/* SponsorJobs landing page. Same design system as the app (ui/static/styles.css): dark,
   near-colourless, one accent spent once (the download for your OS), system fonts,
   one centered column. Light theme follows the OS, as the app does. */

:root {
  color-scheme: dark;
  --bg: #131316;
  --surface: #17171b;
  --surface-2: #1c1c21;
  --ink: #e7e7ea;
  --ink-2: #b4b4bb;
  --muted: #82828c;
  --faint: #55555e;
  --border: #242429;
  --border-strong: #2f2f36;
  --accent: #e4e4e8;
  --accent-hover: #f4f4f6;
  --accent-ink: #16161a;
  --accent-ring: rgba(228, 228, 232, 0.22);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.30);
  --r-sm: 7px;
  --r: 10px;
  --r-lg: 14px;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --col: 1040px;
  --gutter: 16px;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f7f7f8;
    --surface: #ffffff;
    --surface-2: #f1f1f3;
    --ink: #18181b;
    --ink-2: #3f3f46;
    --muted: #71717a;
    --faint: #a1a1aa;
    --border: #e5e5e8;
    --border-strong: #d4d4d8;
    --accent: #18181b;
    --accent-hover: #000000;
    --accent-ink: #ffffff;
    --accent-ring: rgba(24, 24, 27, 0.18);
    --shadow-sm: 0 1px 2px rgba(24, 24, 27, 0.06);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, p, ul, ol { margin: 0; }
a { color: var(--ink-2); text-decoration: underline; text-decoration-color: var(--faint); text-underline-offset: 2px; }
a:hover { color: var(--ink); text-decoration-color: var(--ink); }
code {
  font-family: var(--mono); font-size: 12.5px;
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 5px; padding: 1px 6px; color: var(--ink);
  overflow-wrap: anywhere;
}
abbr[title] { text-decoration: none; }
strong { color: var(--ink); font-weight: 600; }

/* ------------------------------------------------------------ layout */
.top, main, .foot {
  max-width: var(--col);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-top: 18px; padding-bottom: 18px;
}
.brand { display: inline-flex; align-items: center; gap: 9px; text-decoration: none; color: var(--ink); }
.brand-mark { display: block; border-radius: 5px; }
.brand-name { font-size: 15px; font-weight: 650; letter-spacing: -0.01em; }
.top-nav { display: flex; gap: 18px; flex-wrap: wrap; justify-content: flex-end; }
.top-nav a { font-size: 13px; color: var(--muted); text-decoration: none; }
.top-nav a:hover { color: var(--ink); }

.section { padding: 56px 0 8px; }
.section h2 {
  font-size: 22px; font-weight: 650; letter-spacing: -0.015em; color: var(--ink);
  margin-bottom: 18px;
}
.section-lede { font-size: 14.5px; color: var(--ink-2); max-width: 64ch; margin-bottom: 22px; }
.meta { font-size: 12.5px; color: var(--muted); margin-top: 16px; max-width: 64ch; }
.note { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

/* ------------------------------------------------------------ hero */
.hero { padding: 72px 0 40px; max-width: 760px; }
.kicker {
  font-size: 11.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--faint); margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(28px, 4.6vw, 44px); font-weight: 650; line-height: 1.12;
  letter-spacing: -0.025em; color: var(--ink); margin-bottom: 20px;
}
.lede { font-size: 16px; color: var(--ink-2); max-width: 60ch; margin-bottom: 28px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* buttons, as in the app */
.btn {
  display: inline-flex; align-items: baseline; gap: 7px; white-space: nowrap;
  font-size: 13.5px; font-weight: 550; line-height: 1; text-decoration: none;
  padding: 11px 16px; border-radius: var(--r-sm); border: 1px solid transparent;
  transition: background 200ms, border-color 200ms, color 200ms, transform 200ms;
}
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-ring); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.btn-ghost { background: transparent; color: var(--ink-2); border-color: var(--border-strong); }
.btn-ghost:hover { color: var(--ink); border-color: var(--faint); }
.btn-sub { font-size: 11.5px; font-weight: 500; opacity: 0.7; }

/* ------------------------------------------------------------ live numbers */
.live { padding: 4px 0 0; }
.live-line {
  display: inline-block; font-size: 12.5px; color: var(--muted);
  padding: 7px 12px; border: 1px solid var(--border); border-radius: 999px;
  background: var(--surface);
}
.live-line strong { font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------ cards */
.grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 24px 24px 22px; box-shadow: var(--shadow-sm); min-width: 0;
}
.card h3 { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 8px; letter-spacing: -0.01em; }
.card p { font-size: 13.5px; color: var(--muted); }
.card ol { padding-left: 20px; color: var(--ink-2); font-size: 13.5px; display: grid; gap: 8px; }
.card ol li { padding-left: 2px; }

.plain { list-style: none; padding: 0; display: grid; gap: 14px; max-width: 72ch; }
.plain li { font-size: 14px; color: var(--muted); padding-left: 18px; position: relative; }
.plain li::before {
  content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 6px;
  border-radius: 50%; background: var(--faint);
}

/* ------------------------------------------------------------ demo placeholder */
.demo-placeholder {
  border: 1px dashed var(--border-strong); border-radius: var(--r-lg);
  background: var(--surface); padding: 48px 24px; text-align: center;
  aspect-ratio: 16 / 9; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 8px; max-height: 420px;
}
.demo-title { font-size: 13px; font-weight: 600; color: var(--ink-2); }
.demo-placeholder p:not(.demo-title) { font-size: 13px; color: var(--faint); max-width: 48ch; }

/* ------------------------------------------------------------ footer */
.foot { padding: 64px var(--gutter) 40px; font-size: 12.5px; color: var(--faint); border-top: 1px solid var(--border); margin-top: 56px; }
.foot a { color: var(--muted); }

/* ------------------------------------------------------------ phone width */
@media (max-width: 860px) {
  .grid, .grid.two { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .top { flex-direction: column; align-items: flex-start; gap: 12px; }
  .top-nav { justify-content: flex-start; gap: 14px; }
  .hero { padding-top: 44px; }
  .section { padding-top: 44px; }
  .actions .btn { width: 100%; justify-content: center; }
  .demo-placeholder { aspect-ratio: auto; padding: 36px 18px; }
  .card { padding: 20px 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn { transition: none; }
}