:root {
  --accent: #a855f7;
  --accent-glow: rgba(168, 85, 247, 0.4);
  --bg: #030303;
  --card: #0f0f12;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f8fafc;
  --text-dim: #94a3b8;
  
  color-scheme: dark;
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

body {
  overflow-x: hidden;
}

/* Background Ambient Glow */
body::before {
  content: '';
  position: fixed;
  top: -10%;
  left: -40%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 40%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}
body::after {
  content: '';
  position: fixed;
  top: -10%;
  left: 40%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 40%);
  filter: blur(80px);
  z-index: -1;
  pointer-events: none;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

.topbar {
  align-items: center;
  background: rgba(3, 3, 3, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  height: 75px;
  padding: 0 5vw;
  position: sticky;
  top: 0;
  z-index: 100;
}

.brand {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  border-radius: 10px;
  color: white;
  display: grid;
  place-items: center;
  height: 36px;
  width: 36px;
  font-size: 18px;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.brand-logo {
  max-height: 65px;
  width: 100%;
  max-width: 400px;
  height: auto;
  border-radius: 8px;
  object-fit: contain;
}

nav {
  display: flex;
  gap: 32px;
}

nav a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 600;
}

nav a:hover {
  color: var(--text);
}

.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 120px 5vw 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.eyebrow {
  background: rgba(168, 85, 247, 0.1);
  border: 1px solid var(--accent);
  border-radius: 20px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  padding: 6px 16px;
  text-transform: uppercase;
  margin-bottom: 24px;
  position: relative;
  bottom: 30px;
}

h1 {
  font-size: clamp(36px, 12vw, 96px);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1.3;
  margin-bottom: 32px;
  background: linear-gradient(to bottom, #fff 40%, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  color: var(--text-dim);
  font-size: 20px;
  max-width: 600px;
  margin-bottom: 40px;
}

.actions {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
  justify-content: center;
}

.download-note {
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
  margin: 14px 0 0;
}

.btn.is-disabled {
  opacity: 0.62;
  pointer-events: none;
}

.btn {
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
  font-size: 16px;
  padding: 16px 32px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: #fff;
  color: #000;
  box-shadow: 0 10px 20px rgba(255,255,255,0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 30px rgba(255,255,255,0.15);
}

.btn-secondary {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: #fff;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
}

.download-panel {
  background: rgba(15, 15, 18, 0.92);
  border: 1px solid var(--border);
  border-radius: 20px;
  margin: 0 0 56px;
  padding: 24px;
  text-align: left;
  width: min(100%, 860px);
}

.download-panel-header {
  align-items: center;
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr auto;
}

.download-panel h2 {
  font-size: clamp(22px, 4vw, 34px);
  letter-spacing: -0.5px;
  margin: 4px 0 8px;
}

.download-panel p {
  color: var(--text-dim);
}

.download-kicker {
  color: var(--accent);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}

.apk-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 20px;
}

.apk-option {
  background: #07070a;
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-height: 132px;
  padding: 16px;
}

.apk-option:hover {
  border-color: rgba(168, 85, 247, 0.55);
  transform: translateY(-1px);
}

.apk-option.is-recommended {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(168, 85, 247, 0.2), 0 18px 44px rgba(0, 0, 0, 0.32);
}

.apk-option.is-recommended::before {
  color: var(--accent);
  content: 'Recommended';
  font-size: 10px;
  font-weight: 900;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.apk-option.is-disabled {
  opacity: 0.48;
  pointer-events: none;
}

.apk-name {
  color: var(--text);
  font-size: 16px;
  font-weight: 900;
}

.apk-desc {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.4;
}

.apk-state {
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  margin-top: auto;
}

.ios-note {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
  margin-top: 16px;
  padding: 12px 14px;
}

.ios-note strong {
  color: var(--text);
}

.hero-visual {
  width: 100%;
  max-width: 900px;
  border-radius: 24px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.05) 0%, transparent 100%);
  padding: 12px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.5);
}

.hero-visual img {
  width: 100%;
  border-radius: 16px;
  display: block;
}

.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 16px;
}

.section-title p {
  color: var(--text-dim);
  font-size: 18px;
}

.connect-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 32px;
  margin: 40px 5vw;
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 60px;
  align-items: center;
}

.session-card, .chrome-btn:hover {
  background: #000;
  border: 1px solid var(--accent);
  border-radius: 24px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
  box-shadow: 0 0 40px var(--accent-glow);
}

.chrome-btn:hover {
  padding: 16px 32px;
  transition: all ease;
}

.session-card span {
  font-size: 12px;
  font-weight: 800;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.session-card strong {
  font-size: 42px;
  font-weight: 900;
  letter-spacing: 2px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 80px 5vw;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 40px;
  transition: border-color 0.3s ease;
}

.card:hover {
  border-color: rgba(255,255,255,0.2);
}

.step-num {
  width: 40px;
  height: 40px;
  background: var(--accent);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 900;
  margin-bottom: 24px;
}

pre {
  background: #000;
  padding: 16px;
  border-radius: 12px;
  font-family: monospace;
  font-size: 13px;
  color: var(--accent);
  margin-top: 20px;
}

footer {
  padding: 60px 5vw;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  color: var(--text-dim);
  font-size: 14px;
}

/* Documentation Section */
.docs-section {
  padding: 80px 5vw;
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid var(--border);
}

.docs-container {
  max-width: 900px;
  margin: 0 auto;
}

.docs-container h2 {
  font-size: 40px;
  font-weight: 800;
  margin-bottom: 40px;
  text-align: center;
}

.doc-block {
  margin-bottom: 32px;
  background: var(--card);
  padding: 32px;
  border-radius: 16px;
  border: 1px solid var(--border);
}

.doc-block h3 {
  color: var(--accent);
  margin-bottom: 16px;
  font-size: 20px;
}

.doc-block p, .doc-block li {
  color: var(--text-dim);
  margin-bottom: 12px;
  line-height: 1.6;
}

.doc-block ol {
  padding-left: 20px;
}

@media (max-width: 900px) {
  .connect-panel, .grid {
    grid-template-columns: 1fr;
  }
  .connect-panel {
    padding: 40px 5vw;
    gap: 30px;
  }
  .hero {
    padding-top: 60px;
  }
  .topbar {
    height: auto;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
  }
}

@media (max-width: 600px) {
  footer {
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
  }
  .actions {
    flex-direction: column;
    width: 100%;
  }
  .actions .btn {
    width: 100%;
    justify-content: center;
  }
  .download-panel-header,
  .apk-grid {
    grid-template-columns: 1fr;
  }
  .download-panel-header .btn {
    justify-content: center;
    width: 100%;
  }
}