/* Shared screen design (tokens and base components from drone-operations/index.html).
   Dark mode: :root[data-theme="dark"] (set by shared/theme.js). Print rules live in print.css. */
:root {
  --bg: #ffffff;
  --fg: #000000;
  --muted: #333333;
  --card: #f2f2f2;
  --border: #000000;
  --accent: #b30000;         /* fire-brigade red */
  --accent-fg: #ffffff;
  --ok: #006b1f;
  --ok-bg: #d9f5df;
  --warn-bg: #fff1b8;
  --danger: #b30000;
  --danger-bg: #ffe0e0;
  --btn: #000000;
  --btn-fg: #ffffff;
}
:root[data-theme="dark"] {
  --bg: #000000;
  --fg: #f5f5f5;
  --muted: #c8c8c8;
  --card: #141414;
  --border: #8a8a8a;
  --accent: #ff4d4d;
  --accent-fg: #000000;
  --ok: #6ee68a;
  --ok-bg: #0d2a14;
  --warn-bg: #3a3000;
  --danger: #ff6b6b;
  --danger-bg: #3a0000;
  --btn: #f5f5f5;
  --btn-fg: #000000;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  padding: 12px 16px calc(32px + env(safe-area-inset-bottom));
  background: var(--bg);
  color: var(--fg);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 20px;
  line-height: 1.4;
}
main { max-width: 640px; margin: 0 auto; }

header {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin-bottom: 12px;
}
h1 { font-size: 1.3rem; margin: 0; }
.page-title { margin: 0 0 12px; font-size: 1.5rem; }
h2 { font-size: 1.05rem; margin: 0 0 8px; text-transform: uppercase; letter-spacing: .03em; }

.card {
  background: var(--card);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  margin-bottom: 14px;
}

button, .btn {
  display: block; width: 100%;
  min-height: 64px;
  padding: 14px 16px;
  font: inherit; font-weight: 700; font-size: 1.15rem;
  border: 3px solid var(--border);
  border-radius: 12px;
  background: var(--btn); color: var(--btn-fg);
  cursor: pointer;
  text-align: center; text-decoration: none;
  touch-action: manipulation;
}
button:active { transform: scale(.98); }
button:disabled { opacity: .6; }
.btn-primary { background: var(--accent); color: var(--accent-fg); border-color: var(--accent); font-size: 1.3rem; min-height: 76px; }
.btn-small { width: auto; min-height: 56px; font-size: 1rem; padding: 8px 14px; display: flex; align-items: center; justify-content: center; }
.btn-secondary { background: transparent; color: var(--fg); }

.row { margin: 6px 0; }
.label { font-size: .85rem; color: var(--muted); font-weight: 600; }
.value { font-size: 1.35rem; font-weight: 700; word-break: break-word; font-variant-numeric: tabular-nums; }
.value.big { font-size: 1.6rem; }
.small { font-size: .85rem; color: var(--muted); }
.hidden { display: none !important; }

.msg { border-radius: 10px; padding: 12px; margin: 10px 0; font-weight: 600; border: 2px solid; }
.msg.error { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.msg.warn  { background: var(--warn-bg); color: var(--fg); border-color: var(--fg); }

.zones { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.zones button { min-height: 68px; background: transparent; color: var(--fg); }
.zones button[aria-pressed="true"] { background: var(--btn); color: var(--btn-fg); outline: 4px solid var(--accent); outline-offset: 2px; }
.zones button.wide { grid-column: span 2; }

.result {
  border: 4px solid var(--border); border-radius: 12px;
  padding: 16px; text-align: center; margin-top: 8px;
}
.result .num { font-size: 4rem; font-weight: 800; line-height: 1.05; font-variant-numeric: tabular-nums; }
.result .sub { font-size: 1rem; font-weight: 600; }
.result.ok { background: var(--ok-bg); border-color: var(--ok); color: var(--ok); }
.result.danger { background: var(--danger-bg); border-color: var(--danger); color: var(--danger); }
.result.info { background: var(--card); }
.formula { font-size: .9rem; margin-top: 8px; color: var(--fg); font-weight: 500; }

.manual { display: flex; gap: 10px; align-items: center; margin-top: 10px; }
.manual input {
  flex: 1; min-width: 0; min-height: 56px;
  font: inherit; font-size: 1.3rem; font-weight: 700;
  padding: 8px 12px; border: 3px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--fg);
}

.unit-toggle { display: flex; gap: 8px; }
.unit-toggle button { width: 76px; min-height: 56px; background: transparent; color: var(--fg); padding: 8px; }
.unit-toggle button[aria-pressed="true"] { background: var(--btn); color: var(--btn-fg); }

.out-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 12px; }
.out-grid .cell { border: 2px solid var(--border); border-radius: 10px; padding: 10px; background: var(--bg); }
.out-grid .cell.wide { grid-column: span 2; }
.out-grid .value { font-size: 1.5rem; }

ul.notes { margin: 0; padding-left: 1.2em; }
ul.notes li { margin: 8px 0; }
a { color: var(--accent); font-weight: 700; }

.stack > * + * { margin-top: 10px; }

/* Tablet / landscape: two columns, notes full width below */
@media (min-width: 768px) {
  body { padding: 16px 24px calc(32px + env(safe-area-inset-bottom)); }
  main { max-width: 1200px; }
  /* minmax(0, 1fr) keeps both columns equal even if content is wide */
  .layout { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; align-items: start; }
  .page-title { font-size: 1.7rem; }
}
/* Large tablets (landscape): notes in two columns */
@media (min-width: 1100px) {
  ul.notes { columns: 2; column-gap: 32px; }
  ul.notes li { break-inside: avoid; }
}

/* Additional shared components */
.steps { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0; }
.chip { display: inline-block; padding: 4px 12px; border: 2px solid var(--border); border-radius: 999px; font-weight: 700; font-size: .9rem; background: var(--bg); }
.chip.ok { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
.chip.danger { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.chip.warn { background: var(--warn-bg); }
.result.warn { background: var(--warn-bg); border-color: var(--fg); }
@media print { .no-print { display: none !important; } }