/* Roomprint web — paper-and-ink theme that auto-adapts to dark mode. */

:root {
  --paper:        #f8f6f2;
  --paper-alt:    #f2eedb;
  --surface:      #ffffff;
  --ink:          #1f2226;
  --ink-2:        #4d5260;
  --ink-3:        #8b8f99;
  --line:         #d9d4c8;
  --sage:         #3b8d64;
  --sage-muted:   rgba(59, 141, 100, 0.14);
  --max:          720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #131312;
    --paper-alt:  #1d1c1a;
    --surface:    #1e1d1a;
    --ink:        #f1ede0;
    --ink-2:      #b0a99a;
    --ink-3:      #797368;
    --line:       #3c3832;
    --sage:       #58aa80;
    --sage-muted: rgba(88, 168, 128, 0.20);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--sage);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 120ms ease;
}
a:hover { border-bottom-color: var(--sage); }

main {
  max-width: var(--max);
  margin: 0 auto;
  padding: 32px 22px 80px;
}

header.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 28px;
}

.brand .mark {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.brand .name {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.brand .crumb {
  margin-left: auto;
  font-size: 14px;
  color: var(--ink-3);
}

h1 {
  font-size: 34px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
  font-weight: 700;
}

h2 {
  font-size: 22px;
  margin: 36px 0 12px;
  letter-spacing: -0.01em;
  font-weight: 700;
}

h3 {
  font-size: 17px;
  margin: 24px 0 6px;
  font-weight: 600;
}

p { margin: 0 0 14px; color: var(--ink); }
p.lede { color: var(--ink-2); font-size: 19px; line-height: 1.45; }

ul { padding-left: 22px; margin: 0 0 16px; }
li { margin-bottom: 6px; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 36px 0;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px 20px;
  margin: 18px 0;
}

.callout {
  background: var(--sage-muted);
  color: var(--sage);
  border-radius: 10px;
  padding: 12px 16px;
  font-weight: 500;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.button {
  display: inline-block;
  background: var(--sage);
  color: #fff;
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 15px;
  border-bottom: none;
}
.button:hover { border-bottom: none; opacity: 0.92; }

.kv {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 10px 18px;
  margin: 12px 0 20px;
}
.kv dt { color: var(--ink-3); font-size: 14px; }
.kv dd { margin: 0; }

footer {
  margin-top: 48px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 22px;
  align-items: center;
}
footer a { color: var(--ink-3); }
footer .spacer { flex: 1; }

/* Index-specific */

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 30px;
  align-items: center;
  margin-bottom: 32px;
}
@media (max-width: 620px) {
  .hero { grid-template-columns: 1fr; }
}

.hero .mark-big {
  width: 168px;
  height: 168px;
  border-radius: 36px;
  background: var(--sage);
  display: grid;
  place-items: center;
  box-shadow: 0 18px 50px rgba(31, 34, 38, 0.18);
}
.hero .mark-big svg { width: 70%; height: 70%; }

.features {
  display: grid;
  gap: 14px;
}
.feature {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  align-items: flex-start;
}
.feature .dot {
  width: 22px;
  height: 22px;
  margin-top: 4px;
  border-radius: 7px;
  background: var(--sage-muted);
  color: var(--sage);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 14px;
}
.feature .title { font-weight: 600; margin: 0 0 2px; }
.feature .body  { color: var(--ink-2); font-size: 15px; margin: 0; }