/* Decodoc landing pages — calm, premium utility, no JS */

:root {
  --bg: #fafbfc;
  --bg-alt: #f1f5f9;
  --paper: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #0f172a;
  --link: #1d4ed8;
  --link-hover: #1e40af;
  --border: #e2e8f0;
  --brand-blue: #2563eb;
  --brand-blue-soft: #e6f4fe;
  --max-content: 72rem;
  --max-text: 36rem;
  --max-shot: 26.25rem;
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

a:hover {
  color: var(--link-hover);
}

.landing-skip {
  position: absolute;
  left: -9999px;
  top: 0;
}

.landing-skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--paper);
  padding: 0.5rem 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
}

/* Header */

.landing-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.landing-header-inner {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.landing-logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  min-width: 0;
}

.landing-logo-link img {
  height: 2rem;
  width: auto;
  max-width: min(9.5rem, 42vw);
}

.landing-header-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem 1rem;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.landing-lang-switch {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.landing-lang-switch a {
  text-decoration: none;
  color: var(--muted);
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
}

.landing-lang-switch a:hover {
  color: var(--link);
  background: var(--bg-alt);
}

.landing-lang-switch a[aria-current="page"] {
  color: var(--accent);
  font-weight: 600;
  background: var(--brand-blue-soft);
}

.landing-lang-sep {
  color: var(--border);
  user-select: none;
}

.landing-legal-link {
  text-decoration: none;
  color: var(--muted);
  white-space: nowrap;
}

.landing-legal-link:hover {
  color: var(--link);
}

/* Layout */

.landing-main {
  overflow-x: hidden;
}

.landing-section {
  padding: 3rem 1.25rem;
}

.landing-section--alt {
  background: var(--bg-alt);
}

.landing-container {
  max-width: var(--max-content);
  margin: 0 auto;
}

.landing-container--narrow {
  max-width: var(--max-text);
}

.landing-section-title {
  margin: 0 0 1rem;
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  font-weight: 650;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.landing-section-title--narrow {
  max-width: 42rem;
  line-height: 1.35;
}

.landing-lead {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: var(--max-text);
}

/* Hero */

.landing-hero {
  padding: 2.75rem 1.25rem 3.25rem;
  background: var(--paper);
  border-bottom: 1px solid var(--border);
}

.landing-hero-grid {
  max-width: var(--max-content);
  margin: 0 auto;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.landing-hero-copy h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 650;
  line-height: 1.15;
  color: var(--accent);
  letter-spacing: -0.03em;
}

.landing-hero-promo {
  margin: 0 0 1rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--brand-blue);
}

.landing-hero-body {
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 32rem;
}

.landing-hero-visual {
  display: flex;
  justify-content: center;
}

/* Core value */

.landing-pillars {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.landing-pillar {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.35rem;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.landing-pillar strong {
  display: block;
  font-size: 1.05rem;
  font-weight: 650;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.landing-pillar span {
  font-size: 0.9rem;
  color: var(--muted);
}

/* Story panels */

.landing-story-stack {
  display: flex;
  flex-direction: column;
  gap: 3rem;
  align-items: center;
}

.landing-shot-panel {
  width: 100%;
  max-width: var(--max-shot);
  margin: 0 auto;
}

.landing-shot-panel img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
}

/* Language promise */

.landing-promise-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.landing-promise-lockup img {
  width: 100%;
  max-width: 28rem;
  margin: 0 auto;
  border-radius: 8px;
}

.landing-promise-shot {
  max-width: var(--max-shot);
  margin: 0 auto;
}

.landing-promise-shot img {
  width: 100%;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(15, 23, 42, 0.08);
}

.landing-promise-text {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--accent);
  text-align: center;
  max-width: 28rem;
  margin-inline: auto;
}

/* Trust */

.landing-trust-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 12px;
  padding: 1.5rem 1.35rem;
  max-width: var(--max-text);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.landing-trust-card p {
  margin: 0 0 0.75rem;
  color: var(--text);
}

.landing-trust-card p:last-child {
  margin-bottom: 0;
}

/* Availability */

.landing-availability {
  text-align: center;
}

.landing-availability .landing-lead {
  margin-inline: auto;
  text-align: center;
}

.landing-feature-band {
  max-width: 40rem;
  margin: 0 auto 2rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.landing-feature-band img {
  width: 100%;
}

.landing-store-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1rem;
  margin-top: 0.5rem;
  max-width: 100%;
}

.landing-store-badge-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 0;
  border-radius: 6px;
  transition: opacity 0.15s ease, box-shadow 0.15s ease;
  flex: 0 1 auto;
}

.landing-app-store-link img {
  display: block;
  width: auto;
  height: clamp(2.75rem, 8vw, 3.5rem);
  max-width: min(100%, 12.5rem);
}

.landing-google-play-link img {
  display: block;
  width: auto;
  height: clamp(2.75rem, 8vw, 3.5rem);
  max-width: min(100%, 20rem);
}

.landing-store-badge-link:hover {
  opacity: 0.92;
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.12);
}

.landing-store-badge-link:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.landing-store-attribution {
  margin: 1.25rem auto 0;
  max-width: 40rem;
  font-size: 0.75rem;
  color: var(--muted);
  line-height: 1.45;
}

/* Footer */

.landing-footer {
  padding: 2.5rem 1.25rem 3rem;
  background: var(--paper);
  border-top: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--muted);
}

.landing-footer-inner {
  max-width: var(--max-content);
  margin: 0 auto;
}

.landing-footer p {
  margin: 0 0 0.65rem;
}

.landing-footer strong {
  color: var(--text);
}

.landing-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.landing-footer-links a {
  text-decoration: none;
}

.landing-footer-links a:hover {
  text-decoration: underline;
}

/* Responsive */

@media (max-width: 479px) {
  .landing-header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.65rem;
  }

  .landing-header-nav {
    width: 100%;
    justify-content: space-between;
  }
}

@media (min-width: 640px) {
  .landing-pillars {
    grid-template-columns: repeat(3, 1fr);
  }

  .landing-hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .landing-hero-visual {
    justify-content: flex-end;
  }
}

@media (min-width: 1024px) {
  .landing-section {
    padding: 4rem 1.5rem;
  }

  .landing-hero {
    padding: 3.5rem 1.5rem 4rem;
  }

  .landing-hero-grid {
    gap: 3rem;
  }

  .landing-story-stack {
    gap: 4.5rem;
  }

  .landing-promise-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}