/* DRONE SIM Control Tower. © 2026 Muhammad Daud Chaudhry. All rights reserved. */
:root {
  color-scheme: light;
  --bg: #f4f4f2;
  --surface: #fcfcfb;
  --surface-2: #efeeea;
  --line: #dddcd6;
  --text: #0b0b0b;
  --text-2: #52514e;
  --text-3: #75746f;
  --accent: #2a78d6;
  --accent-ink: #ffffff;
  --good: #0ca30c;
  --warning: #fab219;
  --serious: #ec835a;
  --critical: #d03b3b;
  --bar: #2a78d6;
  --radius: 12px;
  --gap: 12px;
  font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    color-scheme: dark;
    --bg: #111110;
    --surface: #1a1a19;
    --surface-2: #242422;
    --line: #34332f;
    --text: #f0efec;
    --text-2: #c3c2b7;
    --text-3: #9a998f;
    --accent: #3987e5;
    --bar: #3987e5;
  }
}
:root[data-theme='dark'] {
  color-scheme: dark;
  --bg: #111110;
  --surface: #1a1a19;
  --surface-2: #242422;
  --line: #34332f;
  --text: #f0efec;
  --text-2: #c3c2b7;
  --text-3: #9a998f;
  --accent: #3987e5;
  --bar: #3987e5;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.45; }
a { color: var(--accent); }
button, input, textarea, select { font: inherit; color: inherit; }
a.btn { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border-radius: 10px; font-weight: 600; text-decoration: none; background: var(--accent); color: var(--accent-ink); }
button {
  min-height: 40px; padding: 0 14px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface);
  cursor: pointer; font-weight: 600;
}
button:hover { background: var(--surface-2); }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
button.primary:hover { filter: brightness(1.08); }
button:disabled { opacity: 0.55; cursor: default; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
input, textarea, select { background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: 9px 11px; width: 100%; }
textarea { resize: vertical; min-height: 110px; }
.muted { color: var(--text-3); }
.small { font-size: 13px; }

/* top bar */
header.top {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
header.top h1 { font-size: 16px; margin: 0; flex: 1; letter-spacing: 0.02em; }
header.top h1 span { color: var(--text-3); font-weight: 500; }
.badge { font-size: 11px; font-weight: 700; padding: 2px 8px; border-radius: 99px; background: var(--surface-2); color: var(--text-2); text-transform: uppercase; letter-spacing: 0.06em; }
.badge.preview { background: #fab21933; color: var(--text); }
header.top form { margin: 0; }
header.top button { min-height: 34px; padding: 0 10px; font-size: 13px; }
#updated { font-size: 12px; }

main { max-width: 1180px; margin: 0 auto; padding: 14px 16px 120px; display: grid; gap: var(--gap); }
.grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
@media (min-width: 860px) { .grid.two { grid-template-columns: 1fr 1fr; } }

section.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; min-width: 0; }
section.card > h2 { font-size: 13px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-2); display: flex; align-items: center; gap: 8px; }
section.card > h2 .grow { flex: 1; }
.empty { color: var(--text-3); margin: 4px 0; }

/* tiles */
.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (min-width: 640px) { .tiles { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.tile { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; min-width: 0; }
.tile .label { font-size: 12px; color: var(--text-2); }
.tile .value { font-size: 28px; font-weight: 700; font-variant-numeric: tabular-nums; line-height: 1.15; margin-top: 2px; }
.tile .sub { font-size: 12px; color: var(--text-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile .value.na { color: var(--text-3); font-size: 18px; font-weight: 600; padding: 5px 0; }

/* ask */
.ask { display: grid; gap: 10px; }
.ask-row { display: flex; gap: 8px; }
.ask-row input { flex: 1; min-width: 0; }
#mic {
  width: 52px; min-width: 52px; height: 52px; border-radius: 50%; padding: 0; display: grid; place-items: center;
  background: var(--accent); color: var(--accent-ink); border: none; touch-action: none; user-select: none; -webkit-user-select: none;
}
#mic svg { width: 24px; height: 24px; }
#mic.listening { background: var(--critical); box-shadow: 0 0 0 6px color-mix(in srgb, var(--critical) 25%, transparent); }
.ask-row input { min-height: 52px; }
#askSend { min-height: 52px; }
.answer { background: var(--surface-2); border-radius: 10px; padding: 10px 12px; white-space: pre-wrap; }
.answer .src { display: block; margin-top: 6px; font-size: 12px; color: var(--text-3); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips button { min-height: 32px; font-size: 13px; font-weight: 500; border-radius: 99px; }

/* briefing */
.briefing-text { white-space: pre-wrap; margin: 0; }
.briefing-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; align-items: center; }
.briefing-tools select { width: auto; }
.switch { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; color: var(--text-2); }
.switch input { width: auto; }
details.plain { margin-top: 10px; }
details.plain summary { cursor: pointer; color: var(--text-2); font-size: 13px; }

/* lists */
ul.list { list-style: none; margin: 0; padding: 0; }
ul.list li { padding: 8px 0; border-top: 1px solid var(--line); display: flex; gap: 10px; align-items: baseline; min-width: 0; }
ul.list li:first-child { border-top: none; }
ul.list .when { color: var(--text-3); font-size: 12px; white-space: nowrap; font-variant-numeric: tabular-nums; }
ul.list .what { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.kind { font-size: 12px; font-weight: 600; padding: 1px 7px; border-radius: 6px; background: var(--surface-2); color: var(--text-2); white-space: nowrap; }

/* status: icon + label, never colour alone */
.status { display: inline-flex; gap: 6px; align-items: center; font-size: 13px; font-weight: 600; white-space: nowrap; }
.status::before { content: ''; width: 10px; height: 10px; border-radius: 50%; background: var(--c); flex: none; }
.status.good { --c: var(--good); }
.status.warning { --c: var(--warning); }
.status.critical { --c: var(--critical); }
.status.info { --c: var(--text-3); }
.alert { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-top: 1px solid var(--line); }
.alert:first-child { border-top: none; }
.alert .status { min-width: 84px; }

/* chart */
.bars { display: flex; align-items: flex-end; gap: 2px; height: 120px; padding-top: 8px; border-bottom: 1px solid var(--line); position: relative; }
.bars .b { flex: 1; display: flex; align-items: flex-end; height: 100%; position: relative; cursor: default; }
.bars .b i { display: block; width: 100%; background: var(--bar); border-radius: 4px 4px 0 0; min-height: 1px; }
.bars .b:hover i, .bars .b:focus i { filter: brightness(1.15); }
.bars .tip {
  position: absolute; bottom: calc(100% + 6px); left: 50%; transform: translateX(-50%); background: var(--text); color: var(--bg);
  font-size: 12px; padding: 4px 8px; border-radius: 6px; white-space: nowrap; pointer-events: none; display: none; z-index: 2;
}
.bars .b:hover .tip, .bars .b:focus .tip { display: block; }
.axis { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* content studio */
.tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.tabs button[aria-pressed='true'] { background: var(--accent); color: var(--accent-ink); border-color: transparent; }
.posts { display: grid; gap: 12px; margin-top: 12px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .posts { grid-template-columns: 1fr 1fr; } }
.post { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: grid; background: var(--surface); }
.post .media { background: var(--surface-2); aspect-ratio: 16 / 9; }
.post .media img, .post .media video { width: 100%; height: 100%; object-fit: cover; display: block; }
.post .body { padding: 12px; display: grid; gap: 8px; }
.post .meta { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--text-2); }
.post .caption { white-space: pre-wrap; margin: 0; }
.post .tags { color: var(--accent); font-size: 14px; overflow-wrap: anywhere; }
.post .actions { display: flex; gap: 8px; flex-wrap: wrap; }
.post .claims { font-size: 12px; color: var(--text-3); }

.toast { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 10px; font-size: 14px; z-index: 20; max-width: calc(100vw - 32px); }

/* login */
body.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; }
.login-box { width: 100%; max-width: 360px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.login-box h1 { font-size: 18px; margin: 0 0 18px; }
.login-box h1 span { display: block; color: var(--text-3); font-weight: 500; font-size: 14px; }
.login-box form { display: grid; gap: 10px; }
.login-box label { font-size: 13px; color: var(--text-2); }
.login-box button { background: var(--accent); color: var(--accent-ink); border: none; min-height: 44px; }
.err { color: var(--critical); margin: 0; font-size: 14px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* narrow phones */
header.top h1 { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
section.card > h2 { flex-wrap: wrap; }
@media (max-width: 560px) {
  header.top { padding: 8px 12px; gap: 6px; }
  header.top h1 span { display: none; }
  #timeline li, #releases li, #deploys li, #pending li { flex-wrap: wrap; gap: 4px 8px; }
  #timeline li .what, #releases li .what, #deploys li .what, #pending li .what { flex-basis: 100%; order: 3; }
  #timeline li .what, #releases li .what, #deploys li .what, #pending li .what { font-size: 14px; }
  .alert .status { min-width: 72px; }
  .tile .value { font-size: 24px; }
  main { padding: 12px 12px 100px; }
}

/* ask box: 16px text so iPhone Safari does not zoom on focus */
#q { font-size: 16px; min-height: 52px; resize: none; line-height: 1.4; }
.ask-row { align-items: center; }
.mic-info { flex: 1; min-width: 0; display: grid; gap: 2px; font-size: 13px; color: var(--text-2); }
#micState { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#mic.busy { background: var(--text-3); }
button.linkish { min-height: 0; padding: 0; border: none; background: none; color: var(--accent); font-weight: 500; font-size: 12px; text-align: left; justify-self: start; }
button.linkish:hover { background: none; text-decoration: underline; }
#mic { -webkit-touch-callout: none; }
button.linkish:disabled { color: var(--text-3); opacity: 1; cursor: default; text-decoration: none; }
.speak-row { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; }
#voicePick { width: auto; max-width: 100%; min-height: 36px; padding: 4px 8px; font-size: 14px; }