/* WSS Fleet Tracker — v1.0 theme.
   Phone-first (390x844), desktop is a bonus. No external fonts or assets.
   Palette: WSS red, slate gray, white. Semantic green/amber/red only for
   readiness, where techs read the color. */

:root {
  --red: #B71C1C;
  --red-deep: #8E1414;
  --red-soft: #FBE9E9;

  --slate-900: #0F172A;
  --slate-800: #1E293B;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748B;
  --slate-400: #94A3B8;
  --slate-300: #CBD5E1;
  --slate-200: #E2E8F0;
  --slate-100: #F1F5F9;
  --slate-50:  #F8FAFC;
  --white: #FFFFFF;

  --ok: #15803D;      --ok-bg: #DCFCE7;
  --warn: #B45309;    --warn-bg: #FEF3C7;
  --bad: #B91C1C;     --bad-bg: #FEE2E2;
  --rent: #1D4ED8;    --rent-bg: #DBEAFE;   /* ON-RENT: earning, not available. 6.3:1 on white */

  --ink: var(--slate-900);
  --ink-2: var(--slate-600);
  --ink-3: var(--slate-500);
  --line: var(--slate-200);
  --bg: var(--slate-100);
  --card: var(--white);

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .05), 0 2px 8px rgba(15, 23, 42, .06);
  --shadow-up: 0 -1px 0 var(--line), 0 -6px 16px rgba(15, 23, 42, .05);
  --tap: 44px;
  --tabs-h: 60px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
svg { display: block; }

/* ------------------------------------------------------------------ header */

.hdr {
  position: sticky;
  top: 0;
  z-index: 20;
  color: var(--white);
  background: linear-gradient(160deg, #C62828 0%, var(--red) 55%, var(--red-deep) 100%);
  padding: max(env(safe-area-inset-top), 10px) 0 10px;
  box-shadow: 0 2px 12px rgba(142, 20, 20, .25);
}
.hdr-in { max-width: 760px; margin: 0 auto; padding: 0 16px; }
.hdr-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.brand { display: flex; align-items: center; gap: 10px; min-height: 36px; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: rgba(255, 255, 255, .14);
  display: grid; place-items: center; flex: 0 0 auto;
}
.brand-mark svg { width: 18px; height: 18px; }
.brand-name { font-weight: 700; font-size: 18px; letter-spacing: .2px; line-height: 1.1; }
.brand-ver {
  font-size: 10.5px; font-weight: 700; letter-spacing: .6px;
  padding: 2px 7px; border-radius: 999px;
  background: rgba(255, 255, 255, .18); color: var(--white);
  vertical-align: 2px; margin-left: 7px;
}

.refresh {
  width: 38px; height: 38px; border-radius: 10px; border: 0;
  background: rgba(255, 255, 255, .14); color: var(--white);
  display: grid; place-items: center; cursor: pointer;
  transition: background .15s;
}
.refresh svg { width: 18px; height: 18px; }
.refresh:active { background: rgba(255, 255, 255, .3); }
.refresh.spin svg { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.hdr-meta {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin-top: 6px; font-size: 12.5px; color: rgba(255, 255, 255, .82);
}
.asof.stale { color: #FDE68A; font-weight: 600; }
.pending-badge {
  margin-left: auto;
  background: var(--white); color: var(--red-deep);
  border-radius: 999px; padding: 2px 10px; font-weight: 700; font-size: 12px;
  white-space: nowrap;
}

/* -------------------------------------------------------------------- main */

.view {
  padding: 16px 16px calc(var(--tabs-h) + env(safe-area-inset-bottom) + 20px);
  max-width: 760px;
  margin: 0 auto;
  outline: none;
}
.loading, .empty { padding: 40px 16px; text-align: center; color: var(--ink-3); }
.empty strong { display: block; color: var(--ink-2); margin-bottom: 4px; font-size: 16px; }

h1 { font-size: 22px; font-weight: 750; letter-spacing: -.2px; margin: 4px 0 14px; color: var(--slate-900); }
h2 {
  font-size: 12px; font-weight: 700; letter-spacing: .9px; text-transform: uppercase;
  color: var(--ink-3); margin: 24px 0 10px;
}
.sub { font-size: 13.5px; color: var(--ink-2); margin: -8px 0 14px; }

.crumb {
  display: inline-flex; align-items: center; gap: 4px;
  min-height: 36px; margin-bottom: 4px;
  color: var(--red); font-weight: 650; font-size: 14px;
}

/* ------------------------------------------------------------------- cards */

.card {
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
  margin-bottom: 12px;
}
a.card { transition: transform .12s, box-shadow .12s; }
a.card:active { transform: scale(.985); box-shadow: none; }

.chev { color: var(--slate-300); flex: 0 0 auto; }
.chev svg { width: 20px; height: 20px; }

/* fleet-utilization bar (D19) */
.util {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px 12px; margin-bottom: 14px;
  --fill: var(--slate-400); --tint: var(--slate-100); --ink-band: var(--slate-600);
}
.util-red    { --fill: #EF4444; --tint: #FEE2E2; --ink-band: #B91C1C; }
.util-yellow { --fill: #F59E0B; --tint: #FEF3C7; --ink-band: #B45309; }
.util-green  { --fill: #22C55E; --tint: #DCFCE7; --ink-band: #15803D; }
.util-row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.util-t { font-size: 12px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--ink-3); }
.util-v { display: flex; align-items: baseline; gap: 8px; }
.util-v strong { font-size: 22px; font-weight: 750; letter-spacing: -.3px; color: var(--slate-900); font-variant-numeric: tabular-nums; }
.util-l {
  font-size: 11px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; background: var(--tint); color: var(--ink-band);
}
.util-track { height: 8px; border-radius: 999px; background: var(--slate-200); overflow: hidden; margin: 10px 0 8px; }
.util-fill { height: 100%; border-radius: 999px; background: var(--fill); transition: width .4s ease; }
.util-s { font-size: 12.5px; color: var(--ink-3); }

/* category cards */
.cat-card { display: flex; align-items: center; gap: 14px; min-height: 76px; }
.cat-body { flex: 1 1 auto; min-width: 0; }
.cat-name { display: block; font-weight: 650; font-size: 16.5px; color: var(--slate-900); }
.cat-sub { display: block; font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.cat-sub .n { font-weight: 700; color: var(--slate-800); }
.cat-sub .zero { color: var(--slate-400); }
.cat-sub .sep { color: var(--slate-300); margin: 0 4px; }

/* availability light: a dot with a soft ring, not an emoji */
.dot {
  width: 16px; height: 16px; border-radius: 50%; flex: 0 0 auto;
  box-shadow: 0 0 0 5px var(--ring);
}
.dot-g { background: #22C55E; --ring: rgba(34, 197, 94, .18); }
.dot-y { background: #F59E0B; --ring: rgba(245, 158, 11, .2); }
.dot-r { background: #EF4444; --ring: rgba(239, 68, 68, .18); }
h1 .dot { display: inline-block; width: 12px; height: 12px; margin: 0 12px 2px 4px; vertical-align: middle; box-shadow: 0 0 0 4px var(--ring); }

/* ------------------------------------------------------------------- chips */

.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.chip {
  font-size: 10.5px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
  background: var(--slate-100); color: var(--slate-600); border: 1px solid transparent;
}
.chip.ok      { background: var(--ok-bg);   color: var(--ok); }
.chip.warn    { background: var(--warn-bg); color: var(--warn); }
.chip.bad     { background: var(--bad-bg);  color: var(--bad); }
.chip.hold    { background: var(--slate-700); color: var(--white); }
.chip.rent    { background: var(--rent-bg); color: var(--rent); }
.chip.out     { background: var(--white); color: var(--slate-600); border-color: var(--slate-300); }
.chip.pending { background: var(--red-soft); color: var(--red-deep); }

/* -------------------------------------------------------------- unit rows */

.unit-row { display: flex; align-items: center; gap: 12px; }
.unit-main { flex: 1 1 auto; min-width: 0; }
.unit-title { display: block; font-weight: 650; font-size: 15.5px; color: var(--slate-900); }
.unit-loc { display: block; font-size: 13px; color: var(--ink-3); margin-top: 2px; }
.unit-serial { font-family: var(--mono); font-size: 12.5px; color: var(--slate-700); letter-spacing: .2px; }

/* ------------------------------------------------------------ detail sheet */

.detail-head { margin-bottom: 14px; }
.detail-head .h { font-size: 23px; font-weight: 750; letter-spacing: -.3px; color: var(--slate-900); }
.detail-head .s { color: var(--ink-3); font-size: 14px; margin-top: 3px; }
.detail-head .s .unit-serial { font-size: 13.5px; }

.kv { margin: 0; }
.kv-row {
  display: flex; justify-content: space-between; gap: 16px;
  padding: 10px 0; border-bottom: 1px solid var(--slate-100);
  font-size: 14.5px;
}
.kv-row:last-child { border-bottom: 0; padding-bottom: 2px; }
.kv-row:first-child { padding-top: 2px; }
.kv-row dt { color: var(--ink-3); flex: 0 0 auto; }
.kv-row dd { margin: 0; text-align: right; font-weight: 600; color: var(--slate-800); word-break: break-word; }
.kv-row dd.num { font-variant-numeric: tabular-nums; }
.kv-row dd.muted { font-weight: 400; color: var(--slate-400); }
.kv-row dd .none { color: var(--bad); }

.note, .alert, .info {
  border-radius: var(--radius-sm); padding: 11px 14px; font-size: 14px; margin: 10px 0;
  border: 1px solid transparent;
}
.note  { background: var(--warn-bg); border-color: #FDE68A; color: #78350F; }
.note strong { display: block; margin-bottom: 3px; color: #92400E; }
.alert { background: var(--bad-bg); border-color: #FECACA; color: #991B1B; font-weight: 600; margin: 8px 0 0; }
.info  { background: var(--slate-50); border-color: var(--line); color: var(--slate-700); font-size: 13.5px; }

/* ----------------------------------------------------------------- actions */

.actions { margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.btn {
  display: block; width: 100%; min-height: var(--tap);
  border: 0; border-radius: 12px; padding: 12px 16px;
  background: var(--red); color: var(--white); font-weight: 650; font-size: 16px;
  cursor: pointer; text-align: center;
  box-shadow: 0 2px 8px rgba(183, 28, 28, .28);
  transition: transform .12s, background .15s;
}
.btn:active { background: var(--red-deep); transform: scale(.985); }
.btn[disabled] { background: var(--slate-300); box-shadow: none; cursor: default; }
.btn.ghost { background: var(--white); color: var(--slate-800); border: 1px solid var(--slate-300); box-shadow: none; }
.btn.ghost:active { background: var(--slate-100); }

form.write {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px; margin-top: 14px;
}
form.write label {
  display: block; font-size: 12px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase;
  color: var(--ink-3); margin: 12px 0 6px;
}
form.write label:first-child { margin-top: 0; }
form.write input, form.write select, form.write textarea {
  width: 100%; min-height: var(--tap); padding: 10px 12px; font: inherit;
  border: 1px solid var(--slate-300); border-radius: var(--radius-sm);
  background: var(--white); color: var(--ink);
}
form.write input:focus, form.write select:focus, form.write textarea:focus {
  outline: 2px solid var(--red); outline-offset: -1px; border-color: var(--red);
}
form.write textarea { min-height: 80px; resize: vertical; }
.form-note { font-size: 12.5px; color: var(--ink-3); margin-top: 10px; }

/* ------------------------------------------------ recurring revenue (D21) */

.rev {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 14px 16px; margin-bottom: 4px;
  border-left: 4px solid var(--red);
}
.rev-h { font-size: 12px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--ink-3); }
.rev-v { font-size: 30px; font-weight: 750; letter-spacing: -.5px; color: var(--slate-900); font-variant-numeric: tabular-nums; margin-top: 4px; line-height: 1.1; }
.rev-s { font-size: 13px; color: var(--ink-3); margin-top: 2px; }
.rev-m { font-size: 14px; font-weight: 600; color: var(--slate-700); margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--slate-100); font-variant-numeric: tabular-nums; }

/* ----------------------------------------------------- status board (D20) */

.board {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 12px 16px 6px; margin-bottom: 16px;
}
.board-h {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; font-weight: 700; letter-spacing: .8px; text-transform: uppercase; color: var(--ink-3);
  padding-bottom: 8px; border-bottom: 2px solid var(--slate-100); margin-bottom: 4px;
}
.board-h .c { background: var(--slate-100); color: var(--slate-700); font-size: 12px; border-radius: 999px; padding: 1px 9px; letter-spacing: 0; text-transform: none; }
.brow {
  display: grid; grid-template-columns: 6.2em 2.2em 1fr 3.2em; align-items: center; gap: 10px;
  padding: 8px 0; border-bottom: 1px solid var(--slate-100); font-size: 14px;
  --fill: var(--slate-400);
}
.brow:last-child { border-bottom: 0; }
.brow-rent   { --fill: #1D4ED8; }
.brow-demo   { --fill: #60A5FA; }
.brow-loaner { --fill: #64748B; }
.brow-ok     { --fill: #22C55E; }
.brow-warn   { --fill: #F59E0B; }
.brow-bad    { --fill: #EF4444; }
.brow-l { font-weight: 600; color: var(--slate-800); white-space: nowrap; }
.brow-n { font-weight: 750; text-align: right; font-variant-numeric: tabular-nums; color: var(--slate-900); }
.brow-track { display: block; height: 8px; border-radius: 999px; background: var(--slate-100); overflow: hidden; }
.brow-fill { display: block; height: 100%; border-radius: 999px; background: var(--fill); }
.brow-p { text-align: right; font-size: 12.5px; color: var(--ink-3); font-variant-numeric: tabular-nums; }
.brow.zero { --fill: var(--slate-300); }
.brow.zero .brow-l, .brow.zero .brow-n, .brow.zero .brow-p { color: var(--slate-400); }

/* ---------------------------------------------------------------- kanban */

.kanban { display: grid; gap: 14px; }
.kan-col {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 12px 16px;
}
.kan-head {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 700; font-size: 12px; letter-spacing: .8px; text-transform: uppercase; color: var(--red);
  padding-bottom: 8px; border-bottom: 2px solid var(--slate-100);
}
.kan-head .c {
  background: var(--slate-100); color: var(--slate-700); font-size: 12px;
  border-radius: 999px; padding: 1px 9px; letter-spacing: 0;
}
.kan-card { border-top: 1px solid var(--slate-100); padding: 10px 0 8px; font-size: 14px; }
.kan-card:first-of-type { border-top: 0; }
.kan-card:last-child { padding-bottom: 2px; }
.kan-t { font-weight: 650; color: var(--slate-900); }
.kan-s { color: var(--ink-2); font-size: 13px; }
.kan-empty { padding: 12px 0 4px; color: var(--slate-400); font-size: 13px; }

/* ------------------------------------------------------------------- tabs */

.tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20;
  display: flex; justify-content: center;
  background: rgba(255, 255, 255, .92);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: var(--shadow-up);
  padding-bottom: env(safe-area-inset-bottom);
}
.tab {
  flex: 1 1 0; max-width: 190px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; min-height: var(--tabs-h);
  font-size: 11px; font-weight: 650; letter-spacing: .2px; color: var(--slate-500);
  position: relative; transition: color .15s;
}
.tab svg { width: 22px; height: 22px; }
.tab.on { color: var(--red); }
.tab.on::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 28px; height: 3px; border-radius: 0 0 3px 3px; background: var(--red);
}

/* ---------------------------------------------------------------- desktop */

@media (min-width: 720px) {
  .kanban { grid-template-columns: repeat(3, 1fr); }
  .view { padding-top: 22px; }
}