:root {
  --arrow-ink: #0f172a;   /* flèches : une seule teinte, quelle que soit la force */
  --bg: #eef1f4;
  --surface: rgba(255, 255, 255, 0.94);
  --ink: #15202b;
  --ink-soft: #55616d;
  --line: #d5dbe1;
  --accent: #0f766e;
  --accent-ink: #ffffff;
  --warn-bg: #fff4d6;
  --warn-ink: #6b4a00;
  --warn-line: #f0c75e;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.16);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0e1319;
    --surface: rgba(24, 31, 40, 0.94);
    --ink: #e6ebf0;
    --ink-soft: #9aa6b2;
    --line: #2f3a46;
    --accent: #2dd4bf;
    --accent-ink: #052b27;
    --warn-bg: #3a2f10;
    --warn-ink: #ffe29a;
    --warn-line: #7a6320;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  }
}

:root[data-theme="dark"] {
  --bg: #0e1319;
  --surface: rgba(24, 31, 40, 0.94);
  --ink: #e6ebf0;
  --ink-soft: #9aa6b2;
  --line: #2f3a46;
  --accent: #2dd4bf;
  --accent-ink: #052b27;
  --warn-bg: #3a2f10;
  --warn-ink: #ffe29a;
  --warn-line: #7a6320;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

[hidden] { display: none !important; }

.app {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.banner {
  flex: 0 0 auto;
  padding: 10px 16px;
  background: var(--warn-bg);
  color: var(--warn-ink);
  border-bottom: 1px solid var(--warn-line);
  font-size: 14px;
  line-height: 1.4;
  text-align: center;
}

.map-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 0;
}

#map {
  position: absolute;
  inset: 0;
}

/* ---------- Panneau de contrôle ---------- */

.panel {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  width: 292px;
  padding: 16px 18px 14px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.panel h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.panel .sub {
  margin: 3px 0 14px;
  font-size: 13px;
  color: var(--ink-soft);
}

/* En-tête du panneau : titre, et bouton « Réglages » (affiché seulement sur petit écran) */

.panel-head {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.panel-titles { flex: 1 1 auto; min-width: 0; }

.drawer-toggle { display: none; }

/* Ombre en bas tant que le panneau a du contenu masqué (défilement) */
.panel.has-more {
  box-shadow: var(--shadow), inset 0 -16px 14px -14px rgba(0, 0, 0, 0.4);
}

.field-hint {
  margin: 4px 0 12px;
  font-size: 12px;
  line-height: 1.4;
  color: var(--ink-soft);
}

.sim-hint {
  margin: 0 0 12px;
  padding: 6px 8px;
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn-ink);
}

.help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  margin-left: 3px;
  border: 1px solid var(--ink-soft);
  border-radius: 50%;
  font-size: 10px;
  line-height: 1;
  color: var(--ink-soft);
  cursor: help;
  vertical-align: 1px;
}

/* Superposition de chargement / erreur, au centre de la carte */

.map-status {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100% - 32px);
  padding: 9px 16px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 999px;
  box-shadow: var(--shadow);
  font-size: 14px;
  white-space: nowrap;
  pointer-events: none;
}

.map-status.is-error {
  padding: 12px 16px;
  border-radius: var(--radius);
  border-color: var(--danger);
  background: var(--danger-bg);
  color: var(--danger-ink);
  white-space: normal;
  line-height: 1.45;
  pointer-events: auto;
  width: min(380px, calc(100% - 32px));
}

.spinner {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border: 2px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .spinner { animation-duration: 2.4s; }
}

.field {
  margin: 0 0 12px;
  padding: 0;
  border: 0;
}

.field legend {
  padding: 0;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.seg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 3px;
  gap: 3px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}

.seg button {
  appearance: none;
  border: 0;
  padding: 8px 6px;
  border-radius: 7px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.seg button:hover { background: color-mix(in srgb, var(--accent) 12%, transparent); }

.seg button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.seg button:focus-visible,
.check input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  cursor: pointer;
  user-select: none;
}

.check input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--accent);
}

.status {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

/* ---------- Légende ---------- */

.legend {
  position: absolute;
  left: 14px;
  bottom: 22px;
  z-index: 2;
  width: 292px;
  padding: 12px 16px 12px;
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.legend h2 {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.legend .unit {
  margin: 2px 0 10px;
  font-size: 12px;
  color: var(--ink-soft);
}

.ramp {
  height: 12px;
  border-radius: 6px;
  border: 1px solid var(--line);
}

.ramp-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 5px;
  font-size: 12px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.ramp-labels span { white-space: nowrap; }
.ramp-labels span:nth-child(2) { text-align: center; }
.ramp-labels span:nth-child(3) { text-align: right; }

.legend .note {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.45;
  color: var(--ink-soft);
}

.legend .arrows-note:empty { display: none; }

/* ---------- Popup ---------- */

.maplibregl-popup-content {
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  box-shadow: var(--shadow);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 13px;
}

.maplibregl-popup-tip { border-top-color: var(--surface); border-bottom-color: var(--surface); }


.field label { display: block; font-size: 0.8rem; margin-bottom: 4px; }
.field output { float: right; font-variant-numeric: tabular-nums; opacity: 0.75; }
.field select, .field input[type="range"] { width: 100%; }
.field select { padding: 4px 6px; border-radius: 6px; }
.field:disabled { opacity: 0.45; }
.field:disabled .seg button { cursor: not-allowed; }

/* ---------- Mode simulation ---------- */

:root {
  --danger: #b91c1c;
  --danger-bg: #fde8e8;
  --danger-ink: #7f1d1d;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --danger: #f87171;
    --danger-bg: #3d1717;
    --danger-ink: #fecaca;
  }
}

:root[data-theme="dark"] {
  --danger: #f87171;
  --danger-bg: #3d1717;
  --danger-ink: #fecaca;
}

.sim-banner {
  flex: 0 0 auto;
  padding: 9px 16px;
  background: var(--danger-bg);
  color: var(--danger-ink);
  border-bottom: 2px solid var(--danger);
  font-size: 13.5px;
  line-height: 1.45;
  text-align: center;
}

.sim-banner strong {
  display: inline-block;
  margin-right: 4px;
  color: var(--danger);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 12.5px;
}

.sim-banner-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2px 10px;
}

.sim-details-btn {
  color: var(--danger-ink);
  font-size: 13px;
}

.sim-banner-more {
  display: block;
  margin-top: 4px;
  font-size: 12.5px;
}

/* Scénarios SSP : avertissement dans le bandeau « Détails » */
.scn-banner-extra {
  display: block;
  margin-top: 4px;
  font-weight: 600;
}

/* Scénarios SSP : curseurs, mention « non calibré », avertissement visible */
.scn-illus {
  margin: -4px 0 10px;
  font-style: italic;
}

.scn-warn {
  margin: 0 0 12px;
  padding: 8px 10px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: var(--danger-bg);
  color: var(--danger-ink);
  font-size: 12.5px;
  line-height: 1.45;
}

.scn-warn p { margin: 0; }
.scn-warn p + p { margin-top: 4px; font-size: 12px; opacity: 0.9; }

.panel {
  max-height: max(200px, calc(100% - 44px - 42%));
  overflow-y: auto;
}

.legend {
  max-height: 42%;
  overflow-y: auto;
}

.switch {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.switch input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 38px;
  width: 38px;
  height: 22px;
  margin: 0;
  border-radius: 999px;
  background: var(--line);
  cursor: pointer;
  transition: background 0.15s;
}

.switch input::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s;
}

.switch input:checked { background: var(--danger); }
.switch input:checked::after { transform: translateX(16px); }
.switch input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.sim-controls {
  padding: 10px 0 2px;
  margin: 0 0 4px;
  border-top: 1px dashed var(--danger);
}

.sim-controls .field legend {
  padding: 0;
  margin-bottom: 6px;
}

.ticks {
  position: relative;
  height: 14px;
  font-size: 11px;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
}

.ticks span {
  position: absolute;
  top: 0;
  transform: translateX(-50%);
  white-space: nowrap;
}

.radio {
  display: flex !important;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 3px 0;
  font-size: 14px;
  cursor: pointer;
}

.radio input { margin: 0; width: 16px; height: 16px; accent-color: var(--danger); }

.linkbtn {
  appearance: none;
  border: 0;
  padding: 0;
  background: none;
  color: var(--accent);
  font: inherit;
  font-size: 13px;
  text-align: left;
  text-decoration: underline;
  cursor: pointer;
}

.sim-controls > .linkbtn { display: block; margin-top: 8px; }

/* ---------- Légende : classes et flèches ---------- */

.classes,
.arrow-classes {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  font-size: 12px;
  color: var(--ink-soft);
}

.classes li,
.arrow-classes li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 3px 0;
}

.sw-box {
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid var(--line);
}

.arrow-block {
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.arrow-classes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px 10px;
  margin: 0;
  font-variant-numeric: tabular-nums;
}

.arrow-classes li { margin: 0; }

/* Pastille de flèche : même teinte que la carte, halo blanc (lisible en thème sombre) */
.sw-line {
  flex: 0 0 26px;
  display: inline-block;
  border-radius: 3px;
  background: var(--arrow-ink);
  box-shadow: 0 0 0 2px #ffffff;
}

/* Contours et overlays de simulation */
.overlay-key {
  list-style: none;
  display: grid;
  gap: 5px;
  margin: 10px 0 0;
  padding: 8px 0 0;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.35;
  color: var(--ink-soft);
}

.overlay-key li { display: flex; align-items: center; gap: 8px; }

.ok {
  flex: 0 0 26px;
  display: inline-block;
  height: 0;
  border-top: 2px solid;
}

.ok-src { border-color: #dc2626; }
.ok-nb { border-color: #f97316; }
.ok-imp-line { border-color: #f97316; border-top-style: dashed; }
.ok-imp-fill { height: 12px; border: 0; border-radius: 2px; background: rgba(249, 115, 22, 0.55); }

/* ---------- Filtres ---------- */

.filters {
  margin: 0 0 12px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
}

.filters > summary {
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  user-select: none;
}

.filters[open] > summary { margin-bottom: 8px; }

.filter-count {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.unit-note {
  margin: 0 0 4px;
  font-size: 11.5px;
  color: var(--ink-soft);
}

.field label.check {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 4px;
  font-size: 13.5px;
  font-weight: 400;
}

.field label.check input { margin: 0; width: 16px; height: 16px; accent-color: var(--accent); }
.field label.check b { font-variant-numeric: tabular-nums; font-weight: 600; }

.range-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.range-row input[type="number"] {
  width: 100%;
  margin-top: 2px;
  padding: 4px 6px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 13px;
}

.filters .linkbtn { margin-top: 4px; }

/* ---------- Fond de carte et petit écran (suite) ---------- */

@media (max-width: 640px) {
  .sim-banner { font-size: 12.5px; padding: 8px 12px; }
  .arrow-classes { grid-template-columns: 1fr; }
}

/* ---------- Légende : tête repliable ---------- */

.legend-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.legend-toggle {
  display: none;
  flex: 0 0 auto;
  padding: 2px 8px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
}

.legend-toggle::after { content: " ▾"; }
.legend.is-collapsed .legend-toggle::after { content: " ▴"; }

/* ---------- Petit écran (<= 640 px) : tiroir de réglages, légende réduite, carte dégagée ---------- */

@media (max-width: 640px) {
  .panel {
    top: 8px;
    left: 8px;
    right: 8px;
    width: auto;
    max-height: 70%;
    padding: 10px 12px;
  }

  .panel h1 { font-size: 17px; }
  .panel-head { align-items: center; }

  .drawer-toggle {
    display: inline-block;
    flex: 0 0 auto;
    padding: 7px 12px;
    border: 1px solid var(--accent);
    border-radius: 9px;
    background: var(--accent);
    color: var(--accent-ink);
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
  }

  .drawer-toggle[aria-expanded="true"] {
    background: transparent;
    color: var(--accent);
  }

  /* Tiroir fermé : seule la barre de titre reste visible */
  .panel:not(.is-open) { padding-top: 8px; padding-bottom: 8px; }
  .panel:not(.is-open) .sub,
  .panel:not(.is-open) .panel-body { display: none; }
  .panel .sub { margin: 2px 0 8px; }

  .legend {
    left: 8px;
    right: 8px;
    bottom: 8px;
    width: auto;
    padding: 8px 12px;
  }

  .legend .legend-head { align-items: center; }
  .legend h2 { font-size: 14px; }
  .legend-toggle { display: inline-block; }
  .legend.is-collapsed .legend-body { display: none; }
  .legend .ramp-block + .legend-body { margin-top: 8px; }
  .legend.is-collapsed .ramp-block { margin-top: 6px; }
  .legend .arrows-note { display: block; }

  .sim-banner { font-size: 12.5px; padding: 6px 12px; }
  .sim-banner-more { font-size: 12px; }
  .arrow-classes { grid-template-columns: 1fr; }
}