-800);
    line-height: 1.4;
}

.card-title a:hover {
    color: var(--primary-500);
}

.card-text {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-align: justify;
}

.card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
    font-size: 0.85rem;
    color: var(--gray-500);
}

.card-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-600);
    transition: all var(--transition-fast);
}

.card-link:hover {
    color: var(--primary-500);
    gap: 12px;
}

/* Publication Card Specific */
.publication-card .card-body {
    padding: 32px;
}

.publication-authors {
    font-size: 0.9rem;
    color: var(--gray-600);
    margin-bottom: 12px;
    font-style: italic;
}

.publication-venue {
    font-size: 0.85rem;
    color: var(--primary-600);
    font-weight: 600;
    margin-bottom: 16px;
}

.publication-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.publication-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 50px;
    transition: all var(--transition-fast);
}

.publication-link.doi {
    background: var(--primary-50);
    color: var(--primary-600);
}

.publication-link.doi:hover {
    background: var(--primary-100);
}

.publication-link.pdf {
    background: var(--gray-100);
    color: var(--gray-700);
}

.publication-link.pdf:hover {
    background: var(--gray-200);
}

/* Clickable Cards */
.clickable-card {
    cursor: pointer;
    position: relative;
}

.clickable-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid transparent;
    border-radius: 16px;
    transition: border-color var(--transition-fast);
    pointer-events: none;
}

.clickable-card:hover::after {
    border-color: var(--primary-300);
}

.clickable-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-click-hint {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--gray-100);
    font-size: 0.8rem;
    color: var(--primary-500);
    font-weight: 500;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.clickable-card:hover .card-click-hint {
    opacity: 1;
}

/* =====================================================
   Detail Modals
   ===================================================== */
.detail-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(10px);
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
    overflow-y: auto;
}

.detail-modal.active {
    display: flex;
}

.detail-modal-content {
    background: var(--white);
    border-radius: 20px;
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.detail-modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: all var(--transition-fast);
    z-index: 10;
}

.detail-modal-close:hover {
    background: var(--primary-100);
    color: var(--primary-700);
}

.detail-modal-header {
    padding: 40px 40px 20px;
    border-bottom: 1px solid var(--gray-100);
}

.detail-modal-header .card-tag {
    margin-bottom: 16px;
}

.detail-modal-header h2 {
    font-size: 1.5rem;
    color: var(--primary-800);
    margin-bottom: 12px;
    padding-right: 40px;
}

.detail-modal-header .publication-authors {
    font-size: 0.95rem;
    color: var(--gray-600);
    font-style: italic;
    margin-bottom: 8px;
}

.detail-modal-header .publication-venue {
    font-size: 0.9rem;
    color: var(--primary-600);
}

.detail-modal-body {
    padding: 30px 40px 40px;
}

.detail-modal-body h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-600);
    margin-bottom: 16px;
    margin-top: 24px;
}

.detail-modal-body h4:first-child {
    margin-top: 0;
}

.detail-modal-body p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 16px;
    text-align: justify;
}

.detail-modal-body .publication-links {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-100);
}

/* Conference Modal */
.conference-modal {
    max-width: 1100px;
}

.conference-modal-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
}

.conference-modal-info {
    border-right: 1px solid var(--gray-100);
}

.conference-modal-info .detail-modal-header,
.conference-modal-info .detail-modal-body {
    padding-right: 30px;
}

.conference-subtitle {
    font-size: 1rem;
    color: var(--gray-600);
    font-style: italic;
    margin-bottom: 16px;
}

.conference-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 16px;
}

.conference-meta span {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-600);
}

.conference-meta svg {
    color: var(--primary-500);
}

.conference-modal-gallery {
    padding: 40px 30px;
    background: var(--gray-50);
    border-radius: 0 20px 20px 0;
}

.conference-modal-gallery h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-600);
    margin-bottom: 20px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.gallery-item {
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    background: var(--gray-200);
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--gray-400);
    background: var(--gray-200);
}

.gallery-note {
    font-size: 0.8rem;
    color: var(--gray-500);
    text-align: center;
    margin-top: 16px;
    font-style: italic;
}

/* =====================================================
   Lightbox
   ===================================================== */
.lightbox {
    position: fixed;
    inset: 0;
    z-index: 20000;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.active {
    opacity: 1;
    visibility: visible;
}

#lightbox-img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.lightbox.active #lightbox-img {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 40px;
    color: white;
    cursor: pointer;
    transition: color 0.2s ease;
    z-index: 20001;
}

.lightbox-close:hover {
    color: var(--gray-300);
}

/* =====================================================
   Page Header
   ===================================================== */
.page-header {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, var(--primary-800) 0%, var(--primary-600) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.page-header .container {
    position: relative;
    z-index: 1;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 16px;
}

.page-header p {
    color: var(--primary-200);
    font-size: 1.15rem;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--primary-300);
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb span {
    color: var(--primary-400);
}

/* =====================================================
   Special Issue Papers
   ===================================================== */
.si-papers-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 16px;
}

.si-paper {
    padding: 16px;
    background: var(--gray-50);
    border-radius: 12px;
    border-left: 3px solid var(--primary-500);
}

.si-paper strong {
    display: block;
    font-size: 0.95rem;
    color: var(--primary-800);
    margin-bottom: 8px;
    line-height: 1.4;
}

.si-paper-authors {
    font-size: 0.85rem;
    color: var(--gray-600);
    font-style: italic;
    margin-bottom: 4px !important;
}

.si-paper-meta {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-bottom: 12px !important;
}

.si-paper .publication-link {
    font-size: 0.75rem;
    padding: 6px 12px;
}

/* =====================================================
   Privacy Policy Page
   ===================================================== */
.privacy-content {
    max-width: 800px;
    margin: 0 auto;
}

.privacy-intro {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--primary-100);
}

.privacy-intro .lead {
    font-size: 1.15rem;
    color: var(--primary-700);
    font-weight: 500;
    margin-bottom: 16px;
}

.privacy-section {
    margin-bottom: 40px;
}

.privacy-section h2 {
    font-size: 1.5rem;
    color: var(--primary-700);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--gray-200);
}

.privacy-section h3 {
    font-size: 1.1rem;
    color: var(--primary-600);
    margin-top: 24px;
    margin-bottom: 12px;
}

.privacy-section p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 12px;
    text-align: justify;
}

.privacy-section ul {
    margin: 16px 0;
    padding-left: 24px;
}

.privacy-section li {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 8px;
    list-style-type: disc;
}

.privacy-section a {
    color: var(--primary-500);
    text-decoration: underline;
}

.privacy-section a:hover {
    color: var(--primary-700);
}

.privacy-date {
    margin-top: 24px;
    padding: 16px;
    background: var(--gray-50);
    border-radius: 8px;
    text-align: center;
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo-text {
    color: var(--white);
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.footer-title {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--white);
    margin-bottom: 24px;
}

.footer-links a {
    display: block;
    font-size: 0.95rem;
    color: var(--gray-400);
    padding: 8px 0;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: 8px;
}

.footer-funding {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    margin-top: 24px;
}

.footer-funding img {
    height: 40px;
}

.footer-funding-text {
    font-size: 0.8rem;
    line-height: 1.5;
}

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-legal a {
    margin-left: 24px;
}

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

/* =====================================================
   Utility Classes
   ===================================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.mt-0 { margin-top: 0; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }

.bio-text p {
    text-align: center;
}

/* =====================================================
   Animations
   ===================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

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

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */

/* Desktop - Above 768px - Navbar without hamburger */
@media (min-width: 769px) {
    .logo {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        justify-content: center;
    }

    .logo-codes {
        display: flex;
        flex-wrap: wrap;
        align-items: flex-start;
        justify-content: flex-start;
        text-align: left;
        font-size: 0.55rem;
        gap: 0;
        line-height: 1.4;
    }

    /* First row: Project code takes full width */
    .logo-codes .code-item:first-child {
        width: 100%;
        display: block;
        margin-bottom: 1px;
    }

    /* Hide the first divider (after Project code) */
    .logo-codes .code-divider:first-of-type {
        display: none;
    }

    /* Second row: CUP codes as flex items */
    .logo-codes .code-item:nth-child(3),
    .logo-codes .code-item:nth-child(5) {
        flex-shrink: 0;
    }

    /* Show the divider between CUPs */
    .logo-codes .code-divider:last-of-type {
        margin: 0 4px;
        flex-shrink: 0;
    }

    .logo-text {
        font-size: 1.3rem;
    }

    .logo-badge {
        font-size: 0.55rem;
        padding: 3px 6px;
    }

    .nav-links {
        gap: 4px;
    }

    .nav-links a {
        font-size: 0.82rem;
        padding: 8px 12px;
    }
}

/* Large Desktop - Above 1300px - More comfortable spacing */
@media (min-width: 1301px) {
    .logo-codes {
        font-size: 0.6rem;
        gap: 2px;
    }

    .logo-text {
        font-size: 1.4rem;
    }

    .logo-badge {
        font-size: 0.6rem;
    }

    .nav-links {
        gap: 6px;
    }

    .nav-links a {
        font-size: 0.88rem;
        padding: 10px 16px;
    }
}

/* Extra Large Desktop - Above 1500px - Even more spacing */
@media (min-width: 1500px) {
    .logo-codes {
        font-size: 0.65rem;
    }

    .logo-text {
        font-size: 1.5rem;
    }

    .logo-badge {
        font-size: 0.65rem;
        padding: 4px 8px;
    }

    .nav-links {
        gap: 8px;
    }

    .nav-links a {
        font-size: 0.9rem;
        padding: 10px 18px;
    }
}

/* Tablet - 768px to 1300px - Layout adjustments only, NO hamburger */
@media (max-width: 1300px) and (min-width: 769px) {
    :root {
        --section-padding: 80px;
        /* Top bar: padding 10px*2 + img 36px + border 1px = 57px */
        --top-bar-height: 57px;
        --nav-height: 70px;
    }

    .logo-codes {
        font-size: 0.5rem;
        gap: 1px;
    }

    .logo-text {
        font-size: 1.2rem;
    }

    .logo-badge {
        font-size: 0.5rem;
        padding: 2px 5px;
    }

    .top-logo-bar {
        padding: 10px 0;
    }

    .top-logo-bar img {
        height: 36px;
    }

    .nav-links {
        gap: 2px;
    }

    .nav-links a {
        font-size: 0.75rem;
        padding: 6px 10px;
    }

    .project-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .taurasi-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .taurasi-slideshow {
        aspect-ratio: 16/9;
    }

    .advisory-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .advisory-content h3,
    .advisory-bio {
        text-align: center;
    }

    .conference-modal-grid {
        grid-template-columns: 1fr;
    }

    .conference-modal-info {
        border-right: none;
        border-bottom: 1px solid var(--gray-100);
    }
    
    .conference-modal-gallery {
        border-radius: 0 0 20px 20px;
    }
}

/* Mobile - 768px and below - Show hamburger menu */
@media (max-width: 768px) {
    :root {
        --section-padding: 65px;
        /* Top bar: padding 8px*2 + img 32px + border 1px = 49px */
        --top-bar-height: 49px;
        --nav-height: 64px;
    }

    .logo-codes {
        font-size: 0.45rem;
        gap: 3px;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .logo-codes .code-divider {
        display: inline;
    }

    .logo-codes .code-item:nth-child(3)::after {
        content: none;
    }

    .logo-text {
        font-size: 1rem;
    }

    .logo-badge {
        font-size: 0.45rem;
        padding: 2px 4px;
    }

    .logo-main {
        gap: 6px;
    }

    .top-logo-bar {
        padding: 8px 0;
    }

    .top-logo-bar-container {
        gap: 10px;
        padding: 0 16px;
    }

    .top-logo-bar img {
        height: 32px;
        max-width: 70px;
    }

    .logo-divider {
        height: 24px;
    }

    /* Hamburger menu - visible only below 768px */
    .hamburger {
        display: flex;
        z-index: 1002;
        position: relative;
    }

    /* Mobile menu overlay */
    .nav-links {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        height: 100dvh !important;
        background: #ffffff !important;
        flex-direction: column !important;
        justify-content: flex-start !important;
        align-items: stretch !important;
        padding: 80px 24px 40px 24px !important;
        gap: 6px !important;
        transform: translateX(100%) !important;
        opacity: 0 !important;
        visibility: hidden !important;
        transition: transform 0.35s ease, opacity 0.25s ease, visibility 0.25s ease !important;
        z-index: 999998 !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        pointer-events: none !important;
    }

    .nav-links.active {
        transform: translateX(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
        pointer-events: auto !important;
    }

    .nav-links li {
        width: 100%;
        margin-bottom: 4px;
    }

    .nav-links > li > a,
    .nav-links > li > .dropdown-toggle {
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
        width: 100% !important;
        padding: 16px 20px !important;
        font-size: 1.05rem !important;
        font-weight: 600 !important;
        color: #212529 !important;
        background: #f4f6f8 !important;
        border-radius: 12px !important;
    }

    .nav-links > li > a:hover,
    .nav-links > li > a:active,
    .nav-links > li > a.active,
    .nav-links > li > .dropdown-toggle:hover {
        background: #dce9f5 !important;
        color: #163860 !important;
    }

    .dropdown-menu {
        position: static !important;
        transform: none !important;
        box-shadow: none !important;
        border: none !important;
        background: transparent !important;
        margin-top: 6px !important;
        padding: 0 0 0 16px !important;
        opacity: 1 !important;
        visibility: visible !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 4px !important;
    }

    .dropdown-menu a {
        display: block !important;
        width: 100% !important;
        padding: 14px 18px !important;
        font-size: 0.95rem !important;
        font-weight: 500 !important;
        color: #495057 !important;
        background: #e9ecef !important;
        border-radius: 10px !important;
    }

    .dropdown-menu a:hover {
        background: #dce9f5 !important;
        color: #163860 !important;
    }

    .dropdown-toggle svg {
        opacity: 0.5;
    }

    .dropdown:hover .dropdown-menu {
        transform: none;
    }

    /* Nav close button - FIXED position */
    .nav-close {
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        position: fixed !important;
        top: 20px !important;
        right: 20px !important;
        width: 48px !important;
        height: 48px !important;
        border: none !important;
        background: #e9ecef !important;
        border-radius: 50% !important;
        font-size: 28px !important;
        font-weight: 300 !important;
        line-height: 1 !important;
        cursor: pointer !important;
        color: #343a40 !important;
        z-index: 999999 !important;
        box-shadow: 0 2px 12px rgba(0,0,0,0.15) !important;
        transition: background 0.2s ease, transform 0.2s ease !important;
        opacity: 0;
        pointer-events: none;
    }

    .nav-close:hover,
    .nav-close:active {
        background: #dce9f5 !important;
        color: #163860 !important;
        transform: scale(1.05) !important;
    }

    body.menu-open .nav-close {
        opacity: 1 !important;
        pointer-events: auto !important;
    }

    /* Body lock when menu open */
    body.menu-open {
        overflow: hidden !important;
        position: fixed !important;
        width: 100% !important;
        height: 100% !important;
        touch-action: none !important;
    }

    body.menu-open .top-logo-bar {
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    body.menu-open .navbar {
        background: transparent !important;
        box-shadow: none !important;
        border: none !important;
        pointer-events: none !important;
    }

    body.menu-open .hamburger {
        pointer-events: auto !important;
    }

    body.menu-open .tour-avatar-container,
    body.menu-open .lightbox,
    body.menu-open .detail-modal {
        opacity: 0 !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    .project-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .taurasi-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .taurasi-slideshow {
        aspect-ratio: 16/9;
    }

    .advisory-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .advisory-content h3,
    .advisory-bio {
        text-align: center;
    }

    .conference-modal-grid {
        grid-template-columns: 1fr;
    }

    .conference-modal-info {
        border-right: none;
        border-bottom: 1px solid var(--gray-100);
    }

    .conference-modal-gallery {
        border-radius: 0 0 20px 20px;
    }

    .hero {
        min-height: calc(100svh - var(--top-bar-height) - var(--nav-height));
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-content {
        padding-bottom: 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        margin-bottom: 60px;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    .slide-indicators {
        bottom: 20px;
        gap: 8px;
    }
    
    .slide-indicator {
        width: 8px;
        height: 8px;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .partners-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .footer-legal a {
        margin: 0 12px;
    }
    
    .taurasi-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
    
    .taurasi-stat {
        min-width: 100px;
    }
    
    .team-members-grid {
        grid-template-columns: 1fr;
    }
    
    .team-member-card {
        flex-direction: row;
        text-align: left;
        gap: 16px;
    }
    
    .team-member-photo {
        margin-bottom: 0;
        width: 70px;
        height: 70px;
        flex-shrink: 0;
    }
    
    .team-member-info strong {
        font-size: 0.9rem;
    }
    
    .team-member-info p {
        font-size: 0.8rem;
    }
    
    .advisory-image img {
        width: 140px;
        height: 140px;
    }
    
    .advisory-card {
        padding: 28px;
    }
    
    .detail-modal {
        padding: 20px 12px;
    }
    
    .detail-modal-content {
        border-radius: 16px;
    }
    
    .detail-modal-header {
        padding: 30px 24px 16px;
    }
    
    .detail-modal-header h2 {
        font-size: 1.25rem;
    }
    
    .detail-modal-body {
        padding: 20px 24px 30px;
    }
    
    .detail-modal-close {
        top: 12px;
        right: 12px;
        width: 36px;
        height: 36px;
        font-size: 20px;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    
    .conference-modal-gallery {
        padding: 24px 20px;
    }
    
    .tour-avatar-container {
        bottom: 12px !important;
        right: 12px !important;
    }
}

/* Small Mobile - 480px */
@media (max-width: 480px) {
    :root {
        /* Top bar: padding 6px*2 + img 28px + border 1px = 41px */
        --top-bar-height: 41px;
        --nav-height: 60px;
    }

    .logo-codes {
        font-size: 0.4rem;
        gap: 2px;
    }

    .logo-text {
        font-size: 0.9rem;
    }

    .logo-badge {
        font-size: 0.4rem;
        padding: 2px 3px;
    }

    .logo-main {
        gap: 5px;
    }

    .top-logo-bar {
        padding: 6px 0;
    }
    
    .top-logo-bar-container {
        gap: 6px;
        padding: 0 10px;
    }
    
    .top-logo-bar img {
        height: 28px;
        max-width: 55px;
    }
    
    .logo-divider {
        height: 20px;
    }
    
    .nav-links {
        padding: 70px 16px 40px 16px !important;
    }
    
    .nav-close {
        top: 16px !important;
        right: 16px !important;
        width: 44px !important;
        height: 44px !important;
        font-size: 26px !important;
    }
    
    .nav-links > li > a,
    .nav-links > li > .dropdown-toggle {
        padding: 14px 16px !important;
        font-size: 1rem !important;
    }
    
    .dropdown-menu a {
        padding: 12px 14px !important;
        font-size: 0.9rem !important;
    }
    
    .slide-indicators {
        bottom: 15px;
    }
    
    .slide-indicator {
        width: 6px;
        height: 6px;
    }
    
    .hero-buttons {
        margin-bottom: 50px;
    }
    
    .partner-card {
        padding: 24px 16px;
    }
    
    .team-member-photo {
        width: 60px;
        height: 60px;
    }
    
    .team-member-info strong {
        font-size: 0.85rem;
    }
    
    .team-member-info p {
        font-size: 0.75rem;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .logo-badge {
        font-size: 0.55rem;
        padding: 3px 6px;
    }
}

/* Very Small Mobile - 380px */
@media (max-width: 380px) {
    :root {
        /* Top bar: padding 6px*2 + img 24px + border 1px = 37px */
        --top-bar-height: 37px;
    }
    
    .top-logo-bar img {
        height: 24px;
        max-width: 45px;
    }
    
    .team-member-photo {
        width: 50px;
        height: 50px;
    }
}