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

:root {
    --primary: #C2185B;
    --primary-dark: #8E0038;
    --primary-light: #F50057;
    --secondary: #7B1FA2;
    --gradient: linear-gradient(135deg, #C2185B 0%, #7B1FA2 100%);
    --gradient-hover: linear-gradient(135deg, #8E0038 0%, #6A1B9A 100%);
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    --bg-white: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-dark: #1A1A1A;
    --border: #E5E7EB;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 24px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--primary);
    background: rgba(194, 24, 91, 0.08);
}

.nav-link.active {
    color: var(--primary);
    background: rgba(194, 24, 91, 0.12);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    flex-direction: column;
    gap: 8px;
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.mobile-nav-link {
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
    color: var(--primary);
    background: rgba(194, 24, 91, 0.08);
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, #FFF0F5 0%, #F3E5F5 100%);
    overflow: hidden;
}

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

.hero-content {
    animation: fadeInUp 0.8s ease;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: var(--bg-white);
    border-radius: 100px;
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(194, 24, 91, 0.3);
}

.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(194, 24, 91, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-large {
    padding: 16px 36px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
}

.hero-image {
    animation: fadeInRight 0.8s ease;
}

.video-player-mockup {
    background: var(--gradient);
    border-radius: var(--radius-xl);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.5s ease;
}

.video-player-mockup:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.player-screen {
    background: linear-gradient(135deg, #2d1b3d 0%, #1a1a2e 100%);
    border-radius: var(--radius-md);
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    overflow: hidden;
}

.play-button {
    cursor: pointer;
    transition: transform 0.3s ease;
}

.play-button:hover {
    transform: scale(1.1);
}

.player-controls {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-sm);
    padding: 12px;
}

.progress-bar {
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
    position: relative;
    overflow: hidden;
}

.progress-bar::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 40%;
    background: white;
    border-radius: 2px;
    animation: progress 2s ease-in-out infinite;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

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

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

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: var(--radius-md);
    color: white;
    margin-bottom: 20px;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* CTA Section */
.cta {
    padding: 100px 0;
    background: var(--gradient);
    color: white;
}

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

.cta-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 32px;
}

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

.cta .btn-primary:hover {
    background: var(--bg-light);
}

/* Page Hero */
.page-hero {
    padding: 80px 0 40px;
    background: linear-gradient(135deg, #FFF0F5 0%, #F3E5F5 100%);
    text-align: center;
}

.page-title {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 12px;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-description {
    font-size: 16px;
    color: var(--text-secondary);
}

/* Download Section */
.download-section {
    padding: 80px 0;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 80px;
}

.download-card {
    padding: 40px;
    background: var(--bg-white);
    border: 2px solid var(--border);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

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

.download-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 96px;
    height: 96px;
    background: var(--gradient);
    border-radius: var(--radius-lg);
    color: white;
    margin-bottom: 24px;
}

.download-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.download-description {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 24px;
}

.version,
.size {
    padding: 4px 12px;
    background: var(--bg-light);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

/* Requirements */
.requirements-section {
    margin-bottom: 80px;
}

.requirements-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 40px;
}

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

.requirement-card {
    padding: 32px;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
}

.requirement-platform {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--primary);
}

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

.requirement-list li {
    padding-left: 28px;
    position: relative;
    color: var(--text-secondary);
}

.requirement-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 700;
}

/* Installation Guide */
.installation-guide {
    background: var(--bg-light);
    padding: 60px;
    border-radius: var(--radius-xl);
}

.guide-title {
    font-size: 32px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
}

.guide-steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.guide-step {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.step-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 20px;
}

.step-content {
    flex: 1;
}

.step-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.step-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Legal Content */
.legal-content {
    padding: 60px 0 80px;
}

.legal-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

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

.legal-heading {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.legal-subheading {
    font-size: 20px;
    font-weight: 600;
    margin: 20px 0 12px;
    color: var(--text-primary);
}

.legal-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.legal-list {
    list-style: none;
    margin: 16px 0;
    padding-left: 0;
}

.legal-list li {
    padding: 8px 0 8px 32px;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
}

.legal-list li::before {
    content: '•';
    position: absolute;
    left: 12px;
    color: var(--primary);
    font-weight: 700;
    font-size: 20px;
}

.legal-footer {
    margin-top: 60px;
    padding-top: 32px;
    border-top: 2px solid var(--border);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 60px 0 32px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    margin-bottom: 16px;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.7;
}

.footer-links {
    display: flex;
    gap: 60px;
}

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

.footer-heading {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.9);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: color 0.2s ease;
}

.footer-link:hover {
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 14px;
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes progress {
    0%, 100% {
        width: 40%;
    }
    50% {
        width: 70%;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        display: none;
    }

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

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

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

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

    .hero-image {
        order: -1;
    }

    .video-player-mockup {
        transform: none;
    }

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

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

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

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

    .footer-links {
        gap: 40px;
    }

    .installation-guide {
        padding: 40px 24px;
    }

    .guide-step {
        flex-direction: column;
    }

    .legal-heading {
        font-size: 22px;
    }
}