:root{
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;
  color:#17202a;background:#eef2f4;
  --surface:#fff;--line:#d8e0e5;--text:#17202a;--muted:#5f6b73;
  --accent:#174a66;--accent2:#0f6b5b;--warn:#9a2f18;--shadow:0 10px 34px rgba(0,0,0,.18);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:#eef2f4}
button,input,select,textarea{font:inherit}
button{min-height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--text);padding:.65rem .9rem;cursor:pointer}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible{outline:4px solid #111;outline-offset:2px}
button:hover{filter:brightness(.98)}
.hidden{display:none!important}
.app-shell{width:100%;max-width:760px;margin:0 auto;min-height:100dvh;background:#fff;position:relative;overflow:hidden}
.topbar{height:78px;display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.97);z-index:20;position:relative}
.brand{font-size:1.25rem;font-weight:800}
.status-row{display:flex;gap:6px;margin-top:4px;flex-wrap:wrap}
.status-pill{font-size:.78rem;border:1px solid var(--line);border-radius:999px;padding:3px 8px;background:#f6f8f9}
.icon-btn{font-size:1.35rem;width:48px;padding:0}
.warning-banner{position:absolute;z-index:18;top:78px;left:0;right:0;background:#fff4ef;border-bottom:2px solid var(--warn);padding:10px 14px;box-shadow:0 5px 14px rgba(0,0,0,.12)}
.warning-banner p{margin:.3rem 0;font-size:.9rem}
.warning-actions{display:flex;gap:8px;flex-wrap:wrap}
.map-stage{position:relative;height:calc(100dvh - 154px);min-height:440px;overflow:hidden;background:#dfe8e7}
.mock-map{width:100%;height:100%;overflow:hidden;touch-action:none;position:relative;background:#eef2f4}
.map-canvas{width:100%;height:100%;position:absolute;inset:0;pointer-events:none;background:transparent;transform:none!important;transition:none}
.map-controls{position:absolute;right:12px;bottom:20px;display:grid;grid-template-columns:48px 48px;gap:8px;z-index:10}
.map-controls button{box-shadow:0 3px 10px rgba(0,0,0,.16);font-weight:700}
.wide-control{grid-column:1/3}
.emergency-control{border:2px solid var(--warn)}
.bottom-nav{height:76px;position:absolute;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-top:1px solid var(--line);z-index:25}
.bottom-nav button{border:0;border-radius:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-weight:700}
.bottom-nav button span:first-child{font-size:1.2rem}
.sheet{position:absolute;left:0;right:0;bottom:76px;z-index:22;max-height:70dvh;overflow:auto;background:#fff;border-radius:22px 22px 0 0;padding:10px 16px 18px;box-shadow:var(--shadow);transform:translateY(calc(100% + 80px));transition:transform .22s ease;pointer-events:none}
.sheet.open{transform:translateY(0);pointer-events:auto}
.sheet-handle{width:52px;height:5px;border-radius:999px;background:#cfd6da;margin:0 auto 8px}
.sheet-head{display:flex;justify-content:space-between;align-items:center;gap:12px}
.sheet-head h2{font-size:1.2rem;margin:.35rem 0}
.close-sheet{width:44px;padding:0}
.card,.flow-card,.notice,.legend{border:1px solid var(--line);border-radius:14px;padding:14px;margin-top:10px;background:#fff}
.card h3{margin:.1rem 0}
.distance{font-size:1.15rem;font-weight:700}
.facts{margin:12px 0}.facts div{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid #edf0f2}.facts dt,.facts dd{margin:0}
.button-row{display:flex;gap:8px;flex-wrap:wrap}
.toggle-row{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:13px 4px;border-bottom:1px solid var(--line)}
.toggle-row input{width:28px;height:28px}
.toggle-row.compact{padding:6px 0}
.legend ol{list-style:none;padding:0;margin:8px 0 0}.legend li{display:flex;align-items:center;gap:8px;margin:6px 0}.legend-key{width:26px;height:18px;border:2px solid #111;display:inline-block}.l1{background:#d9f0ff}.l2{background:#8bd3ff}.l3{background:#4c9be8}.l4{background:#7753c7}.l5{background:#4b2a5f}
.status-family{display:grid;gap:8px;margin-top:12px}.status-family button{display:flex;justify-content:space-between}.status-family span{font-size:.84rem;color:var(--muted)}
.training-badge{background:#fff4df;border:2px solid #7a5b00;border-radius:12px;padding:10px;font-weight:800;margin-top:8px}
.menu-panel{position:absolute;z-index:32;top:0;right:0;bottom:0;width:min(88%,360px);background:#fff;padding:14px;box-shadow:var(--shadow);transform:translateX(105%);transition:transform .2s ease;overflow:auto}
.menu-panel.open{transform:translateX(0)}
.menu-panel>button{width:100%;margin:4px 0;text-align:left}
.qa-tools{margin-top:10px}.qa-grid{display:grid;gap:10px;margin-top:10px}.qa-grid label{display:grid;gap:4px}
.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.44);z-index:38}
.modal{position:absolute;z-index:40;left:50%;top:50%;transform:translate(-50%,-50%);width:min(92%,520px);max-height:88dvh;overflow:auto;background:#fff;border-radius:18px;padding:18px;box-shadow:var(--shadow)}
.modal h2{margin-top:0}.modal>button{width:100%;margin-top:10px}
.big-action{width:100%;min-height:64px;text-align:left;font-size:1.08rem;font-weight:800;margin:7px 0}
.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin:10px 0}
textarea{width:100%;margin-top:6px;padding:10px;border:1px solid var(--line);border-radius:10px}
.muted{color:var(--muted);font-size:.9rem}
.weather-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.weather-grid div{border:1px solid var(--line);border-radius:12px;padding:12px;display:grid;gap:5px}
.check-list{padding-left:1.2rem}
.onboarding{position:absolute;inset:0;z-index:50;background:rgba(244,247,248,.98);display:grid;place-items:center;padding:18px}
.onboarding-card{width:min(100%,520px);background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px;box-shadow:var(--shadow)}
.step-indicator{color:var(--muted);font-weight:700}.onboarding-actions{display:flex;gap:8px;justify-content:space-between;margin-top:16px;flex-wrap:wrap}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media (max-width:360px){
  .brand{font-size:1.08rem}.status-pill{font-size:.7rem}.topbar{padding:8px 10px}
  .sheet{padding-left:12px;padding-right:12px}.choice-grid{grid-template-columns:1fr}
}
@media (min-width:761px){
  body{padding:20px}.app-shell{min-height:calc(100dvh - 40px);border-radius:22px;box-shadow:var(--shadow)}
  .map-stage{height:calc(100dvh - 194px)}
}
/* V01-NAT-UI-03-r3 inactive sheet visibility fix */
.sheet{
  visibility:hidden;
  opacity:0;
  pointer-events:none;
}
.sheet.open{
  visibility:visible;
  opacity:1;
  pointer-events:auto;
}
/* V01-NAT-UI-03-r4 flood depth5 label contrast fix */
.z5 span{
  color:#111;
}
/* V01-NAT-UI-03-r5 hazard sheet half-height */
#hazardSheet{
  max-height:55dvh;
  overflow-y:auto;
  overscroll-behavior:contain;
  scrollbar-gutter:stable;
}
/* V01-NAT-UI-03-r6 hazard guaranteed map visibility */
#hazardSheet{
  height:min(46dvh, 520px);
  max-height:min(46dvh, 520px);
  overflow-y:auto;
  overscroll-behavior:contain;
  scrollbar-gutter:stable;
}
/* V01-NAT-UI-03-r7 persistent header */
.topbar{
  position:sticky;
  top:0;
  left:0;
  right:0;
  z-index:35;
  flex:0 0 78px;
}

@media (min-width:761px){
  html,body{
    height:100%;
    overflow:hidden;
  }
  .app-shell{
    height:calc(100dvh - 40px);
    min-height:0;
    overflow:hidden;
  }
}
/* V01-NAT-UI-03-r8 menu below sticky header */
.menu-panel{
  top:78px;
}
/* V01-NAT-UI-03-r10 modal interaction containment */
body.modal-open .topbar,
body.modal-open .bottom-nav,
body.modal-open .map-controls,
body.modal-open .sheet,
body.modal-open .menu-panel{
  pointer-events:none;
}
body.modal-open .modal{
  pointer-events:auto;
}
/* V01-NAT-UI-03-r11 deterministic menu pointer state */
.menu-panel{
  pointer-events:none;
}
.menu-panel.open{
  pointer-events:auto;
}
/* V01-NAT-UI-03-r12 low-height map controls */
@media (max-height:520px){
  .map-controls{
    left:12px;
    right:12px;
    bottom:10px;
    grid-template-columns:44px 44px minmax(110px,1fr) minmax(88px,.8fr);
    align-items:stretch;
  }

  .map-controls .wide-control{
    grid-column:auto;
  }

  .map-controls button{
    min-height:44px;
    padding:.45rem .55rem;
  }
}