/* ============================================================
   MOFATE OneHealth — Landing page styles (v3, engineering docs)
   Principles:
   - Real information only. No fabricated metrics or quotes.
   - Hairline borders, flat surfaces, restrained color.
   - Monospace labels for structure; Inter for reading.
   ============================================================ */

:root {
  --lnd-bg: #FFFFFF;
  --lnd-surface: #FFFFFF;
  --lnd-ink: #161D19;
  --lnd-muted: #5A6660;
  --lnd-faint: #8B968F;
  --lnd-border: #E3E1D8;
  --lnd-primary: #0EA5E9;
  --lnd-primary-deep: #075985;
  --lnd-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html.dark {
  --lnd-bg: #101613;
  --lnd-surface: #17201B;
  --lnd-ink: #E7EFE9;
  --lnd-muted: #A3B1A8;
  --lnd-faint: #6E7D74;
  --lnd-border: #26322B;
  --lnd-primary: #63C7F7;
  --lnd-primary-deep: #0A3350;
}

/* ---------- Base ---------- */

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--lnd-bg);
  color: var(--lnd-ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
code { font-family: var(--lnd-mono); }

.container { width: min(1080px, 100% - 3rem); margin-inline: auto; }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--lnd-primary); color: #fff; padding: 0.75rem 1.25rem;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

/* ---------- Header ---------- */

.lnd-header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in srgb, var(--lnd-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
}
.lnd-header.scrolled { border-bottom-color: var(--lnd-border); }

.lnd-nav { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 0.85rem 0; }

.lnd-brand { display: inline-flex; align-items: center; gap: 0.6rem; font-weight: 800; font-size: 1.05rem; letter-spacing: -0.02em; }
.lnd-brand img { height: 2.1rem; width: auto; object-fit: contain; }
.lnd-brand em { font-style: normal; color: var(--lnd-primary); }

.lnd-nav-links { display: flex; align-items: center; gap: 1.8rem; }
.lnd-nav-links a {
  font-size: 0.9rem; font-weight: 500; color: var(--lnd-muted);
  padding: 0.25rem 0; transition: color 0.15s ease;
}
.lnd-nav-links a:hover { color: var(--lnd-ink); }

.lnd-nav-cta { display: flex; align-items: center; gap: 0.6rem; }

.lnd-icon-btn {
  width: 2.4rem; height: 2.4rem; border: 1px solid var(--lnd-border);
  background: transparent; color: var(--lnd-muted); cursor: pointer; font-size: 0.95rem;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.lnd-icon-btn:hover { color: var(--lnd-ink); border-color: var(--lnd-faint); }
.lnd-menu-btn { display: none; }

/* ---------- Buttons ---------- */

.lnd-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.7rem 1.35rem; border-radius: 8px; font-weight: 600; font-size: 0.92rem;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.lnd-btn-primary { background: var(--lnd-primary); color: #fff; }
.lnd-btn-primary:hover { background: color-mix(in srgb, var(--lnd-primary) 88%, black); }
html.dark .lnd-btn-primary { color: #0A1710; }
html.dark .lnd-btn-primary:hover { background: color-mix(in srgb, var(--lnd-primary) 88%, white); }

.lnd-btn-ghost { background: transparent; color: var(--lnd-ink); border-color: var(--lnd-border); }
.lnd-btn-ghost:hover { border-color: var(--lnd-faint); }

.lnd-btn-white { background: #fff; color: var(--lnd-primary-deep); }
.lnd-btn-white:hover { background: rgba(255, 255, 255, 0.88); }

.lnd-btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, 0.45); }
.lnd-btn-outline:hover { border-color: rgba(255, 255, 255, 0.9); }

/* ---------- Type helpers ---------- */

.lnd-kicker {
  font-family: var(--lnd-mono);
  font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--lnd-primary); margin-bottom: 1rem;
}
.lnd-kicker-invert { color: rgba(255, 255, 255, 0.65); }

/* ---------- Hero ---------- */

.lnd-hero { padding: 5.5rem 0 5rem; border-bottom: 1px solid var(--lnd-border); }

.lnd-hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.6rem);
  font-weight: 800; line-height: 1.08; letter-spacing: -0.035em;
  max-width: 46rem;
}

.lnd-hero-sub {
  margin-top: 1.4rem; font-size: 1.08rem; color: var(--lnd-muted);
  max-width: 40rem; line-height: 1.7;
}

.lnd-hero-actions { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: 0.75rem; }

.lnd-hero-specs {
  margin-top: 2.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  font-family: var(--lnd-mono); font-size: 0.78rem; color: var(--lnd-faint);
}
.lnd-hero-specs li { display: inline-flex; align-items: center; gap: 0.55rem; }
.lnd-hero-specs li::before { content: '·'; color: var(--lnd-primary); }

/* ---------- Sections ---------- */

.lnd-section { padding: 5rem 0; }
.lnd-section-alt { background: color-mix(in srgb, var(--lnd-surface) 55%, var(--lnd-bg)); border-block: 1px solid var(--lnd-border); }

.lnd-section-head { max-width: 44rem; margin-bottom: 2.75rem; }
.lnd-section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 800;
  letter-spacing: -0.03em; line-height: 1.18;
}

/* ---------- Module index ---------- */

.lnd-index { border-top: 1px solid var(--lnd-border); }

.lnd-row {
  display: grid; grid-template-columns: 3.5rem 1fr auto 2rem;
  align-items: baseline; gap: 1.25rem;
  padding: 1.4rem 0.5rem; border-bottom: 1px solid var(--lnd-border);
  transition: background 0.15s ease;
}
.lnd-row:hover { background: color-mix(in srgb, var(--lnd-surface) 70%, transparent); }

.lnd-row-num { font-family: var(--lnd-mono); font-size: 0.82rem; color: var(--lnd-faint); }

.lnd-row-body { display: grid; gap: 0.2rem; }
.lnd-row-body b { font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em; }
.lnd-row-body span { font-size: 0.92rem; color: var(--lnd-muted); max-width: 40rem; }

.lnd-row-path { font-size: 0.78rem; color: var(--lnd-faint); }

.lnd-row-arrow {
  font-size: 0.85rem; color: var(--lnd-faint); justify-self: end; align-self: center;
  transition: transform 0.15s ease, color 0.15s ease;
}
.lnd-row:hover .lnd-row-arrow { transform: translateX(3px); color: var(--lnd-primary); }

/* ---------- How it works ---------- */

.lnd-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--lnd-border); border: 1px solid var(--lnd-border); }
.lnd-step { background: var(--lnd-bg); padding: 1.75rem 1.6rem; }
.lnd-section-alt .lnd-step { background: var(--lnd-surface); }

.lnd-step-num { font-family: var(--lnd-mono); font-size: 0.8rem; color: var(--lnd-primary); display: block; margin-bottom: 0.9rem; }
.lnd-step h3 { font-size: 1.05rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.45rem; }
.lnd-step p { font-size: 0.92rem; color: var(--lnd-muted); }

/* ---------- Access / CTA ---------- */

.lnd-cta {
  display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2.5rem;
  background: var(--lnd-primary-deep); color: #E7EFE9;
  padding: 3rem 3rem; border-radius: 12px;
}
.lnd-cta h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.7rem); font-weight: 700;
  letter-spacing: -0.02em; line-height: 1.3; max-width: 36rem;
}
.lnd-cta-copy > p:not(.lnd-kicker) { margin-top: 0.9rem; opacity: 0.75; max-width: 36rem; font-size: 0.95rem; }
.lnd-cta-actions { display: flex; flex-direction: column; gap: 0.7rem; min-width: 13rem; }

/* ---------- Footer ---------- */

.lnd-footer { background: #0C120E; color: #97A69D; border-top: 1px solid var(--lnd-border); padding-top: 3.5rem; }
.lnd-footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; padding-bottom: 2.25rem; }
.lnd-footer .lnd-brand span { color: #E7EFE9; }
.lnd-footer .lnd-brand em { color: #43C08D; }
.lnd-footer h4 { color: #E7EFE9; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.9rem; }
.lnd-footer ul { display: flex; flex-direction: column; gap: 0.5rem; }
.lnd-footer ul a { font-size: 0.88rem; transition: color 0.15s ease; }
.lnd-footer ul a:hover { color: #E7EFE9; }
.lnd-footer-brand p { margin-top: 1rem; font-size: 0.88rem; max-width: 21rem; line-height: 1.65; }
.lnd-footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08); padding: 1.3rem 0; font-size: 0.82rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .lnd-nav { gap: 0.75rem; }
  .lnd-nav-links { gap: 1.1rem; }
  .lnd-nav-cta .lnd-btn { padding: 0.6rem 1rem; font-size: 0.86rem; }
  .lnd-brand { font-size: 0.98rem; }

  .lnd-steps { grid-template-columns: 1fr; }
  .lnd-cta { grid-template-columns: 1fr; padding: 2.25rem 1.6rem; }
  .lnd-cta-actions { flex-direction: row; flex-wrap: wrap; }
  .lnd-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .container { width: min(1080px, 100% - 2rem); }

  .lnd-nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--lnd-surface); border-bottom: 1px solid var(--lnd-border);
    padding: 0.5rem 1.5rem 1rem;
    box-shadow: 0 16px 32px rgba(0, 0, 0, 0.08);
  }
  html.dark .lnd-nav-links { box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4); }
  .lnd-nav-links.open { display: flex; }
  .lnd-nav-links li { width: 100%; }
  .lnd-nav-links a { display: block; padding: 0.8rem 0; border-bottom: 1px solid var(--lnd-border); }
  .lnd-menu-btn { display: inline-flex; }
  .lnd-nav-cta .lnd-btn-ghost { display: none; }

  .lnd-hero { padding: 3.5rem 0 3.25rem; }
  .lnd-hero h1 { font-size: clamp(1.95rem, 8.5vw, 2.6rem); }
  .lnd-hero-sub { font-size: 1rem; }
  .lnd-hero-actions .lnd-btn { width: 100%; }
  .lnd-hero-specs { flex-direction: column; gap: 0.5rem; }

  .lnd-section { padding: 3.5rem 0; }
  .lnd-section-head { margin-bottom: 2rem; }

  .lnd-row { grid-template-columns: 2.5rem 1fr; gap: 0.35rem 1rem; padding: 1.2rem 0.25rem; }
  .lnd-row-num { order: -1; }
  .lnd-row-path { display: none; }
  .lnd-row-arrow { position: absolute; right: 0.25rem; top: 1.35rem; }
  .lnd-row { position: relative; }

  .lnd-footer { padding-top: 2.75rem; }
  .lnd-footer-grid { grid-template-columns: 1fr; gap: 1.6rem; }
  .lnd-footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 420px) {
  .lnd-brand span { display: none; }
  .lnd-cta-actions { flex-direction: column; }
  .lnd-cta-actions .lnd-btn { width: 100%; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}