:root {
  --navy: #0b2341;
  --navy-2: #15395f;
  --blue: #2d7ff9;
  --ice: #eef5fc;
  --paper: #f7f9fc;
  --ink: #142033;
  --muted: #637083;
  --line: #dce5ef;
  --red: #c73535;
  --amber: #d7861a;
  --green: #18835a;
  --shadow: 0 10px 32px rgba(13, 42, 77, .10);
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select { font: inherit; }
button { cursor: pointer; touch-action: manipulation; }
button:disabled { cursor: not-allowed; opacity: .5; box-shadow: none; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: max(16px, env(safe-area-inset-top)) 20px 14px; color: white; background: var(--navy); box-shadow: 0 3px 16px rgba(0,0,0,.15); }
.topbar h1 { margin: 2px 0 0; font-size: clamp(18px, 5vw, 26px); }
.eyebrow, .label { color: #7390ae; font-weight: 800; font-size: 11px; letter-spacing: .11em; }
.topbar .eyebrow { color: #9fc1e3; }
main { width: min(760px, 100%); margin: 0 auto; padding: 22px 16px calc(30px + env(safe-area-inset-bottom)); }
.screen { display: none; animation: enter .22s ease-out; }
.screen.active { display: block; }
@keyframes enter { from { opacity: 0; transform: translateY(5px); } }
.card { background: white; border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.hero { display: flex; gap: 18px; align-items: center; padding: 22px; background: linear-gradient(135deg, white 30%, var(--ice)); }
.hero-mark { display: grid; flex: 0 0 72px; height: 72px; place-items: center; border-radius: 20px; color: white; background: var(--navy); font-weight: 900; font-size: 25px; }
h2 { margin: 8px 0 12px; font-size: clamp(24px, 7vw, 34px); letter-spacing: -.03em; }
h3 { margin-top: 0; }
p { line-height: 1.5; }
.hero p, small { color: var(--muted); }
.status-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 16px 0; }
.status-card { padding: 18px; }
.status-card strong, .status-card small { display: block; margin-top: 7px; }
.actions { display: grid; gap: 10px; margin: 18px 0; }
button { border: 0; border-radius: 13px; padding: 14px 17px; font-weight: 800; }
.primary { color: white; background: var(--blue); box-shadow: 0 7px 18px rgba(45,127,249,.24); }
.secondary { color: var(--navy); background: var(--ice); border: 1px solid #cbdced; }
.ghost { color: inherit; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); }
.big { min-height: 58px; font-size: 17px; }
.danger { width: 100%; margin-top: 20px; color: white; background: var(--red); }
.hidden { display: none !important; }
.safety { padding: 16px 18px; box-shadow: none; }
.safety summary { font-weight: 800; cursor: pointer; }
.safety p { margin-bottom: 0; color: var(--muted); }
.resume-card { padding: 16px 18px; margin: 16px 0; border-left: 5px solid var(--amber); }
.resume-card strong, .resume-card small { display: block; margin-top: 6px; }
.resume-card .actions { grid-template-columns: 1fr 1fr; margin: 14px 0 0; }
.back { margin: 0 0 12px -6px; padding: 8px; color: var(--navy-2); background: transparent; }
.form-card { display: grid; gap: 20px; padding: 20px; margin-bottom: 18px; }
.map-review-card { padding: 16px; margin-bottom: 18px; }
.map-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.map-heading h3 { margin: 3px 0 8px; }
.map { width: 100%; height: 310px; border: 1px solid var(--line); border-radius: 14px; overflow: hidden; background: #e8eef4; }
.route-status { margin: 10px 2px; color: var(--muted); font-size: 14px; }
.route-status.ready { color: var(--green); font-weight: 750; }
.route-status.error { color: var(--red); font-weight: 750; }
.map-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 10px 0; }
.leaflet-control-attribution { font-size: 9px; }
label { display: grid; gap: 8px; font-weight: 750; }
input, select { width: 100%; min-height: 50px; padding: 12px; border: 1px solid #bdcad8; border-radius: 12px; color: var(--ink); background: white; }
.toggle-row { grid-template-columns: auto 1fr; align-items: center; }
.toggle-row input { width: 24px; min-height: 24px; accent-color: var(--blue); }
.system-check-status { padding: 11px 13px; border-radius: 11px; color: #8b570e; background: #fff4df; font-size: 13px; font-weight: 800; }
.system-check-status.ready { color: var(--green); background: #eaf8f2; }
.system-check-status.error { color: var(--red); background: #fff0f0; }
.exam-screen { padding-bottom: 10px; }
.driver-card { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 15px 17px; margin-bottom: 14px; border-left: 5px solid var(--amber); }
.driver-card strong, .driver-card small { display: block; }
.driver-card strong { margin: 3px 0; color: var(--navy); font-size: 19px; }
.driver-card small { color: var(--muted); }
.driver-card button { flex: 0 0 auto; }
.exam-header { display: flex; align-items: start; justify-content: space-between; margin-bottom: 14px; }
.phase-pill { display: inline-block; padding: 6px 10px; border-radius: 20px; color: white; background: var(--green); font-weight: 900; font-size: 12px; letter-spacing: .08em; }
.timer { margin-top: 5px; color: var(--navy); font-size: 32px; font-variant-numeric: tabular-nums; font-weight: 900; }
.exam-header .ghost { color: var(--navy); border-color: var(--line); background: white; }
.phase-announcement { margin: 0 0 14px; padding: 16px 18px; border-radius: 16px; color: white; background: var(--blue); box-shadow: 0 8px 22px rgba(45,127,249,.28); animation: pulse-in .35s ease-out; }
.phase-announcement span, .phase-announcement strong { display: block; }
.phase-announcement span { margin-bottom: 4px; font-size: 11px; font-weight: 900; letter-spacing: .11em; opacity: .82; }
.phase-announcement strong { font-size: 18px; }
.stop-announcement { display: grid; gap: 10px; margin: 0 0 14px; padding: 18px; border-radius: 16px; color: white; background: var(--navy); box-shadow: 0 8px 24px rgba(11,35,65,.28); }
.stop-announcement span { font-size: 11px; font-weight: 900; letter-spacing: .11em; color: #9fc1e3; }
.stop-announcement strong { font-size: 19px; }
.stop-announcement button { margin-top: 3px; }
@keyframes pulse-in { 0% { transform: scale(.96); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
.voice-card { padding: 20px; border-left: 5px solid var(--blue); }
.voice-card p { min-height: 55px; margin: 9px 0 15px; font-size: 20px; font-weight: 750; }
.auto-guidance-status { padding: 10px 12px; border-radius: 10px; color: var(--green); background: #eaf8f2; font-size: 13px; font-weight: 800; }
.auto-guidance-status.warning { color: #8b570e; background: #fff4df; }
.manual-controls { margin-top: 12px; color: var(--muted); font-size: 13px; }
.manual-controls summary { padding: 6px 0; cursor: pointer; }
.voice-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.location-line { display: flex; align-items: center; gap: 8px; margin: 13px 4px 20px; color: var(--muted); font-size: 13px; }
.live-map-card { margin: 0 0 18px; padding: 13px; box-shadow: none; }
.live-map-card summary { padding: 4px; color: var(--navy); font-weight: 800; cursor: pointer; }
.live-map { height: 240px; margin-top: 12px; }
.route-marker { display: grid; width: 28px; height: 28px; place-items: center; border: 3px solid white; border-radius: 50%; color: white; background: var(--navy); box-shadow: 0 2px 8px rgba(0,0,0,.3); font-size: 12px; font-weight: 900; }
.gps-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 4px rgba(215,134,26,.15); }
.gps-dot.ready { background: var(--green); box-shadow: 0 0 0 4px rgba(24,131,90,.15); }
.fault-panel { padding: 2px 0; }
.fault-title { display: flex; align-items: end; justify-content: space-between; gap: 10px; }
.fault-title h2 { margin-bottom: 3px; font-size: 25px; }
.fault-count { white-space: nowrap; color: var(--red); }
.fault-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; margin: 14px 0 10px; }
.fault-button { display: grid; align-content: center; min-height: 76px; padding: 10px; color: var(--navy); background: white; border: 2px solid var(--line); box-shadow: 0 3px 10px rgba(13,42,77,.06); }
.fault-button:active { transform: scale(.98); border-color: var(--red); background: #fff1f1; }
.fault-button span { color: var(--muted); font-size: 11px; margin-top: 3px; }
.undo { width: 100%; color: var(--muted); background: transparent; border: 1px dashed #b7c2cf; }
.undo:disabled { opacity: .45; }
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 14px; }
.summary-item { padding: 16px 10px; text-align: center; }
.summary-item strong { display: block; color: var(--navy); font-size: 22px; }
.summary-item span { color: var(--muted); font-size: 12px; }
#reportScreen > .card { padding: 18px; }
.fault-record { display: grid; grid-template-columns: 54px 1fr; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.fault-record:last-child { border: 0; }
.fault-time { color: var(--red); font-weight: 900; }
.empty { padding: 26px 16px; color: var(--muted); text-align: center; }
.history-item { padding: 18px; margin-bottom: 10px; }
.history-item header { display: flex; justify-content: space-between; gap: 10px; }
.history-item p { margin: 6px 0 0; color: var(--muted); }
.student-report { margin: 10px 0 18px; padding: 12px 14px; border-radius: 12px; background: var(--ice); }
.student-report strong { display: block; color: var(--navy); }
.toast { position: fixed; z-index: 50; left: 50%; bottom: calc(22px + env(safe-area-inset-bottom)); width: max-content; max-width: calc(100% - 32px); padding: 12px 18px; transform: translate(-50%, 120px); color: white; background: #172232; border-radius: 30px; opacity: 0; transition: .25s; box-shadow: var(--shadow); }
.toast.show { transform: translate(-50%, 0); opacity: 1; }
@media (max-width: 520px) {
  .status-grid { grid-template-columns: 1fr; }
  .hero { align-items: flex-start; }
  .hero-mark { flex-basis: 56px; height: 56px; border-radius: 16px; font-size: 19px; }
  .hero p { margin-bottom: 0; }
  .fault-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .summary-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .map { height: 270px; }
  .live-map { height: 220px; }
}