/* ─── Reset & Base ─────────────────────────────────────────────────── */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg:          #08080C;
    --bg-card:     rgba(255,255,255,0.04);
    --bg-card-alt: rgba(255,255,255,0.025);
    --border:      rgba(255,255,255,0.07);
    --border-mid:  rgba(255,255,255,0.11);
    --text-primary:   #FFFFFF;
    --text-secondary: rgba(255,255,255,0.45);
    --text-muted:     rgba(255,255,255,0.22);
    --accent-green:   #34C759;
    --accent-red:     #FF3B30;
    --accent-dot:     rgba(255,255,255,0.22);
    --radius-card: 20px;
    --radius-btn:  100px;
    --max-width:   1120px;
    --max-narrow:  720px;
}

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

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--text-primary);
    text-decoration: none;
    transition: opacity 0.15s ease;
}

a:hover { opacity: 0.65; }

ul { list-style: none; }

/* ─── Layout ────────────────────────────────────────────────────────── */

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
}

.container-narrow {
    max-width: var(--max-narrow);
}

/* ─── Navigation ────────────────────────────────────────────────────── */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 0 28px;
    height: 60px;
    display: flex;
    align-items: center;
    background: rgba(8,8,12,0.72);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.site-nav {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.logo-dot {
    color: var(--accent-dot);
}

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

.nav-links a {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
}

.nav-links a:hover {
    color: var(--text-primary);
    opacity: 1;
}

/* ─── Hero ──────────────────────────────────────────────────────────── */

.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 28px 80px;
    background:
        radial-gradient(ellipse 60% 40% at 50% 0%, rgba(255,255,255,0.04) 0%, transparent 70%),
        var(--bg);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 580px;
}

.hero-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(80px, 14vw, 130px);
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1;
    color: var(--text-primary);
    margin-bottom: 28px;
}

.hero-dot {
    color: var(--accent-dot);
}

.hero-subtitle {
    font-size: 17px;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 44px;
}

.btn-appstore {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    background: var(--text-primary);
    color: var(--bg);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-btn);
    letter-spacing: -0.01em;
    transition: opacity 0.15s ease, transform 0.15s ease;
}

.btn-appstore:hover {
    opacity: 0.88;
    transform: translateY(-1px);
    color: var(--bg);
}

/* ─── Features ──────────────────────────────────────────────────────── */

.features {
    padding: 120px 0;
    border-bottom: 1px solid var(--border);
}

.section-title {
    font-size: clamp(30px, 5vw, 44px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 64px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 32px 28px;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.feature-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-mid);
}

.feature-icon {
    display: block;
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 18px;
    letter-spacing: -0.02em;
}

.feature-card h3 {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ─── Text Sections (Privacy / Terms) ──────────────────────────────── */

.text-section {
    padding: 100px 0;
    border-bottom: 1px solid var(--border);
}

.text-section-alt {
    background: rgba(255,255,255,0.015);
}

.section-eyebrow {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.section-title-left {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.text-meta {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 40px;
    letter-spacing: 0.01em;
}

.text-section p {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 20px;
}

.text-section h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin-top: 40px;
    margin-bottom: 10px;
}

.text-section h3:first-of-type {
    margin-top: 36px;
}

.text-section ul {
    list-style: none;
    margin-bottom: 20px;
}

.text-section ul li {
    font-size: 14.5px;
    color: var(--text-secondary);
    line-height: 1.75;
    padding-left: 18px;
    position: relative;
}

.text-section ul li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--text-muted);
}

.text-section a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    text-decoration-color: var(--border-mid);
}

.text-section a:hover {
    opacity: 0.7;
    text-decoration-color: var(--text-secondary);
}

.text-section strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* ─── Footer ────────────────────────────────────────────────────────── */

.site-footer {
    padding: 80px 0 40px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 64px;
    border-bottom: 1px solid var(--border);
}

.footer-brand .logo {
    display: block;
    font-size: 20px;
    margin-bottom: 14px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 18px;
}

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

.footer-links a {
    font-size: 13px;
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--text-primary);
    opacity: 1;
}

.footer-bottom {
    padding-top: 28px;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--text-muted);
}

/* ─── Responsive ────────────────────────────────────────────────────── */

@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 600px) {
    .nav-links {
        display: none;
    }

    .hero-title {
        font-size: 72px;
    }

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

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

    .text-section,
    .features {
        padding: 72px 0;
    }
}