:root {
  --ink: #1d2725;
  --muted: #68736f;
  --paper: #fbfaf4;
  --panel: rgba(250, 249, 242, .97);
  --line: #d8ddd5;
  --green: #155b52;
  --green-dark: #0e443f;
  --mint: #168578;
  --rust: #b84a30;
  --purple: #75336f;
  --shadow: 0 18px 45px rgba(24, 42, 38, .18);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body { margin: 0; overflow: hidden; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--ink); background: #dde6e2; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

.app-shell { width: 100%; height: 100%; position: relative; }
.map-stage { position: absolute; inset: 0; background: #dfe8e4; }
#map { width: 100%; height: 100%; }

.control-drawer {
  position: absolute;
  z-index: 900;
  top: 20px;
  bottom: 20px;
  left: 20px;
  width: min(430px, calc(100vw - 40px));
  overflow-y: auto;
  background: var(--panel);
  border: 1px solid rgba(87, 103, 97, .25);
  border-radius: 8px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition: transform .25s ease;
}
.control-drawer.closed { transform: translateX(calc(-100% - 30px)); }

.drawer-header { display: grid; grid-template-columns: 5px minmax(0, 1fr); gap: 16px; padding: 28px 28px 24px; border-bottom: 1px solid var(--line); }
.identity-rule { background: linear-gradient(var(--green), var(--rust)); border-radius: 999px; }
.identity-copy { min-width: 0; }
.product-kicker, .mini-label, .control-label { margin: 0 0 8px; text-transform: uppercase; letter-spacing: .14em; font-size: .69rem; font-weight: 800; color: var(--muted); }
h1, h2, p { margin-top: 0; }
h1 { display: flex; flex-wrap: wrap; gap: .22em; align-items: baseline; margin: 0 0 5px; font-family: "Segoe UI", Inter, system-ui, sans-serif; font-size: clamp(1.85rem, 4vw, 2.55rem); line-height: 1.02; letter-spacing: -.045em; font-weight: 800; }
.product-wordmark { display: inline-block; white-space: nowrap; unicode-bidi: isolate; font-kerning: normal; font-variant-ligatures: normal; }
.product-subtitle { margin-bottom: 9px; color: var(--muted); font-size: 1rem; }
.method-link { padding: 0; border: 0; background: none; color: var(--green); font-weight: 800; cursor: pointer; }

.control-section { padding: 24px 28px; border-bottom: 1px solid var(--line); }
.search-field { display: flex; align-items: center; gap: 10px; padding: 0 14px; background: white; border: 1px solid #cbd3cd; border-radius: 7px; }
.search-field span { color: var(--green); font-size: 1.45rem; }
.search-field input { width: 100%; min-height: 52px; border: 0; outline: 0; background: transparent; color: var(--ink); }
.field-help { margin: 8px 0 14px; color: var(--muted); font-size: .75rem; line-height: 1.45; }
.load-road, .frsc-button { width: 100%; min-height: 54px; display: inline-flex; align-items: center; justify-content: center; gap: 10px; border: 0; border-radius: 7px; background: var(--green); color: white; font-weight: 800; text-decoration: none; cursor: pointer; }
.load-road:hover, .frsc-button:hover { background: var(--green-dark); }

.live-summary { margin: 18px 28px; padding: 17px; border: 1px solid #b9d3ca; border-radius: 10px; background: linear-gradient(145deg, #eef7f2, #fffdf7); box-shadow: 0 10px 24px rgba(21,91,82,.08); }
.summary-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 13px; }
.summary-heading h2 { margin: 0; font-size: 1rem; }
.live-indicator { display: inline-flex; align-items: center; gap: 6px; color: var(--green-dark); font-size: .69rem; font-weight: 800; }
.live-indicator i { width: 8px; height: 8px; border-radius: 50%; background: #19a67e; box-shadow: 0 0 0 5px rgba(25,166,126,.12); animation: livePulse 2s ease-in-out infinite; }
.summary-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 9px; }
.summary-grid article { min-height: 78px; padding: 12px; border: 1px solid rgba(21,91,82,.12); border-radius: 8px; background: rgba(255,255,255,.76); }
.summary-grid strong { display: block; font-size: 1.75rem; line-height: 1; color: var(--green-dark); }
.summary-grid span { display: block; margin-top: 7px; color: var(--muted); font-size: .69rem; }

.control-card, .segment-card { margin: 18px 28px; background: rgba(255,255,255,.72); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.card-heading { display: flex; align-items: center; justify-content: space-between; padding: 15px 18px; border-bottom: 1px solid var(--line); }
.card-heading h2 { margin: 0; font-size: .78rem; text-transform: uppercase; letter-spacing: .13em; }
.road-badge { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50% 50% 45% 45%; background: #183f7d; color: white; border: 3px solid white; box-shadow: 0 0 0 1px #c94338; font-size: .7rem; font-weight: 900; }
.auto-pill, .segment-total { padding: 7px 11px; border-radius: 7px; background: var(--green); color: white; font-size: .7rem; font-weight: 800; }
.filter-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 22px; padding: 18px; }
.period-choice { display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 10px; min-height: 49px; padding: 7px 8px; border-radius: 8px; cursor: pointer; }
.period-choice.active { background: #e5efea; }
.period-choice input { position: absolute; opacity: 0; }
.period-choice span { width: 18px; height: 18px; border-radius: 50%; background: #668078; box-shadow: 0 0 0 6px transparent; }
.period-choice.active span { background: var(--mint); box-shadow: 0 0 0 6px rgba(22,133,120,.12); }
.period-choice strong { font-size: .82rem; }
.period-choice em { font-style: normal; color: var(--muted); font-size: .78rem; }

.clock-filter { width: 142px; height: 142px; position: relative; display: grid; place-items: center; margin: 12px auto 18px; border: 5px solid var(--mint); border-radius: 50%; }
.clock-filter::before, .clock-filter::after { content: ""; position: absolute; background: var(--mint); }
.clock-filter::before { width: 2px; height: 12px; top: -9px; left: 50%; }
.clock-filter::after { width: 12px; height: 2px; right: -9px; top: 50%; }
.clock-button { position: absolute; border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: .72rem; }
.clock-button[data-time="all"] { inset: 36px; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; }
.clock-button[data-time="day"] { top: -4px; left: 50%; transform: translate(-50%, -100%); }
.clock-button[data-time="night"] { bottom: -4px; left: 50%; transform: translate(-50%, 100%); }
.clock-button.active { color: var(--green-dark); font-weight: 900; }
.clock-button strong { font-size: 1rem; }
.clock-button small { display: block; font-size: .65rem; }

.bin-readout { display: flex; justify-content: space-between; align-items: baseline; padding: 18px 18px 5px; }
.bin-readout strong { font-size: 1.2rem; }
.bin-readout span { color: var(--muted); font-size: .75rem; }
input[type="range"] { width: calc(100% - 36px); margin: 15px 18px 4px; accent-color: var(--green); }
.range-labels { display: flex; justify-content: space-between; padding: 0 18px 18px; color: var(--muted); font-size: .67rem; }

.segment-list { display: grid; gap: 8px; padding: 12px; max-height: 225px; overflow-y: auto; }
.segment-row { display: grid; grid-template-columns: 44px 1fr auto; gap: 10px; align-items: center; padding: 10px; border-radius: 8px; background: #f2f6f3; border: 1px solid #e0e8e3; cursor: pointer; }
.segment-row:hover { border-color: #91b6aa; background: #eaf3ee; }
.segment-km { color: var(--muted); font-size: .68rem; font-weight: 800; }
.segment-bar { height: 8px; overflow: hidden; border-radius: 999px; background: #dce7e1; }
.segment-bar i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--green), var(--purple)); }
.segment-row strong { font-size: .82rem; }
.segment-empty { padding: 22px 12px; text-align: center; color: var(--muted); font-size: .76rem; }

.safety-card { margin: 18px 28px; padding: 18px; border-radius: 8px; background: #fff4ec; border: 1px solid #ebc7b3; }
.safety-card strong { display: block; margin-bottom: 7px; }
.safety-card p { color: #6d5549; font-size: .78rem; line-height: 1.48; }
.frsc-button { min-height: 44px; background: var(--rust); }
.drawer-footer { padding: 4px 28px 26px; color: var(--muted); font-size: .7rem; line-height: 1.45; }
.drawer-footer p { margin-bottom: 7px; }

.map-toolbar { position: absolute; z-index: 700; top: 20px; left: min(470px, calc(100vw - 130px)); display: flex; gap: 12px; transition: left .25s ease; }
.control-drawer.closed + .map-stage .map-toolbar { left: 20px; }
.map-toolbar button { min-width: 56px; min-height: 52px; border: 1px solid rgba(80,96,90,.25); border-radius: 8px; background: rgba(250,249,242,.96); color: var(--green-dark); box-shadow: 0 8px 24px rgba(20,38,34,.12); font-weight: 800; cursor: pointer; }
.mode-button.active { background: var(--rust); color: white; }
.route-shield { position: absolute; z-index: 700; top: 20px; right: 24px; width: 112px; height: 132px; display: grid; place-items: center; border: 1px solid rgba(80,96,90,.18); border-radius: 8px; background: rgba(250,249,242,.94); box-shadow: 0 10px 26px rgba(20,38,34,.12); }
.route-shield span { width: 68px; height: 82px; display: grid; place-items: center; clip-path: polygon(10% 0,90% 0,100% 22%,88% 80%,50% 100%,12% 80%,0 22%); background: linear-gradient(#c84036 0 27%, #183f7d 27%); color: white; border: 4px solid white; font-weight: 900; font-size: 1.4rem; }
.figure-legend, .simulation-banner { position: absolute; z-index: 700; bottom: 20px; background: rgba(250,249,242,.95); border: 1px solid rgba(80,96,90,.2); box-shadow: 0 8px 24px rgba(20,38,34,.12); }
.figure-legend { left: 50%; transform: translateX(-50%); display: inline-flex; align-items: center; gap: 8px; padding: 10px 15px; border-radius: 8px; font-size: .76rem; font-weight: 750; }
.simulation-banner { right: 20px; padding: 9px 12px; border-radius: 6px; color: #7d2d20; font-size: .64rem; font-weight: 900; letter-spacing: .08em; }
.legend-human { width: 13px; height: 22px; position: relative; display: inline-block; }
.legend-human::before { content: ""; position: absolute; top: 0; left: 4px; width: 6px; height: 6px; border-radius: 50%; background: #171a19; }
.legend-human::after { content: ""; position: absolute; top: 7px; left: 2px; width: 10px; height: 15px; background: #171a19; clip-path: polygon(30% 0,70% 0,80% 38%,100% 100%,68% 100%,53% 54%,47% 54%,32% 100%,0 100%,20% 38%); }
.map-empty-state { position: absolute; z-index: 710; top: 50%; left: calc(50% + 150px); transform: translate(-50%, -50%); padding: 18px 22px; border-radius: 10px; background: rgba(250,249,242,.96); border: 1px solid var(--line); box-shadow: var(--shadow); color: var(--muted); font-weight: 800; }

.fatality-bin { pointer-events: auto; }
.fatality-stack { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: center; gap: 3px; min-width: 62px; max-width: 110px; padding: 7px 8px 8px; transform: translate(-50%, -100%); border-radius: 12px; background: rgba(255,255,255,.82); border: 1px solid rgba(29,39,37,.16); box-shadow: 0 10px 26px rgba(15,42,35,.22); backdrop-filter: blur(4px); animation: markerRise .45s ease-out both; }
.human-figure { width: 20px; height: 33px; position: relative; display: inline-block; filter: drop-shadow(0 2px 1px rgba(255,255,255,.85)); animation: figurePulse 3s ease-in-out infinite; }
.human-figure::before { content: ""; position: absolute; top: 0; left: 6px; width: 8px; height: 8px; border-radius: 50%; background: #111514; }
.human-figure::after { content: ""; position: absolute; top: 9px; left: 4px; width: 13px; height: 22px; background: #111514; clip-path: polygon(30% 0,70% 0,80% 38%,100% 100%,68% 100%,53% 54%,47% 54%,32% 100%,0 100%,20% 38%); }
.bin-label { width: 100%; margin-bottom: 2px; text-align: center; color: #171a19; font-size: .72rem; font-weight: 900; }
.bin-stem { position: absolute; left: 50%; bottom: -18px; width: 2px; height: 18px; background: rgba(17,21,20,.55); }
.actual-point { width: 10px; height: 10px; border: 2px solid white; border-radius: 50%; background: var(--purple); box-shadow: 0 0 0 4px rgba(117,51,111,.18); }

.leaflet-control-zoom a { color: var(--green-dark) !important; }
.leaflet-popup-content-wrapper { border-radius: 8px; }
.app-status { position: fixed; z-index: 1200; top: 14px; left: 50%; transform: translateX(-50%); max-width: min(620px, calc(100% - 32px)); }

dialog { width: min(580px, calc(100% - 28px)); border: 0; border-radius: 12px; padding: 0; box-shadow: 0 28px 80px rgba(0,0,0,.35); }
dialog::backdrop { background: rgba(8,26,22,.55); }
dialog form { padding: 25px; }
.dialog-heading { display: flex; justify-content: space-between; align-items: center; }
.dialog-heading h2 { margin: 0; }
.dialog-heading button { border: 0; background: transparent; font-size: 1.7rem; cursor: pointer; }
dialog p { color: var(--muted); line-height: 1.6; }

@keyframes markerRise { from { opacity: 0; transform: translate(-50%, calc(-100% + 16px)) scale(.88); } to { opacity: 1; transform: translate(-50%, -100%) scale(1); } }
@keyframes figurePulse { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-2px); } }
@keyframes livePulse { 0%, 100% { opacity: .65; } 50% { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}

@media (max-width: 760px) {
  .control-drawer { top: 10px; bottom: 10px; left: 10px; width: min(390px, calc(100vw - 20px)); }
  .filter-grid { grid-template-columns: 1fr; }
  .clock-filter { margin-top: 30px; }
  .map-toolbar { top: 12px; left: auto; right: 12px; }
  .route-shield { display: none; }
  .figure-legend { left: 12px; transform: none; bottom: 12px; }
  .simulation-banner { right: 12px; bottom: 56px; }
  .map-empty-state { left: 50%; width: calc(100% - 40px); text-align: center; }
}

/* Road-density explorer completion layer */
.app-shell { min-height: 100vh; min-height: 100dvh; display: grid; grid-template-columns: clamp(330px, 28vw, 440px) minmax(0, 1fr); padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }
.map-stage { position: relative; inset: auto; min-width: 0; height: 100vh; height: 100dvh; }
.control-drawer { position: relative; inset: auto; width: auto; height: 100vh; height: 100dvh; border-radius: 0; border-width: 0 1px 0 0; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
.control-drawer.closed { transform: translateX(calc(-100% + 58px)); }
.control-drawer.closed + .map-stage .map-toolbar { left: 20px; }
#map { min-height: 100%; background: #dfe8e4; touch-action: pan-x pan-y; }
select { width: 100%; min-height: 48px; padding: 0 12px; border: 1px solid #cbd3cd; border-radius: 7px; background: #fff; color: var(--ink); }
.source-list { margin: 0; padding: 16px 18px; display: grid; gap: 11px; }
.source-list div { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 12px; }
.source-list dt { color: var(--muted); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.source-list dd { margin: 0; font-size: .86rem; overflow-wrap: anywhere; }
.simulation-chip { display: inline-flex; width: fit-content; align-items: center; gap: 6px; margin: 0; padding: 7px 9px; border: 1px solid #b84a30; border-radius: 999px; background: #fff4ec; color: #7d2d20; font-size: .68rem; font-weight: 950; letter-spacing: .06em; }
.simulation-chip.small { padding: 4px 7px; font-size: .6rem; }
.summary-grid.three { grid-template-columns: repeat(3, 1fr); }
.summary-grid.three article { min-height: 92px; }
.narrative { margin: 13px 0 0; color: var(--green-dark); font-size: .9rem; line-height: 1.5; font-weight: 650; }
.legend-card { margin: 18px 28px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: rgba(255,255,255,.72); }
.legend-card h2 { margin-bottom: 12px; font-size: .78rem; text-transform: uppercase; letter-spacing: .13em; }
.legend-card ul { display: grid; gap: 10px; margin: 0; padding-left: 18px; color: var(--muted); font-size: .78rem; line-height: 1.45; }
.line-sample, .axis-sample { display: inline-block; width: 34px; height: 0; margin-right: 6px; vertical-align: middle; border-top: 5px solid var(--green); }
.axis-sample { border-top: 2px dashed var(--purple); }
.map-toolbar { left: 20px; }
.map-toolbar button { padding: 0 14px; width: auto; }
.route-shield span { clip-path: none; border-radius: 13px; background: linear-gradient(135deg, var(--green), var(--purple)); }
.stack-button { border: 0; padding: 0; background: transparent; cursor: pointer; }
.stack-button:focus-visible, .segment-row:focus-visible, button:focus-visible, select:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid #f0b84a; outline-offset: 3px; }
.fatality-circle { width: var(--size); height: var(--size); display: grid; place-items: center; transform: translate(-50%, -50%); border: 3px solid #fff; border-radius: 50%; background: rgba(184,74,48,.78); color: #fff; font-weight: 900; box-shadow: 0 12px 28px rgba(15,42,35,.24); }
.fatality-density { width: 58px; height: 58px; display: grid; place-items: center; transform: translate(-50%, -50%); border-radius: 14px; border: 2px solid #fff; background: color-mix(in srgb, #b84a30 calc(var(--intensity) * 100%), #f4d68a); color: #1d2725; font-weight: 950; box-shadow: 0 12px 28px rgba(15,42,35,.24); }
.detail-panel { position: absolute; z-index: 760; right: 20px; top: 170px; width: min(360px, calc(100% - 40px)); max-height: calc(100% - 240px); overflow: auto; padding: 18px; border-radius: 10px; border: 1px solid rgba(80,96,90,.25); background: rgba(250,249,242,.97); box-shadow: var(--shadow); color: var(--ink); }
.detail-panel h2 { margin-right: 34px; font-size: 1.05rem; }
.detail-panel p { line-height: 1.45; font-size: .84rem; }
.detail-close { position: absolute; top: 8px; right: 8px; width: 34px; height: 34px; border: 0; border-radius: 50%; background: #e9eee9; cursor: pointer; font-size: 1.2rem; }
.method-link { padding: 7px 10px; border: 1px solid #cbd3cd; border-radius: 999px; background: #fff; }
@media (max-width: 900px) { .summary-grid.three { grid-template-columns: 1fr; } .source-list div { grid-template-columns: 1fr; gap: 3px; } }
@media (max-width: 760px) { body { overflow: hidden; } .app-shell { display: block; } .map-stage { height: 100vh; height: 100dvh; } .control-drawer { position: fixed; z-index: 900; left: 0; right: 0; top: auto; bottom: 0; width: 100%; height: min(76vh, 680px); border-radius: 18px 18px 0 0; border-width: 1px 0 0; transform: translateY(calc(100% - 96px)); } .control-drawer.closed { transform: translateY(calc(100% - 62px)); } .control-drawer:not(.closed) { transform: translateY(0); } .drawer-header { padding-top: 18px; } .map-toolbar { top: 12px; left: 12px; right: auto; } .figure-legend { max-width: calc(100% - 24px); } .detail-panel { top: auto; bottom: 92px; right: 12px; left: 12px; width: auto; max-height: 44vh; } }