/* Optimal Transport Networks app — dark sidebar + translucent map controls
 * (design language mirrors the Infrastructure Risk Analyzer app) */

:root {
  --q-primary: #2563eb;          /* blue-600 */
  --sb-bg: #111827;              /* gray-900 */
  --sb-box: #1f2937;             /* gray-800 */
  --sb-border: #374151;          /* gray-700 */
  --sb-text: #d1d5db;            /* gray-300 */
  --sb-muted: #9ca3af;           /* gray-400 */
  --sb-width: 360px;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}

#otn-shell {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* ------------------------------------------------------------- sidebar */

#otn-sidebar {
  position: relative;
  width: var(--sb-width);
  min-width: 0;
  height: 100vh;
  background: var(--sb-bg);
  color: var(--sb-text);
  transition: width 0.3s ease;
  overflow: hidden;
  flex-shrink: 0;
}

#otn-shell.sb-collapsed #otn-sidebar { width: 0; }

#sidebar-scroll {
  width: var(--sb-width);
  height: 100%;
  overflow-y: auto;
  padding: 12px 16px 24px 16px;
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: var(--sb-border) transparent;
}

#sidebar-scroll::-webkit-scrollbar { width: 8px; }
#sidebar-scroll::-webkit-scrollbar-thumb { background: var(--sb-border); border-radius: 4px; }

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 4px;
}

.sidebar-toggle-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--sb-text);
  border: none;
  border-radius: 4px;
  width: 24px;
  height: 24px;
  cursor: pointer;
  padding: 0;
}
.sidebar-toggle-btn svg { display: block; }
.sidebar-toggle-btn:hover { background: var(--sb-box); color: #fff; }

#sidebar-reopen {
  position: absolute;
  top: 12px;
  left: 10px;
  z-index: 1001;
  background: var(--sb-bg);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}
#sidebar-reopen:hover { background: var(--sb-box); color: #fff; }

#otn-sidebar h4.app-title,
.app-title {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 1.32rem;
  font-weight: 700;
  line-height: 1.25;
  color: #fff !important;
}

.subtitle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 4px 0 14px 0;
}

.app-subtitle {
  margin: 0;
  font-size: 0.74rem;
  color: var(--sb-muted);
  flex: 1;
}

.app-subtitle-link {
  color: var(--sb-muted);
  text-decoration: underline;
  text-decoration-color: rgba(156, 163, 175, 0.45);
  text-underline-offset: 2px;
}
.app-subtitle-link:hover { color: #fff; text-decoration-color: rgba(255, 255, 255, 0.6); }

/* label + info-icon rows */
.field-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 14px 0 5px 0;
}

.field-label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--sb-text);
}

.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 17px;
  height: 17px;
  border: 1.4px solid var(--sb-muted);
  border-radius: 50%;
  color: var(--sb-muted);
  font-size: 11px;
  font-weight: 700;
  font-style: italic;
  font-family: Georgia, serif;
  cursor: pointer;
  user-select: none;
  transition: color 0.15s, border-color 0.15s;
}
.info-icon::before { content: "i"; }
.info-icon:hover { color: #fff; border-color: #fff; }

.sep {
  border: none;
  border-top: 1px solid var(--sb-border);
  margin: 16px 0 2px 0;
}

/* upload fields: compact dark boxes (InfraRisk style) */
.upload-field {
  background: var(--sb-box);
  border: 1px solid var(--sb-border);
  border-radius: 6px;
  padding: 7px 12px;
}

.file-input {
  width: 100%;
  border: none;
  background: transparent;
  color: var(--sb-muted);
  font-size: 0.78rem;
  cursor: pointer;
  padding: 0;
}
.file-input::file-selector-button {
  margin-right: 14px;
  padding: 4px 12px;
  border: none;
  border-radius: 6px;
  background: #2563eb;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s;
}
.file-input::file-selector-button:hover { background: #3b82f6; }

.upload-loaded {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.upload-meta { flex: 1; min-width: 0; }
.upload-name {
  margin: 0;
  font-size: 0.78rem;
  color: var(--sb-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.upload-sub {
  margin: 2px 0 0 0;
  font-size: 0.72rem;
  color: var(--sb-muted);
}
.clear-btn {
  background: var(--sb-border) !important;
  color: var(--sb-text) !important;
  border-radius: 6px;
  font-size: 0.72rem;
  flex-shrink: 0;
}
.clear-btn:hover { color: #f87171 !important; }

.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.ghost-btn {
  background: var(--sb-box) !important;
  color: var(--sb-text) !important;
  border: 1px solid var(--sb-border);
  border-radius: 6px;
  font-size: 0.76rem;
}
.ghost-btn:hover { color: #fff !important; }

.net-summary {
  font-size: 0.8rem;
  color: #6ee7b7; /* emerald-300 */
  margin: 8px 0 0 0;
  font-weight: 500;
}
.net-summary::before { content: "✓ "; }

.warnings-text {
  font-size: 0.74rem;
  color: #fbbf24; /* amber-400 */
  margin: 6px 0 0 0;
  white-space: pre-wrap;
}

.param-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px 12px;
}

/* three compact fields on one row, label stacked on top so the narrow
   number inputs get the full column width (solver controls, sigma/a/nu) */
.triple-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.triple-grid .pfield {
  flex-direction: column;
  align-items: stretch;
  gap: 3px;
}
.triple-grid .pfield-label {
  width: auto;
  font-size: 0.72rem;
}

/* name-on-the-left parameter inputs */
.pfield {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}
.pfield-label {
  font-size: 0.78rem;
  color: var(--sb-text);
  flex-shrink: 0;
  width: 52px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pfield .q-field {
  flex: 1;
  min-width: 0;
}

.budget-text {
  font-size: 0.72rem;
  color: var(--sb-muted);
  margin: 5px 0 0 0;
}

/* advanced expansion */
.advanced {
  margin-top: 16px;
  background: var(--sb-box);
  border: 1px solid var(--sb-border);
  border-radius: 6px;
}
.advanced .q-item { min-height: 36px; padding: 0 12px; }
.advanced .q-item:hover,
.advanced.q-expansion-item--expanded > .q-expansion-item__container > .q-item {
  background: rgba(55, 65, 81, 0.55);
}
.advanced .advanced-header,
.advanced .q-item__label {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--sb-text);
}
.advanced .q-focus-helper { display: none; } /* avoid Quasar ripple overlay on dark header */
.adv-inner { padding: 4px 12px 10px 12px; }
.adv-inner .param-grid { margin-bottom: 8px; }
.adv-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--sb-border);
}
.adv-info-text { font-size: 0.72rem; color: var(--sb-muted); }

.run-btn {
  width: 100%;
  margin-top: 18px;
  border-radius: 6px;
}

.status-line {
  font-size: 0.76rem;
  color: var(--sb-muted);
  margin: 10px 0 0 0;
  min-height: 1.2em;
}

.results-box {
  margin-top: 14px;
  padding: 10px 12px;
  background: var(--sb-box);
  border: 1px solid var(--sb-border);
  border-radius: 6px;
}
.results-box .field-row { margin: 0 0 4px 0; }
.results-text {
  font-size: 0.8rem;
  margin: 0 0 8px 0;
  color: #6ee7b7;
}
.dl-link {
  display: block;
  font-size: 0.78rem;
  margin: 3px 0;
  color: #60a5fa; /* blue-400 */
  text-decoration: none;
}
.dl-link:hover { text-decoration: underline; }

/* Quasar dark-field harmonization */
#otn-sidebar .q-field { margin-bottom: 0; padding-bottom: 0; }
#otn-sidebar .q-field--with-bottom { padding-bottom: 0; }
#otn-sidebar .q-field__bottom { display: none; } /* no reserved hint space between inputs */
#otn-sidebar .q-field--labeled { padding-top: 0; } /* Stipple's theme reserves 25px above every labeled field */
#otn-sidebar .q-field--outlined .q-field__control {
  background: var(--sb-box);
  border-radius: 6px;
}
#otn-sidebar .q-field--outlined .q-field__control:before { border-color: var(--sb-border); }
#otn-sidebar .q-field__label, #otn-sidebar .q-field__native { color: var(--sb-text); }

/* tighter boxes: Quasar's dense fields are 40px tall — trim to 30px */
#otn-sidebar .q-field--dense .q-field__control,
#otn-sidebar .q-field--dense .q-field__marginal {
  height: 30px;
  min-height: 30px;
}
#otn-sidebar .q-field--dense .q-field__native {
  min-height: 28px;
  padding-top: 0;
  padding-bottom: 0;
}

/* number-input nudge arrows: dark-rendered native spinner, subtle until hovered
   (color-scheme:dark replaces the light-gray box Chrome draws by default) */
#otn-sidebar input[type="number"] { color-scheme: dark; }
#otn-sidebar input[type="number"]::-webkit-inner-spin-button,
#otn-sidebar input[type="number"]::-webkit-outer-spin-button {
  opacity: 0.55;
  height: 24px; /* arrows scale with the box; still inside the 30px control */
  width: 18px;
  cursor: pointer;
}
#otn-sidebar input[type="number"]:hover::-webkit-inner-spin-button,
#otn-sidebar input[type="number"]:hover::-webkit-outer-spin-button {
  opacity: 0.95;
}

/* linear-solver options menu: portals to <body>, so the dark theme must be
   applied explicitly (otherwise items render white-on-white) */
.solver-menu {
  background: var(--sb-box) !important;
  color: var(--sb-text) !important;
}
.solver-menu .q-item {
  color: var(--sb-text);
  min-height: 30px;
}
.solver-menu .q-item:hover { background: var(--sb-border); }
.solver-menu .q-item--active { color: #60a5fa; }

/* toggles: one per row, with a little breathing room */
#otn-sidebar .q-toggle {
  display: flex !important;
  margin: 10px 0;
}
#otn-sidebar .q-toggle__label { font-size: 0.78rem; color: var(--sb-text); }

/* insurance: hide any stray media element injected into the page (e.g. by
   browser extensions) — the app itself uses none */
#otn-main video, #otn-main audio, body > video, body > audio { display: none !important; }

/* ---------------------------------------------------------------- main */

#otn-main {
  flex: 1;
  position: relative;
  height: 100vh;
  min-width: 0;
}

#map {
  position: absolute;
  inset: 0;
  z-index: 0;
}

/* floating map cards (top right stack) */
#map-topright {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.map-card {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 10px;
  box-shadow: none;
  backdrop-filter: blur(3px);
}

#basemap-card { padding: 6px 10px; }
#basemap-select {
  border: none;
  background: transparent;
  font-size: 0.9rem;
  color: #111827;
  padding: 5px 2px;
  width: 180px;
  cursor: pointer;
  outline: none;
}

#layers-card { padding: 8px 14px 10px 14px; }

/* fixed columns so the colour/size/transform controls align across rows */
.layer-grid {
  display: grid;
  grid-template-columns: 16px auto 168px 76px 96px 58px;
  gap: 5px 5px;
  align-items: center;
}
.lg-head {
  font-size: 10px;
  color: #6b7280;
  font-weight: 600;
  padding-left: 2px;
}
.layer-grid input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #2563eb;
  cursor: pointer;
}
.layer-grid label {
  font-size: 0.88rem;
  color: #374151;
  cursor: pointer;
}
.layer-grid select {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid #d1d5db;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.7);
  font-size: 0.78rem;
  color: #1f2937;
  padding: 2px 4px;
  cursor: pointer;
  outline: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.layer-grid select:disabled {
  opacity: 0.45;
  cursor: default;
}
#map-summary {
  margin-top: 5px;
  font-size: 0.74rem;
  color: #111827;
  font-weight: 600;
  text-align: right;
}
#map-summary:empty { display: none; }

#zoom-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#zoom-card button {
  width: 38px;
  height: 36px;
  border: none;
  background: transparent;
  font-size: 1.1rem;
  font-weight: 500;
  color: #111827;
  cursor: pointer;
}
#zoom-card button:hover { background: rgba(243, 244, 246, 0.7); }

/* legends (top left, translucent) */
#legend {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: top 0.3s ease;
}
#otn-shell.sb-collapsed #legend { top: 60px; } /* clear the reopen button */

.legend-block {
  background: rgba(255, 255, 255, 0.55);
  border-radius: 8px;
  padding: 8px 12px;
  backdrop-filter: blur(2px);
}
.legend-label {
  font-size: 10px;
  color: #1f2937;
  margin-bottom: 4px;
}
.legend-bar {
  width: 220px;
  height: 12px;
  border-radius: 3px;
}
.legend-ticks {
  position: relative;
  width: 220px;
  height: 14px;
}
.legend-ticks span {
  position: absolute;
  top: 2px;
  font-size: 10px;
  color: #1f2937;
  transform: translateX(-50%);
  white-space: nowrap;
}
.legend-ticks span:first-child { transform: none; }
.legend-ticks span:last-child { transform: translateX(-100%); }

/* leaflet chrome */
.leaflet-control-scale { margin-bottom: 12px !important; margin-left: 12px !important; }
.leaflet-control-scale-line {
  background: rgba(255, 255, 255, 0.6);
  border-color: #4b5563;
  color: #1f2937;
  border-radius: 3px;
}
.leaflet-control-attribution { background: rgba(255, 255, 255, 0.6) !important; }

/* console */
#console-panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--console-height, 34%);
  min-height: 120px;
  max-height: 85%;
  z-index: 1100;
  background: rgba(17, 24, 39, 0.96);
  color: #d1d5db;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--sb-border);
  backdrop-filter: blur(2px);
}

#console-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 5px 12px;
  background: var(--sb-box);
  font-size: 0.78rem;
  cursor: ns-resize;
  touch-action: none;
}
.console-title { font-weight: 600; color: #fff; }
#console-status { color: #60a5fa; font-style: italic; }
#console-header button {
  background: var(--sb-border);
  color: var(--sb-text);
  border: none;
  border-radius: 5px;
  padding: 2px 9px;
  font-size: 0.72rem;
  cursor: pointer;
}
#console-header button:hover { background: #4b5563; color: #fff; }

#console-body {
  flex: 1;
  overflow-y: auto;
  margin: 0;
  padding: 6px 12px;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.72rem;
  line-height: 1.35;
  white-space: pre-wrap;
  scrollbar-width: thin;
  scrollbar-color: var(--sb-border) transparent;
}

#console-reopen {
  position: absolute;
  bottom: 34px;
  left: 12px;
  z-index: 1000;
  background: rgba(17, 24, 39, 0.85);
  color: #d1d5db;
  border: none;
  border-radius: 6px;
  padding: 5px 12px;
  font-size: 0.76rem;
  cursor: pointer;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}
#console-reopen:hover { background: rgba(31, 41, 55, 0.95); color: #fff; }

.hidden { display: none !important; }

/* info modal */
#info-modal {
  position: fixed;
  inset: 0;
  z-index: 5000;
  display: flex;
  align-items: center;
  justify-content: center;
}
#info-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
}
#info-card {
  position: relative;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  padding: 24px;
  width: 100%;
  max-width: 560px;
  max-height: 88vh;
  overflow-y: auto;
  margin: 0 16px;
}
#info-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: transparent;
  border: none;
  font-size: 1rem;
  color: #6b7280;
  cursor: pointer;
  border-radius: 6px;
  padding: 4px 8px;
}
#info-close:hover { background: #f3f4f6; color: #111827; }
#info-title {
  margin: 0 24px 14px 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: #111827;
}
#info-body { font-size: 0.86rem; color: #4b5563; line-height: 1.5; }
#info-body h4 { margin: 12px 0 3px 0; font-size: 0.86rem; font-weight: 700; color: #374151; }
#info-body p { margin: 4px 0; }
#info-body ul { margin: 4px 0 4px 4px; padding-left: 16px; }
#info-body li { margin: 2px 0; }
#info-body code {
  background: #f3f4f6;
  border-radius: 4px;
  padding: 0 4px;
  font-size: 0.8rem;
  color: #111827;
}
#info-body table { border-collapse: collapse; margin: 6px 0; width: 100%; }
#info-body th, #info-body td {
  text-align: left;
  font-size: 0.78rem;
  padding: 4px 8px;
  border-bottom: 1px solid #e5e7eb;
}
#info-body th { color: #374151; }
#info-body .eq {
  margin: 8px 0 10px 0;
  padding: 8px 12px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  text-align: center;
  font-family: Georgia, "Times New Roman", serif;
  font-style: italic;
  font-size: 0.95rem;
  color: #111827;
}
#info-body .note {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid #d1d5db;
  font-size: 0.76rem;
  color: #6b7280;
}

/* popups */
.otn-popup table { border-collapse: collapse; margin-top: 4px; font-size: 0.75rem; }
.otn-popup td { padding: 1px 8px 1px 0; border-bottom: 1px solid #eee; }
.otn-popup td:last-child { text-align: right; font-variant-numeric: tabular-nums; }