/* Styles for the GitHub Pages site (product page + docs). Same colours as the app. */
:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #f0f0ec;
  --border: #e2e2dc;
  --text: #1c1d1f;
  --muted: #5c5f63;
  --accent: #0b7a5c;
  --accent-ink: #ffffff;
  --accent-soft: #dff3ec;
  --code-bg: #f0f0ec;
  --radius: 12px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131416;
    --surface: #1c1d20;
    --surface-2: #25262a;
    --border: #33353a;
    --text: #ececec;
    --muted: #a3a5aa;
    --accent: #2fc497;
    --accent-ink: #0b1f19;
    --accent-soft: #173a30;
    --code-bg: #25262a;
    color-scheme: dark;
  }
}
* {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
}
body {
  background: var(--bg);
  color: var(--text);
  font:
    16px/1.6 system-ui,
    -apple-system,
    'Segoe UI',
    Roboto,
    sans-serif;
}
a {
  color: var(--accent);
}
img {
  max-width: 100%;
  height: auto;
}
.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* top bar */
.top {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.top .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 60px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}
.top nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.top nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
}
.top nav a:hover,
.top nav a[aria-current='page'] {
  color: var(--accent);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
}
.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* landing */
.hero {
  text-align: center;
  padding: 64px 0 32px;
}
.hero h1 {
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 16px 0 12px;
}
.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 28px;
}
.demo {
  margin: 40px auto 0;
  max-width: 900px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}
.demo img {
  display: block;
  width: 100%;
}
section {
  padding: 56px 0;
}
section h2 {
  font-size: 1.8rem;
  letter-spacing: -0.01em;
  margin: 0 0 8px;
  text-align: center;
}
.lead {
  text-align: center;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 32px;
}
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.feature h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}
.feature p {
  margin: 0;
  color: var(--muted);
}
.steps {
  display: grid;
  gap: 40px;
}
.step {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
  gap: 32px;
  align-items: center;
}
.step img {
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.step .num {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}
.step h3 {
  font-size: 1.4rem;
  margin: 10px 0 6px;
}
.step p {
  color: var(--muted);
  margin: 0;
}
.step.phone img {
  max-width: 300px;
  justify-self: center;
}
@media (max-width: 760px) {
  .step {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
}
.band {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta {
  text-align: center;
}

/* docs */
.docs {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 40px;
  padding: 32px 0 64px;
}
.docs aside nav {
  position: sticky;
  top: 16px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.docs aside a {
  color: var(--text);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 8px;
}
.docs aside a:hover {
  background: var(--surface-2);
}
.docs aside a[aria-current='page'] {
  background: var(--accent-soft);
  color: var(--text);
  font-weight: 600;
}
@media (max-width: 760px) {
  .docs {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }
  .docs aside nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
}
.prose {
  min-width: 0;
}
.prose h1 {
  font-size: 2rem;
  line-height: 1.2;
  margin-top: 0;
}
.prose h2 {
  margin-top: 2em;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--border);
}
.prose code {
  background: var(--code-bg);
  border-radius: 5px;
  padding: 0.1em 0.35em;
  font-size: 0.9em;
}
.prose pre {
  background: var(--code-bg);
  border-radius: 10px;
  padding: 14px 16px;
  overflow-x: auto;
}
.prose pre code {
  background: none;
  padding: 0;
}
.prose table {
  border-collapse: collapse;
  display: block;
  overflow-x: auto;
  margin: 1em 0;
}
.prose th,
.prose td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}
.prose th {
  background: var(--surface-2);
}
.prose blockquote {
  margin: 1em 0;
  padding: 4px 16px;
  border-left: 4px solid var(--accent);
  background: var(--surface);
  border-radius: 0 8px 8px 0;
}

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  padding-top: 24px;
  padding-bottom: 24px;
}