/* Kiduvo marketing site — shared styles.
   Palette mirrors the app: mint primary on near-white background,
   slate ink, sage accents. No JS, no build step. */

:root {
  color-scheme: light;
  --primary: #4C9F8A;
  --primary-soft: #ECF2EE;
  --primary-dark: #2B7A78;
  --ink: #15191E;
  --ink-dim: #5A6270;
  --ink-faint: #8B92A0;
  --bg: #FBFBFB;
  --surface: #FFFFFF;
  --line: #E5E8EB;
  --accent: #F5C9A8;
  --warning: #E0A828;
  --danger: #E5484D;
  --radius: 16px;
  --radius-sm: 10px;
  --maxw: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 22px;
}

/* ── Navigation ───────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  background: rgba(251, 251, 251, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--ink);
  font-size: 17px;
  letter-spacing: -0.2px;
}
.brand-mark {
  width: 32px; height: 32px;
  background: var(--primary);
  border-radius: 9px;
  display: grid; place-items: center;
  color: white; font-weight: 800; font-size: 16px;
  box-shadow: 0 4px 12px rgba(76, 159, 138, 0.25);
}
.nav-links {
  display: flex;
  gap: 22px;
  list-style: none;
  padding: 0; margin: 0;
}
.nav-links a {
  color: var(--ink-dim);
  font-size: 14px;
  font-weight: 500;
}
.nav-links a:hover {
  color: var(--ink);
  text-decoration: none;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hero {
  padding: 72px 0 56px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  padding: 6px 14px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  border-radius: 99px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.1;
  letter-spacing: -1.2px;
  margin: 0 0 18px;
  font-weight: 800;
}
.hero p.lead {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--ink-dim);
  max-width: 640px;
  margin: 0 auto 28px;
}
.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 22px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  background: var(--ink);
  color: white;
  border-radius: 99px;
  font-size: 14.5px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(21, 25, 30, 0.18);
}
.btn-primary { background: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); color: white; }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--line);
}
.btn-ghost:hover { background: var(--surface); }
.hero .micro {
  color: var(--ink-faint);
  font-size: 12.5px;
}

/* ── Sections ─────────────────────────────────────────────────── */
section {
  padding: 56px 0;
}
.section-head {
  text-align: center;
  margin-bottom: 38px;
}
.section-head h2 {
  font-size: clamp(26px, 3vw, 36px);
  margin: 0 0 10px;
  letter-spacing: -0.6px;
  font-weight: 800;
}
.section-head p {
  color: var(--ink-dim);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Feature grid ─────────────────────────────────────────────── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.card h3 {
  margin: 14px 0 6px;
  font-size: 16.5px;
  letter-spacing: -0.2px;
}
.card p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-dim);
}
.card-icon {
  width: 42px; height: 42px;
  border-radius: 11px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  display: grid; place-items: center;
  font-size: 21px;
}

/* ── Premium band ─────────────────────────────────────────────── */
.premium {
  background: linear-gradient(135deg, #4C9F8A 0%, #2B7A78 100%);
  color: white;
  border-radius: 24px;
  padding: 46px 38px;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: center;
}
.premium h2 {
  font-size: clamp(24px, 2.8vw, 32px);
  margin: 0 0 12px;
  letter-spacing: -0.5px;
}
.premium p { color: rgba(255,255,255,0.88); margin: 0 0 18px; font-size: 15px; }
.premium ul {
  list-style: none; padding: 0; margin: 0;
  display: grid; gap: 8px;
  font-size: 14px;
}
.premium ul li::before {
  content: "✓ ";
  font-weight: 700;
  margin-right: 6px;
}
.price {
  background: rgba(255,255,255,0.13);
  border-radius: var(--radius);
  padding: 22px;
  text-align: center;
}
.price .num {
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 4px;
}
.price .label {
  font-size: 12.5px;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.price .annual {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.2);
  font-size: 13px;
  color: rgba(255,255,255,0.88);
}

/* ── FAQ ──────────────────────────────────────────────────────── */
.faq details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  margin-bottom: 10px;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  list-style: none;
  position: relative;
  padding-right: 26px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0; top: -2px;
  font-size: 22px;
  color: var(--ink-dim);
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p {
  margin: 10px 0 0;
  color: var(--ink-dim);
  font-size: 14px;
}

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  background: #15191E;
  color: rgba(255,255,255,0.7);
  padding: 56px 0 32px;
  font-size: 13.5px;
}
footer .container {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 32px;
}
footer h4 {
  color: white;
  font-size: 13px;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin: 0 0 14px;
}
footer ul { list-style: none; padding: 0; margin: 0; }
footer ul li { margin-bottom: 8px; }
footer a { color: rgba(255,255,255,0.75); }
footer a:hover { color: white; text-decoration: none; }
.foot-legal {
  margin-top: 38px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.12);
  font-size: 12.5px;
  color: rgba(255,255,255,0.5);
  text-align: center;
}

/* ── Legal / support page layout ──────────────────────────────── */
.doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 22px 80px;
}
.doc h1 { font-size: 32px; letter-spacing: -0.6px; margin: 0 0 4px; }
.doc h2 { font-size: 19px; margin-top: 32px; }
.doc h3 { font-size: 15.5px; margin-top: 22px; color: #2D3340; }
.doc p, .doc li { font-size: 14.8px; color: #353A45; }
.doc .meta { color: var(--ink-faint); font-size: 13px; margin-bottom: 28px; }
.doc code { background: #ECEFF3; padding: 1px 5px; border-radius: 4px; font-size: 13px; }
.doc table {
  border-collapse: collapse;
  margin: 12px 0 18px;
  font-size: 13.5px;
  width: 100%;
}
.doc th, .doc td {
  text-align: left;
  padding: 8px 10px;
  border: 1px solid var(--line);
  vertical-align: top;
}
.doc th { background: var(--primary-soft); font-weight: 600; }
.doc .callout {
  background: #FFF6E5;
  border-left: 4px solid var(--warning);
  padding: 14px 16px;
  border-radius: 6px;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .premium {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }
  footer .container { grid-template-columns: 1fr; gap: 28px; }
}