/* Google-Maps inspired light theme.
   Surfaces: white. Borders: hairlines. Accent: Google blue.
   Per-day biome lives only as a thin colored stripe on the day card. */

:root {
  --gm-surface: #ffffff;
  --gm-surface-alt: #f1f3f4;
  --gm-surface-2: #f8f9fa;
  --gm-border: #e8eaed;
  --gm-border-strong: #dadce0;
  --gm-text: #202124;
  --gm-text-secondary: #5f6368;
  --gm-blue: #1a73e8;
  --gm-blue-hover: #1765cc;
  --gm-yellow: #fbbc04;
  --gm-red: #ea4335;
  --gm-green: #34a853;
  --gm-shadow-1: 0 1px 2px rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
  --gm-shadow-2: 0 2px 6px 2px rgba(60,64,67,0.15);
  --gm-shadow-3: 0 4px 12px rgba(60,64,67,0.18);

  --gm-radius: 8px;
  --gm-radius-pill: 24px;

  /* per-day accent — assigned by JS, overridden per view */
  --day-accent: var(--gm-blue);

  font-size: 16px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  background: var(--gm-surface);
  color: var(--gm-text);
  font-family: "Roboto", system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ---- Top bar ---- */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 20px;
  background: var(--gm-surface);
  border-bottom: 1px solid var(--gm-border);
  box-shadow: 0 1px 0 rgba(60,64,67,0.05);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 28px; height: 28px;
  background:
    radial-gradient(circle at 32% 32%, var(--gm-yellow) 0%, transparent 60%),
    radial-gradient(circle at 70% 60%, var(--gm-red) 0%, transparent 60%),
    radial-gradient(circle at 50% 88%, var(--gm-green) 0%, transparent 60%),
    var(--gm-blue);
  border-radius: 50%;
  box-shadow: var(--gm-shadow-1);
}
.brand-title { font-weight: 500; font-size: 16px; letter-spacing: 0.0107em; color: var(--gm-text); }
.brand-sub { font-size: 12px; color: var(--gm-text-secondary); }

.tabs { display: flex; gap: 4px; }
.tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--gm-text-secondary);
  padding: 8px 16px;
  border-radius: var(--gm-radius-pill);
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.tab:hover { color: var(--gm-text); background: var(--gm-surface-alt); }
.tab[aria-selected="true"] {
  background: color-mix(in oklab, var(--gm-blue) 12%, transparent);
  color: var(--gm-blue);
}

.view { flex: 1; }
.view[hidden] { display: none; }

/* ---- Day view (date rail + day card) ---- */
.view-day { display: flex; flex-direction: column; }

.progress-strip {
  max-width: 720px;
  margin: 18px auto 0;
  padding: 0 20px;
}
.progress-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  border-radius: var(--gm-radius);
  padding: 12px 16px;
}
.progress-cell {
  display: grid;
  grid-template-columns: 1fr auto;
  grid-template-rows: auto auto;
  column-gap: 10px;
  align-items: baseline;
}
.progress-label {
  grid-column: 1; grid-row: 1;
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  color: var(--gm-text-secondary);
}
.progress-value {
  grid-column: 1; grid-row: 2;
  font-size: 15px; font-weight: 500; color: var(--gm-text);
}
.progress-of { color: var(--gm-text-secondary); font-weight: 400; font-size: 13px; }
.progress-pct {
  grid-column: 2; grid-row: 2;
  font-size: 13px; color: var(--gm-text-secondary); font-variant-numeric: tabular-nums;
}
.progress-bar {
  grid-column: 1 / span 2; grid-row: 3;
  height: 4px;
  margin-top: 6px;
  background: var(--gm-surface-alt);
  border-radius: 2px;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--gm-blue);
  transition: width 0.25s ease;
}
.progress-bar-fill-miles { background: var(--day-accent); }

@media (max-width: 720px) {
  .progress-strip { padding: 0 14px; }
  .progress-row { grid-template-columns: 1fr; gap: 12px; padding: 10px 14px; }
}

.date-rail {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 14px 20px;
  scroll-behavior: smooth;
  background: var(--gm-surface);
  border-bottom: 1px solid var(--gm-border);
  scrollbar-width: thin;
  scrollbar-color: var(--gm-border-strong) transparent;
}
.date-rail::-webkit-scrollbar { height: 6px; }
.date-rail::-webkit-scrollbar-thumb { background: var(--gm-border-strong); border-radius: 3px; }

.date-chip {
  flex: 0 0 auto;
  position: relative;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-width: 64px;
  padding: 8px 12px 12px;
  border-radius: 12px;
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  color: var(--gm-text-secondary);
  font: inherit;
  cursor: pointer;
  outline: none;
  transition: all 0.15s ease;
}
.chip-bar {
  position: absolute;
  left: 10px; right: 10px; bottom: 5px;
  height: 3px;
  border-radius: 2px;
  background: var(--chip-accent, var(--gm-blue));
  transition: opacity 0.15s ease;
}
.date-chip.is-rest .chip-bar {
  background: transparent;
  border-top: 2px dashed var(--gm-border-strong);
  border-radius: 0;
  bottom: 6px;
  height: 0;
}
.date-chip[aria-selected="true"] .chip-bar { background: rgba(255,255,255,0.85); }
.date-chip[aria-selected="true"].is-rest .chip-bar { border-top-color: rgba(255,255,255,0.7); }
.chip-camp {
  position: absolute;
  top: 4px; right: 6px;
  font-size: 11px;
  line-height: 1;
}
.date-chip:hover { background: var(--gm-surface-alt); color: var(--gm-text); }
.date-chip:focus-visible {
  box-shadow: 0 0 0 2px var(--gm-blue);
  border-color: var(--gm-blue);
}
.date-chip[aria-selected="true"] {
  background: var(--gm-blue);
  color: #fff;
  border-color: var(--gm-blue);
  box-shadow: var(--gm-shadow-1);
}
.date-chip[aria-selected="true"]:focus-visible {
  box-shadow: var(--gm-shadow-1), 0 0 0 2px color-mix(in oklab, var(--gm-blue) 50%, white);
}
.date-chip.is-today {
  border-color: var(--gm-blue);
}
.date-chip[aria-selected="true"].is-today { box-shadow: 0 0 0 2px color-mix(in oklab, var(--gm-blue) 30%, transparent); }
.date-chip.is-past { opacity: 0.55; }
.date-chip.is-past:hover { opacity: 0.85; }
.date-chip.is-past[aria-selected="true"] { opacity: 1; }
.chip-dow { font-size: 10px; font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; opacity: 0.85; }
.chip-day { font-size: 18px; font-weight: 500; line-height: 1.1; margin-top: 2px; }
.chip-mon { font-size: 11px; opacity: 0.85; margin-top: 2px; }

.day-card {
  max-width: 720px;
  margin: 28px auto 28px;
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  border-radius: var(--gm-radius);
  box-shadow: var(--gm-shadow-1);
  overflow: hidden;
}
.day-stripe { height: 4px; background: var(--day-accent); }
.day-body { padding: 24px 28px 26px; }

.day-eyebrow {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--gm-text-secondary);
  font-weight: 500;
}
.day-eyebrow .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--day-accent); }

.day-title {
  font-size: clamp(24px, 3.4vw, 32px);
  font-weight: 500;
  letter-spacing: 0.0107em;
  line-height: 1.2;
  margin: 8px 0 6px;
  color: var(--gm-text);
}
.day-route {
  font-size: 16px;
  color: var(--gm-text);
  margin-top: 4px;
}
.day-route .day-arrow { color: var(--gm-text-secondary); margin: 0 6px; }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  margin-left: 6px;
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--gm-radius-pill);
}
.badge-rest {
  background: color-mix(in oklab, var(--gm-green) 16%, transparent);
  color: var(--gm-green);
}
.badge-camp {
  background: color-mix(in oklab, var(--gm-yellow) 22%, transparent);
  color: #8b6a00;
  letter-spacing: 0.08em;
}

.day-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px 18px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--gm-border);
}
.stat-label {
  font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; font-weight: 500;
  color: var(--gm-text-secondary); margin-bottom: 4px;
}
.stat-value { font-size: 14px; color: var(--gm-text); }

.day-map {
  position: relative;
  isolation: isolate;
  margin-top: 22px;
  height: 220px;
  border-radius: var(--gm-radius);
  overflow: hidden;
  border: 1px solid var(--gm-border);
  background: #e5e3df;
  z-index: 0;
}
.day-map .leaflet-container { font-family: inherit; background: #e5e3df; }

.day-cta { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--gm-border); display: flex; justify-content: flex-end; }

.btn-suggest {
  background: var(--gm-surface);
  color: var(--gm-blue);
  border: 1px solid var(--gm-border-strong);
  border-radius: var(--gm-radius-pill);
  padding: 7px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn-suggest:hover { background: color-mix(in oklab, var(--gm-blue) 8%, var(--gm-surface)); border-color: var(--gm-blue); }

.day-suggestions { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--gm-border); }
.day-suggestions h3 { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gm-text-secondary); margin: 0 0 10px; font-weight: 500; }
.day-suggestions ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.day-suggestions li {
  background: var(--gm-surface-2);
  border: 1px solid var(--gm-border);
  border-radius: var(--gm-radius);
  padding: 10px 14px;
  font-size: 14px; line-height: 1.45;
}
.day-suggestions strong { color: var(--gm-text); font-weight: 500; }
.day-suggestions .suggester { color: var(--gm-text-secondary); font-size: 12px; margin-left: 6px; }
.suggestion-body { margin-top: 4px; color: var(--gm-text); }
.suggestion-link { display: inline-block; margin-top: 4px; font-size: 12px; color: var(--gm-blue); text-decoration: none; }
.suggestion-link:hover { text-decoration: underline; }

.day-empty { max-width: 540px; margin: 10vh auto 0; text-align: center; color: var(--gm-text-secondary); padding: 24px; }
.day-empty h2 { color: var(--gm-text); margin: 0 0 8px; font-weight: 500; font-size: 20px; }

/* ---- Trip view ---- */
.view-trip {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: calc(100dvh - 57px);
}
#map {
  width: 100%; height: 100%;
  background: #e5e3df;
}
.trip-legend {
  border-right: 1px solid var(--gm-border);
  background: var(--gm-surface);
  overflow-y: auto;
  padding: 18px 18px 24px;
}
.trip-legend h2 { font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gm-text-secondary); margin: 0 0 14px; font-weight: 500; }
.leg-block { margin-bottom: 18px; }
.leg-block .leg-name { font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--gm-text); }
.stop-row {
  display: grid; grid-template-columns: 16px 1fr auto; gap: 8px; align-items: center;
  padding: 6px 8px;
  font-size: 13px; color: var(--gm-text);
  border-radius: 6px;
  margin: 0 -8px;
}
.stop-row:hover { background: var(--gm-surface-alt); }
.stop-row .stop-bullet {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--gm-blue);
  border: 2px solid var(--gm-surface);
  box-shadow: 0 0 0 1px var(--gm-border-strong);
}
.stop-row.start .stop-bullet { background: var(--gm-green); }
.stop-row.end .stop-bullet { background: var(--gm-red); }
.stop-text {
  display: flex; flex-direction: column; gap: 1px;
  cursor: pointer;
  min-width: 0;
}
.stop-name { font-weight: 500; line-height: 1.2; }
.stop-date {
  font-size: 11px;
  color: var(--gm-text-secondary);
  letter-spacing: 0.02em;
  line-height: 1.2;
}
.route-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: transparent;
  border: none;
  border-radius: 50%;
  color: var(--gm-blue);
  cursor: pointer;
  padding: 0;
  opacity: 0.6;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease, transform 0.05s ease;
}
.route-icon svg { display: block; }
.route-icon:hover {
  background: color-mix(in oklab, var(--gm-blue) 10%, transparent);
  opacity: 1;
}
.route-icon:active { transform: scale(0.94); }
.route-icon.active {
  background: var(--gm-blue);
  color: #fff;
  opacity: 1;
  box-shadow: var(--gm-shadow-1);
}
.route-icon:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--gm-blue);
  opacity: 1;
}
.stop-row:hover .route-icon { opacity: 1; }

.footer {
  padding: 8px 20px;
  border-top: 1px solid var(--gm-border);
  font-size: 12px;
  color: var(--gm-text-secondary);
  text-align: center;
  background: var(--gm-surface);
}

@media (max-width: 720px) {
  .topbar { padding: 10px 14px; }
  .brand-title { font-size: 15px; }
  .view-trip {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 220px;
    height: calc(100dvh - 57px);
  }
  .trip-legend { border-right: none; border-top: 1px solid var(--gm-border); order: 2; }
  #map { order: 1; }
  .day-card { margin: 18px 14px; }
  .day-body { padding: 20px; }
}

/* ---- Stats view ---- */
.view-stats { display: block; overflow-y: auto; height: calc(100dvh - 57px); background: var(--gm-surface-2); }
.stats-wrap { max-width: 980px; margin: 0 auto; padding: 24px 20px 48px; }
.stats-title { font-size: clamp(22px, 3vw, 30px); font-weight: 500; margin: 4px 0 20px; color: var(--gm-text); }

.stat-tiles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.stat-tile {
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  border-radius: var(--gm-radius);
  padding: 14px 16px;
}
.stat-tile-label {
  font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--gm-text-secondary); font-weight: 500; margin-bottom: 6px;
}
.stat-tile-value { font-size: 18px; font-weight: 500; color: var(--gm-text); line-height: 1.25; }

.chart-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 16px;
}
.chart-card {
  margin: 0;
  background: var(--gm-surface);
  border: 1px solid var(--gm-border);
  border-radius: var(--gm-radius);
  padding: 16px 16px 12px;
  box-shadow: var(--gm-shadow-1);
  min-width: 0;
}
.chart-card figcaption { display: flex; flex-direction: column; gap: 2px; margin-bottom: 10px; }
.chart-title { font-size: 14px; font-weight: 500; color: var(--gm-text); }
.chart-sub { font-size: 12px; color: var(--gm-text-secondary); }
.chart-slot { width: 100%; }
.chart { width: 100%; height: auto; display: block; overflow: visible; }
.chart-grid-line { stroke: var(--gm-border); stroke-width: 1; }
.chart-axis { font-size: 10px; fill: var(--gm-text-secondary); }
.chart-row-label { font-size: 12px; fill: var(--gm-text); }
.chart-home-tag { fill: var(--gm-red); font-size: 10px; }
.chart-bar-value { font-size: 11px; fill: var(--gm-text-secondary); }
.chart-end-label { font-size: 11px; fill: var(--gm-text); font-weight: 500; }
.chart-legend { font-size: 12px; fill: var(--gm-text); }
.donut-center-num { font-size: 22px; font-weight: 500; fill: var(--gm-text); }
.donut-center-label { font-size: 11px; fill: var(--gm-text-secondary); }

@media (max-width: 720px) {
  .stats-wrap { padding: 18px 14px 40px; }
  .chart-grid { grid-template-columns: 1fr; }
}

/* ---- Modal ---- */
.modal {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(32,33,36,0.45);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal[hidden] { display: none; }
.modal-card {
  position: relative;
  background: var(--gm-surface);
  border-radius: 12px;
  padding: 28px;
  max-width: 480px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  box-shadow: var(--gm-shadow-3);
  color: var(--gm-text);
}
.modal-card h2 { margin: 0 0 4px; font-size: 20px; font-weight: 500; }
.modal-card .muted { color: var(--gm-text-secondary); font-size: 13px; margin: 0 0 18px; }
.modal-close {
  position: absolute; top: 10px; right: 12px;
  background: transparent; border: none; color: var(--gm-text-secondary);
  font-size: 26px; line-height: 1; cursor: pointer; padding: 4px 8px;
  border-radius: 50%;
}
.modal-close:hover { background: var(--gm-surface-alt); color: var(--gm-text); }

.modal label { display: block; margin: 14px 0; }
.modal label > span {
  display: block; font-size: 12px; letter-spacing: 0.08em;
  color: var(--gm-text-secondary); margin-bottom: 6px; font-weight: 500;
}
.modal input, .modal textarea {
  width: 100%;
  background: var(--gm-surface);
  color: var(--gm-text);
  border: 1px solid var(--gm-border-strong);
  border-radius: var(--gm-radius);
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.modal input:focus, .modal textarea:focus {
  border-color: var(--gm-blue);
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--gm-blue) 18%, transparent);
}
.modal textarea { resize: vertical; min-height: 80px; }

.modal-actions { display: flex; justify-content: flex-end; margin-top: 18px; }
.btn-primary {
  background: var(--gm-blue);
  color: #fff;
  border: none;
  border-radius: var(--gm-radius);
  padding: 10px 20px;
  font: inherit;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, box-shadow 0.15s ease;
  box-shadow: var(--gm-shadow-1);
}
.btn-primary:hover { background: var(--gm-blue-hover); box-shadow: var(--gm-shadow-2); }

.modal-result { margin-top: 12px; padding: 8px 12px; border-radius: var(--gm-radius); font-size: 13px; }
.modal-result.error { background: color-mix(in oklab, var(--gm-red) 12%, transparent); color: var(--gm-red); }
.modal-result.success { background: color-mix(in oklab, var(--gm-green) 12%, transparent); color: var(--gm-green); }
#captcha-slot { margin-top: 14px; min-height: 0; }

/* ---- Expandable charts (affordance + lightbox) ---- */
.chart-card { position: relative; cursor: pointer; transition: box-shadow 0.15s ease, border-color 0.15s ease; }
.chart-card:hover { box-shadow: var(--gm-shadow-2); border-color: var(--gm-border-strong); }
.chart-expand {
  position: absolute; top: 10px; right: 10px; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; padding: 0;
  background: var(--gm-surface); color: var(--gm-text-secondary);
  border: 1px solid var(--gm-border); border-radius: 6px;
  cursor: pointer; opacity: 0;
  transition: opacity 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.chart-card:hover .chart-expand, .chart-expand:focus-visible { opacity: 1; }
.chart-expand:hover { background: var(--gm-surface-alt); color: var(--gm-text); }
.chart-expand:focus-visible { outline: none; box-shadow: 0 0 0 2px var(--gm-blue); }
.chart-expand svg { display: block; }
@media (hover: none) { .chart-expand { opacity: 1; } }

.chart-modal-card {
  width: 1100px; max-width: 92vw; max-height: 92vh;
  display: flex; flex-direction: column; overflow: hidden;
  padding: 16px 18px 18px;
}
.chart-modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }
.chart-modal-head h2 { margin: 0; font-size: 18px; font-weight: 500; }
.chart-modal-head .modal-close { position: static; }
.chart-modal-body { flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; }
.chart-modal-body svg { width: 100%; height: 100%; display: block; }
.chart-modal-actions { display: flex; align-items: center; justify-content: flex-end; gap: 14px; margin-top: 14px; }
.btn-link {
  background: none; border: none; color: var(--gm-blue);
  font: inherit; font-size: 14px; font-weight: 500; cursor: pointer;
  padding: 6px 10px; border-radius: 6px;
}
.btn-link:hover { background: color-mix(in oklab, var(--gm-blue) 8%, transparent); }
@media (max-width: 720px) {
  .chart-modal-card { width: 96vw; max-width: 96vw; max-height: 94vh; padding: 12px 12px 14px; }
}

/* ---- Leaflet popup overrides ---- */
.leaflet-popup-content-wrapper {
  background: var(--gm-surface);
  color: var(--gm-text);
  border-radius: var(--gm-radius);
  box-shadow: var(--gm-shadow-2);
  border: 1px solid var(--gm-border);
}
.leaflet-popup-tip { background: var(--gm-surface); border: 1px solid var(--gm-border); }
.leaflet-popup-content { font-family: inherit; font-size: 13px; margin: 10px 14px; line-height: 1.45; }
.leaflet-popup-content b { color: var(--gm-text); font-weight: 500; }
.leaflet-control-zoom a {
  background: var(--gm-surface);
  color: var(--gm-text);
  border-color: var(--gm-border) !important;
}
.leaflet-container { font-family: inherit; }