:root {
    --bg-color: #000;
    --text-color: #fff;
    --primary: #ef2bc1;
    --secondary: #00b9e5;
    --accent: #e3e82b;
    --surface: #111;
    --border: #282828;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --container-width: 1200px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg-color); color: var(--text-color); font-family: var(--font-family); line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; transition: color .2s, background .2s, transform .2s; }
img { display: block; max-width: 100%; }
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }
.site-nav { padding: 15px 0; border-bottom: 1px solid var(--border); }
.site-nav-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.site-brand { font-weight: 800; color: #fff; }
.language-switcher { display: flex; gap: 8px; align-items: center; font-size: .9rem; }
.language-switcher a, .language-switcher span { border: 1px solid #3a3a3a; border-radius: 999px; padding: 6px 11px; }
.language-switcher .active { background: #fff; color: #000; border-color: #fff; font-weight: 700; }
section { padding: 60px 0; }
h1, h2, h3 { font-weight: 700; line-height: 1.1; margin-bottom: 1rem; }
h2 { font-size: 2rem; margin-bottom: 1.5rem; text-align: center; }
h3 { font-size: 1.25rem; color: var(--secondary); }
p { color: #ccc; margin-bottom: 1rem; }
header { padding: 80px 0 60px; position: relative; overflow: hidden; }
.hero-wrapper { display: flex; flex-direction: column; gap: 50px; align-items: center; }
.hero-content { display: flex; flex-direction: column; align-items: center; text-align: center; }
.app-icon { width: 100px; height: 100px; border-radius: 22px; margin-bottom: 24px; box-shadow: 0 10px 30px rgba(0,0,0,.5); border: 1px solid #222; }
.brand-title { font-size: 3rem; line-height: 1.05; margin-bottom: 12px; font-weight: 800; letter-spacing: -.03em; text-transform: uppercase; }
.text-blue { color: var(--secondary); }
.text-pink { color: var(--primary); }
.hero-tagline { font-size: 1.5rem; color: #fff; font-weight: 600; margin-bottom: 24px; line-height: 1.3; }
.hero-description { font-size: 1.125rem; max-width: 620px; margin: 0 auto; color: #e0e0e0; }
.btn-group { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; align-items: center; }
.hero-visual { position: relative; z-index: 1; }
.phone-mockup { width: 280px; margin: 0 auto; border-radius: 40px; overflow: hidden; box-shadow: 0 25px 55px rgba(0,185,229,.14); }
#screenshots { background: var(--surface); border-top: 1px solid #1d1d1d; border-bottom: 1px solid #1d1d1d; }
.section-desc { max-width: 650px; margin: 0 auto 34px; text-align: center; }
.screenshot-scroller { display: flex; gap: 24px; overflow-x: auto; padding: 8px 4px 24px; scroll-snap-type: x mandatory; scrollbar-color: #333 transparent; }
.screenshot-card { min-width: 240px; width: 240px; border-radius: 28px; overflow: hidden; scroll-snap-align: center; box-shadow: 0 12px 30px rgba(0,0,0,.45); }
.features-grid { display: grid; grid-template-columns: 1fr; gap: 20px; }
.feature-card { background: var(--surface); padding: 28px; border-radius: 20px; border: 1px solid #222; }
.feature-tag { display: inline-block; color: var(--accent); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; margin-bottom: 14px; }
#help-articles { background: var(--surface); }
.help-list { max-width: 760px; margin: 0 auto; list-style: none; display: grid; gap: 12px; }
.help-list a { display: block; padding: 18px 20px; border: 1px solid #303030; border-radius: 14px; color: var(--secondary); background: #0b0b0b; font-weight: 600; }
.help-list a:hover { border-color: var(--secondary); color: #fff; }
footer { padding: 44px 0; text-align: center; border-top: 1px solid #222; font-size: .9rem; }
footer a { color: var(--secondary); }
@media (min-width: 768px) {
    .hero-wrapper { flex-direction: row; justify-content: space-between; }
    .hero-content { flex: 1; align-items: flex-start; text-align: left; }
    .hero-description { margin: 0 0 32px; }
    .btn-group { align-items: flex-start; margin-top: 0; }
    .hero-visual { flex: 0 0 42%; display: flex; justify-content: center; }
    .features-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 520px) {
    .brand-title { font-size: 2.35rem; }
    header { padding-top: 56px; }
    .language-switcher a, .language-switcher span { padding: 5px 9px; }
}