/* Layout: sticky ident bar with tabs; per tab a status card, entry form, then the log table */
:root {
  --bg: #eef1f2;
  --surface: #ffffff;
  --ink: #1b2326;
  --muted: #5d6a6f;
  --line: #d3dadc;
  --field: #f7f9f9;
  --accent: #c2700f;
  --accent-ink: #ffffff;
  --left: #2c6e8f;
  --right: #7a5a9e;
  --ok: #2f7d4f;
  --ok-bg: #e5f2ea;
  --warn: #9a6a00;
  --warn-bg: #fbf1d8;
  --bad: #b3362b;
  --bad-bg: #f9e3e0;
  --bar: #1b2326;
  --bar-ink: #e9eef0;
  --body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --display: "Barlow Condensed", "Arial Narrow", "Roboto Condensed", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12171a; --surface: #1a2125; --ink: #e4eaec; --muted: #94a2a7; --line: #2c363b; --field: #151b1e;
    --accent: #e8962f; --accent-ink: #1a1207; --left: #5fa8cc; --right: #b393d8;
    --ok: #6cc893; --ok-bg: #16281e; --warn: #e3b448; --warn-bg: #2a2412; --bad: #f07467; --bad-bg: #2e1715;
    --bar: #0c1013; --bar-ink: #e4eaec;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { background: var(--bg); color: var(--ink); font-family: var(--body); font-size: 15px; line-height: 1.45; }
[hidden] { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; margin: 0; }

/* ---- lock ---- */
.lock { min-height: 100vh; display: grid; place-items: center; padding: 24px max(16px, env(safe-area-inset-left)); }
.lock-card { width: 100%; max-width: 340px; background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--accent); border-radius: 6px; padding: 24px; display: grid; gap: 12px; }
.lock-card h1 { margin: 0; font-family: var(--display); font-size: 32px; font-weight: 700; }
.lock-card p { margin: 0; }
#pin { font-family: var(--mono); font-size: 28px; letter-spacing: .4em; text-align: center; padding: 12px; }
.eyebrow { font-family: var(--display); text-transform: uppercase; letter-spacing: .12em; font-size: 13px; color: var(--muted); font-weight: 600; }

/* ---- top bar ---- */
.top { position: sticky; top: 0; z-index: 5; background: var(--bar); color: var(--bar-ink); padding-top: env(safe-area-inset-top); }
.top-inner { max-width: 1040px; margin: 0 auto; padding: 10px max(16px, env(safe-area-inset-right)) 10px max(16px, env(safe-area-inset-left)); display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px; }
.ident { display: flex; align-items: baseline; gap: 8px; }
.tail { font-family: var(--mono); font-weight: 700; font-size: 20px; letter-spacing: .04em; }
.top .muted { color: #9fb0b6; }
.tabs { display: flex; gap: 4px; flex: 1; min-width: 0; overflow-x: auto; }
.tabs a { color: var(--bar-ink); text-decoration: none; font-family: var(--display); font-weight: 600; text-transform: uppercase; letter-spacing: .06em; font-size: 15px; padding: 6px 12px; border-radius: 4px; white-space: nowrap; opacity: .75; }
.tabs a[aria-current="page"] { background: var(--accent); color: var(--accent-ink); opacity: 1; }
.tabs a:hover { opacity: 1; }
.top .ghost { color: var(--bar-ink); border-color: #3a464c; }

/* ---- layout ---- */
.wrap { max-width: 1040px; margin: 0 auto; padding: 20px max(16px, env(safe-area-inset-right)) 48px max(16px, env(safe-area-inset-left)); }
.tab { display: grid; gap: 16px; }
.cards.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.cards.two.single, .grid.g2.single { grid-template-columns: minmax(0, 1fr); max-width: 520px; }
.card.eng.solo { --eng: var(--accent); }
fieldset.eng.solo { --eng: var(--accent); }
@media (max-width: 640px) { .cards.two { grid-template-columns: 1fr; } }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; display: grid; gap: 10px; }
.card.eng { border-top: 4px solid var(--eng); }
.eng.l { --eng: var(--left); } .eng.r { --eng: var(--right); }
.card h3 { margin: 0; font-family: var(--display); font-size: 20px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--eng, var(--ink)); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.stat .k { font-family: var(--display); text-transform: uppercase; letter-spacing: .08em; font-size: 12px; color: var(--muted); font-weight: 600; }
.stat .v { font-family: var(--mono); font-size: 20px; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat .v small { font-size: 12px; color: var(--muted); font-weight: 400; }
.foot { font-size: 13px; color: var(--muted); margin: 0; }

.card.status { border-left: 6px solid var(--state, var(--line)); }
.card.status.ok { --state: var(--ok); }
.card.status.warn { --state: var(--warn); }
.card.status.bad { --state: var(--bad); }
.status .headline { font-family: var(--display); font-size: 24px; font-weight: 700; margin: 0; }
.status p { margin: 0; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 16px; display: grid; gap: 14px; }
.panel h2 { margin: 0; font-family: var(--display); font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }

.grid { display: grid; gap: 12px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.span2 { grid-column: span 2; } .span3 { grid-column: span 3; }
@media (max-width: 760px) { .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .span3 { grid-column: span 2; } .g3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .g3 > :last-child { grid-column: span 2; } }
@media (max-width: 640px) { .g2 { grid-template-columns: 1fr; } }

fieldset { border: 1px solid var(--line); border-left: 4px solid var(--eng); border-radius: 4px; margin: 0; padding: 10px 12px 12px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; min-width: 0; }
legend { font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--eng); padding: 0 4px; }
fieldset .seg { grid-column: 1 / -1; }
.f { display: grid; gap: 4px; min-width: 0; }
.f label, .lbl { font-family: var(--display); text-transform: uppercase; letter-spacing: .08em; font-size: 12px; color: var(--muted); font-weight: 600; }
input { font: inherit; color: var(--ink); background: var(--field); border: 1px solid var(--line); border-radius: 4px; padding: 9px 10px; width: 100%; min-width: 0; }
input[type=number], input[type=date], input[type=time] { font-family: var(--mono); font-variant-numeric: tabular-nums; }
input:focus-visible, button:focus-visible, a:focus-visible, .seg input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }

/* segmented radio choices */
.seg { display: flex; flex-wrap: wrap; gap: 6px; }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.seg span { display: block; padding: 8px 12px; border: 1px solid var(--line); border-radius: 4px; background: var(--field); font-size: 14px; }
.seg input:checked + span { background: var(--ink); color: var(--surface); border-color: var(--ink); }
.seg.wide label { flex: 1; }
.seg.wide span { text-align: center; }

.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
button, .btn { font-family: var(--display); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: 15px; border-radius: 4px; padding: 10px 18px; cursor: pointer; border: 1px solid transparent; text-decoration: none; display: inline-block; }
.primary { background: var(--accent); color: var(--accent-ink); }
.primary:disabled { opacity: .5; cursor: not-allowed; }
.ghost { background: transparent; color: var(--muted); border-color: var(--line); padding: 5px 12px; font-size: 13px; }
.danger { background: var(--bad); color: #fff; padding: 5px 10px; font-size: 13px; }
.msg { font-size: 14px; color: var(--muted); }
.msg.err { color: var(--bad); }

/* tables */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 4px; }
table { border-collapse: collapse; width: 100%; min-width: 780px; font-size: 14px; }
table.narrow { min-width: 620px; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
thead th { font-family: var(--display); text-transform: uppercase; letter-spacing: .07em; font-size: 12px; color: var(--muted); font-weight: 600; background: var(--field); }
thead tr.grp th { border-bottom: none; padding-bottom: 0; }
th.l { color: var(--left); } th.r { color: var(--right); }
.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
th.num { font-family: var(--display); }
.sep { border-left: 2px solid var(--line); }
td.note { white-space: normal; min-width: 160px; color: var(--muted); }
tbody tr:last-child td { border-bottom: none; }
td.empty { padding: 28px 16px; text-align: center; color: var(--muted); white-space: normal; }
td.empty strong { display: block; color: var(--ink); font-family: var(--display); font-size: 18px; text-transform: uppercase; letter-spacing: .05em; margin-bottom: 4px; }
.pill { display: inline-block; font-size: 12px; font-weight: 600; padding: 2px 8px; border-radius: 999px; }
.pill.ok { background: var(--ok-bg); color: var(--ok); }
.pill.bad { background: var(--bad-bg); color: var(--bad); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* choice buttons inside a field keep normal text, not the label style */
.f .seg label { font-family: var(--body); text-transform: none; letter-spacing: 0; font-size: inherit; font-weight: 400; color: var(--ink); }
.seg input:checked + span { color: var(--surface); }

/* phone: tabs get their own full-width row under the tail number */
@media (max-width: 600px) {
  .ident { flex: 1; }
  .top #logout { order: 2; }
  .tabs { order: 3; flex-basis: 100%; }
  .tabs a { flex: 1; text-align: center; }
}

/* AD decision steps */
.step { display: grid; gap: 8px; padding-top: 12px; border-top: 1px solid var(--line); }
.step .lbl b { display: inline-grid; place-items: center; width: 20px; height: 20px; margin-right: 6px; border-radius: 50%; background: var(--ink); color: var(--surface); font-size: 12px; letter-spacing: 0; }
.attest { margin: 0; padding: 10px 12px; border-radius: 4px; background: var(--field); border: 1px solid var(--line); font-size: 14px; }
td.na { color: var(--muted); }

/* signature pad: always white "paper" with dark ink, in both themes */
.sigpad { position: relative; height: 160px; max-width: 560px; background: #fff; border: 1px solid var(--line); border-radius: 4px; touch-action: none; }
.sigpad canvas { position: absolute; inset: 0; width: 100%; height: 100%; cursor: crosshair; touch-action: none; }
.sigpad .sig-line { position: absolute; left: 16px; right: 16px; bottom: 36px; border-bottom: 1px solid #c9d1d4; pointer-events: none; }
.sigpad .sig-hint { position: absolute; left: 18px; bottom: 42px; color: #9aa6ab; font-size: 13px; pointer-events: none; }
.sigpad.signed .sig-hint { display: none; }
.sig-actions { display: flex; }
img.sig-thumb { height: 40px; width: auto; max-width: 160px; background: #fff; border: 1px solid var(--line); border-radius: 3px; vertical-align: middle; display: block; }
td.signer img { margin-bottom: 2px; }

/* logbook report dialog */
.head-actions { display: flex; flex-wrap: wrap; gap: 8px; }
dialog#repDialog { width: min(440px, calc(100vw - 32px)); max-height: calc(100dvh - 32px); padding: 0; border: 1px solid var(--line); border-radius: 8px; background: var(--surface); color: var(--ink); }
dialog#repDialog::backdrop { background: rgba(12, 16, 19, 0.55); }
#adReport { display: grid; gap: 14px; padding: 18px; }
.dlg-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.dlg-head h2 { margin: 0; font-family: var(--display); font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
#adReport .dates { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#adReport .quick { display: flex; flex-wrap: wrap; gap: 6px; }