/* Account for borders/padding in element sizing to avoid overflow */
*, *::before, *::after { box-sizing: border-box; }

:root {
  color-scheme: light;
  --font-family: 'Inter', sans-serif;
  --text-color: #1f2937;
  --muted-text-color: #0f172a;
  --bg-gradient: linear-gradient(180deg, #f8fafc 0%, #e0f2fe 100%);
  --container-bg: rgba(255, 255, 255, 0.9);
  --container-border: rgba(148, 163, 184, 0.35);
  --container-shadow: 0 20px 45px rgba(30, 64, 175, 0.14);
  --panel-bg: rgba(255, 255, 255, 0.9);
  --panel-shadow: 0 16px 34px rgba(148, 163, 184, 0.45);
  --header-color: #0f172a;
  --tab-border: rgba(59, 130, 246, 0.35);
  --tab-bg: rgba(191, 219, 254, 0.35);
  --tab-text: #1e293b;
  --tab-active-bg: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
  --tab-active-text: #f8fafc;
  --tab-active-shadow: 0 12px 24px rgba(37, 99, 235, 0.32);
  --divider-bg: linear-gradient(180deg, rgba(96,165,250,0.4), rgba(59,130,246,0.1));
  --divider-hover-bg: linear-gradient(180deg, rgba(59,130,246,0.65), rgba(37,99,235,0.25));
  --toggle-track: rgba(148, 163, 184, 0.45);
  --toggle-track-disabled: rgba(148, 163, 184, 0.3);
  --toggle-thumb: #f8fafc;
  --toggle-text: #0f172a;
  --toggle-text-muted: rgba(15, 23, 42, 0.45);
  --table-border: rgba(148, 163, 184, 0.35);
  --table-header-bg: rgba(226, 232, 240, 0.95);
  --table-text: #1e293b;
  --table-stripe-odd: rgba(241, 245, 249, 0.65);
  --table-stripe-even: rgba(255, 255, 255, 0.8);
  --table-hover: rgba(191, 219, 254, 0.55);
  --table-selected: rgba(96, 165, 250, 0.45);
  --table-selected-hover: rgba(59, 130, 246, 0.6);
  --totals-bg: rgba(191, 219, 254, 0.75);
  --totals-border: rgba(96, 165, 250, 0.5);
  --max-speed-color: #2563eb;
  --max-speed-hover: #1d4ed8;
  --details-bg: rgba(255, 255, 255, 0.95);
  --details-border: rgba(148, 163, 184, 0.35);
  --details-shadow: 0 25px 55px rgba(148, 163, 184, 0.35);
  --details-text: #0f172a;
  --drag-handle: #64748b;
  --map-bg: linear-gradient(180deg, rgba(191, 219, 254, 0.35), rgba(224, 242, 254, 0.1));
  --map-overlay: radial-gradient(140% 100% at 80% 10%, rgba(191, 219, 254, 0.45) 0%, rgba(148, 197, 253, 0.15) 45%, rgba(255, 255, 255, 0.75) 100%);
  --leaflet-bg: rgba(255, 255, 255, 0.9);
  --leaflet-border: rgba(148, 163, 184, 0.35);
  --leaflet-text: #1e293b;
  --button-bg: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 45%, #06b6d4 100%);
  --button-text: #f8fafc;
  --button-shadow: 0 12px 24px rgba(37, 99, 235, 0.28);
  --button-hover-shadow: 0 16px 34px rgba(37, 99, 235, 0.35);
  --loading-backdrop: rgba(148, 163, 184, 0.35);
  --loading-card-bg: rgba(255, 255, 255, 0.95);
  --loading-text: #1f2937;
  --wind-label-bg: rgba(59, 130, 246, 0.85);
  --wind-label-text: #f8fafc;
  --wind-arrow-color: #111827;
  --accent-color: #ef4444;
  --map-tile-filter: none;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --text-color: #e2e8f0;
    --muted-text-color: #cbd5e1;
    --bg-gradient: linear-gradient(180deg, #0b1220 0%, #0f172a 40%, #0b1324 100%);
    --container-bg: rgba(15, 23, 42, 0.86);
    --container-border: rgba(148, 163, 184, 0.2);
    --container-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
    --panel-bg: rgba(17, 24, 39, 0.9);
    --panel-shadow: 0 18px 38px rgba(0, 0, 0, 0.6);
    --header-color: #e2e8f0;
    --tab-border: rgba(59, 130, 246, 0.45);
    --tab-bg: rgba(37, 99, 235, 0.25);
    --tab-text: #e2e8f0;
    --tab-active-bg: linear-gradient(135deg, #2563eb 0%, #0ea5e9 100%);
    --tab-active-text: #e2e8f0;
    --tab-active-shadow: 0 12px 24px rgba(14, 165, 233, 0.3);
    --divider-bg: linear-gradient(180deg, rgba(59,130,246,0.35), rgba(14,165,233,0.12));
    --divider-hover-bg: linear-gradient(180deg, rgba(59,130,246,0.65), rgba(14,165,233,0.35));
    --toggle-track: rgba(71, 85, 105, 0.7);
    --toggle-track-disabled: rgba(71, 85, 105, 0.4);
    --toggle-thumb: #e2e8f0;
    --toggle-text: #e2e8f0;
    --toggle-text-muted: rgba(226, 232, 240, 0.55);
    --table-border: rgba(148, 163, 184, 0.35);
    --table-header-bg: rgba(30, 41, 59, 0.9);
    --table-text: #e2e8f0;
    --table-stripe-odd: rgba(30, 41, 59, 0.55);
    --table-stripe-even: rgba(15, 23, 42, 0.7);
    --table-hover: rgba(59, 130, 246, 0.35);
    --table-selected: rgba(59, 130, 246, 0.5);
    --table-selected-hover: rgba(59, 130, 246, 0.65);
    --totals-bg: rgba(37, 99, 235, 0.28);
    --totals-border: rgba(59, 130, 246, 0.45);
    --max-speed-color: #93c5fd;
    --max-speed-hover: #bfdbfe;
    --details-bg: rgba(17, 24, 39, 0.95);
    --details-border: rgba(148, 163, 184, 0.25);
    --details-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
    --details-text: #e2e8f0;
    --drag-handle: #94a3b8;
    --map-bg: linear-gradient(180deg, rgba(59, 130, 246, 0.18), rgba(14, 165, 233, 0.08));
    --map-overlay: radial-gradient(140% 100% at 80% 10%, rgba(37, 99, 235, 0.35) 0%, rgba(6, 182, 212, 0.22) 45%, rgba(15, 23, 42, 0.8) 100%);
    --leaflet-bg: rgba(17, 24, 39, 0.9);
    --leaflet-border: rgba(148, 163, 184, 0.3);
    --leaflet-text: #e2e8f0;
    --button-bg: linear-gradient(135deg, #2563eb 0%, #0ea5e9 60%, #06b6d4 100%);
    --button-text: #e2e8f0;
    --button-shadow: 0 12px 24px rgba(15, 23, 42, 0.55);
    --button-hover-shadow: 0 16px 34px rgba(14, 165, 233, 0.35);
    --loading-backdrop: rgba(15, 23, 42, 0.6);
    --loading-card-bg: rgba(17, 24, 39, 0.95);
    --loading-text: #e2e8f0;
    --wind-label-bg: rgba(59, 130, 246, 0.9);
    --wind-label-text: #e2e8f0;
    --wind-arrow-color: #e5e7eb;
    --accent-color: #ef4444;
    --map-tile-filter: brightness(0.80) contrast(1.2);
  }
}

/* adopt Signal K theme variables with fallbacks */
body, html {
  height: 100%;
  margin: 0;
  min-width: 320px;
  background: var(--bg-gradient);
  color: var(--text-color);
  font-family: var(--font-family, 'Inter', sans-serif);
}
html, body { height: 100%; }

.container {
  width: 95%;
  margin: 0 auto;
  min-height: 95vh;        /* allow layout to scroll when content exceeds viewport */
  display: grid;
  grid-template-rows: minmax(230px, var(--top-height, 25vh)) 6px minmax(400px, 1fr); /* header/table, divider, map/panel */
  gap: 12px;
  background: var(--container-bg);
  border: 1px solid var(--container-border);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  padding: 16px;
  box-shadow: var(--container-shadow);
}

.mobile-tab-bar {
  display: none;
  gap: 8px;
  margin-bottom: 8px;
}

.mobile-tab {
  flex: 1 1 0;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--tab-border);
  background: var(--tab-bg);
  color: var(--tab-text);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.mobile-tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.45);
}

.mobile-tab.is-active {
  background: var(--tab-active-bg);
  color: var(--tab-active-text);
  border-color: transparent;
  box-shadow: var(--tab-active-shadow);
}
.top-section {
  display: flex;
  flex-direction: column;
  min-height: 0; /* allow inner scroll */
}
.h-divider {
  grid-row: 2;
  align-self: stretch;
  background: var(--divider-bg);
  border-radius: 4px;
  cursor: row-resize;
  touch-action: none; /* allow custom touch resize */
  transition: background 0.25s ease;
}
.h-divider:hover { background: var(--divider-hover-bg); }

.header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--header-color);
}
.header-actions { display: flex; gap: 8px; align-items: center; }
.toggle-switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  user-select: none;
  margin-right: 18px;
}
.toggle-switch input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.toggle-slider {
  position: relative;
  width: 46px;
  height: 24px;
  border-radius: 999px;
  background: var(--toggle-track);
  transition: background 0.2s ease;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  top: 3px;
  left: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--toggle-thumb);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.25);
  transition: transform 0.2s ease;
}
.toggle-switch.is-active .toggle-slider {
  background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
}
.toggle-switch.is-active .toggle-slider::before {
  transform: translateX(20px);
}
.toggle-switch.is-disabled {
  cursor: not-allowed;
  opacity: 0.55;
}
.toggle-switch.is-disabled .toggle-slider {
  background: var(--toggle-track-disabled);
}
.toggle-switch.is-disabled .toggle-slider::before {
  box-shadow: none;
}
.toggle-switch.is-disabled .toggle-text {
  color: var(--toggle-text-muted);
}
.toggle-switch:focus-within .toggle-slider {
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.35);
}
.toggle-text {
  font-size: 0.92rem;
  color: var(--toggle-text);
}
.table-wrapper {
  flex: 1 1 auto;
  min-height: 150px;       /* keep voyage table usable on short viewports */
  overflow-y: scroll;      /* always show scroll bar */
  overflow-x: hidden;
  border: 1px solid var(--table-border);
  border-radius: 12px;
  background: var(--panel-bg);
  box-shadow: var(--panel-shadow);
}
.map-row {
  display: flex;
  gap: 12px;
  align-items: stretch;
  min-height: 0; /* allow map to size correctly */
  height: 100%;
  overflow: hidden; /* prevent tiny page scroll due to borders */
  position: relative; /* anchor floating details panel */
}

#map {
  flex: 1 1 auto; /* fill remaining space next to details panel */
  height: 100%;
  min-height: 200px;
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--panel-shadow);
  background: var(--map-bg);
}
#map::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--map-overlay);
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.55;
}
/* style the regeneration button to match SK buttons */
.header-actions button, button#regenBtn {
  background: var(--button-bg);
  color: var(--button-text);
  border: none;
  padding: 8px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: var(--button-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.header-actions button:hover, button#regenBtn:hover {
  transform: translateY(-1px);
  box-shadow: var(--button-hover-shadow);
}
/* give the table Signal K‑style borders and zebra stripes */
table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
  color: var(--table-text);
}
th, td {
  padding: 8px;
  border-bottom: 1px solid var(--table-border);
  font-size: 0.90rem;
}
th {
  background: var(--table-header-bg);
  color: var(--table-text);
  position: sticky;  /* sticky header for scroll */
  top: 0;
  z-index: 1;
}
tbody tr:nth-child(odd) {
  background-color: var(--table-stripe-odd);
}
tbody tr:nth-child(even) {
  background-color: var(--table-stripe-even);
}
tbody tr:hover {
  background-color: var(--table-hover);
}
tbody tr.selected-row,
tbody tr.selected-row td {
  background-color: var(--table-selected); /* highlight selected voyage even on zebra rows */
}
tbody tr.selected-row:hover,
tbody tr.selected-row:hover td {
  background-color: var(--table-selected-hover); /* subtle hover feedback while keeping highlight */
}
.totals-row,
.totals-row td {
  background-color: var(--totals-bg);
  color: var(--header-color);
  font-weight: 600;
}
.totals-row td {
  border-top: 2px solid var(--totals-border);
  border-bottom: 0;
}
.totals-label {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.max-speed-cell {
  color: var(--max-speed-color);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline dotted;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.max-speed-cell:hover,
.max-speed-cell:focus-visible {
  color: var(--max-speed-hover);
  outline: none;
}
.details-panel {
  position: absolute;
  top: 12px;
  right: 12px;
  /* shrink-wrap to content width, but cap so it never gets too wide */
  display: inline-block;
  width: max-content;
  max-width: 420px;
  min-width: 0;
  max-height: calc(100% - 24px);
  padding: 10px;
  border: 1px solid var(--details-border);
  border-radius: 12px;
  background: var(--details-bg);
  overflow: auto; /* allow horizontal scroll for no-wrap fields */
  box-shadow: var(--details-shadow);
  z-index: 1200;
}
.details-panel .floating-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 6px 0;
  cursor: move; /* drag handle */
}
.details-panel .floating-title { font-weight: 600; }
.details-panel .drag-handle { cursor: move; opacity: 0.6; user-select: none; color: var(--drag-handle); }
.details-panel .close-details {
  border: none; background: rgba(148, 163, 184, 0.18); cursor: pointer; font-size: 16px; line-height: 1;
  color: var(--details-text);
  border-radius: 999px;
}

/* Form-like grid for point details */
.point-details {
  display: grid;
  grid-template-columns: max-content 1fr;
  column-gap: 12px;
  row-gap: 6px;
  align-items: center;
}
.point-details .row {
  display: contents; /* place dt/dd directly in grid */
}
.point-details dt {
  font-weight: 600;
  color: var(--max-speed-hover);
  white-space: nowrap;  /* avoid label wrap */
}
.point-details dd {
  margin: 0;
  white-space: nowrap;         /* avoid value wrap */
  overflow: hidden;            /* clip overflow */
  text-overflow: ellipsis;     /* show ellipsis when clipped */
  color: var(--details-text);
}

/* Disable text selection during resize for smoother UX */
body.resizing {
  user-select: none;
}

/* Fixed width for index column to avoid shifting */
th.idx-col { width: 48px; }
td.idx-cell { width: 48px; white-space: nowrap; }
.expander-btn {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 0.9em;
  margin-right: 6px;
  color: var(--drag-handle);
}
.exp-cell { text-align: center; white-space: nowrap; }
td.exp-cell { width: 32px; }
.day-row {
  background-color: var(--table-stripe-odd);
}
.day-row.hidden { display: none; }
.idx-cell { white-space: nowrap; }

/* Small square marker for selected point */
.point-square-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.point-square-fill {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 1px;
}
.wind-speed-label {
  padding: 2px 4px;
  font-size: 11px;
  background: var(--wind-label-bg);
  color: var(--wind-label-text);
  border-radius: 3px;
  white-space: nowrap;
}
.wind-arrow { position: relative; transform-origin: 50% 50%; pointer-events: none; }

.leaflet-control-container .leaflet-control {
  border: 1px solid var(--leaflet-border);
  background: var(--leaflet-bg);
  color: var(--leaflet-text);
  backdrop-filter: blur(8px);
}
.leaflet-control-container .leaflet-control a {
  color: inherit;
  background: transparent;
}
.leaflet-control-zoom a {
  box-shadow: none;
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}
.leaflet-control-zoom a:last-child {
  border-bottom: none;
}
.leaflet-control-attribution {
  font-size: 11px;
  letter-spacing: 0.03em;
}
.leaflet-container {
  background: transparent !important;
  font-family: var(--font-family, 'Inter', sans-serif);
  color: var(--leaflet-text);
}

.leaflet-tile-pane img.leaflet-tile {
  filter: var(--map-tile-filter, none);
  transition: filter 0.2s ease;
}

body.is-loading,
body.is-loading * {
  cursor: progress !important;
}

#loadingOverlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--loading-backdrop);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s ease-in-out;
  z-index: 4000;
}

#loadingOverlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.loading-content {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 28px;
  border-radius: 12px;
  background: var(--loading-card-bg);
  color: var(--loading-text);
  font-weight: 600;
  box-shadow: var(--panel-shadow);
}

.loading-indicator {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 4px solid rgba(59, 130, 246, 0.2);
  border-top-color: rgba(37, 99, 235, 1);
  animation: loading-spin 0.8s linear infinite;
}

.loading-message {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

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

.container.mobile-layout {
  display: flex;
  flex-direction: column;
  width: 100%;
  margin: 0;
  min-height: 100vh;
  grid-template-rows: none;
  gap: 16px;
}

.container.mobile-layout #toggleMaxBtn {
  display: none;
}

.container.mobile-layout .mobile-tab-bar {
  display: flex;
}

.container.mobile-layout #hDivider {
  display: none;
}

.container.mobile-layout #tablePanel,
.container.mobile-layout #mapPanel {
  display: none;
}

.container.mobile-layout[data-mobile-view="table"] #tablePanel {
  display: flex;
}

.container.mobile-layout[data-mobile-view="map"] #mapPanel {
  display: flex;
}

.container.mobile-layout #tablePanel {
  flex: 1 1 auto;
}

.container.mobile-layout #mapPanel {
  flex: 1 1 auto;
  flex-direction: column;
  gap: 12px;
  overflow: visible;
}

.container.mobile-layout #map {
  min-height: 320px;
  height: 60vh;
}

.container.mobile-layout th.end-col,
.container.mobile-layout td.end-col,
.container.mobile-layout th.avg-speed-col,
.container.mobile-layout td.avg-speed-col,
.container.mobile-layout th.avg-wind-col,
.container.mobile-layout td.avg-wind-col {
  display: none;
}

.container.mobile-layout .totals-row {
  display: none;
}

.container.mobile-layout .max-speed-cell .unit-kn,
.container.mobile-layout .max-wind-cell .unit-kn {
  display: none;
}

.container.mobile-layout .details-panel {
  position: static;
  width: 100%;
  max-width: none;
  box-shadow: var(--panel-shadow);
}

.container.mobile-layout .top-section {
  min-height: 0;
}

.container.mobile-layout .table-wrapper {
  max-height: none;
}