:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5f6b7a;
  --border: #dde1e6;
  --accent: #1f5f8b;
  --accent-ink: #ffffff;
  --ok: #2e7d32;
  --warn: #b26a00;
  --bad: #b3261e;
  --radius: 10px;
  --maxw: 1040px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181d;
    --surface: #1d232a;
    --text: #e8ecf1;
    --muted: #9aa5b1;
    --border: #2d353f;
    --accent: #6fb1e0;
    --accent-ink: #0f1a24;
  }
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
}
a { color: var(--accent); }
img { max-width: 100%; }

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

header.site {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
header.site .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; min-height: 60px; flex-wrap: wrap;
}
.brand { font-weight: 700; text-decoration: none; color: var(--text); font-size: 1.1rem; }
nav.main { display: flex; gap: 4px 18px; flex-wrap: wrap; align-items: center; }
#auth-slot { display: contents; }
nav.main a { text-decoration: none; color: var(--muted); padding: 8px 0; }
nav.main a[aria-current="page"], nav.main a:hover { color: var(--accent); }

main { padding: 32px 0 56px; }
h1 { font-size: 2rem; margin: 0 0 8px; line-height: 1.2; }
h2 { font-size: 1.35rem; margin: 32px 0 8px; }
.lead { color: var(--muted); font-size: 1.1rem; margin: 0 0 24px; max-width: 60ch; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.card h3 { margin: 0 0 6px; font-size: 1.1rem; }
.card p { margin: 0; color: var(--muted); }
a.card { text-decoration: none; color: inherit; display: block; }
a.card:hover { border-color: var(--accent); }

.btn {
  display: inline-block; padding: 10px 18px; border-radius: 8px;
  border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn.secondary { background: transparent; color: var(--accent); }
.btn:disabled { opacity: .6; cursor: default; }

form.stack { display: grid; gap: 14px; max-width: 420px; }
label { display: grid; gap: 6px; font-weight: 600; }
input, textarea, select {
  font: inherit; padding: 10px 12px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text); width: 100%;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.hint { color: var(--muted); font-size: .9rem; font-weight: 400; }
.error { color: var(--bad); margin: 0; }
.notice {
  border-left: 4px solid var(--warn); background: var(--surface);
  padding: 12px 16px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--muted);
}
.badge {
  display: inline-block; font-size: .8rem; padding: 2px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted);
}

footer.site { border-top: 1px solid var(--border); padding: 20px 0; color: var(--muted); font-size: .9rem; }
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

.floorplan {
  background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius);
  min-height: 320px; display: grid; place-items: center; color: var(--muted); text-align: center; padding: 24px;
}

/* Tickets */
.status {
  display: inline-block; font-size: .8rem; font-weight: 600; padding: 2px 10px; border-radius: 999px;
  background: var(--border); color: var(--text);
}
.status.open { background: #e3f0fb; color: #1f5f8b; }
.status.in_progress { background: #fff3d6; color: #8a5300; }
.status.waiting { background: #fde7e5; color: #8f1f17; }
.status.resolved, .status.closed { background: #e2f3e3; color: #22602a; }
@media (prefers-color-scheme: dark) {
  .status.open { background: #1b3a52; color: #9cd0f5; }
  .status.in_progress { background: #4a3306; color: #ffd27a; }
  .status.waiting { background: #4e1a16; color: #ffb3ab; }
  .status.resolved, .status.closed { background: #173f1d; color: #9fe0a6; }
}
table.list { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
table.list th, table.list td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.list th { font-size: .85rem; color: var(--muted); font-weight: 600; }
table.list tr:last-child td { border-bottom: 0; }
table.list a { font-weight: 600; text-decoration: none; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; margin: 0 0 16px; }
.filters a { padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border); text-decoration: none; color: var(--muted); font-size: .9rem; }
.filters a[aria-current] { border-color: var(--accent); color: var(--accent); }
.thread { display: grid; gap: 12px; margin: 16px 0; }
.msg { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.msg.internal { border-style: dashed; }
.msg .meta { color: var(--muted); font-size: .85rem; margin-bottom: 6px; }
.msg .body { white-space: pre-wrap; margin: 0; }
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.row label { flex: 1 1 180px; }
.two { display: grid; gap: 24px; grid-template-columns: 2fr 1fr; }
@media (max-width: 720px) { .two { grid-template-columns: 1fr; } }
.kv { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: .95rem; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }