/* Public site for quikdoc.gigabytedevelopers.com. Colours follow the admin
   console (admin/src/app/globals.css). No web fonts, no inline styles: the
   Content-Security-Policy in firebase.json allows only files from this site. */

:root {
  --canvas: #ffffff;
  --surface: #f5f5f5;
  --ink: #0a0a0a;
  --ink-2: #5c5c5c;
  --line: #e6e6e6;
  --primary: #9be15d;
  --on-primary: #0a0a0a;
  --link: #3f7a12;
  --radius: 14px;
  --width: 760px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --canvas: #0a0a0a;
    --surface: #171717;
    --ink: #ffffff;
    --ink-2: #a3a3a3;
    --line: #262626;
    --link: #9be15d;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.6 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--link); }

.wrap { max-width: var(--width); margin: 0 auto; padding: 0 16px; }
.wrap.wide { max-width: 1040px; }

/* Header and footer */
.top { border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 64px; }
.brand { display: inline-flex; line-height: 0; }
.brand img { height: 32px; width: auto; }
.nav { display: flex; gap: 20px; font-size: 15px; }
.nav a { color: var(--ink-2); text-decoration: none; }
.nav a:hover { color: var(--ink); }

.foot { border-top: 1px solid var(--line); margin-top: 64px; padding: 28px 0 40px; color: var(--ink-2); font-size: 14px; }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 18px; }
.foot a { color: var(--ink-2); }

/* Light/dark logo swap */
.logo-dark { display: none; }
@media (prefers-color-scheme: dark) {
  .logo-light { display: none; }
  .logo-dark { display: inline; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px;
  background: var(--primary); color: var(--on-primary);
  font-weight: 600; text-decoration: none; border: 0; cursor: pointer; font-size: 16px;
}
.btn:hover { filter: brightness(0.95); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }

/* Home */
.hero { padding-top: 72px; padding-bottom: 40px; }
.hero h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; letter-spacing: -0.02em; margin: 0 0 18px; }
.hero p { font-size: 19px; color: var(--ink-2); max-width: 36em; margin: 0 0 28px; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 12px; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin: 40px 0; }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.card h2, .card h3 { font-size: 17px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* Documents */
.doc { padding-top: 48px; }
.doc h1 { font-size: clamp(30px, 5vw, 40px); line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 8px; }
.doc .meta { color: var(--ink-2); margin: 0 0 32px; font-size: 15px; }
.doc h2 { font-size: 22px; margin: 40px 0 10px; }
.doc h3 { font-size: 17px; margin: 24px 0 6px; }
.doc ul { padding-left: 22px; }
.doc li { margin: 4px 0; }
.summary { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px; margin: 0 0 8px; }
.summary p { margin: 0 0 8px; }
.summary ul { margin: 0; }

.table-wrap { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 12px 0; }
th, td { text-align: left; vertical-align: top; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--ink-2); font-weight: 600; }

.doc-list { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 12px; }
.doc-list a { display: block; text-decoration: none; color: var(--ink); }
.doc-list .card:hover { border-color: var(--ink-2); }

/* Invite and shared-file pages */
.panel { max-width: 520px; margin: 64px auto 0; text-align: center; }
.panel h1 { font-size: clamp(28px, 5vw, 38px); line-height: 1.15; margin: 0 0 12px; }
.panel p { color: var(--ink-2); margin: 0 0 24px; }
.code {
  display: inline-flex; align-items: center; gap: 12px;
  font: 600 26px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: 0.12em;
  background: var(--surface); border: 1px dashed var(--ink-2); border-radius: var(--radius);
  padding: 16px 20px; margin: 0 0 24px;
}
.code button { font: 600 14px/1 ui-sans-serif, system-ui, sans-serif; letter-spacing: 0; padding: 8px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--canvas); color: var(--ink); cursor: pointer; }
.steps { text-align: left; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 22px 18px 42px; margin: 0 0 28px; }
.steps li { margin: 6px 0; }
[hidden] { display: none !important; }

@media (max-width: 560px) {
  .nav { gap: 14px; font-size: 14px; }
  .brand img { height: 28px; }
  .hero { padding-top: 48px; }
}