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

:root {
  --bg: #000;
  --text: #fff;
  --text-2: rgba(255,255,255,0.6);
  --text-3: rgba(255,255,255,0.35);
  --border: rgba(255,255,255,0.1);
  --surface: #111;
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'SF Pro Display', sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ─── NAV ─── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center;
  padding: 0 40px; height: 56px;
}
.nav-logo { display: flex; align-items: center; gap: 8px; margin-right: 16px; }
.nav-logo svg { width: 24px; height: 24px; }
.nav-logo span { font-size: 17px; font-weight: 600; letter-spacing: -0.3px; }
.nav-lang { flex: 1; }
.nav-links { display: flex; gap: 4px; flex: none; margin-left: auto; }
.nav-links a {
  font-size: 14px; color: var(--text-2); padding: 6px 14px; border-radius: 6px;
  transition: color 0.15s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.nav-right a { font-size: 14px; color: var(--text-2); transition: color 0.15s; cursor: pointer; }
.nav-right a:hover { color: var(--text); }
.nav-cta {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 14px; color: var(--text) !important;
  padding: 7px 16px; border-radius: 980px;
  border: 1px solid var(--border); transition: background 0.15s;
}
.nav-cta:hover { background: rgba(255,255,255,0.08); }
.nav-hamburger { display: none; background: none; border: none; color: var(--text); cursor: pointer; }

/* ─── PAGE ─── */
.page { max-width: 1200px; margin: 0 auto; padding: 0 40px; }

/* ─── HERO ─── */
.hero { padding: 140px 0 80px; }
.hero-split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hero-left {}
.hero-left h1 {
  font-size: 52px; font-weight: 700; letter-spacing: -2px;
  line-height: 1.08; margin-bottom: 20px;
}
.hero-left p {
  font-size: 18px; color: var(--text-2); line-height: 1.65;
  margin-bottom: 32px; font-weight: 300; max-width: 440px;
}
.hero-actions { display: flex; gap: 12px; }
.hero-right { position: relative; }
.hero-right img {
  width: 100%; border-radius: 12px;
  box-shadow: 0 20px 80px rgba(0,0,0,0.6);
  border: 1px solid rgba(255,255,255,0.08);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 12px 24px; border-radius: 980px;
  font-size: 15px; font-weight: 500;
  border: none; cursor: pointer; transition: all 0.15s;
}
.btn-white { background: #fff; color: #000; }
.btn-white:hover { background: #e5e5e5; }
.btn-outline { background: none; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { background: rgba(255,255,255,0.06); }
.btn-small { padding: 8px 18px; font-size: 13px; }

/* ─── SECTION ─── */
.section { padding: 80px 0; }
.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 32px;
}
.section-title { font-size: 28px; font-weight: 600; letter-spacing: -0.5px; }
.section-more { font-size: 14px; color: var(--text-2); }
.section-more:hover { color: var(--text); }

/* ─── CARD GRID ─── */
.card-grid { display: grid; gap: 20px; }
.card-grid-3 { grid-template-columns: repeat(3, 1fr); }
.card-grid-4 { grid-template-columns: repeat(4, 1fr); }
.card-grid-2 { grid-template-columns: repeat(2, 1fr); }
.card { border-radius: 16px; overflow: hidden; transition: transform 0.2s; }
.card:hover { transform: translateY(-3px); }
.card-visual {
  width: 100%; aspect-ratio: 4/3;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; border-radius: 16px;
}
.card-visual img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 16px 0; }
.card-body h3 { font-size: 16px; font-weight: 500; line-height: 1.4; margin-bottom: 6px; }
.card-meta { font-size: 13px; color: var(--text-3); display: flex; gap: 12px; }

/* ─── FEATURE BLOCKS ─── */
.feature-block {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center;
  padding: 80px 0; border-top: 1px solid var(--border);
}
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-label {
  font-size: 13px; color: var(--text-3); text-transform: uppercase;
  letter-spacing: 1.5px; margin-bottom: 12px;
}
.feature-text h2 {
  font-size: 36px; font-weight: 600; letter-spacing: -1px;
  line-height: 1.15; margin-bottom: 16px;
}
.feature-text p { font-size: 16px; color: var(--text-2); line-height: 1.7; }
.feature-text ul { list-style: none; margin-top: 20px; }
.feature-text ul li {
  font-size: 14px; color: var(--text-2); padding: 6px 0;
  display: flex; align-items: center; gap: 10px;
}
.feature-text ul li::before {
  content: ''; width: 5px; height: 5px; border-radius: 50%;
  background: var(--text-3); flex-shrink: 0;
}
.feature-visual {
  border-radius: 16px; overflow: hidden;
  aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}
.feature-visual img { width: 100%; height: 100%; object-fit: cover; border-radius: 16px; }

/* ─── STATS ─── */
.stats-row { display: flex; gap: 60px; padding: 60px 0; border-top: 1px solid var(--border); }
.stat { flex: 1; }
.stat-number { font-size: 48px; font-weight: 700; letter-spacing: -2px; }
.stat-label { font-size: 14px; color: var(--text-2); margin-top: 4px; }

/* ─── PRICING ─── */
.pricing-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--border); border-radius: 16px; overflow: hidden;
}
.price-col { background: var(--bg); padding: 32px 24px; }
.price-col.highlight { background: var(--surface); }
.price-name { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.price-amount { font-size: 40px; font-weight: 700; letter-spacing: -1.5px; margin: 8px 0; }
.price-unit { font-size: 14px; font-weight: 400; color: var(--text-2); }
.price-desc { font-size: 13px; color: var(--text-3); margin-bottom: 24px; }
.price-list { list-style: none; }
.price-list li { font-size: 14px; color: var(--text-2); padding: 6px 0; border-top: 1px solid rgba(255,255,255,0.05); }

/* ─── DOWNLOAD ─── */
.dl-hero { padding: 180px 0 100px; text-align: center; }
.dl-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }
.dl-card { background: var(--surface); border-radius: 16px; padding: 40px 24px; text-align: center; }
.dl-card h3 { font-size: 20px; font-weight: 600; margin: 16px 0 4px; }
.dl-card .version { font-size: 13px; color: var(--text-3); margin-bottom: 20px; }
.dl-card .platform-icon { opacity: 0.7; }

/* ─── FOOTER ─── */
footer { border-top: 1px solid var(--border); padding: 32px 0; margin-top: 40px; }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 40px;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-left { font-size: 13px; color: var(--text-3); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: var(--text-3); transition: color 0.15s; }
.footer-links a:hover { color: var(--text); }

/* ─── LANG SWITCH ─── */
.lang-switch {
  font-size: 13px; color: var(--text-3); cursor: pointer;
  padding: 4px 10px; border-radius: 6px; border: 1px solid var(--border);
  background: none; transition: all 0.15s;
}
.lang-switch:hover { color: var(--text); border-color: rgba(255,255,255,0.2); }

/* ─── REVEAL ─── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s, transform 0.6s; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-hamburger { display: block; }
  .nav-lang { display: none; }
  .page { padding: 0 20px; }
  .nav-inner { padding: 0 16px; }
  .footer-inner { padding: 0 20px; }
  .hero-split { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-left h1 { font-size: 36px; }
  .hero-left .tagline { margin-left: auto; margin-right: auto; }
  .hero-left .hero-actions { justify-content: center; }
  .card-grid-3, .card-grid-4 { grid-template-columns: 1fr 1fr; }
  .feature-block { grid-template-columns: 1fr; gap: 24px; }
  .feature-block.reverse { direction: ltr; }
  .pricing-grid { grid-template-columns: 1fr 1fr !important; }
  .dl-cards { grid-template-columns: 1fr; max-width: 320px; margin-left: auto; margin-right: auto; }
  .stats-row { flex-direction: column; gap: 24px; }
  .mission-split { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 600px) {
  .nav-inner { padding: 0 12px; height: 48px; }
  .nav-logo span { font-size: 15px; }
  .nav-cta { font-size: 12px !important; padding: 6px 12px !important; }
  .page { padding: 0 16px; }
  .hero-left h1 { font-size: 28px; letter-spacing: -1.5px; }
  .hero-left .tagline { font-size: 15px; }
  .btn { padding: 10px 20px; font-size: 14px; }
  .card-grid-3, .card-grid-4 { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr !important; }
  .hl-card { padding: 24px 20px; }
  .section-title { font-size: 22px; }
  .section-header { flex-direction: column; gap: 4px; }
  .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
  .footer-inner { padding: 0 16px; }
}