/* Archivo by the Archivo Project Authors, SIL Open Font License 1.1 (see fonts/Archivo-OFL.txt) */
@font-face {
  font-family: "Archivo";
  src: url("fonts/Archivo.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}

:root {
  --bg: #f6f7f8;
  --card: #ffffff;
  --text: #1c1f23;
  --muted: #6b7280;
  --line: #e3e5e8;
  --accent: #010057; /* navy, same as the wordmark */
  --dot: #da291c;
  --ink: var(--accent); /* wordmark */
  --free: #2e7d32;
  --soon: #b26a00;
  --busy: #9a3b3b;
  --chip-bg: #eceef1;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121417;
    --card: #1b1e22;
    --text: #e6e8eb;
    --muted: #9aa1ab;
    --line: #2c3036;
    --accent: #3a3aa8; /* lighter navy, so it stands out on the dark background */
    --ink: var(--text);
    --free: #6cc070;
    --soon: #e0a040;
    --busy: #e08080;
    --chip-bg: #262a30;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
}

header, main, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }
header { padding: 20px 16px 16px; }
.brand { display: grid; gap: 4px; }
.tagline { margin: 0; color: var(--muted); font-size: 0.95rem; }
h1 { margin: 0; line-height: 1; }
.wordmark {
  font-family: "Archivo", system-ui, sans-serif;
  font-weight: 800;
  font-stretch: 87.5%;
  font-size: 3.6rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.wordmark .dot {
  display: inline-block;
  width: 0.2em;
  height: 0.2em;
  margin-left: 0.05em;
  border-radius: 50%;
  background: var(--dot);
}
h2 { font-size: 1rem; margin: 0; display: inline; }
.muted { color: var(--muted); font-weight: normal; }
#asof { margin: 8px 2px 0; font-size: 0.85rem; min-height: 1.2em; }

.controls {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 14px;
  display: grid;
  gap: 12px;
}
.field { display: grid; gap: 6px; }
.label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted); }
summary.label { cursor: pointer; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
#filters[open] > .row { margin: 8px 0; }

.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  border: 1px solid transparent;
  background: var(--chip-bg);
  color: var(--text);
  border-radius: 999px;
  padding: 5px 12px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.chip.on { background: var(--accent); color: #fff; }
.chip small { opacity: 0.7; margin-left: 4px; }
.chip.more { background: transparent; border-color: var(--line); color: var(--muted); }
.chips .empty { color: var(--muted); font-size: 0.9rem; }

input[type=date], input[type=time], input[type=number] {
  font: inherit;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  color: var(--text);
}
input:disabled { opacity: 0.45; }
input[type=number] { width: 6em; }

.message { padding: 10px 14px; border-radius: 10px; background: var(--card); border: 1px solid var(--line); }

#results { margin: 12px 0 40px; display: grid; gap: 16px; }
.group[hidden] { display: none; }
.group > summary { cursor: pointer; list-style-position: inside; }
.group ul { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.count { color: var(--muted); font-weight: normal; }

.room {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--muted);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
}
.room.free { border-left-color: var(--free); }
.room.soon { border-left-color: var(--soon); }
.room.busy { border-left-color: var(--busy); }
.room.short { opacity: 0.5; }

.room .top { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; }
.room .name { font-weight: 600; color: var(--text); text-decoration: none; }
.room .name:hover { text-decoration: underline; }
.room .when { font-weight: 600; text-align: right; white-space: nowrap; }
.room.free .when { color: var(--free); }
.room.soon .when { color: var(--soon); }
.room.busy .when { color: var(--busy); }
.room .meta { font-size: 0.85rem; color: var(--muted); }
.room .detail { display: none; font-size: 0.88rem; margin-top: 4px; }
.room.open .detail { display: block; }

/* keep long labels from widening the page on narrow screens */
.controls, #results, .group ul { grid-template-columns: minmax(0, 1fr); }
.room .top { min-width: 0; }
.room .name { flex-shrink: 0; }
.room .when { white-space: normal; }

.message.warning { border-left: 4px solid var(--soon); display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.message.warning[hidden] { display: none; }

footer { margin-bottom: 32px; font-size: 0.9rem; color: var(--muted); }
footer summary { cursor: pointer; }
footer a { color: inherit; }