:root {
  --bg: #eef1f8;
  --bg-accent: #dfe8ff;
  --surface: rgba(255, 255, 255, 0.78);
  --text: #1d1d1f;
  --muted: #5c5c66;
  --accent: #0071e3;
  --accent-hover: #0077ed;
  --border: rgba(0, 0, 0, 0.08);
  --radius: 18px;
  --shadow: 0 24px 60px rgba(15, 23, 42, 0.14);
  --max: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0b10;
    --bg-accent: #1a2240;
    --surface: rgba(28, 28, 32, 0.82);
    --text: #f5f5f7;
    --muted: #a1a1a6;
    --border: rgba(255, 255, 255, 0.1);
    --shadow: 0 28px 70px rgba(0, 0, 0, 0.55);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(90, 200, 250, 0.35), transparent 55%),
    radial-gradient(ellipse 60% 45% at 95% 5%, rgba(88, 86, 214, 0.28), transparent 50%),
    radial-gradient(ellipse 70% 40% at 50% 100%, var(--bg-accent), transparent 60%),
    var(--bg);
  min-height: 100vh;
}

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

a:hover {
  text-decoration: underline;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px 80px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px) saturate(1.2);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--border);
}

.site-header .inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 650;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.12),
    0 10px 24px rgba(0, 113, 227, 0.22);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  font-size: 0.92rem;
}

nav a {
  color: var(--muted);
}

nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

/* Hero with 3D visual stack */
.hero-stage {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 32px 40px;
  align-items: center;
  padding: 36px 0 56px;
}

@media (max-width: 900px) {
  .hero-stage {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    min-height: 340px;
  }
}

.hero-copy .lang-switch {
  margin-bottom: 12px;
}

.hero-copy h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4.5vw, 2.85rem);
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.hero-copy .lead {
  margin: 0 0 20px;
  font-size: 1.12rem;
  color: var(--muted);
  max-width: 28em;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.pill {
  padding: 6px 13px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--muted);
  backdrop-filter: blur(8px);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 28px rgba(0, 113, 227, 0.35);
}

.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
  color: #fff;
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  text-decoration: none;
}

.hero-promo-3d {
  margin: 0;
  border-radius: calc(var(--radius) + 6px);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  background: #0a0b12;
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.45s ease;
}

.hero-promo-3d:hover {
  transform: perspective(1200px) rotateY(-1deg) rotateX(0deg);
}

.hero-promo-3d img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.hero-visual {
  position: relative;
  min-height: 380px;
  perspective: 1400px;
}

.icon-float {
  position: absolute;
  top: 0;
  left: 8%;
  z-index: 3;
  transform: translateZ(48px);
  animation: float-icon 5s ease-in-out infinite;
}

.icon-float img {
  width: 112px;
  height: 112px;
  border-radius: 24px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.65) inset,
    0 18px 40px rgba(0, 113, 227, 0.35),
    0 40px 80px rgba(88, 86, 214, 0.25);
}

@keyframes float-icon {
  0%, 100% { transform: translateY(0) translateZ(48px) rotate(-4deg); }
  50% { transform: translateY(-10px) translateZ(56px) rotate(2deg); }
}

.device-shot {
  position: absolute;
  margin: 0;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, white 70%, var(--border));
  background: #111;
  box-shadow: var(--shadow);
  transform-style: preserve-3d;
}

.device-shot img {
  display: block;
  width: 100%;
  height: auto;
  vertical-align: middle;
}

.shot-back {
  right: 0;
  top: 36px;
  width: 88%;
  transform: rotateY(-14deg) rotateX(4deg) translateZ(0);
  opacity: 0.92;
}

.shot-front {
  left: 0;
  bottom: 0;
  width: 78%;
  transform: rotateY(10deg) rotateX(-2deg) translateZ(32px);
  z-index: 2;
}

.shot-back::after,
.shot-front::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, transparent 42%);
  border-radius: inherit;
}

/* Showcase band */
.showcase {
  margin-bottom: 28px;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
}

.showcase-inner {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: rotateX(2deg);
  transform-style: preserve-3d;
}

.showcase-inner img {
  display: block;
  width: 100%;
  height: auto;
}

.showcase-caption {
  position: absolute;
  left: 20px;
  bottom: 18px;
  padding: 10px 16px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.62);
  color: #fff;
  font-size: 0.9rem;
  backdrop-filter: blur(10px);
}

.showcase-caption strong {
  display: block;
  font-size: 1rem;
}

/* Feature rows with image */
.feature-show {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  margin-bottom: 24px;
}

@media (max-width: 760px) {
  .feature-show {
    grid-template-columns: 1fr;
  }

  .feature-show.reverse .feature-shot {
    order: 0;
  }
}

.feature-show.reverse .feature-copy {
  order: 1;
}

.feature-shot {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow:
    0 16px 40px rgba(15, 23, 42, 0.12),
    0 4px 12px rgba(0, 0, 0, 0.06);
  transform: perspective(900px) rotateY(-6deg);
}

.feature-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.feature-show.reverse .feature-shot {
  transform: perspective(900px) rotateY(6deg);
}

.feature-copy h3 {
  margin: 0 0 10px;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.feature-copy p {
  margin: 0;
  color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.06);
  padding: 28px 32px;
  margin-bottom: 24px;
  backdrop-filter: blur(12px);
}

.card h2 {
  margin: 0 0 16px;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.compare th,
.compare td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.compare th {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.compare tr:last-child td {
  border-bottom: none;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.feature {
  padding: 16px 18px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent) 5%, var(--surface));
  border: 1px solid var(--border);
}

.feature strong {
  display: block;
  margin-bottom: 6px;
}

.site-footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.88rem;
  color: var(--muted);
}

.lang-switch {
  font-size: 0.85rem;
}

.lang-switch a {
  color: var(--muted);
  margin-right: 10px;
}

.lang-switch a.active {
  color: var(--text);
  font-weight: 600;
}

kbd {
  display: inline-block;
  padding: 2px 7px;
  border-radius: 6px;
  font-size: 0.82em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface);
  border: 1px solid var(--border);
}

.prose h1 {
  margin-top: 0;
}

.prose h2 {
  margin-top: 1.6em;
}