/* CSS Reset & Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #14b8a6;
    --accent: #fbbf24;
    --success: #10b981;
    --text-primary: #1e3a8a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --bg: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-tertiary: #edf2f7;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

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

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
    position: relative;
}

.nav-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.btn-nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: #2563eb;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: background 0.2s ease;
}

.btn-nav-cta:hover {
    background: #1e40af;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: 'Poppins', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    font-size: 28px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.nav-menu li a:hover {
    color: var(--primary);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    padding: 160px 0 120px;
    background: linear-gradient(180deg, #f7fafc 0%, #ffffff 100%);
    overflow: hidden;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
}

.hero-title {
    font-family: 'Poppins', sans-serif;
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.gradient-text {
    color: #2563eb;
}

.hero-description {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
}

.btn-hero {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #2563eb;
    color: white;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.4);
    background: #1e40af;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s ease;
}

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

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 48px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.stat-item i {
    font-size: 32px;
    color: var(--primary);
}

.stat-number {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
}

.hero-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.decoration-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.circle-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    top: -200px;
    right: -100px;
}

.circle-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
    bottom: -150px;
    left: -100px;
}

.circle-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #0ea5e9, #06b6d4);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Features Section */
.features {
    padding: 100px 0;
    background: white;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.feature-categories {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.feature-category {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.feature-category:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-category:nth-child(3) {
    animation-delay: 0.4s;
}

.category-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 32px;
}

.category-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: white;
}

.category-header h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.category-header p {
    font-size: 16px;
    color: var(--text-secondary);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.feature-card i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 16px;
}

.feature-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

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

/* Gamification Section */
.gamification {
    padding: 100px 0;
    background: #2563eb;
    color: white;
}

.gamification-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
}

.gamification-text h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

.gamification-text p {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 32px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.feature-list i {
    font-size: 24px;
    color: #10b981;
    flex-shrink: 0;
}

.feature-list strong {
    display: block;
    font-size: 16px;
    margin-bottom: 4px;
}

.feature-list span {
    font-size: 14px;
    opacity: 0.85;
}

.gamification-visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.level-card {
    padding: 32px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.level-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 700;
}

.level-header i {
    color: #fbbf24;
}

.progress-bar {
    height: 16px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    overflow: hidden;
    margin-bottom: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.progress-fill {
    height: 100%;
    background: #10b981;
    border-radius: 50px;
    transition: width 1.5s ease-out;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

.xp-text {
    font-size: 14px;
    opacity: 0.9;
}

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

.streak-card {
    padding: 24px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-align: center;
}

.streak-card i {
    font-size: 28px;
    margin-bottom: 12px;
    opacity: 0.9;
}

.streak-number {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 4px;
}

.streak-label {
    font-size: 12px;
    opacity: 0.8;
}

/* Why Credify Section */
.why-credify {
    padding: 60px 0;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.why-box {
    max-width: 700px;
    margin: 0 auto;
    padding: 40px 48px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px rgba(251, 191, 36, 0.3);
    text-align: center;
    border: 3px solid var(--accent);
}

.why-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: white;
    box-shadow: 0 4px 12px rgba(251, 191, 36, 0.4);
}

.why-box h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.why-box p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
}

.why-box strong {
    color: var(--primary);
    font-weight: 600;
}

/* Tech Stack Section */
.tech-stack {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.tech-card {
    padding: 32px;
    background: white;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    text-align: center;
    transition: all 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.tech-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 16px;
}

.tech-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.tech-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.tech-version {
    display: inline-block;
    padding: 4px 12px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.platform-badges {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: white;
    border-radius: 50px;
    border: 1px solid var(--border);
    font-weight: 500;
    font-size: 14px;
    color: var(--text-secondary);
}

.badge-item i {
    font-size: 18px;
    color: var(--primary);
}

/* Privacy Section */
.privacy {
    padding: 100px 0;
    background: white;
}

.privacy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.privacy-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.privacy-icon-wrapper {
    width: 200px;
    height: 200px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: white;
    animation: pulse 2s ease-in-out infinite;
}

.privacy-text h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.privacy-text p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Getting Started Section */
.getting-started {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.guide-card {
    position: relative;
    padding: 48px 40px 40px;
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.guide-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.guide-number {
    position: absolute;
    top: -20px;
    left: 40px;
    width: 40px;
    height: 40px;
    background: #2563eb;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 700;
    color: white;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.guide-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: white;
    margin-bottom: 24px;
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.2);
}

.guide-card h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.guide-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.requirements {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 24px 0;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border-left: 3px solid var(--success);
}

.requirements span {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 600;
}

.requirements i {
    color: var(--success);
    font-size: 16px;
}

.guide-features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.guide-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

.guide-features i {
    color: var(--primary);
    font-size: 12px;
}

.privacy-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
}

.privacy-badges span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 600;
    border: 1px solid var(--border);
}

.privacy-badges i {
    color: var(--success);
    font-size: 14px;
}

.guide-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
    padding: 12px 24px;
    background: #2563eb;
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
}

.guide-link:hover {
    background: #1e40af;
    transform: translateX(4px);
}

.guide-link i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.guide-link:hover i {
    transform: translateX(4px);
}

.faq-section {
    margin-top: 80px;
}

.faq-title {
    font-family: 'Poppins', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 48px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.faq-item {
    padding: 32px;
    background: white;
    border-radius: var(--radius-lg);
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.faq-icon {
    width: 48px;
    height: 48px;
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

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

.faq-item h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.faq-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* iOS Waitlist Section */
.ios-waitlist {
    padding: 80px 0;
    background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
}

.waitlist-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.waitlist-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #1e293b, #334155);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 40px;
    color: white;
    box-shadow: 0 10px 30px rgba(30, 41, 59, 0.3);
}

.waitlist-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.waitlist-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

.btn-waitlist {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #1e293b;
    color: white;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(30, 41, 59, 0.2);
}

.btn-waitlist:hover {
    background: #334155;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(30, 41, 59, 0.3);
}

.btn-waitlist i:last-child {
    transition: transform 0.3s ease;
}

.btn-waitlist:hover i:last-child {
    transform: translateX(4px);
}

.waitlist-note {
    display: block;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-tertiary);
    font-style: italic;
}

.waitlist-note i {
    color: var(--primary);
    margin-right: 6px;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: #2563eb;
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: white;
    color: var(--primary);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(255, 255, 255, 0.3);
}

.btn-cta-outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: transparent;
    color: white;
    border: 2px solid white;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.2s ease;
}

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

/* Footer */
.footer {
    padding: 50px 0 30px;
    background: #000000;
    color: white;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 48px;
    margin-bottom: 30px;
}

.footer-brand p {
    margin-top: 12px;
    opacity: 0.8;
    font-size: 14px;
    max-width: 300px;
}

.footer-column {
    min-width: 120px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-column a {
    color: white;
    opacity: 0.7;
    text-decoration: none;
    font-size: 14px;
    transition: opacity 0.3s ease;
}

.footer-column a:hover {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 18px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    opacity: 0.7;
}

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

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

/* Responsive Design */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 73px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background: white;
        padding: 24px;
        box-shadow: var(--shadow-lg);
        transition: left 0.3s ease;
    }

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

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-description {
        font-size: 18px;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    .gamification-content,
    .privacy-content {
        grid-template-columns: 1fr;
    }

    .gamification-visual {
        order: -1;
    }

    .section-title {
        font-size: 36px;
    }

    .footer-content {
        flex-wrap: wrap;
        gap: 32px;
    }

    .footer-brand {
        width: 100%;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-description {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

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

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

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

    .platform-badges {
        flex-direction: column;
    }

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

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn-cta,
    .btn-cta-outline {
        width: 100%;
        justify-content: center;
    }
}