/* DueFlow site — tokens mirrored from the app's constants/theme.ts (Geist ink-on-paper). */

:root {
  --ink: #171717;
  --body: #4d4d4d;
  --mute: #8f8f8f;
  --canvas: #fafafa;
  --card: #ffffff;
  --hairline: #ebebeb;
  --hairline-soft: #f2f2f2;
  --link: #0070f3;
  --shadow: rgba(23, 23, 23, 0.06);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #fafafa;
    --body: #a1a1a1;
    --mute: #8f8f8f;
    --canvas: #0a0a0a;
    --card: #1a1a1a;
    --hairline: #333333;
    --hairline-soft: #171717;
    --link: #3291ff;
    --shadow: rgba(0, 0, 0, 0.4);
    color-scheme: dark;
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: 0 1.5rem;
  background: var(--canvas);
  color: var(--body);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 36rem; margin: 0 auto; padding: 3.5rem 0 4rem; }
.wrap-wide { max-width: 46rem; }

/* ---------- header / footer ---------- */

header.site {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--hairline);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.wordmark svg { width: 25px; height: 25px; display: block; flex: 0 0 25px; }

nav.site a {
  margin-left: 1.25rem;
  font-size: 0.9375rem;
  color: var(--mute);
  text-decoration: none;
}

nav.site a:hover,
nav.site a[aria-current="page"] { color: var(--ink); }

footer.site {
  margin-top: 4rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--hairline);
  font-size: 0.875rem;
  color: var(--mute);
}

footer.site a { color: var(--mute); }
footer.site p { margin-bottom: 0.375rem; }

/* ---------- type ---------- */

h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
  line-height: 1.2;
  letter-spacing: -0.022em;
  font-weight: 600;
  color: var(--ink);
}

h2 {
  margin: 2.75rem 0 0.75rem;
  font-size: 1.1875rem;
  line-height: 1.35;
  letter-spacing: -0.012em;
  font-weight: 600;
  color: var(--ink);
}

h3 {
  margin: 2rem 0 0.5rem;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
}

p { margin: 0 0 1.125rem; }

.lede { font-size: 1.0625rem; color: var(--mute); margin-bottom: 2.5rem; }
.updated { font-size: 0.875rem; color: var(--mute); margin-bottom: 2.5rem; }

ul { margin: 0 0 1.125rem; padding-left: 1.25rem; }
li { margin-bottom: 0.5rem; }

a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 2px; }
strong { color: var(--ink); font-weight: 600; }

/* ---------- cards and tiles ---------- */

.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin: 0 0 1.5rem;
}

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

.tiles { display: grid; gap: 0.75rem; margin: 2rem 0; }

.tile {
  display: block;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 1.125rem 1.375rem;
  text-decoration: none;
  color: inherit;
}

.tile:hover { border-color: var(--mute); }
.tile strong { display: block; font-size: 1.0625rem; margin-bottom: 0.125rem; }
.tile span { font-size: 0.9375rem; color: var(--mute); }

/* ---------- landing page ---------- */

.hero { text-align: center; padding: 1rem 0 0; }

.hero img.appicon {
  width: 88px; height: 88px;
  border-radius: 20px;
  border: 1px solid var(--hairline);
  background: #ffffff;
  box-shadow: 0 6px 20px var(--shadow);
  margin-bottom: 1.75rem;
}

.hero h1 {
  font-size: 2.5rem;
  line-height: 1.12;
  letter-spacing: -0.028em;
  margin-bottom: 0.875rem;
}

.hero .tagline {
  font-size: 1.1875rem;
  line-height: 1.55;
  color: var(--body);
  max-width: 30rem;
  margin: 0 auto 1.75rem;
}

.badge {
  display: inline-block;
  border: 1px solid var(--hairline);
  background: var(--card);
  border-radius: 100px;
  padding: 0.4rem 1rem;
  font-size: 0.875rem;
  color: var(--mute);
}

.rule { height: 1px; background: var(--hairline); border: 0; margin: 3.5rem 0; }

.feature { margin-bottom: 2.25rem; }
.feature:last-child { margin-bottom: 0; }
.feature h3 { margin: 0 0 0.375rem; }
.feature p { margin: 0; }

.features { margin: 2rem 0 0; }

.plain { list-style: none; padding-left: 0; }
.plain li {
  padding-left: 1.5rem;
  position: relative;
  margin-bottom: 0.625rem;
}
.plain li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--mute);
}

.section-label {
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--mute);
  margin: 0 0 1.25rem;
}

.center { text-align: center; }
.inline-link { color: var(--link); }