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

:root {
  --bg-primary: #09090B;
  --bg-secondary: #18181B;
  --bg-card: #27272A80;
  --border: #ffffff0d;
  --border-accent: #006FEE20;
  --text-primary: #FFFFFF;
  --text-secondary: #A1A1AA;
  --text-muted: #71717A;
  --accent: #006FEE;
  --accent-glow: #006FEE40;
  --accent-secondary: #7c3aed;
  --gradient-start: #09090B;
  --gradient-end: #0D0D12;
  --radius: 12px;
  --radius-lg: 20px;
  --max-width: 1100px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: #3B9EFF;
}

img {
  max-width: 100%;
  display: block;
}

/* ── Utility ─────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* ── Background Effect ──────────────────────────────── */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, var(--accent-glow), transparent),
    radial-gradient(ellipse 60% 40% at 80% 50%, #7c3aed15, transparent);
  pointer-events: none;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

/* ── Nav ──────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  background: #09090bcc;
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.nav-brand .logo-mark {
  width: 32px;
  height: 32px;
  color: var(--accent);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--accent);
  color: var(--bg-primary) !important;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 10px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

/* ── Mobile nav toggle ──────────────────────────────── */
.nav-toggle {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
  transition: background var(--transition);
}

.nav-burger:hover {
  background: var(--bg-card);
}

.nav-burger span {
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text-primary);
  transition: transform var(--transition), opacity var(--transition);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 98;
  background: #00000080;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

/* ── Hero ─────────────────────────────────────────────── */
.hero {
  padding: 160px 0 100px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  backdrop-filter: blur(10px);
}

.hero-badge .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e80;
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

.hero-note {
  margin-top: 24px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.hero-badge .badge-sep {
  color: var(--text-muted);
}

#live-label {
  color: #22c55e;
  font-weight: 600;
}

.hero-badge .dot {
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 #22c55e80;
  }
  50% {
    box-shadow: 0 0 0 6px #22c55e00;
  }
}

/* ── Waveform ───────────────────────────────────────── */
.waveform-wrap {
  margin: 48px auto 0;
  max-width: 560px;
}

.waveform {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 56px;
}

.waveform span {
  width: 3px;
  border-radius: 3px;
  background: linear-gradient(to top, var(--accent), var(--accent-secondary));
  height: var(--amp, 20%);
  animation: wave var(--dur, 1.2s) ease-in-out infinite;
  animation-delay: var(--d, 0s);
}

@keyframes wave {
  0%,
  100% {
    height: calc(var(--amp, 20%) * 0.3);
  }
  50% {
    height: var(--amp, 90%);
  }
}

.waveform-caption {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 14px;
}

.wave-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
}

.wave-arrow {
  color: var(--accent);
  font-size: 1rem;
  animation: arrow-slide 1.6s ease-in-out infinite;
}

@keyframes arrow-slide {
  0%,
  100% {
    transform: translateX(0);
    opacity: 0.6;
  }
  50% {
    transform: translateX(6px);
    opacity: 1;
  }
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg-primary);
  box-shadow: 0 2px 20px var(--accent-glow);
}

.btn-primary:hover {
  box-shadow: 0 4px 30px var(--accent-glow);
  color: var(--bg-primary);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.btn i {
  width: 18px;
  height: 18px;
}

/* ── Section ──────────────────────────────────────────── */
.section {
  padding: 100px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

.section-header {
  margin-bottom: 60px;
}

.section-header.center {
  text-align: center;
}

.section-header.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.label-line {
  width: 24px;
  height: 1px;
  background: var(--accent);
}

/* ── Language Ticker ──────────────────────────────── */
.ticker-section {
  border-block: 1px solid var(--border);
  padding: 18px 0;
  background: var(--bg-secondary);
  overflow: hidden;
}

.ticker {
  overflow: hidden;
}

.ticker-track {
  display: flex;
  gap: 48px;
  white-space: nowrap;
  width: max-content;
  animation: ticker-scroll 45s linear infinite;
}

.ticker:hover .ticker-track {
  animation-play-state: paused;
}

.ticker-item {
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

@keyframes ticker-scroll {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ── Stats ─────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 56px;
}

.stat-block {
  padding: 28px 20px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), transform var(--transition);
}

.stat-block:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 8px;
}

/* ── Architecture ─────────────────────────────────── */
.arch {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 20px;
  align-items: center;
  margin-top: 56px;
}

.arch-card {
  padding: 28px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.arch-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, var(--accent-glow), transparent 70%);
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.arch-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-accent);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.arch-card:hover::before {
  opacity: 1;
}

.arch-mobile {
  border-color: #006FEE33;
}

.arch-worker {
  border-color: #7c3aed33;
}

.arch-ai {
  border-color: #006FEE44;
}

.arch-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.arch-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
  flex-shrink: 0;
}

.arch-ai .arch-dot {
  background: var(--accent-secondary);
  box-shadow: 0 0 10px var(--accent-secondary);
}

.arch-card p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.6;
}

.arch-sub {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-align: center;
}

.arch-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── Steps ─────────────────────────────────────────── */
.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 24px;
  align-items: start;
  margin-top: 56px;
}

.step {
  text-align: center;
}

.step-num {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 16px;
}

.step-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.step-icon i {
  width: 24px;
  height: 24px;
  color: #fff;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 260px;
  margin: 0 auto;
}

.step-line {
  width: 56px;
  height: 1px;
  margin-top: 70px;
  background: linear-gradient(to right, transparent, var(--border-accent), transparent);
}

/* ── Reveal on scroll ──────────────────────────────── */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html.js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .waveform span,
  .ticker-track,
  .wave-arrow,
  .hero-badge .dot {
    animation: none !important;
  }
}

/* ── Features Grid ──────────────────────────────────── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.feature-card {
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-2px);
}

.feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon i {
  width: 20px;
  height: 20px;
  color: var(--bg-primary);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Download CTA ──────────────────────────────────── */
.cta-section {
  padding: 100px 0;
}

.cta-box {
  padding: 60px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, var(--accent-glow), transparent 70%);
  opacity: 0.3;
  pointer-events: none;
}

.cta-box > * {
  position: relative;
  z-index: 1;
}

.cta-box h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

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

.version-badge {
  display: inline-block;
  margin-top: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Footer ──────────────────────────────────────────── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-text {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

/* ── Legal Pages ─────────────────────────────────────── */
.legal {
  padding: 140px 0 80px;
}

.legal h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.legal .legal-date {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.legal-content {
  max-width: 720px;
}

.legal-content h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 32px 0 12px;
  letter-spacing: -0.01em;
}

.legal-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 24px 0 8px;
}

.legal-content p,
.legal-content li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.legal-content ul {
  list-style: none;
  margin: 8px 0 16px;
}

.legal-content ul li {
  padding-left: 20px;
  position: relative;
  margin-bottom: 6px;
}

.legal-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.legal-content a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ── Changelog ────────────────────────────────────────── */
.changelog-list {
  max-width: 720px;
}

.changelog-entry {
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.changelog-entry:last-child {
  border-bottom: none;
}

.changelog-version {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.changelog-version h2 {
  font-size: 1.2rem;
  font-weight: 700;
}

.changelog-version .tag {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--accent);
  color: var(--bg-primary);
}

.changelog-date {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.changelog-entry ul {
  list-style: none;
}

.changelog-entry ul li {
  padding-left: 20px;
  position: relative;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.changelog-entry ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-secondary);
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    display: flex;
    position: fixed;
    top: 0;
    right: 0;
    height: 100dvh;
    width: min(78vw, 300px);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 100px 28px 32px;
    background: rgba(9, 9, 11, 0.94);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--transition), visibility var(--transition);
    z-index: 99;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 14px 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }

  .nav-burger {
    display: inline-flex;
    position: relative;
    z-index: 100;
  }

  .nav-toggle:checked ~ .nav-links {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-toggle:checked ~ .nav-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle:checked ~ .nav-burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle:checked ~ .nav-burger span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked ~ .nav-burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  body:has(#nav-toggle:checked) {
    overflow: hidden;
  }

  .hero {
    padding: 130px 0 60px;
  }

  .section {
    padding: 60px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .cta-section {
    padding: 60px 0;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .legal {
    padding: 110px 0 60px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .arch {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .arch-arrow {
    transform: rotate(90deg);
    font-size: 1.2rem;
  }

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

  .step-line {
    width: 1px;
    height: 32px;
    margin: 0 auto;
    background: linear-gradient(to bottom, transparent, var(--border-accent), transparent);
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero-actions,
  .cta-actions {
    flex-direction: column;
    align-items: center;
  }

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

  .stats-row {
    grid-template-columns: 1fr;
  }

  .nav-cta {
    padding: 8px 14px;
    font-size: 0.8rem;
  }
}