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

:root {
    --primary: #6C5CE7;
    --primary-dark: #5A4BD1;
    --primary-light: #A29BFE;
    --accent: #00CEC9;
    --bg: #0A0A0F;
    --bg-card: #12121A;
    --bg-card-hover: #1A1A25;
    --text: #FFFFFF;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    --border: #1F1F2E;
    --gradient: linear-gradient(135deg, var(--primary), var(--accent));
    --radius: 12px;
    --radius-lg: 20px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Typography === */
h1 { font-size: clamp(2.5rem, 6vw, 4rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.02em; }
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
h4 { font-size: 0.875rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 12px; }

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

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}

.btn-sm { padding: 8px 18px; font-size: 0.875rem; }
.btn-lg { padding: 16px 32px; font-size: 1rem; }

.btn-primary {
    background: var(--gradient);
    color: white;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-secondary {
    background: var(--bg-card);
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--primary-light); }

/* === Nav === */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient);
    border-radius: 10px;
    font-weight: 800;
    font-size: 0.8rem;
    color: white;
}

.logo-text { font-weight: 700; font-size: 1.125rem; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }

/* === Hero === */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(ellipse, rgba(108, 92, 231, 0.15), transparent 70%);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(108, 92, 231, 0.15);
    border: 1px solid rgba(108, 92, 231, 0.3);
    border-radius: 100px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 20px auto 36px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: 48px;
    justify-content: center;
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat { text-align: center; }
.stat-value { display: block; font-size: 1.75rem; font-weight: 800; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.stat-label { font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; }

/* === Section Header === */
.section-header {
    text-align: center;
    max-width: 560px;
    margin: 0 auto 64px;
}
.section-header p {
    color: var(--text-secondary);
    margin-top: 16px;
    font-size: 1.0625rem;
}

/* === Features === */
.features {
    padding: 120px 0;
}

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

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}
.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(108, 92, 231, 0.3);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.feature-card h3 { margin-bottom: 8px; }
.feature-card p { color: var(--text-secondary); font-size: 0.9375rem; line-height: 1.6; }

/* === How It Works === */
.how-it-works {
    padding: 120px 0;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.step { text-align: center; }

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--gradient);
    border-radius: 16px;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 20px;
}

.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-secondary); font-size: 0.9375rem; }

/* === Pricing === */
.pricing {
    padding: 120px 0;
}

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

.pricing-card {
    padding: 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    text-align: center;
    position: relative;
}

.pricing-featured {
    border-color: var(--primary);
    background: linear-gradient(180deg, rgba(108, 92, 231, 0.08), var(--bg-card));
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pricing-tier {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.pricing-period {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 28px;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    border-bottom: 1px solid var(--border);
}
.pricing-features li:last-child { border-bottom: none; }

.pricing-card .btn { width: 100%; justify-content: center; }

/* === Download === */
.download {
    padding: 120px 0;
    text-align: center;
}

.download-content {
    max-width: 600px;
    margin: 0 auto;
}

.download-content p {
    color: var(--text-secondary);
    font-size: 1.0625rem;
    margin-top: 16px;
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.store-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    transition: all 0.2s ease;
}
.store-badge:hover { border-color: var(--primary-light); background: var(--bg-card-hover); }

.store-label { display: block; font-size: 0.6875rem; color: var(--text-muted); font-weight: 500; }
.store-name { display: block; font-size: 1.125rem; font-weight: 700; }

/* === Footer === */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 12px;
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}
.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links a:not(.btn) { display: none; }

    .hero { padding: 120px 0 80px; }
    .hero-stats { gap: 24px; }

    .features-grid,
    .steps,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .steps { gap: 40px; }

    .footer-inner { flex-direction: column; gap: 32px; }
    .footer-links { gap: 32px; flex-wrap: wrap; }
}

@media (max-width: 480px) {
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions .btn { width: 100%; justify-content: center; }
    .download-buttons { flex-direction: column; align-items: center; }
    .store-badge { width: 100%; justify-content: center; }
}