/* ============================================================
   Simulador de maniobres — estils base (Fase 0)
   Dark UI, responsive (desktop / tablet / mòbil)
   ============================================================ */

:root {
  --bg:        #0e1116;
  --bg-2:      #151a22;
  --surface:   #1b2029;
  --surface-2: #232a35;
  --border:    #2c333f;
  --text:      #e6eaf0;
  --text-dim:  #9aa4b2;
  --accent:    #4c9aff;
  --accent-2:  #2f6fd6;
  --danger:    #ff5d5d;
  --radius:    10px;
  --toolbar-h: 52px;
  --shadow:    0 8px 30px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

/* L'atribut [hidden] ha de guanyar sempre, encara que l'element
   tingui display:flex/grid per classe (modals, franges, etc.) */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

#app {
  display: grid;
  grid-template-rows: var(--toolbar-h) 1fr;
  grid-template-columns: 1fr;
  height: 100dvh;
}

/* ---------- Toolbar ---------- */
#toolbar {
  grid-row: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 12px;
  padding-top: env(safe-area-inset-top, 0);
  height: calc(var(--toolbar-h) + env(safe-area-inset-top, 0));
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  z-index: 20;
}

.brand { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.brand-mark { color: var(--accent); font-size: 18px; }
.brand-name { font-size: 15px; letter-spacing: 0.2px; }

.toolbar-actions { display: flex; align-items: center; gap: 8px; }

@media (max-width: 480px) {
  .brand-name { display: none; }
  #scale-readout { max-width: 40vw; overflow: hidden; text-overflow: ellipsis; }
}

.pill {
  font-size: 12px;
  color: var(--text-dim);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 10px;
  white-space: nowrap;
}

/* ---------- Botons ---------- */
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn-ghost { background: transparent; border-color: transparent; font-size: 18px; padding: 6px 10px; }
.btn-ghost:hover { background: var(--surface); }
.btn-primary { background: var(--accent-2); border-color: var(--accent-2); }
.btn-primary:hover { background: var(--accent); }

/* ---------- Stage (vista) ---------- */
#stage {
  grid-row: 2;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 40%, #12171f 0%, #0b0e13 100%);
  touch-action: none; /* gestionem els gestos nosaltres */
}

#view {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hud {
  position: absolute;
  left: 12px;
  bottom: 12px;
  display: flex;
  gap: 8px;
  pointer-events: none;
}

/* ---------- Barra d'escala ---------- */
.scalebar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: rgba(14, 17, 22, 0.7);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  backdrop-filter: blur(4px);
}
.scalebar-bar {
  height: 6px;
  border: 1px solid var(--text);
  border-top: none;
  width: 100px; /* s'actualitza per JS */
}
.scalebar-label { font-size: 11px; color: var(--text); font-variant-numeric: tabular-nums; }

/* ---------- Controls de vista ---------- */
.view-controls {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 10;
  transition: bottom 0.2s ease;
}
/* Quan es condueix, pujar els controls de vista per no tapar-los */
#stage.driving .view-controls { bottom: 108px; }
@media (max-width: 640px) {
  #stage.driving .view-controls { bottom: 120px; }
}
.vc-btn {
  width: 42px;
  height: 42px;
  padding: 0;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(27, 32, 41, 0.9);
  backdrop-filter: blur(4px);
}

/* ---------- Ajuda ---------- */
.modal.help h3 { margin: 16px 0 8px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-dim); }
.modal.help h3:first-child { margin-top: 0; }
.help-steps, .help-list { margin: 0 0 6px; padding-left: 20px; }
.help-steps li { margin-bottom: 10px; font-size: 14px; line-height: 1.5; }
.help-list li { margin-bottom: 6px; font-size: 14px; line-height: 1.5; color: var(--text-dim); }
.help-steps strong { color: var(--text); }
.help em { color: var(--accent); font-style: normal; }

/* ---------- Franja de calibratge ---------- */
.cal-banner {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(47, 111, 214, 0.95);
  color: #fff;
  border-radius: 999px;
  padding: 8px 8px 8px 18px;
  box-shadow: var(--shadow);
  z-index: 15;
  max-width: calc(100vw - 24px);
}
.cal-banner span { font-size: 14px; font-weight: 500; }
.cal-banner .btn-ghost { color: #fff; font-size: 13px; padding: 6px 12px; }
.cal-banner .btn-ghost:hover { background: rgba(255, 255, 255, 0.15); }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 40;
  padding: 20px;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  width: min(360px, 100%);
  box-shadow: var(--shadow);
}
.modal h3 { margin: 0 0 6px; font-size: 17px; }
.modal .muted { margin: 0 0 14px; }
.field {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 12px;
  margin-bottom: 12px;
}
.field input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 18px;
  padding: 10px 0;
  outline: none;
  min-width: 0;
}
.field .unit { color: var(--text-dim); font-size: 15px; }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 6px; }

/* ---------- Controls de conducció ---------- */
.drive-controls {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  display: flex;
  align-items: stretch;
  gap: 10px;
  background: rgba(14, 17, 22, 0.82);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
  backdrop-filter: blur(6px);
  z-index: 12;
  width: min(560px, calc(100vw - 24px));
}
.pedal {
  flex: 0 0 84px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  line-height: 1.3;
}
.pedal:active { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }
.steer { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 8px; }
.steer input[type="range"] { width: 100%; accent-color: var(--accent); height: 28px; }
.steer-info {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-dim);
}
.steer-info span:nth-child(2) { color: var(--text); font-variant-numeric: tabular-nums; }

/* ---------- Recorregut (Fase 7) ---------- */
.route-controls { margin-top: 4px; }
.route-msg {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(180, 130, 255, 0.95);
  color: #14091f;
  font-size: 13px;
  font-weight: 600;
  border-radius: 999px;
  padding: 8px 16px;
  box-shadow: var(--shadow);
  z-index: 15;
  max-width: calc(100vw - 24px);
  text-align: center;
}

/* ---------- Simulació ---------- */
.btn.active {
  background: var(--accent-2);
  border-color: var(--accent-2);
  color: #fff;
}
.range-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
  margin: 4px 0 12px;
}
.range-label span { color: var(--text); font-variant-numeric: tabular-nums; }
.range-label input[type="range"] { width: 100%; accent-color: var(--accent); }
.legend-turn {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin: 12px 0 0;
  font-size: 12px;
  color: var(--text-dim);
}
.legend-turn span { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot.red { background: #ff5d5d; }
.dot.yellow { background: #ffcc33; }
.dot.blue { background: #4c9aff; }

/* ---------- Vehicles: selector i resum ---------- */
.select {
  width: 100%;
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  margin-bottom: 8px;
}
.btn-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 10px; }
.btn-row .btn { flex: 1; min-width: 64px; padding: 8px 6px; font-size: 13px; }

.veh-summary {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.6;
}
.veh-summary strong { color: var(--text); }
.veh-summary .empty { font-style: italic; }

/* ---------- Importar de km77 ---------- */
.import-box {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 14px;
}
.import-label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.import-row { display: flex; gap: 8px; }
.import-row input {
  flex: 1;
  min-width: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 14px;
  padding: 9px 10px;
  outline: none;
}
.import-row input:focus { border-color: var(--accent); }
.import-row .btn { flex: 0 0 auto; }
.import-status { font-size: 13px; margin: 8px 0 0; }
.import-status.ok { color: #7bd88f; }
.import-status.err { color: #ffb4b4; }
.import-status.info { color: var(--text-dim); }

/* ---------- Modal gran / formulari ---------- */
.modal-lg { width: min(560px, 100%); max-height: 90dvh; overflow-y: auto; }
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
  margin-bottom: 8px;
}
.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--text-dim);
}
.form-grid label.full { grid-column: 1 / -1; }
.form-grid label em { color: var(--accent); font-style: normal; }
.form-grid input {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
  padding: 9px 10px;
  outline: none;
}
.form-grid input:focus { border-color: var(--accent); }
.form-legend { font-size: 12px; color: var(--text-dim); margin: 0 0 12px; }
.form-legend em { color: var(--accent); font-style: normal; }

.computed {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 10px;
  font-size: 13px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 14px;
}
.computed .row { display: flex; justify-content: space-between; gap: 8px; }
.computed .row span:first-child { color: var(--text-dim); }
.computed .row span:last-child { color: var(--text); font-variant-numeric: tabular-nums; }
.computed .calc { color: var(--accent) !important; }

.errors {
  background: rgba(255, 93, 93, 0.12);
  border: 1px solid rgba(255, 93, 93, 0.4);
  color: #ffb4b4;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 10px;
  font-size: 13px;
}
.errors ul { margin: 0; padding-left: 18px; }

@media (max-width: 480px) {
  .form-grid { grid-template-columns: 1fr; }
  .computed { grid-template-columns: 1fr; }
}

/* ---------- Llista de capes ---------- */
.layer-list { display: flex; flex-direction: column; gap: 2px; }
.layer-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 6px;
  border-radius: 8px;
}
.layer-item:hover { background: var(--surface-2); }
.layer-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  padding: 4px 0;
  cursor: pointer;
  user-select: none;
}
.layer-toggle input { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }
.layer-toggle span { font-size: 14px; }
.layer-action {
  flex: 0 0 auto;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
}
.layer-action:hover { background: var(--surface); color: var(--text); border-color: var(--danger); }

/* ---------- Panell ---------- */
.panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100dvh;
  width: min(360px, 88vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 30;
  display: flex;
  flex-direction: column;
}
.panel.open { transform: translateX(0); }

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  padding-top: calc(14px + env(safe-area-inset-top, 0));
  border-bottom: 1px solid var(--border);
}
.panel-header h2 { margin: 0; font-size: 16px; }

.panel-body { padding: 16px; overflow-y: auto; }

.panel-section { margin-bottom: 20px; }
.panel-section h3 {
  margin: 0 0 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-dim);
}

.muted { color: var(--text-dim); font-size: 13px; margin: 0; }

/* ---------- Responsive: panell com a full inferior en mòbil ---------- */
@media (max-width: 640px) {
  .panel {
    top: auto;
    bottom: 0;
    right: 0;
    width: 100vw;
    height: min(70dvh, 520px);
    border-left: none;
    border-top: 1px solid var(--border);
    border-radius: 16px 16px 0 0;
    transform: translateY(100%);
  }
  .panel.open { transform: translateY(0); }
}