/* ============================================================
   PBL × ODZEC Mileage Calculator — Material 3 inspired styles
   (emerald-tinted M3 colour scheme, Roboto Flex typography,
   pill buttons, expressive motion)
   ============================================================ */

/* ---------- M3 design tokens ---------- */
:root {
  /* Colour roles (light scheme, emerald primary) */
  --md-primary:                  #16a34a;    /* emerald-600 */
  --md-on-primary:               #ffffff;
  --md-primary-container:        #d1fae5;    /* emerald-100 */
  --md-on-primary-container:     #064e3b;    /* emerald-900 */

  --md-secondary:                #475569;    /* slate-600 */
  --md-on-secondary:             #ffffff;
  --md-secondary-container:      #e2e8f0;    /* slate-200 */
  --md-on-secondary-container:   #1e293b;    /* slate-800 */

  --md-tertiary:                 #f59e0b;    /* amber-500 */
  --md-on-tertiary:              #ffffff;
  --md-tertiary-container:       #fef3c7;    /* amber-100 */
  --md-on-tertiary-container:    #78350f;    /* amber-900 */

  --md-error:                    #dc2626;    /* red-600 */
  --md-on-error:                 #ffffff;
  --md-error-container:          #fee2e2;    /* red-100 */
  --md-on-error-container:       #7f1d1d;    /* red-900 */

  --md-surface:                  #fafaf9;    /* warm white */
  --md-on-surface:               #1c1b1f;
  --md-on-surface-variant:       #5f6368;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low:    #f5f5f4;
  --md-surface-container:        #f0f0ef;
  --md-surface-container-high:   #e7e7e6;
  --md-surface-container-highest:#dfdfde;

  --md-outline:                  #79747e;
  --md-outline-variant:          #c4c7c5;

  /* Elevation tokens (filtered shadow stack — M3 style) */
  --md-elev-1: 0 1px 2px 0 rgb(0 0 0 / 0.07), 0 1px 3px 1px rgb(0 0 0 / 0.05);
  --md-elev-2: 0 1px 2px 0 rgb(0 0 0 / 0.08), 0 2px 6px 2px rgb(0 0 0 / 0.07);
  --md-elev-3: 0 1px 3px 0 rgb(0 0 0 / 0.10), 0 4px 8px 3px rgb(0 0 0 / 0.08);
  --md-elev-4: 0 2px 3px 0 rgb(0 0 0 / 0.12), 0 6px 10px 4px rgb(0 0 0 / 0.10);

  /* Motion easing — M3 emphasized */
  --md-ease-standard:    cubic-bezier(0.2, 0, 0, 1);
  --md-ease-emphasized:  cubic-bezier(0.3, 0, 0, 1);
  --md-ease-decelerate:  cubic-bezier(0.05, 0.7, 0.1, 1);
  --md-ease-accelerate:  cubic-bezier(0.3, 0, 0.8, 0.15);

  /* Shape (corner radius) */
  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-xl: 28px;
  --md-shape-full: 9999px;
}

/* ---------- Base / typography ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  font-family: 'Roboto Flex', 'Inter', system-ui, -apple-system, sans-serif;
  font-feature-settings: 'cv11', 'ss01';
  background: var(--md-surface);
  color: var(--md-on-surface);
  margin: 0;
  font-size: 14px;
  line-height: 1.4;
}
h1, h2, h3, h4 { font-family: inherit; font-weight: 500; letter-spacing: -0.01em; }

[x-cloak] { display: none !important; }

/* ---------- M3 state layers (hover/focus/press overlays) ---------- */
.md-state {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.md-state::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  border-radius: inherit;
  pointer-events: none;
  transition: opacity 0.15s var(--md-ease-standard);
}
.md-state:hover::after  { opacity: 0.08; }
.md-state:focus-visible::after { opacity: 0.12; }
.md-state:active::after { opacity: 0.16; }

/* ---------- M3 buttons ---------- */
.md-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 24px;
  border-radius: var(--md-shape-full);
  border: 0;
  background: transparent;
  color: var(--md-primary);
  cursor: pointer;
  font: 500 14px/1 'Roboto Flex', system-ui;
  letter-spacing: 0.1px;
  transition: background-color 0.2s var(--md-ease-standard),
              box-shadow 0.2s var(--md-ease-standard),
              transform 0.15s var(--md-ease-standard);
  text-decoration: none;
  white-space: nowrap;
}
.md-btn:active { transform: scale(0.97); }
.md-btn[disabled] { opacity: 0.4; cursor: not-allowed; }

.md-btn--filled {
  background: var(--md-primary);
  color: var(--md-on-primary);
  box-shadow: var(--md-elev-1);
}
.md-btn--filled:hover { box-shadow: var(--md-elev-2); }

.md-btn--tonal {
  background: var(--md-secondary-container);
  color: var(--md-on-secondary-container);
}

.md-btn--outlined {
  border: 1px solid var(--md-outline-variant);
  background: transparent;
  color: var(--md-primary);
}
.md-btn--outlined:hover {
  background: color-mix(in srgb, var(--md-primary) 8%, transparent);
}

.md-btn--text {
  padding: 0 12px;
  background: transparent;
  color: var(--md-primary);
}

.md-btn--small {
  height: 32px;
  padding: 0 16px;
  font-size: 13px;
}

/* Icon-only button (round) */
.md-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--md-shape-full);
  border: 0;
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: background-color 0.18s var(--md-ease-standard);
}
.md-icon-btn:hover { background: color-mix(in srgb, var(--md-on-surface) 8%, transparent); }
.md-icon-btn:active { background: color-mix(in srgb, var(--md-on-surface) 14%, transparent); }
.md-icon-btn--danger:hover { background: color-mix(in srgb, var(--md-error) 12%, transparent); color: var(--md-error); }

/* ---------- M3 cards / surfaces ---------- */
.md-card {
  background: var(--md-surface-container-lowest);
  border-radius: var(--md-shape-md);
  box-shadow: var(--md-elev-1);
  border: 1px solid var(--md-outline-variant);
  transition: box-shadow 0.2s var(--md-ease-standard);
}

/* ---------- M3 chip (metric pill) ---------- */
.md-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--md-shape-sm);
  background: var(--md-surface-container);
  color: var(--md-on-surface-variant);
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
}
.md-chip strong {
  color: var(--md-on-surface);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.md-chip--primary {
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
}
.md-chip--primary strong { color: var(--md-on-primary-container); }

/* ---------- M3 select (Route dropdown) ---------- */
.md-select {
  appearance: none;
  -webkit-appearance: none;
  height: 36px;
  padding: 0 32px 0 12px;
  border-radius: var(--md-shape-sm);
  border: 1px solid var(--md-outline-variant);
  background-color: var(--md-surface-container-lowest);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='%235f6368'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 8px center;
  color: var(--md-on-surface);
  font: 500 13px/1 'Roboto Flex', system-ui;
  cursor: pointer;
  transition: border-color 0.15s var(--md-ease-standard);
}
.md-select:hover  { border-color: var(--md-on-surface-variant); }
.md-select:focus  { outline: none; border-color: var(--md-primary); }

/* ---------- M3 tabs ---------- */
.md-tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--md-outline-variant);
  overflow-x: auto;
  scrollbar-width: none;
}
.md-tabs::-webkit-scrollbar { display: none; }
.md-tab {
  position: relative;
  padding: 14px 20px;
  border: 0;
  background: transparent;
  color: var(--md-on-surface-variant);
  font: 500 14px/1 'Roboto Flex', system-ui;
  letter-spacing: 0.1px;
  cursor: pointer;
  white-space: nowrap;
  transition: color 0.2s var(--md-ease-standard);
}
.md-tab:hover { color: var(--md-on-surface); background: color-mix(in srgb, var(--md-on-surface) 6%, transparent); }
.md-tab--active { color: var(--md-primary); }
.md-tab--active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 0;
  height: 3px;
  background: var(--md-primary);
  border-radius: 3px 3px 0 0;
  animation: tab-slide 0.3s var(--md-ease-emphasized);
}
@keyframes tab-slide {
  from { transform: scaleX(0.3); opacity: 0; }
  to   { transform: scaleX(1);   opacity: 1; }
}

/* ---------- M3 dropzone upload ---------- */
.md-dropzone {
  position: relative;
  border: 2px dashed var(--md-outline-variant);
  border-radius: var(--md-shape-lg);
  padding: 32px 20px;
  background: var(--md-surface-container-low);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s var(--md-ease-standard),
              background-color 0.2s var(--md-ease-standard),
              transform 0.2s var(--md-ease-emphasized);
}
.md-dropzone:hover, .md-dropzone:focus-within {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
}
.md-dropzone.is-dragover {
  border-color: var(--md-primary);
  background: var(--md-primary-container);
  transform: scale(1.01);
}
.md-dropzone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.md-dropzone-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--md-shape-full);
  background: var(--md-primary-container);
  color: var(--md-on-primary-container);
  margin-bottom: 12px;
}
.md-dropzone-title {
  font-size: 16px;
  font-weight: 500;
  color: var(--md-on-surface);
  margin: 0 0 4px;
}
.md-dropzone-hint {
  font-size: 13px;
  color: var(--md-on-surface-variant);
  margin: 0;
}
.md-dropzone-files {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}
.md-dropzone-file {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-full);
  padding: 4px 12px;
  font-size: 12px;
  color: var(--md-on-surface);
}

/* ---------- HTMX indicator ---------- */
.htmx-indicator { opacity: 0; transition: opacity 0.2s; }
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator { opacity: 1; }

/* ============================================================
   Card list (trip cards)
   ============================================================ */
.cards-container { display: flex; flex-direction: column; gap: 6px; }

.trip-card {
  background: var(--md-surface-container-lowest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  cursor: pointer;
  transition: background-color 0.18s var(--md-ease-standard),
              border-color 0.18s var(--md-ease-standard),
              box-shadow 0.18s var(--md-ease-standard),
              transform 0.18s var(--md-ease-standard);
}
.trip-card:hover  { border-color: var(--md-on-surface-variant); box-shadow: var(--md-elev-1); }
.trip-card.htmx-swapping { opacity: 0.5; }

.trip-card-missing {
  background: var(--md-tertiary-container);
  border-color: color-mix(in srgb, var(--md-tertiary) 40%, transparent);
}
.trip-card-missing:hover { background: color-mix(in srgb, var(--md-tertiary-container) 80%, var(--md-tertiary) 20%); }

.trip-card.is-selected {
  border-color: var(--md-primary);
  box-shadow: inset 3px 0 0 0 var(--md-primary), var(--md-elev-2);
  background: var(--md-primary-container);
}

.trip-card-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  min-height: 44px;
}

.drag-handle {
  cursor: grab;
  color: var(--md-outline-variant);
  user-select: none;
  opacity: 0;
  transition: opacity 0.2s var(--md-ease-standard);
  font-size: 14px;
  padding: 0 2px;
}
.trip-card:hover .drag-handle { opacity: 1; }
.drag-handle:active { cursor: grabbing; }

/* ---------- Inputs ---------- */
.card-input {
  background: transparent;
  border: 0;
  padding: 4px 8px;
  font: inherit;
  font-size: 13px;
  border-radius: var(--md-shape-xs);
  color: var(--md-on-surface);
  transition: background-color 0.15s var(--md-ease-standard),
              box-shadow 0.15s var(--md-ease-standard);
}
.card-input:focus {
  outline: none;
  background: var(--md-surface-container-lowest);
  box-shadow: inset 0 0 0 2px var(--md-primary);
}
.card-input.card-pc {
  font-family: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  width: 96px;
  font-weight: 500;
}
.card-input.card-date {
  width: 128px;
  cursor: pointer;
  position: relative;
}
/* Hide native calendar icon — whole field is clickable instead. */
.card-input.card-date::-webkit-calendar-picker-indicator { opacity: 0; display: none; }
.card-input.card-date::-webkit-inner-spin-button,
.card-input.card-date::-webkit-clear-button { display: none; }

.card-arrow {
  color: var(--md-on-surface-variant);
  font-size: 14px;
  opacity: 0.7;
}

.card-miles {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 110px;
  justify-content: flex-end;
  font-size: 14px;
}
.miles-num {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: 15px;
}
.miles-unit { color: var(--md-on-surface-variant); font-size: 11px; margin-left: 2px; }
.miles-dash { color: var(--md-tertiary); }

.recalc-btn {
  color: var(--md-tertiary);
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--md-tertiary);
  border-radius: var(--md-shape-full);
  font: 500 11px/1 'Roboto Flex';
  cursor: pointer;
  transition: all 0.2s var(--md-ease-standard);
}
.recalc-btn:hover {
  background: var(--md-tertiary);
  color: var(--md-on-tertiary);
}

.delete-btn {
  opacity: 0;
  color: var(--md-outline-variant);
  font-size: 14px;
  padding: 4px 8px;
  background: transparent;
  border: 0;
  border-radius: var(--md-shape-full);
  cursor: pointer;
  transition: opacity 0.2s var(--md-ease-standard), color 0.18s var(--md-ease-standard), background-color 0.18s var(--md-ease-standard);
}
.trip-card:hover .delete-btn { opacity: 1; }
.delete-btn:hover {
  color: var(--md-error);
  background: var(--md-error-container);
}

/* ---------- Mileage spinner ---------- */
.miles-spinner {
  display: none;
  align-items: center;
  gap: 6px;
  color: var(--md-primary);
  font-weight: 500;
  font-size: 12px;
}
.miles-spinner.htmx-request,
.miles-spinner.force-show { display: inline-flex; }
.miles-spinner.htmx-request ~ .miles-value,
.miles-spinner.force-show ~ .miles-value { display: none; }
.miles-spinner svg { flex-shrink: 0; }

/* ---------- Card info row (warnings) ---------- */
.trip-card-info {
  padding: 0 12px 8px 36px;
  font-size: 12px;
  color: var(--md-on-tertiary-container);
}

/* ---------- Expanded alternatives panel ---------- */
.trip-card-detail {
  border-top: 1px solid var(--md-outline-variant);
  padding: 12px;
  background: color-mix(in srgb, var(--md-surface-container-lowest) 85%, transparent);
  cursor: default;
  animation: detail-in 0.25s var(--md-ease-emphasized);
}
@keyframes detail-in {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.trip-card.is-selected .trip-card-detail {
  background: color-mix(in srgb, var(--md-primary-container) 60%, white);
  border-top-color: color-mix(in srgb, var(--md-primary) 40%, var(--md-outline-variant));
}

/* ---------- Route alternative cards (inside panel) ---------- */
.route-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--md-shape-sm);
  border: 1.5px solid var(--md-outline-variant);
  background: var(--md-surface-container-lowest);
  cursor: pointer;
  transition: all 0.18s var(--md-ease-standard);
}
.route-card:hover {
  border-color: var(--md-primary);
  background: color-mix(in srgb, var(--md-primary-container) 50%, var(--md-surface-container-lowest));
  transform: translateY(-1px);
}
.route-card.border-emerald-500 { border-color: var(--md-primary); }
.route-card.bg-emerald-50\/70  { background: var(--md-primary-container); }

/* ---------- Footer bar ---------- */
.md-footer {
  position: fixed;
  inset-inline: 0;
  bottom: 0;
  background: var(--md-surface-container-lowest);
  border-top: 1px solid var(--md-outline-variant);
  padding: 8px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
  z-index: 40;
  flex-wrap: wrap;
  backdrop-filter: blur(8px);
}
.md-footer a { color: var(--md-primary); text-decoration: none; font-weight: 500; }
.md-footer a:hover { text-decoration: underline; }
.md-footer .divider { width: 1px; height: 14px; background: var(--md-outline-variant); }

/* ---------- Top app bar ---------- */
.md-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--md-surface-container-lowest);
  border-bottom: 1px solid var(--md-outline-variant);
  gap: 16px;
  flex-wrap: wrap;
}
.md-topbar h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--md-on-surface);
}
.md-topbar .subtitle {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--md-on-surface-variant);
}
.md-topbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.md-topbar-brand img { height: 32px; }
.md-topbar-brand .x { color: var(--md-outline); font-weight: 300; }
.md-topbar-brand .odzec {
  font-family: 'Roboto Flex';
  font-weight: 800;
  letter-spacing: 0.12em;
  font-size: 16px;
}

/* ---------- Map A/B markers ---------- */
.map-marker-ab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--md-shape-full);
  color: white;
  font: 700 14px/1 'Roboto Flex';
  border: 2px solid white;
  box-shadow: var(--md-elev-2);
}
.map-marker-ab--a { background: var(--md-primary); }
.map-marker-ab--b { background: var(--md-error); }

/* ---------- Mobile responsiveness ---------- */
@media (max-width: 768px) {
  .md-topbar { padding: 10px 14px; }
  .md-topbar h1 { font-size: 17px; }
  .md-topbar .subtitle { display: none; }
  .md-topbar-brand img { height: 24px; }
  .md-topbar-brand .odzec { font-size: 13px; }
  .trip-card-row { flex-wrap: wrap; padding: 8px 10px; gap: 6px; }
  .card-input.card-date { width: 110px; font-size: 12px; }
  .card-input.card-pc   { width: 76px; font-size: 12px; }
  .card-miles { min-width: auto; margin-left: auto; }
  .md-btn { padding: 0 16px; font-size: 13px; }
  .md-tab { padding: 12px 14px; font-size: 13px; }
  .md-dropzone { padding: 24px 16px; }
}

/* ========== Audit fixes — chevron / snackbar / tooltip / legend / sr-only ========== */

/* Screen-reader-only text */
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Row chevron — restores the expand affordance + gives keyboard a target */
.row-chevron {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--md-shape-full);
  border: 0;
  background: transparent;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  transition: background-color 0.18s var(--md-ease-standard), color 0.18s var(--md-ease-standard), transform 0.2s var(--md-ease-emphasized);
  flex-shrink: 0;
}
.row-chevron:hover { background: color-mix(in srgb, var(--md-primary) 12%, transparent); color: var(--md-primary); }
.row-chevron:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 1px;
  background: color-mix(in srgb, var(--md-primary) 12%, transparent);
  color: var(--md-primary);
}
.row-chevron[aria-expanded="true"] {
  background: color-mix(in srgb, var(--md-primary) 18%, transparent);
  color: var(--md-primary);
  transform: rotate(180deg);
}
.trip-card.is-selected .row-chevron {
  background: color-mix(in srgb, var(--md-primary) 18%, transparent);
  color: var(--md-primary);
  transform: rotate(180deg);
}

/* Help icon next to Route select */
.md-help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  border-radius: var(--md-shape-full);
  background: var(--md-surface-container-high);
  color: var(--md-on-surface-variant);
  font-size: 11px;
  font-weight: 700;
  cursor: help;
  position: relative;
  user-select: none;
  transition: background-color 0.15s var(--md-ease-standard);
}
.md-help:hover, .md-help:focus-visible { background: var(--md-primary-container); color: var(--md-on-primary-container); outline: none; }
.md-help::after {
  content: attr(data-tip);
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-2px);
  background: var(--md-on-surface);
  color: var(--md-surface);
  padding: 8px 12px;
  border-radius: var(--md-shape-sm);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.4;
  width: max-content;
  max-width: 320px;
  box-shadow: var(--md-elev-3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.18s var(--md-ease-standard), transform 0.18s var(--md-ease-standard);
  z-index: 60;
  text-align: left;
  white-space: normal;
}
.md-help:hover::after,
.md-help:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* Map legend caption */
.map-legend {
  position: absolute;
  left: 10px;
  bottom: 10px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--md-shape-sm);
  background: color-mix(in srgb, var(--md-surface-container-lowest) 88%, transparent);
  backdrop-filter: blur(6px);
  border: 1px solid var(--md-outline-variant);
  font-size: 11px;
  color: var(--md-on-surface-variant);
  z-index: 5;
  box-shadow: var(--md-elev-1);
  pointer-events: none;
}
.map-legend-swatch {
  width: 8px;
  height: 14px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--md-primary), color-mix(in srgb, var(--md-primary) 50%, transparent));
  flex-shrink: 0;
}

/* Stronger selection state on alternative cards (fixes Severity-2 selection visibility) */
.route-card.border-emerald-500 {
  border-color: var(--md-primary) !important;
  border-width: 2px !important;
  background: var(--md-primary-container) !important;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--md-primary) 25%, transparent);
}

/* Undo snackbar — M3 Snackbar style, anchored above the status footer */
.md-snackbar-stack {
  position: fixed;
  left: 50%;
  bottom: 52px;
  transform: translateX(-50%);
  z-index: 80;
  display: flex;
  flex-direction: column-reverse;
  gap: 8px;
  pointer-events: none;
  max-width: 90vw;
}
.md-snackbar {
  pointer-events: auto;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 10px 12px 10px 18px;
  background: var(--md-on-surface);
  color: var(--md-surface);
  border-radius: var(--md-shape-sm);
  box-shadow: var(--md-elev-3);
  font-size: 14px;
  min-width: 280px;
  animation: snackbar-in 0.25s var(--md-ease-emphasized);
}
.md-snackbar.is-leaving { animation: snackbar-out 0.2s var(--md-ease-accelerate) both; }
.md-snackbar button.undo {
  background: transparent;
  border: 0;
  color: color-mix(in srgb, var(--md-primary) 60%, white);
  font: 500 14px/1 inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 8px 12px;
  border-radius: var(--md-shape-full);
  cursor: pointer;
}
.md-snackbar button.undo:hover { background: rgb(255 255 255 / 0.08); }
.md-snackbar button.undo:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 1px;
}
@keyframes snackbar-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes snackbar-out {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(8px); }
}

/* Moved out of _table.html — keep responsive grid rules in the stylesheet */
@media (min-width: 768px) {
  .mc-card .md-card-body { grid-template-columns: 3fr 2fr; height: 560px; min-height: 0; }
  .mc-card .md-cards-pane { border-bottom: 0; border-right: 1px solid var(--md-outline-variant); }
  .mc-card .md-map-pane .mc-map { height: 100%; }
}

/* ========== Audit Round 2 — finishing the open findings ========== */

/* ---- Empty state below the upload dropzone ---- */
.md-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 56px 24px;
  background: var(--md-surface-container-lowest);
  border: 1px dashed var(--md-outline-variant);
  border-radius: var(--md-shape-lg);
  color: var(--md-on-surface-variant);
  margin-top: 16px;
}
.md-empty svg { color: var(--md-primary); opacity: 0.55; margin-bottom: 12px; }
.md-empty h2 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--md-on-surface);
}
.md-empty p {
  margin: 6px 0 0;
  max-width: 480px;
  font-size: 13px;
  color: var(--md-on-surface-variant);
}

/* ---- Mobile subtitle (was hidden, now shrunk instead) ---- */
@media (max-width: 768px) {
  .md-topbar { padding: 10px 14px; gap: 8px; }
  .md-topbar h1 { font-size: 16px; }
  .md-topbar .subtitle {
    display: block;
    font-size: 11px;
    line-height: 1.3;
    margin: 2px 0 0;
  }
}

/* ---- Drag handle: real <button>, always faintly visible, prominent on hover/focus ---- */
.drag-handle {
  cursor: grab;
  background: transparent;
  border: 0;
  padding: 0 6px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  border-radius: var(--md-shape-sm);
  color: var(--md-outline-variant);
  opacity: 0.55;                /* always visible */
  transition: opacity 0.15s var(--md-ease-standard), background-color 0.15s var(--md-ease-standard), color 0.15s var(--md-ease-standard);
  font-size: 14px;
  flex-shrink: 0;
}
.drag-handle:hover { opacity: 1; color: var(--md-on-surface-variant); background: color-mix(in srgb, var(--md-on-surface) 6%, transparent); }
.drag-handle:focus-visible {
  outline: 2px solid var(--md-primary);
  outline-offset: 1px;
  opacity: 1;
  color: var(--md-primary);
}
.drag-handle:active { cursor: grabbing; background: color-mix(in srgb, var(--md-on-surface) 10%, transparent); }
.trip-card:hover .drag-handle { opacity: 1; }

/* ---- Trip-card hover state — bumped to elevation-2 ---- */
.trip-card:hover {
  box-shadow: var(--md-elev-2);
  background: color-mix(in srgb, var(--md-primary-container) 18%, var(--md-surface-container-lowest));
}
.trip-card-missing:hover {
  background: color-mix(in srgb, var(--md-tertiary-container) 60%, var(--md-tertiary) 12%);
}

/* ---- Tabs always nowrap (R1 cosmetic) ---- */
.md-tabs { flex-wrap: nowrap; }

/* ---- Promoted component classes from inline _table.html styles ---- */
.md-card { overflow: hidden; }
.md-card-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--md-outline-variant);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.md-card-header-title { min-width: 0; }
.md-card-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.md-card-h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--md-on-surface);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.md-card-h3-meta { color: var(--md-on-surface-variant); font-weight: 400; margin-left: 4px; }
.md-card-h3-sub  { margin: 2px 0 0; font-size: 12px; color: var(--md-on-surface-variant); }
.md-chip-unit    { opacity: 0.7; font-weight: 500; }
.md-field {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--md-on-surface-variant);
}

.md-card-body {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 560px;
}
.md-cards-pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
.cards-scroll {
  overflow: auto;
  flex: 1;
  min-height: 0;
  padding: 10px 12px;
  background: var(--md-surface-container-low);
}
.md-cards-pane-footer {
  padding: 8px 12px;
  border-top: 1px solid var(--md-outline-variant);
  background: var(--md-surface-container-lowest);
}
.md-map-pane {
  background: var(--md-surface-container-low);
  position: relative;
}
.md-map-fill { width: 100%; height: 320px; }

/* Mobile: keep tab strip readable and bump Add-trip to a proper touch target */
@media (max-width: 768px) {
  .md-cards-pane-footer .md-btn { min-height: 40px; padding: 0 14px; }
}