/* Keepsake product site — shared warm palette aligned with the product
   line (payback/taskly values), light & dark, zero dependencies. */
:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --ink: #1f1d1a;
  --muted: #6b6660;
  --line: #e8e2d9;
  --accent: #c15f3c;
  --accent-soft: #f7e5dd;
  --accent-ink: #ffffff;
  --chip-bg: #f0ebe2;
  --radius: 14px;
}
:root[data-theme="dark"] {
  --bg: #1b1a18;
  --surface: #24221f;
  --ink: #ece9e2;
  --muted: #a6a099;
  --line: #35322d;
  --accent: #d08a6e;
  --accent-soft: #3a2d27;
  --accent-ink: #1b1a18;
  --chip-bg: #2e2b27;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 ui-sans-serif, -apple-system, "PingFang SC", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 980px; margin: 0 auto; padding: 0 24px 64px; }

/* ---- nav ---- */
.nav { border-bottom: 1px solid var(--line); background: var(--bg); }
.nav-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.brand { font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 14px; }
.nav-links a:hover { color: var(--accent); }

.lang-dropdown-wrapper { position: relative; }
.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 5px 10px;
  font-size: 13px;
  cursor: pointer;
}
.lang-menu {
  display: none;
  position: absolute;
  right: 0;
  margin: 6px 0 0;
  padding: 4px;
  list-style: none;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0,0,0,.08);
  z-index: 5;
}
.lang-menu.open { display: block; }
.lang-menu li { padding: 6px 14px; font-size: 13px; cursor: pointer; white-space: nowrap; }
.lang-menu li:hover { background: var(--chip-bg); }

.theme-btn {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  padding: 5px 9px;
  font-size: 13px;
  cursor: pointer;
}
.theme-btn:hover { background: var(--chip-bg); }

/* ---- hero ---- */
.hero { padding: 68px 0 52px; }
.kicker {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
h1 { font-size: clamp(32px, 5vw, 46px); line-height: 1.15; margin: 0 0 18px; }
.lede { max-width: 660px; font-size: 18px; color: var(--muted); margin: 0 0 28px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-secondary { border: 1px solid var(--line); color: var(--ink); background: var(--surface); }
.btn-secondary:hover { background: var(--chip-bg); }

/* ---- sections & cards ---- */
.section { padding: 40px 0 8px; }
.section.alt { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 32px 28px; margin: 32px 0; }
.section h2 { font-size: 24px; margin: 0 0 20px; }
.grid { display: grid; gap: 16px; }
.three { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.two { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px;
}
.section.alt .card { background: var(--bg); }
.card-icon { font-size: 22px; margin-bottom: 6px; }
.card h3 { margin: 0 0 8px; font-size: 16px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---- steps ---- */
.steps { display: grid; gap: 14px; }
.step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
}
.step-num {
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step h3 { margin: 0 0 4px; font-size: 16px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* ---- download ---- */
.dl-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.dl-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.dl-card h3 { margin: 0 0 8px; font-size: 16px; }
.dl-card p { margin: 0 0 14px; color: var(--muted); font-size: 15px; }
.code {
  background: var(--chip-bg);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 13px;
  overflow-x: auto;
  white-space: pre;
  margin-bottom: 14px;
}
code {
  background: var(--chip-bg);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.9em;
}

.platform-row { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 12px; }
.chip {
  border: 1px solid var(--line);
  background: var(--chip-bg);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 14px;
}
.chip.ok { border-color: var(--accent); color: var(--accent); font-weight: 600; }
.muted { color: var(--muted); }

.prose ul { padding-left: 20px; }
.prose li { margin: 6px 0; color: var(--muted); }
.prose li strong { color: var(--ink); }

footer {
  max-width: 980px;
  margin: 32px auto 0;
  padding: 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}
footer a { color: inherit; }

@media (max-width: 640px) {
  .nav-inner { flex-direction: column; align-items: flex-start; }
  .hero { padding: 44px 0 36px; }
}