:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --text: #0f172a;
  --muted: #64748b;
  --line: #dbe2ea;
  --primary: #0b5ed7;
  --primary-strong: #1d4ed8;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at top, #eaf1fb 0%, var(--bg) 46%, var(--bg) 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(1040px, 92vw);
  margin: 0 auto;
}

.hero {
  background: linear-gradient(135deg, #0f172a, #1f3a67);
  color: #ffffff;
  padding: 42px 0 28px;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.35), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  gap: 18px;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-inner.compact {
  grid-template-columns: 1fr;
}

.hero-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-content {
  display: grid;
  gap: 14px;
  max-width: 560px;
}

.hero-media {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  padding: 12px;
  backdrop-filter: blur(6px);
  box-shadow: 0 14px 34px rgba(2, 6, 23, 0.32);
}

.app-logo {
  width: 68px;
  height: 68px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(2, 6, 23, 0.35);
}

h1 {
  margin: 0;
  font-size: clamp(1.7rem, 2.4vw, 2.1rem);
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 4px 0 0;
  color: #d2deee;
  font-size: 0.98rem;
}

.brand-text {
  text-align: left;
}

.quick-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-links a {
  color: #edf3ff;
  text-decoration: none;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  padding: 7px 12px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background-color 120ms ease;
}

.quick-links a:hover {
  background: rgba(255, 255, 255, 0.18);
}

.lang-switch {
  justify-self: start;
  display: flex;
  background: rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 5px;
  gap: 4px;
}

.lang-btn {
  border: 0;
  padding: 8px 14px;
  border-radius: 999px;
  background: transparent;
  color: #e2e8f0;
  cursor: pointer;
  font-weight: 600;
  transition:
    background-color 120ms ease,
    color 120ms ease;
}

.lang-btn.active {
  background: #ffffff;
  color: #0b1d3b;
}

.onboarding-showcase {
  margin-top: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  align-items: stretch;
}

.onboarding-shot {
  width: 100%;
  height: 190px;
  object-fit: cover;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  box-shadow: 0 12px 24px rgba(2, 6, 23, 0.28);
  background: rgba(255, 255, 255, 0.08);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.onboarding-shot:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 30px rgba(2, 6, 23, 0.34);
}

.sections {
  display: grid;
  gap: 20px;
  margin: 26px auto;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.info-card {
  background: radial-gradient(circle at top left, rgba(15, 23, 42, 0.05), rgba(15, 23, 42, 0.02)), #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 22px;
  padding: 24px;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}

.info-card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 22px;
  background: linear-gradient(135deg, rgba(14, 116, 144, 0.08), rgba(99, 102, 241, 0.09));
  opacity: 0;
  transition: opacity 160ms ease;
  pointer-events: none;
}

.info-card:hover::after {
  opacity: 1;
}

.info-card h2 {
  margin: 0;
  font-size: 1.3rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.7rem;
  color: #0b5ed7;
  margin: 0;
}

.info-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.info-list li {
  background: var(--surface-soft);
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: 14px;
  padding: 12px 14px;
  line-height: 1.4;
  font-size: 0.95rem;
}

.info-list a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.ghost-btn,
.primary-link {
  margin-top: auto;
  align-self: flex-start;
  font-weight: 600;
  border-radius: 999px;
  padding: 10px 18px;
  font-size: 0.92rem;
  transition:
    transform 150ms ease,
    box-shadow 150ms ease;
}

.ghost-btn {
  border: 1px solid rgba(15, 23, 42, 0.2);
  background: transparent;
  color: #0f172a;
  cursor: pointer;
}

.ghost-btn:hover,
.primary-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.16);
}

.primary-link {
  border: none;
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

@media (max-width: 980px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-media {
    order: -1;
  }
}

@media (max-width: 720px) {
  body {
    background: #f6f8fb;
  }

  .hero {
    padding: 26px 0 18px;
  }

  .app-logo {
    width: 54px;
    height: 54px;
  }

  .onboarding-showcase {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    height: auto;
  }

  .onboarding-shot {
    height: 150px;
  }

  .info-card {
    padding: 18px;
  }

  .info-card h2 {
    font-size: 1.15rem;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
  transition:
    box-shadow 160ms ease,
    transform 160ms ease;
}

.doc-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(15, 23, 42, 0.11);
}

.card h2 {
  margin: 0;
  font-size: 1.28rem;
  letter-spacing: 0.1px;
}

.card p {
  margin: 8px 0 14px;
  color: var(--muted);
}

.doc-content {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface-soft);
  padding: 16px;
  line-height: 1.65;
  font-size: 0.96rem;
  max-height: 420px;
  overflow: auto;
}

.doc-content h1,
.doc-content h2,
.doc-content h3 {
  margin: 16px 0 8px;
  color: #0b203e;
}

.doc-content h1 {
  font-size: 1.38rem;
}

.doc-content h2 {
  font-size: 1.18rem;
}

.doc-content h3 {
  font-size: 1.03rem;
}

.doc-content p {
  margin: 0 0 10px;
  color: #243348;
}

.doc-content ul,
.doc-content ol {
  margin: 0 0 12px 20px;
}

.doc-content li {
  margin-bottom: 6px;
}

.doc-content hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 16px 0;
}

.footer {
  text-align: center;
  color: #66758c;
  padding: 2px 0 32px;
  font-size: 0.9rem;
}

.single-doc {
  margin: 24px auto;
}

.single-doc .doc-content {
  max-height: none;
  min-height: 320px;
}

body[data-page] {
  background: #f6f8fb;
}

body[data-page] .hero {
  background: #ffffff;
  color: var(--text);
  padding: 22px 0 16px;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.08);
}

body[data-page] .hero::before {
  display: none;
}

body[data-page] .hero-inner.compact {
  max-width: 860px;
  margin: 0 auto;
  gap: 10px;
}

body[data-page] .hero-inner.compact .hero-brand {
  justify-content: flex-start;
}

body[data-page] .hero-inner.compact .app-logo {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  border: 1px solid #d5dce6;
  box-shadow: none;
}

body[data-page] .hero-inner.compact h1 {
  font-size: 1.3rem;
  color: #0f172a;
}

body[data-page] .hero-inner.compact .subtitle {
  color: #64748b;
  margin-top: 2px;
  font-size: 0.9rem;
}

body[data-page] .hero-inner.compact .quick-links {
  gap: 8px;
}

body[data-page] .hero-inner.compact .quick-links a {
  color: #334155;
  border-color: #d5dde7;
  background: #ffffff;
  font-size: 0.82rem;
  padding: 6px 10px;
}

body[data-page] .hero-inner.compact .quick-links a:hover {
  background: #f8fafc;
}

body[data-page] .hero-inner.compact .lang-switch {
  justify-self: start;
  background: #f1f5f9;
  border: 1px solid #dce3ec;
  padding: 4px;
}

body[data-page] .hero-inner.compact .lang-btn {
  color: #475569;
  padding: 7px 10px;
  font-size: 0.84rem;
}

body[data-page] .hero-inner.compact .lang-btn.active {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid #dce3ec;
}

body[data-page] .hero-inner.compact .onboarding-showcase {
  display: none;
}

body[data-page] .single-doc {
  width: min(860px, 92vw);
  margin: 20px auto 24px;
}

body[data-page] .single-doc .card {
  border-radius: 14px;
  border: 1px solid #dce3ec;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
  padding: 22px;
}

body[data-page] .single-doc .card h2 {
  font-size: 1.5rem;
}

body[data-page] .single-doc .card p {
  margin-top: 6px;
  color: #5b6b81;
}

body[data-page] .single-doc .doc-content {
  background: #ffffff;
  border-color: #e3e9f1;
  border-radius: 12px;
  padding: 18px;
  color: #1e293b;
  font-size: 0.98rem;
  line-height: 1.72;
}

body[data-page] .single-doc .doc-content h1 {
  font-size: 1.42rem;
  margin-top: 0;
}

body[data-page] .single-doc .doc-content h2 {
  font-size: 1.12rem;
  margin-top: 18px;
}

body[data-page] .single-doc .doc-content h3 {
  font-size: 1rem;
}

body[data-page] .footer {
  color: #64748b;
  padding-bottom: 22px;
}

@media (max-width: 640px) {
  .hero {
    padding-top: 32px;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .hero-brand {
    flex-direction: column;
    gap: 10px;
    justify-content: center;
  }

  .brand-text {
    text-align: center;
  }

  .hero-content {
    justify-items: center;
  }

  .quick-links {
    justify-content: center;
  }

  .lang-switch {
    justify-self: center;
  }

  .card {
    padding: 16px;
  }

  .onboarding-showcase {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .onboarding-shot {
    height: 120px;
  }

  body[data-page] .hero-inner.compact .hero-brand {
    justify-content: center;
  }

  body[data-page] .hero-inner.compact .lang-switch {
    justify-self: center;
  }

  body[data-page] .single-doc .card {
    padding: 16px;
  }
}