/* Design System - Modern Dark & Premium Glassmorphism */

:root {
    /* Color Palette */
    --bg-base: #090d16;
    --bg-surface: rgba(17, 25, 40, 0.75);
    --bg-surface-hover: rgba(23, 33, 53, 0.85);
    --bg-card: rgba(22, 30, 49, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(6, 182, 212, 0.4);
    
    --accent: #06b6d4;          /* Cyber Cyan */
    --accent-glow: rgba(6, 182, 212, 0.15);
    --accent-secondary: #3b82f6; /* Electric Blue */
    --accent-warning: #f59e0b;   /* Safety Amber */
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    /* Fonts */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-heading: 'Outfit', var(--font-sans);
    
    /* Shadows & Transitions */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(6, 182, 212, 0.2);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

section {
    padding: 96px 0;
}

.grid {
    display: grid;
    gap: 32px;
}

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

.grid-3-col {
    grid-template-columns: repeat(3, 1fr);
}

.align-center {
    align-items: center;
}

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

.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

/* Custom Badge */
.badge {
    display: inline-block;
    padding: 6px 16px;
    background-color: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    color: var(--accent);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 9999px;
    margin-bottom: 16px;
}

.badge-accent {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
    color: var(--accent-secondary);
}

/* Titles */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-primary);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title-small {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 800px;
    margin-bottom: 40px;
}

.section-header {
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 32px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.glass-card:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow), var(--shadow-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    color: #000000;
    font-weight: 700;
    border: none;
    box-shadow: 0 4px 14px rgba(6, 182, 212, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.6);
    filter: brightness(1.1);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    margin-left: 16px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

/* Main Header Navigation */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(9, 13, 22, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background var(--transition-fast);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

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

.logo-icon {
    color: var(--accent);
    display: flex;
    align-items: center;
    filter: drop-shadow(0 0 4px rgba(6, 182, 212, 0.4));
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--text-secondary);
    font-weight: 400;
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
    padding: 8px 0;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Mobile Toggle Hamburger */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
    width: 30px;
    height: 24px;
    justify-content: center;
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* Open states for toggle */
.menu-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(9, 13, 22, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    transform: translateY(-100%);
    transition: transform var(--transition-smooth);
    border-bottom: 1px solid var(--border-color);
}

.mobile-drawer.open {
    transform: translateY(0);
}

.mobile-nav {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
    height: 100%;
}

.mobile-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    transition: color var(--transition-fast);
}

.mobile-link:hover {
    color: var(--accent);
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 90vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    padding-top: 120px;
    background-image: radial-gradient(circle at 80% 20%, rgba(6, 182, 212, 0.15) 0%, transparent 50%),
                      radial-gradient(circle at 10% 80%, rgba(59, 130, 246, 0.12) 0%, transparent 50%);
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(9, 13, 22, 0) 60%, var(--bg-base) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.2);
    color: var(--accent);
    font-size: 0.85rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 9999px;
    margin-bottom: 24px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 10%, #e2e8f0 50%, #94a3b8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    line-height: 1.5;
}

/* Intro Quote Block */
.intro-block {
    margin-top: -80px;
    position: relative;
    z-index: 10;
}

.intro-content {
    display: flex;
    gap: 32px;
    align-items: flex-start;
}

.intro-quote-icon {
    color: var(--accent);
    opacity: 0.6;
    flex-shrink: 0;
    margin-top: -8px;
    filter: drop-shadow(0 0 10px rgba(6, 182, 212, 0.2));
}

.lead-text {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 16px;
}

/* Status & Progress Section */
.status-section {
    background-image: radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 40%);
}

.tech-steps {
    display: grid;
    gap: 20px;
    margin-top: 32px;
}

.tech-step-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.step-num {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    color: var(--accent);
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    flex-shrink: 0;
}

.tech-step-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.tech-step-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Status Visual - Radial Progress & Stats */
.status-visual-block {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.progress-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.radial-progress-container {
    position: relative;
    width: 180px;
    height: 180px;
    margin-bottom: 24px;
}

.radial-progress {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.radial-progress circle {
    fill: none;
    stroke-width: 8;
}

.radial-progress circle.bg {
    stroke: rgba(255, 255, 255, 0.05);
}

.radial-progress circle.progress {
    stroke: url(#cyan-blue-grad);
    stroke-linecap: round;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* To map SVG gradient in CSS, we can inject a defs block in JS or use SVG inline code in HTML. Let's design styling using simple stroke */
.radial-progress circle.progress {
    stroke: var(--accent);
    filter: drop-shadow(0 0 6px rgba(6, 182, 212, 0.5));
}

.progress-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.progress-val {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.progress-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 4px;
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
    gap: 16px;
}

.stat-box {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--accent);
}

.stat-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Galleries and Lightbox styling */
.gallery-wrapper {
    width: 100%;
}

.gallery-title-inline {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.gallery-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(5, 1fr);
}

.gallery-mini {
    grid-template-columns: repeat(4, 1fr);
}

.gallery-item {
    position: relative;
    aspect-ratio: 4/3;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-color);
    background-color: var(--bg-card);
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(9, 13, 22, 0) 50%, rgba(9, 13, 22, 0.95) 100%);
    opacity: 0;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 12px;
    transition: opacity var(--transition-fast);
}

.gallery-caption {
    font-size: 0.8rem;
    color: var(--text-primary);
    text-align: center;
    font-weight: 500;
}

.zoom-icon {
    color: var(--text-primary);
    opacity: 0.8;
}

.gallery-item:hover img {
    transform: scale(1.08);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

/* Features Block Styling */
.features-section {
    background-image: radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
    border-top: 1px solid var(--border-color);
}

.feature-card {
    padding: 40px 32px;
    height: 100%;
}

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon.speed {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent);
}

.feature-icon.intellect {
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-secondary);
}

.feature-icon.comfort {
    background: rgba(245, 158, 11, 0.1);
    color: var(--accent-warning);
}

.feature-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.gallery-title {
    font-size: 1.5rem;
    margin-bottom: 32px;
    position: relative;
    padding-bottom: 12px;
}

.gallery-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* Import Substitution Section */
.reliability-section {
    background-color: #0b101b;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.highlight-card {
    margin-bottom: 16px;
    padding: 24px;
}

.icon-text-block {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.block-icon {
    width: 48px;
    height: 48px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--accent-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-text-block h4 {
    font-size: 1.15rem;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.icon-text-block p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Safety Section Styling */
.safety-section {
    background-image: radial-gradient(circle at 10% 80%, rgba(245, 158, 11, 0.05) 0%, transparent 40%);
}

.safety-features-list {
    display: grid;
    gap: 24px;
}

.safety-card {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.bullet-check {
    width: 28px;
    height: 28px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    color: #10b981;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
}

.safety-card h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.safety-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.safety-text-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.safety-main-card {
    padding: 48px 40px;
    border-left: 4px solid var(--accent-warning);
}

.safety-main-card h4 {
    font-size: 1.25rem;
    color: var(--accent-warning);
    margin-bottom: 16px;
}

.safety-main-card .lead {
    font-size: 1.15rem;
    color: var(--text-primary);
    line-height: 1.7;
}

/* Video Showcase Section */
.video-section {
    background-color: #0b101b;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.video-card {
    overflow: hidden;
    padding: 0;
    border-radius: 16px;
}

.video-container {
    position: relative;
    width: 100%;
    aspect-ratio: 16/9;
    background-color: #000;
    overflow: hidden;
}

.elevator-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    cursor: pointer;
    transition: transform var(--transition-smooth);
}

.video-container:hover .elevator-video {
    transform: scale(1.03);
}

.video-overlay-ctrl {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 10;
}

.status-indicator {
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--accent);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 9999px;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

.video-details {
    padding: 24px;
}

.video-details h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    font-weight: 600;
}

.video-details p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Timeline & Next Stage Section */
.timeline-section {
    position: relative;
    background-image: radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.05) 0%, transparent 60%);
}

.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 64px auto 0 auto;
    padding: 20px 0;
}

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

.timeline-item {
    position: relative;
    width: 50%;
    margin-bottom: 40px;
}

.timeline-item.left {
    left: 0;
    padding-right: 40px;
}

.timeline-item.right {
    left: 50%;
    padding-left: 40px;
}

.timeline-dot {
    position: absolute;
    top: 30px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-base);
    border: 2px solid var(--border-color);
    z-index: 5;
    transition: all var(--transition-fast);
}

.timeline-item.left .timeline-dot {
    right: -8px;
}

.timeline-item.right .timeline-dot {
    left: -8px;
}

.timeline-dot.active {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}

.timeline-card {
    padding: 24px;
}

.timeline-card.highlight-border {
    border-color: var(--accent);
    box-shadow: var(--shadow-glow), var(--shadow-md);
}

.timeline-date {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 8px;
}

.timeline-card h4 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.timeline-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.timeline-thank-you {
    max-width: 800px;
    margin: 80px auto 0 auto;
}

.sign-off-block {
    margin-top: 48px;
    padding: 32px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    border: 1px solid rgba(6, 182, 212, 0.1);
}

.sign-off-block h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.sign-off-block .author {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent);
}

/* Footer styling */
.main-footer {
    background-color: #05070c;
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Fullscreen Lightbox Modal */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(9, 13, 22, 0.98);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.lightbox.open {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    position: relative;
    max-width: 85%;
    max-height: 80%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
    border: 1px solid var(--border-color);
    transform: scale(0.95);
    transition: transform var(--transition-smooth);
}

.lightbox.open .lightbox-content img {
    transform: scale(1);
}

.lightbox-caption {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 1.1rem;
    margin-top: 20px;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.lightbox-btn {
    position: absolute;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 2100;
}

.lightbox-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--accent);
    border-color: var(--accent);
}

.lightbox-close {
    top: 32px;
    right: 32px;
}

.lightbox-prev {
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
}

.lightbox-next {
    right: 40px;
    top: 50%;
    transform: translateY(-50%);
}

/* Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.scroll-reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Keyframe animations for Hero load */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

.animate-slide-up {
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-slide-up-delayed {
    opacity: 0;
    animation: slideUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    animation-delay: 0.2s;
}

/* Responsiveness Responsive Media Queries */
@media (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .gallery-mini {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 968px) {
    section {
        padding: 64px 0;
    }
    .grid-2-col {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .hero-title {
        font-size: 2.75rem;
    }
    .timeline-line {
        left: 24px;
    }
    .timeline-item {
        width: 100%;
        margin-bottom: 32px;
    }
    .timeline-item.left, .timeline-item.right {
        left: 0;
        padding-left: 56px;
        padding-right: 0;
    }
    .timeline-dot {
        left: 16px !important;
    }
    .intro-block {
        margin-top: -40px;
    }
    .intro-content {
        flex-direction: column;
        gap: 16px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .grid-3-col {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 2.25rem;
    }
    .lightbox-prev {
        left: 16px;
    }
    .lightbox-next {
        right: 16px;
    }
    .lightbox-btn {
        width: 44px;
        height: 44px;
    }
    .lightbox-close {
        top: 16px;
        right: 16px;
    }
}

@media (max-width: 480px) {
    .gallery-grid, .gallery-mini {
        grid-template-columns: repeat(2, 1fr);
    }
    .progress-stats {
        grid-template-columns: 1fr;
    }
}