:root {
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --primary-light: #14b8a6;
    --primary-50: #f0fdfa;
    --primary-100: #ccfbf1;
    --primary-200: #99f6e4;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --navy: #0c1222;
    --navy-light: #151d32;
    --surface: #ffffff;
    --surface-muted: #f8fafc;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --shadow-sm: 0 1px 2px rgba(12, 18, 34, 0.06);
    --shadow: 0 4px 16px rgba(12, 18, 34, 0.08);
    --shadow-md: 0 12px 32px rgba(12, 18, 34, 0.1);
    --shadow-lg: 0 24px 48px rgba(12, 18, 34, 0.12);
    --shadow-xl: 0 32px 64px rgba(12, 18, 34, 0.16);
    --shadow-glow: 0 0 60px rgba(13, 148, 136, 0.25);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: 'Vazirmatn', system-ui, sans-serif;
    background: var(--surface);
    color: var(--gray-700);
    line-height: 1.75;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
    overflow: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    line-height: 1.25;
    color: var(--gray-900);
}

p {
    color: var(--gray-600);
}

a {
    text-decoration: none;
    color: inherit;
}

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

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

.scroll-progress {
    position: fixed;
    top: 0;
    right: 0;
    height: 3px;
    width: 0%;
    background: linear-gradient(90deg, var(--primary-light), var(--primary));
    z-index: 10001;
    transition: width 0.1s linear;
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    transition: all 0.5s var(--ease-out);
}

.navbar::before {
    content: '';
    position: absolute;
    inset: 0;
    background: transparent;
    transition: all 0.5s var(--ease-out);
}

.navbar.scrolled::before {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-sm);
}

.navbar-inner {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
    transition: color 0.4s ease;
    flex-shrink: 0;
}

.navbar.scrolled .navbar-brand {
    color: var(--gray-900);
}

.navbar-brand-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: #fff;
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.35);
}

.navbar-nav {
    display: flex;
    gap: 4px;
    list-style: none;
}

.nav-link {
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.9rem;
    font-weight: 500;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    transition: all 0.35s var(--ease-out);
    position: relative;
}

.navbar.scrolled .nav-link {
    color: var(--gray-600);
}

.nav-link span {
    position: relative;
    z-index: 1;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 6px;
    right: 16px;
    left: 16px;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transform: scaleX(0);
    transition: transform 0.35s var(--ease-out);
}

.nav-link:hover::after,
.nav-link.active::after {
    transform: scaleX(1);
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: var(--primary-dark);
}

.nav-link.active {
    color: #fff;
    font-weight: 600;
}

.navbar-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    color: #fff;
    font-size: 0.875rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
    transition: all 0.35s var(--ease-out);
    flex-shrink: 0;
}

.navbar-cta:hover {
    background: #fff;
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.navbar.scrolled .navbar-cta {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 4px 16px rgba(13, 148, 136, 0.3);
}

.navbar-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    cursor: pointer;
    padding: 10px;
    transition: all 0.3s ease;
}

.navbar.scrolled .navbar-toggle {
    background: var(--gray-100);
    border-color: var(--gray-200);
}

.navbar-toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.navbar.scrolled .navbar-toggle-bar {
    background: var(--gray-800);
}

.hero {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--navy);
    overflow: hidden;
    padding: calc(var(--nav-height) + 40px) 0 80px;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-inner {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px 8px 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8125rem;
    font-weight: 500;
    margin-bottom: 28px;
    backdrop-filter: blur(12px);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-light);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--primary-light);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
    font-size: clamp(2.75rem, 5vw, 4.25rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-title-line {
    display: block;
    color: #fff;
}

.hero-title-accent {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 50%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
    margin-bottom: 20px;
}

.hero-description {
    font-size: 1.0625rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.9;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9375rem;
    transition: all 0.35s var(--ease-out);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 3px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
    color: #fff;
    box-shadow: 0 8px 24px rgba(13, 148, 136, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(13, 148, 136, 0.5);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

.hero-metrics {
    display: flex;
    align-items: center;
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-metric {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 2px;
}

.hero-metric-value {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    font-variant-numeric: tabular-nums;
}

.hero-metric-suffix {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-light);
}

.hero-metric-label {
    width: 100%;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.45);
    margin-top: 4px;
}

.hero-metric-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
}

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

.hero-image-frame {
    position: relative;
    width: 100%;
    max-width: 420px;
}

.hero-image-glow {
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.3), transparent 60%);
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.hero-image {
    position: relative;
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(20, 184, 166, 0.1);
}

.hero-image-badge {
    position: absolute;
    bottom: 24px;
    right: -16px;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: floatBadge 6s ease-in-out infinite;
}

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

.hero-image-badge i {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.125rem;
}

.hero-image-badge strong {
    display: block;
    font-size: 0.9375rem;
    color: var(--gray-900);
}

.hero-image-badge span {
    font-size: 0.75rem;
    color: var(--gray-500);
}

.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.3s ease;
}

.scroll-indicator:hover {
    color: rgba(255, 255, 255, 0.7);
}

.scroll-indicator-text {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
}

.scroll-indicator-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.5), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { transform: scaleY(1); opacity: 1; }
    50% { transform: scaleY(0.6); opacity: 0.5; }
}

.section {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}

.section .container {
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    margin-bottom: 72px;
    position: relative;
}

.section-header::after {
    content: '';
    display: block;
    width: 48px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
    margin: 28px auto 0;
    opacity: 0.6;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-50);
    color: var(--primary-dark);
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.8125rem;
    font-weight: 700;
    margin-bottom: 20px;
    border: 1px solid var(--primary-100);
}

.section-title {
    font-size: clamp(1.875rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-title-right {
    text-align: right;
    margin-bottom: 24px;
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--gray-500);
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.85;
}

.section-divider {
    width: 48px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
    margin-bottom: 32px;
}

.section-divider-right {
    margin-right: 0;
}

.about {
    background: var(--surface);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image-group {
    position: relative;
}

.about-image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 1px solid rgba(13, 148, 136, 0.15);
    border-radius: var(--radius-xl);
    z-index: 1;
    pointer-events: none;
}

.about-image-main {
    width: 100%;
    height: 520px;
    object-fit: cover;
}

.about-floating-card {
    position: absolute;
    bottom: -24px;
    left: -24px;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px 24px;
    background: #fff;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
}

.about-floating-icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.25rem;
}

.about-floating-card strong {
    display: block;
    font-size: 1.125rem;
    color: var(--gray-900);
}

.about-floating-card span {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

.about-intro {
    font-size: 1.125rem;
    color: var(--gray-600);
    line-height: 2;
    margin-bottom: 20px;
}

.about-text {
    font-size: 1rem;
    color: var(--gray-500);
    line-height: 2;
    margin-bottom: 28px;
}

.about-quote {
    position: relative;
    padding: 24px 28px 24px 56px;
    background: var(--primary-50);
    border-right: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-size: 1rem;
    font-style: italic;
    color: var(--gray-700);
    line-height: 1.9;
    margin-bottom: 36px;
}

.about-quote i {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.25rem;
    color: var(--primary);
    opacity: 0.4;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.stat-item {
    background: var(--surface-muted);
    padding: 28px 20px;
    border-radius: var(--radius-md);
    text-align: center;
    transition: all 0.4s var(--ease-out);
    border: 1px solid var(--gray-100);
}

.stat-item:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.stat-item:hover .stat-value,
.stat-item:hover .stat-suffix {
    color: #fff;
}

.stat-item:hover .stat-label {
    color: rgba(255, 255, 255, 0.85);
}

.stat-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary-dark);
    font-variant-numeric: tabular-nums;
    transition: color 0.3s ease;
}

.stat-suffix {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    transition: color 0.3s ease;
}

.stat-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--gray-500);
    font-weight: 500;
    margin-top: 6px;
    transition: color 0.3s ease;
}

.expertise {
    background: var(--surface-muted);
    position: relative;
}

.expertise::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--gray-200), transparent);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.expertise-card {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    transition: all 0.45s var(--ease-out);
    border: 1px solid rgba(226, 232, 240, 0.8);
    position: relative;
    overflow: hidden;
}

.expertise-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-light), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.45s var(--ease-out);
}

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

.expertise-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.expertise-number {
    position: absolute;
    top: 20px;
    left: 24px;
    font-size: 3rem;
    font-weight: 900;
    color: var(--gray-100);
    line-height: 1;
    transition: color 0.4s ease;
}

.expertise-card:hover .expertise-number {
    color: var(--primary-100);
}

.expertise-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-50), var(--primary-100));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 1.5rem;
    color: var(--primary-dark);
    transition: all 0.45s var(--ease-out);
}

.expertise-card:hover .expertise-icon {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    transform: scale(1.08);
    box-shadow: 0 8px 20px rgba(13, 148, 136, 0.35);
}

.expertise-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.expertise-description {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.85;
}

.articles {
    background: var(--surface);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.article-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.45s var(--ease-out);
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow-sm);
}

.article-card-link {
    display: block;
    color: inherit;
    height: 100%;
}

.article-card-link .article-link {
    display: inline-flex;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.article-card:hover .article-art {
    filter: brightness(1.08);
}

.article-image-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.article-art {
    transition: filter 0.5s var(--ease-out);
}

.article-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(12, 18, 34, 0.6), transparent 50%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.article-card:hover .article-overlay {
    opacity: 1;
}

.article-category {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    color: var(--primary-dark);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
}

.article-content {
    padding: 28px;
}

.article-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 14px;
}

.article-meta span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: var(--gray-400);
}

.article-meta i {
    font-size: 0.75rem;
}

.article-title {
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.article-card:hover .article-title {
    color: var(--primary-dark);
}

.article-excerpt {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.85;
    margin-bottom: 20px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-dark);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: gap 0.3s ease, color 0.3s ease;
}

.article-link:hover {
    gap: 14px;
    color: var(--primary);
}

.articles-cta {
    text-align: center;
    margin-top: 64px;
}

.timeline-section {
    background: var(--surface-muted);
}

.timeline {
    position: relative;
    max-width: 780px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    right: 27px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--gray-200));
}

.timeline-item {
    position: relative;
    padding-right: 88px;
    padding-bottom: 48px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    right: 0;
    top: 4px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 1.125rem;
    box-shadow: 0 0 0 8px var(--surface-muted), var(--shadow-md);
    transition: all 0.4s var(--ease-spring);
    z-index: 2;
}

.timeline-item:hover .timeline-marker {
    transform: scale(1.12);
    box-shadow: 0 0 0 8px var(--surface-muted), var(--shadow-glow);
}

.timeline-content {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    padding: 32px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    transition: all 0.4s var(--ease-out);
    border: 1px solid var(--gray-100);
}

.timeline-content:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(-8px);
    border-color: var(--primary-100);
}

.timeline-date {
    display: inline-block;
    font-size: 0.8125rem;
    color: var(--primary-dark);
    font-weight: 700;
    background: var(--primary-50);
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 16px;
    border: 1px solid var(--primary-100);
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.timeline-description {
    font-size: 0.9375rem;
    color: var(--gray-500);
    line-height: 1.85;
}

.footer {
    background: var(--navy);
    padding: 72px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}

.footer-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.footer-desc {
    color: var(--gray-400);
    font-size: 0.9375rem;
    line-height: 1.85;
    max-width: 360px;
}

.footer-heading {
    font-size: 0.875rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--gray-400);
    font-size: 0.9375rem;
    transition: color 0.3s ease, transform 0.3s ease;
    display: inline-block;
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(-4px);
}

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

.social-link {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    font-size: 1.125rem;
    transition: all 0.35s var(--ease-out);
}

.social-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(13, 148, 136, 0.35);
}

.footer-bottom {
    padding: 28px 0;
    text-align: center;
}

.footer-text {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    visibility: hidden;
}

.mobile-menu.active {
    pointer-events: auto;
    visibility: visible;
}

.mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(12, 18, 34, 0.6);
    backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.mobile-menu.active .mobile-menu-backdrop {
    opacity: 1;
}

.mobile-menu-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(360px, 85vw);
    height: 100%;
    background: var(--navy);
    padding: 80px 32px 40px;
    transform: translateX(100%);
    transition: transform 0.45s var(--ease-out);
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.3);
}

.mobile-menu.active .mobile-menu-panel {
    transform: translateX(0);
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: #fff;
    font-size: 1.125rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.15);
}

.mobile-menu-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-menu-link {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.125rem;
    font-weight: 600;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    transition: all 0.35s var(--ease-out);
    border: 1px solid transparent;
}

.mobile-menu-link:hover {
    background: rgba(255, 255, 255, 0.06);
    color: #fff;
}

.mobile-menu-link.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-color: transparent;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

.reveal.delay-1 { transition-delay: 0.1s; }
.reveal.delay-2 { transition-delay: 0.2s; }
.reveal.delay-3 { transition-delay: 0.3s; }
.reveal.delay-4 { transition-delay: 0.4s; }
.reveal.delay-5 { transition-delay: 0.5s; }
.reveal.delay-6 { transition-delay: 0.6s; }

.not-found-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.not-found-lab-scene {
    opacity: 0.5;
}

.not-found-container {
    z-index: 10;
    display: flex;
    justify-content: center;
    width: 100%;
}

.not-found-content {
    max-width: 600px;
    margin: 0 auto;
}

.not-found-badge {
    margin: 0 auto 2rem auto;
    width: max-content;
}

.not-found-badge-dot {
    background-color: #ef4444;
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.5);
}

.not-found-title {
    margin-bottom: 1rem;
    font-size: clamp(5rem, 15vw, 10rem);
    line-height: 1;
}

.not-found-description {
    text-align: center;
    margin-bottom: 2.5rem;
}

.not-found-actions {
    justify-content: center;
}

.not-found-home-icon {
    margin-left: 0.5rem;
    margin-right: 0;
}

.page-404 .navbar::before {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    box-shadow: var(--shadow-sm);
}

.page-404 .navbar-brand,
.page-404 .nav-link {
    color: var(--gray-900);
}

.page-404 .nav-link {
    color: var(--gray-600);
}

.page-404 .navbar-toggle {
    background: var(--gray-100);
    border-color: var(--gray-200);
}

.page-404 .navbar-toggle-bar {
    background: var(--gray-800);
}

@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        order: -1;
    }

    .hero-image-frame {
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-image-badge {
        right: 0;
    }

    .navbar-cta {
        display: none;
    }

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

    .about-grid {
        gap: 48px;
    }

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

@media (max-width: 768px) {
    :root {
        --nav-height: 72px;
    }

    .navbar-nav {
        display: none;
    }

    .navbar-toggle {
        display: flex;
    }

    .section {
        padding: 80px 0;
    }

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

    .about-image-main {
        height: 380px;
    }

    .about-floating-card {
        left: 16px;
        bottom: -16px;
    }

    .section-title-right {
        text-align: center;
    }

    .section-divider-right {
        margin-right: auto;
        margin-left: auto;
    }

    .expertise-grid,
    .articles-grid {
        grid-template-columns: 1fr;
    }

    .hero-metrics {
        flex-wrap: wrap;
        gap: 24px;
    }

    .hero-metric-divider {
        display: none;
    }

    .hero-metric {
        flex: 1 1 40%;
        text-align: center;
        justify-content: center;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 36px;
    }

    .footer-desc {
        max-width: none;
    }

    .footer-links ul {
        align-items: center;
    }

    .social-links {
        justify-content: center;
    }

    .timeline-line {
        right: 19px;
    }

    .timeline-item {
        padding-right: 64px;
    }

    .timeline-marker {
        width: 40px;
        height: 40px;
        font-size: 0.9375rem;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

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

    .about-stats {
        grid-template-columns: 1fr;
    }

    .about-floating-card {
        position: relative;
        left: 0;
        bottom: 0;
        margin-top: 16px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}