/* TrafficTwin Jeddah project page. Plain CSS, system fonts, no external assets. */
:root {
  --bg: #0b1017;
  --panel: #121a24;
  --line: #233041;
  --text: #e6ebf2;
  --muted: #9aa7b8;
  --accent: #4fc3f7;
  --warn: #ffb74d;
  --good: #66bb6a;
  --bad: #ef5350;
  --radius: 10px;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.9em; }
pre {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  line-height: 1.5;
}
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

nav.top {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 16, 23, 0.92);
  border-bottom: 1px solid var(--line);
}
nav.top .wrap { display: flex; align-items: center; gap: 20px; height: 56px; }
nav.top .brand { font-weight: 700; color: var(--text); margin-right: auto; }
nav.top a.link { color: var(--muted); font-size: 0.95em; }

header.hero { padding: 48px 0 24px; }
header.hero h1 { font-size: 2.6em; line-height: 1.15; margin: 0 0 12px; }
header.hero p.lead { font-size: 1.2em; color: var(--muted); max-width: 820px; margin: 0 0 20px; }
.badge {
  display: inline-block;
  border: 1px solid var(--warn);
  color: var(--warn);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 0.85em;
  margin: 0 8px 8px 0;
}
.cta { display: flex; gap: 12px; flex-wrap: wrap; margin: 8px 0 28px; }
.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  background: var(--accent); color: #04121c; font-weight: 600;
}
.btn.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn:hover { text-decoration: none; filter: brightness(1.1); }
.poster { display: block; position: relative; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.poster img { display: block; width: 100%; height: auto; }
.poster .caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 14px 18px; background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
  font-size: 0.95em;
}

section { padding: 40px 0; border-top: 1px solid var(--line); }
section h2 { font-size: 1.7em; margin: 0 0 8px; }
section p.sub { color: var(--muted); margin: 0 0 24px; max-width: 860px; }

.grid { display: grid; gap: 18px; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); }
.card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
}
.card img { display: block; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; background: #000; }
.card .body { padding: 12px 16px 16px; }
.card h3 { margin: 0 0 4px; font-size: 1.05em; }
.card p { margin: 0 0 8px; color: var(--muted); font-size: 0.92em; }
.card .meta { font-size: 0.85em; color: var(--muted); }

.two { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; align-items: start; }
.two img { width: 100%; height: auto; border-radius: var(--radius); border: 1px solid var(--line); }
ol.result { padding-left: 20px; margin: 0 0 16px; }
ol.result li { margin-bottom: 10px; }

table { width: 100%; border-collapse: collapse; font-size: 0.92em; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--line); text-align: right; white-space: nowrap; }
th:first-child, td:first-child { text-align: left; }
th { color: var(--muted); font-weight: 600; }
.tablewrap { overflow-x: auto; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
td.neg { color: var(--good); }
td.pos { color: var(--bad); }
.note { color: var(--muted); font-size: 0.9em; margin-top: 12px; }

.arch { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
.arch svg { display: block; width: 100%; height: auto; }

footer { padding: 32px 0 48px; color: var(--muted); font-size: 0.9em; border-top: 1px solid var(--line); }

@media (max-width: 820px) {
  header.hero h1 { font-size: 2em; }
  .two { grid-template-columns: 1fr; }
  nav.top a.link { display: none; }
}