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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #06b6d4;
    --accent-dark: #0891b2;
    --bg-dark: #0a0a1a;
    --bg-section: #0f0f23;
    --bg-card: #161630;
    --bg-card-hover: #1e1e40;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: #1e293b;
    --border-light: #334155;
    --gradient-1: linear-gradient(135deg, #6366f1, #06b6d4);
    --gradient-2: linear-gradient(135deg, #6366f1, #a855f7);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

ul { list-style: none; }

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    z-index: 1001;
}

.logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: var(--radius-sm);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700;
    font-size: 16px;
    color: white;
}

.logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
}

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

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
}

.nav-cta {
    background: var(--gradient-1);
    color: white !important;
    padding: 8px 20px;
    border-radius: 50px;
}

.nav-cta:hover {
    opacity: 0.9;
    background: var(--gradient-1);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.bar {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

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

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(99, 102, 241, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1.5px solid var(--border-light);
}

.btn-outline:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 10px 24px;
    font-size: 14px;
}

.btn-lg {
    padding: 18px 40px;
    font-size: 17px;
}

.btn-full {
    width: 100%;
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg-effects {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.hero-orb-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -100px;
    right: -100px;
    animation: float1 8s ease-in-out infinite;
}

.hero-orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -50px;
    left: -100px;
    animation: float2 10s ease-in-out infinite;
}

.hero-orb-3 {
    width: 300px;
    height: 300px;
    background: #a855f7;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: float3 12s ease-in-out infinite;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 30px); }
}
@keyframes float2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, -20px); }
}
@keyframes float3 {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    letter-spacing: 0.5px;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-title {
    margin-bottom: 20px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-title-line {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(32px, 6vw, 64px);
    font-weight: 800;
    letter-spacing: -1px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-title-sub {
    display: block;
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(16px, 2.5vw, 24px);
    font-weight: 500;
    color: var(--text-secondary);
    margin-top: 8px;
    letter-spacing: 2px;
}

.hero-description {
    font-size: clamp(16px, 2vw, 18px);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: rgba(22, 22, 48, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.stat-icon {
    font-size: 24px;
    color: var(--primary-light);
}

.stat-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* ===== Section Common ===== */
.section {
    padding: 100px 0;
}

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

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
    background: var(--bg-section);
}

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

.service-card {
    position: relative;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s;
}

.service-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.featured {
    border-color: rgba(99, 102, 241, 0.3);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05), rgba(6, 182, 212, 0.05));
}

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: var(--gradient-1);
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    color: white;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary-light);
}

.service-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.service-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.service-features {
    margin-bottom: 20px;
}

.service-features li {
    padding: 4px 0;
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 16px;
    position: relative;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

.service-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-light);
    transition: all 0.3s;
}

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

/* ===== Web3 Solutions Section ===== */
.web3 {
    background: var(--bg-dark);
}

.web3-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.web3-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
}

.web3-card:hover {
    transform: translateY(-4px);
    border-color: rgba(6, 182, 212, 0.3);
    box-shadow: var(--shadow-lg);
}

.web3-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.web3-emoji {
    font-size: 36px;
    line-height: 1;
}

.web3-card-header h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
}

.web3-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.web3-features, .web3-benefits {
    margin-bottom: 20px;
}

.web3-features h4, .web3-benefits h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    padding: 5px 12px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-size: 12px;
    color: var(--primary-light);
    font-weight: 500;
}

.web3-benefits ul li {
    padding: 4px 0;
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}

.web3-benefits ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
    font-size: 12px;
}

/* ===== Education Section ===== */
.education {
    background: var(--bg-section);
}

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

.edu-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
    text-align: center;
}

.edu-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-lg);
}

.edu-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 50%;
    margin: 0 auto 16px;
}

.edu-icon svg {
    width: 30px;
    height: 30px;
    color: var(--accent);
}

.edu-label {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(6, 182, 212, 0.12);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
}

.edu-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.edu-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.edu-features {
    text-align: left;
    margin-bottom: 24px;
}

.edu-features li {
    padding: 5px 0;
    font-size: 13px;
    color: var(--text-secondary);
    padding-left: 20px;
    position: relative;
}

.edu-features li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

/* ===== AI Agents Section ===== */
.ai-agents {
    background: var(--bg-dark);
}

.ai-layout {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 32px;
    align-items: start;
}

.ai-feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.ai-feature {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.4s ease;
}

.ai-feature:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-2px);
}

.ai-feature-num {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.ai-feature h4 {
    font-size: 17px;
    font-weight: 600;
    margin-bottom: 8px;
}

.ai-feature p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.ai-sidebar {
    position: sticky;
    top: 100px;
}

.ai-use-cases {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
}

.ai-use-cases h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.use-case {
    display: flex;
    gap: 12px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.use-case:last-child {
    border-bottom: none;
}

.use-case-icon {
    color: var(--primary-light);
    font-size: 8px;
    margin-top: 6px;
    flex-shrink: 0;
}

.use-case strong {
    display: block;
    font-size: 15px;
    margin-bottom: 4px;
}

.use-case p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ===== About Section ===== */
.about {
    background: var(--bg-section);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.about-card {
    padding: 32px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.4s ease;
}

.about-card:hover {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.3);
    box-shadow: var(--shadow-md);
}

.about-icon {
    font-size: 36px;
    margin-bottom: 16px;
    display: block;
}

.about-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.about-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== CTA Section ===== */
.cta-section {
    background: var(--bg-dark);
    padding: 80px 0;
}

.cta-box {
    text-align: center;
    padding: 60px 40px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.25);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent);
    border-radius: 50%;
}

.cta-box h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 700;
    margin-bottom: 16px;
    position: relative;
}

.cta-box p {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 1.7;
    position: relative;
}

.cta-box .btn {
    position: relative;
}

/* ===== Contact Section ===== */
.contact {
    background: var(--bg-section);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-form-wrapper {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.contact-form-wrapper h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(15, 15, 35, 0.6);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 15px;
    transition: all 0.3s;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-group select option {
    background: var(--bg-card);
    color: var(--text-primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.info-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.info-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.info-item {
    margin-bottom: 16px;
}

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

.info-item h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 6px;
}

.info-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.services-list li {
    padding: 6px 0;
    font-size: 14px;
    color: var(--text-secondary);
    padding-left: 16px;
    position: relative;
}

.services-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 13px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links ul li {
    margin-bottom: 10px;
}

.footer-links ul li a {
    font-size: 14px;
    color: var(--text-muted);
    transition: color 0.3s;
}

.footer-links ul li a:hover {
    color: var(--primary-light);
}

.footer-links ul li:not(:has(a)) {
    font-size: 14px;
    color: var(--text-muted);
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== Scroll Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Mobile Responsive ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .web3-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .web3-cards .web3-card:last-child {
        grid-column: 1 / -1;
        max-width: 100%;
    }
    .education-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .education-grid .edu-card:last-child {
        grid-column: 1 / -1;
        max-width: 600px;
        margin: 0 auto;
    }
    .ai-layout {
        grid-template-columns: 1fr;
    }
    .ai-sidebar {
        position: static;
    }
    .about-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1100px) {
    /* Nav Mobile */
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 8px;
        padding: 80px 32px 32px;
        transition: right 0.3s ease;
        border-left: 1px solid var(--border);
    }

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

    .nav-link {
        font-size: 18px;
        padding: 12px 24px;
        width: 100%;
        text-align: center;
    }

    .nav-cta {
        margin-top: 16px;
    }

    /* Mobile overlay */
    .nav-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .nav-overlay.active {
        display: block;
    }

    /* Hero Mobile */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-item {
        padding: 12px;
    }

    /* Sections */
    .section {
        padding: 70px 0;
    }

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

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

    .web3-cards {
        grid-template-columns: 1fr;
    }

    .web3-cards .web3-card:last-child {
        grid-column: auto;
    }

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

    .education-grid .edu-card:last-child {
        grid-column: auto;
        max-width: 100%;
    }

    .ai-feature-grid {
        grid-template-columns: 1fr;
    }

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

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title-line {
        font-size: 28px;
    }

    .hero-title-sub {
        font-size: 14px;
    }

    .hero-description {
        font-size: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

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

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 15px;
    }

    .service-card, .web3-card, .edu-card, .ai-feature {
        padding: 24px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }

    .section-title {
        font-size: 26px;
    }
}

/* ===== Language Switcher ===== */
.lang-switcher {
    position: relative;
    z-index: 1001;
    margin-left: 12px;
}

.lang-select {
    padding: 7px 30px 7px 14px;
    background: rgba(99, 102, 241, 0.1);
    border: 1.5px solid rgba(99, 102, 241, 0.3);
    border-radius: 50px;
    color: var(--primary-light);
    font-size: 13px;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236366f1' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
}

.lang-select:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
}

.lang-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.lang-select option {
    background: var(--bg-card);
    color: var(--text-primary);
    font-weight: 600;
    padding: 8px;
}

/* ===== Form Success Message ===== */
.form-success-message {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 30px;
    text-align: center;
    gap: 16px;
}

.success-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.form-success-message h3 {
    font-size: 22px;
    color: var(--text-primary);
}

.form-success-message p {
    color: var(--text-secondary);
    font-size: 15px;
}

@media (max-width: 768px) {
    .lang-switcher {
        margin-right: 8px;
    }
}