/* Root Variables */
:root {
    --primary-purple: #6B46C1;
    --primary-purple-dark: #5B3BA8;
    --secondary-pink: #EC4899;
    --secondary-orange: #F97316;
    --background: #FFFFFF;
    --surface: #F9FAFB;
    --text-primary: #111827;
    --text-secondary: #6B7280;
    --border: #E5E7EB;
    --shadow: rgba(0, 0, 0, 0.1);
    --gradient-1: linear-gradient(135deg, #6B46C1 0%, #9333EA 100%);
    --gradient-2: linear-gradient(135deg, #EC4899 0%, #F97316 100%);
    --gradient-bg: linear-gradient(135deg, #6366F1 0%, #8B5CF6 25%, #D946EF 50%, #EC4899 75%, #F97316 100%);
}

[data-theme="dark"] {
    --background: #0F172A;
    --surface: #1E293B;
    --text-primary: #F1F5F9;
    --text-secondary: #94A3B8;
    --border: #334155;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-1);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    box-shadow: 0 4px 12px var(--shadow);
    transition: transform 0.2s ease;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

.theme-toggle svg {
    color: white;
    transition: opacity 0.3s ease;
}

.theme-toggle .moon-icon {
    position: absolute;
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
}

/* Navigation */
.navbar {
    background-color: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo img {
    border-radius: 16px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary-purple);
}

/* Hero Section */
.hero {
    padding: 100px 0 80px;
    text-align: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 40px;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 14px rgba(107, 70, 193, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(107, 70, 193, 0.5);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--primary-purple);
    color: var(--primary-purple);
}

.btn-outline {
    background: transparent;
    color: var(--primary-purple);
    border: 2px solid var(--primary-purple);
}

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

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

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

/* Platform Availability Section */
.platforms {
    padding: 80px 0;
    background-color: var(--background);
}

.platforms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.platform-card {
    text-align: center;
    padding: 40px 32px;
    background-color: var(--surface);
    border-radius: 20px;
    border: 2px solid var(--border);
    transition: all 0.3s ease;
}

.platform-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow);
    border-color: var(--primary-purple);
}

.platform-icon {
    margin: 0 auto 24px;
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(107, 70, 193, 0.3);
}

.platform-icon svg {
    color: white;
}

.platform-card h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.platform-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 16px;
}

/* App Screenshots Gallery */
.screenshots-gallery {
    padding: 80px 0;
    background-color: var(--surface);
}

.platform-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.platform-tab {
    padding: 12px 32px;
    background: transparent;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
}

.platform-tab:hover {
    border-color: var(--primary-purple);
    color: var(--primary-purple);
}

.platform-tab.active {
    background: var(--gradient-1);
    border-color: transparent;
    color: white;
}

.screenshots-viewer {
    position: relative;
}

.platform-screenshots {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    animation: fadeIn 0.5s ease;
}

.platform-screenshots.active {
    display: grid;
}

.screenshot-item {
    background: var(--background);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 24px var(--shadow);
    transition: all 0.3s ease;
}

.screenshot-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow);
}

.screenshot-item img {
    width: 100%;
    max-height: 500px;
    height: auto;
    object-fit: contain;
    display: block;
}

.screenshot-caption {
    padding: 20px;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--background);
}

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

/* Features with Screenshots */
.features-detailed {
    padding: 80px 0;
    background-color: var(--background);
}

.feature-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.feature-showcase:last-child {
    margin-bottom: 0;
}

.feature-showcase.reverse {
    direction: rtl;
}

.feature-showcase.reverse > * {
    direction: ltr;
}

.feature-content {
    padding: 20px 0;
}

.feature-number {
    display: inline-block;
    font-size: 14px;
    font-weight: 700;
    color: white;
    background: var(--gradient-1);
    padding: 8px 20px;
    border-radius: 20px;
    margin-bottom: 20px;
}

.feature-showcase h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.feature-showcase p {
    font-size: 18px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-left: 8px;
}

.feature-image {
    position: relative;
}

.feature-image img {
    width: 100%;
    max-height: 600px;
    height: auto;
    object-fit: contain;
    border-radius: 20px;
    box-shadow: 0 20px 60px var(--shadow);
    transition: all 0.3s ease;
}

.feature-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 24px 80px var(--shadow);
}

/* Sections */
section {
    padding: 80px 0;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

/* Features Section */
.features {
    background-color: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.feature-card {
    background-color: var(--background);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px var(--shadow);
    border-color: var(--primary-purple);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* How It Works */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    padding: 32px;
}

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(107, 70, 193, 0.3);
}

.step h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Metrics Section */
.metrics {
    background-color: var(--surface);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.metric-card {
    background-color: var(--background);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px var(--shadow);
}

.metric-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.metric-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 12px;
}

.metric-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Pricing Section */
.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    max-width: 1100px;
    margin: 0 auto;
}

.pricing-card {
    background-color: var(--surface);
    border: 2px solid var(--border);
    border-radius: 20px;
    padding: 40px;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 40px var(--shadow);
}

.pricing-card.featured {
    border-color: var(--primary-purple);
    background: linear-gradient(135deg, rgba(107, 70, 193, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.08) translateY(-8px);
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-1);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.price {
    font-size: 48px;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.price-period {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.savings {
    color: var(--secondary-pink);
    font-weight: 600;
    margin-bottom: 24px;
}

.features-list {
    list-style: none;
    text-align: left;
    margin: 32px 0;
}

.features-list li {
    padding: 12px 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
}

.features-list li:last-child {
    border-bottom: none;
}

/* CTA Section */
.cta {
    background: var(--gradient-bg);
    padding: 100px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 48px;
    font-weight: 800;
    color: white;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

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

.cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
    background-color: var(--surface);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.footer-logo img {
    border-radius: 12px;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-purple);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
}

.footer-bottom p {
    margin: 8px 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

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

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

    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .section-title {
        font-size: 32px;
    }

    .nav-links {
        display: none;
    }

    .features-grid,
    .metrics-grid,
    .pricing-cards {
        grid-template-columns: 1fr;
    }

    .feature-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
        margin-bottom: 60px;
    }

    .feature-showcase.reverse {
        direction: ltr;
    }

    .feature-showcase h3 {
        font-size: 24px;
    }

    .feature-showcase p {
        font-size: 16px;
    }

    .platform-screenshots {
        grid-template-columns: 1fr;
    }

    .pricing-card.featured {
        transform: scale(1);
    }

    .pricing-card.featured:hover {
        transform: translateY(-8px);
    }

    .theme-toggle {
        top: 10px;
        right: 10px;
        width: 44px;
        height: 44px;
    }

    .hero-stats {
        gap: 30px;
    }

    .cta-content h2 {
        font-size: 32px;
    }

    .cta-content p {
        font-size: 18px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }

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

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

.hero-content,
.feature-card,
.step,
.metric-card,
.pricing-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Smooth scrolling for Safari */
@media screen and (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}