:root {
  /* The Real Borneo - Brand Design Tokens */
  --trb-navy: #0D1E29;
  --trb-orange: #C4661A;
  --trb-orange-hover: #B25A15;
  --trb-cream: #E8DFC6;
  --trb-parchment: #D7BE92;
  --trb-forest: #36472C;
  --trb-leaf: #5B663D;
  --trb-sage: #79825E;
  --trb-white: #FFFFFF;

  /* Material 3 Light Theme Palette */
  --md-sys-color-background: #FAF8F5;
  --md-sys-color-on-background: #0D1E29;
  --md-sys-color-surface: #FFFFFF;
  --md-sys-color-on-surface: #0D1E29;
  --md-sys-color-surface-container: #F4EFE6;
  --md-sys-color-surface-container-high: #EBE4D8;
  --md-sys-color-surface-variant: #E8DFC6;
  --md-sys-color-on-surface-variant: #49454F;
  --md-sys-color-primary: #C4661A;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #FFDCC1;
  --md-sys-color-on-primary-container: #3E1C00;
  --md-sys-color-secondary: #36472C;
  --md-sys-color-on-secondary: #FFFFFF;
  --md-sys-color-outline: #C9C4BE;
  --md-sys-color-outline-variant: #E4DCD3;

  /* Elevation Shadows */
  --md-elevation-1: 0 1px 3px 1px rgba(13, 30, 41, 0.08), 0 1px 2px 0 rgba(13, 30, 41, 0.12);
  --md-elevation-2: 0 2px 6px 2px rgba(13, 30, 41, 0.08), 0 1px 2px 0 rgba(13, 30, 41, 0.12);
  --md-elevation-3: 0 4px 8px 3px rgba(13, 30, 41, 0.10), 0 1px 3px 0 rgba(13, 30, 41, 0.14);

  /* Fonts */
  --font-display: 'Oswald', sans-serif;
  --font-body: 'PT Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --border-radius-m3: 16px;
  --border-radius-pill: 9999px;
}

[data-theme="dark"] {
  /* Material 3 Dark Theme Palette */
  --md-sys-color-background: #0A161E;
  --md-sys-color-on-background: #EDE6DA;
  --md-sys-color-surface: #0D1E29;
  --md-sys-color-on-surface: #EDE6DA;
  --md-sys-color-surface-container: #152B3A;
  --md-sys-color-surface-container-high: #1E374A;
  --md-sys-color-surface-variant: #253F54;
  --md-sys-color-on-surface-variant: #C2C9D0;
  --md-sys-color-primary: #C4661A;
  --md-sys-color-on-primary: #FFFFFF;
  --md-sys-color-primary-container: #5A2906;
  --md-sys-color-on-primary-container: #FFDCC1;
  --md-sys-color-secondary: #79825E;
  --md-sys-color-on-secondary: #0D1E29;
  --md-sys-color-outline: #415A6E;
  --md-sys-color-outline-variant: #253F54;

  --md-elevation-1: 0 1px 3px 1px rgba(0, 0, 0, 0.35);
  --md-elevation-2: 0 2px 6px 2px rgba(0, 0, 0, 0.45);
  --md-elevation-3: 0 4px 8px 3px rgba(0, 0, 0, 0.55);
}

/* Base Reset & Zero-Horizontal-Scroll Rules */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  max-width: 100vw;
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: var(--font-body);
  background-color: var(--md-sys-color-background);
  color: var(--md-sys-color-on-background);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-top: max(4px, env(safe-area-inset-top));
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

/* Compact Headers & Titles - Full Viewport Fit with 2+ Line Wrapping When Needed */
h1, h2, h3, .brand-title, .one-line-title {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  font-weight: 700;
  color: var(--md-sys-color-on-background);
  line-height: 1.2;
  margin: 0;
  word-break: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}

h1 {
  font-size: clamp(14px, 2.2vw, 18px);
}

h2 {
  font-size: clamp(13px, 1.8vw, 16px);
}

h3 {
  font-size: clamp(12px, 1.5vw, 14px);
}

/* Material 3 Card */
.m3-card {
  background-color: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: var(--border-radius-m3);
  box-shadow: var(--md-elevation-1);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.m3-card:hover {
  box-shadow: var(--md-elevation-2);
}

/* Strict 1-Line Buttons */
.m3-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 16px;
  border-radius: var(--border-radius-pill);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: none;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
  flex-shrink: 0;
}

.m3-btn-primary {
  background-color: var(--trb-orange);
  color: #FFFFFF;
}

.m3-btn-primary:hover {
  background-color: var(--trb-orange-hover);
  transform: translateY(-1px);
}

.m3-btn-secondary {
  background-color: var(--md-sys-color-surface-container);
  color: var(--md-sys-color-on-surface);
  border: 1px solid var(--md-sys-color-outline);
}

.m3-btn-secondary:hover {
  background-color: var(--md-sys-color-surface-container-high);
}

.m3-btn-tonal {
  background-color: var(--md-sys-color-primary-container);
  color: var(--md-sys-color-on-primary-container);
}

/* Form Inputs */
.m3-input {
  width: 100%;
  min-height: 42px;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid var(--md-sys-color-outline);
  background-color: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-family: var(--font-body);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.m3-input:focus {
  border-color: var(--trb-orange);
  box-shadow: 0 0 0 2px rgba(196, 102, 26, 0.2);
}

/* Time Slot Buttons (Strict 1 line) */
.time-slot-btn {
  min-height: 42px;
  width: 100%;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--md-sys-color-outline-variant);
  background-color: var(--md-sys-color-surface);
  color: var(--trb-orange);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.time-slot-btn:hover {
  background-color: var(--trb-orange);
  color: #FFFFFF;
  border-color: var(--trb-orange);
}

.time-slot-btn.selected {
  background-color: var(--trb-navy);
  color: #FFFFFF;
  border-color: var(--trb-navy);
}

[data-theme="dark"] .time-slot-btn.selected {
  background-color: var(--trb-orange);
  color: #FFFFFF;
  border-color: var(--trb-orange);
}

/* Circular Action Icon Buttons (Theme & Logout) */
.theme-toggle-btn, .icon-action-btn {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  color: var(--md-sys-color-on-surface);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.15s ease;
  flex-shrink: 0;
  text-decoration: none;
}

.theme-toggle-btn:hover, .icon-action-btn:hover {
  background: var(--md-sys-color-surface-container-high);
  color: var(--trb-orange);
  border-color: var(--trb-orange);
}

/* Clean Android Settings Style List Rows - Zero Horizontal Scroll */
.settings-list {
  display: flex;
  flex-direction: column;
  background: var(--md-sys-color-surface);
  border-radius: var(--border-radius-m3);
  border: 1px solid var(--md-sys-color-outline-variant);
  max-width: 100%;
}

.settings-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: background-color 0.15s ease;
  min-height: 48px;
  gap: 10px;
  max-width: 100%;
}

.settings-item:last-child {
  border-bottom: none;
}

.settings-item:hover {
  background-color: var(--md-sys-color-surface-container);
}

.settings-item-leading {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.settings-icon-box {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--md-sys-color-surface-container-high);
  color: var(--trb-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
}

.settings-text-block {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
  flex-wrap: wrap;
}

.settings-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  line-height: 1.25;
  word-break: break-word;
  overflow-wrap: break-word;
}

.settings-subtitle {
  font-size: 12px;
  color: var(--md-sys-color-on-surface-variant);
  line-height: 1.2;
  background: var(--md-sys-color-surface-container);
  padding: 2px 8px;
  border-radius: 6px;
  word-break: break-word;
}

.settings-item-trailing {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  color: var(--md-sys-color-on-surface-variant);
  font-size: 13px;
}

.settings-chevron {
  font-size: 16px;
  opacity: 0.5;
  flex-shrink: 0;
}

/* Nav Tabs - Horizontal fit */
.app-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
  padding: 0 12px;
  background: var(--md-sys-color-surface);
  overflow-x: auto;
  max-width: 100vw;
}

.app-tab-btn {
  padding: 10px 14px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  white-space: nowrap;
}

.app-tab-btn.active {
  color: var(--trb-orange);
  border-bottom-color: var(--trb-orange);
}

/* Layout Variations - Zero Horizontal Scroll */
.layout-split-container {
  display: grid;
  grid-template-columns: 320px 1fr 260px;
  min-height: 520px;
  max-width: 100%;
}

@media (max-width: 960px) {
  .layout-split-container {
    grid-template-columns: 1fr;
  }
}

.layout-compact-container {
  max-width: 520px;
  width: 100%;
  margin: 0 auto;
}

.layout-safari-container {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
}

/* Mobile & Viewport Tight Responsive Rules */
@media (max-width: 640px) {
  .settings-item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px 12px;
  }
  .settings-item-leading {
    width: 100%;
  }
  .settings-item-trailing {
    width: 100%;
    justify-content: flex-end;
  }
  .settings-text-block {
    flex-direction: column;
    align-items: flex-start;
    gap: 3px;
  }
}

/* Custom Dialogs & Modal System */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(13, 30, 41, 0.7);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 16px;
  animation: modalFadeIn 0.15s ease-out;
}

.modal-overlay.active {
  display: flex;
}

@keyframes modalFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-dialog {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 16px;
  box-shadow: var(--md-elevation-3);
  padding: 22px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideUp 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  box-sizing: border-box;
}

/* Custom Selection Lists (Checkboxes & Radios) */
.custom-select-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.custom-select-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1.5px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface-container);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  gap: 12px;
  position: relative;
}

.custom-select-item:hover {
  background: var(--md-sys-color-surface-container-high);
  border-color: var(--md-sys-color-outline);
}

.custom-select-item.selected {
  border-color: var(--trb-orange);
  background: var(--md-sys-color-surface);
  box-shadow: 0 0 0 1px var(--trb-orange);
}

.custom-select-item input[type="checkbox"],
.custom-select-item input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
  width: 0;
  height: 0;
}

/* Custom Checkbox Indicator */
.custom-checkbox-box {
  width: 20px;
  height: 20px;
  border-radius: 6px;
  border: 2px solid var(--md-sys-color-outline);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-surface);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.custom-select-item.selected .custom-checkbox-box {
  background: var(--trb-orange);
  border-color: var(--trb-orange);
}

.custom-checkbox-box svg {
  display: none;
  stroke: #FFFFFF;
}

.custom-select-item.selected .custom-checkbox-box svg {
  display: block;
}

/* Custom Radio Indicator */
.custom-radio-circle {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--md-sys-color-outline);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-sys-color-surface);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.custom-select-item.selected .custom-radio-circle {
  border-color: var(--trb-orange);
}

.custom-radio-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--trb-orange);
  transform: scale(0);
  transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1);
}

.custom-select-item.selected .custom-radio-dot {
  transform: scale(1);
}

/* Custom Toast Notification Banner */
.custom-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--trb-navy);
  color: #FFFFFF;
  padding: 12px 18px;
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  z-index: 2000;
  animation: toastSlideIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid var(--trb-orange);
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Custom Timeslots Builder (Visual, Text & Pattern Hybrid) */
.timeslots-builder {
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.timeslots-quick-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.timeslot-quick-pill {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline);
  color: var(--md-sys-color-on-surface);
  border-radius: 20px;
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.timeslot-quick-pill:hover {
  background: var(--trb-orange);
  color: #FFFFFF;
  border-color: var(--trb-orange);
}

.timeslots-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 38px;
  padding: 8px;
  background: var(--md-sys-color-surface);
  border-radius: 8px;
  border: 1px dashed var(--md-sys-color-outline-variant);
  max-height: 140px;
  overflow-y: auto;
}

.timeslot-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--trb-navy);
  color: #FFFFFF;
  border-radius: 16px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--trb-orange);
  animation: modalFadeIn 0.15s ease;
}

[data-theme="dark"] .timeslot-chip {
  background: var(--md-sys-color-surface-container-high);
  color: var(--trb-orange);
}

.timeslot-chip-remove {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  font-size: 12px;
  line-height: 1;
  opacity: 0.7;
}

.timeslot-chip-remove:hover {
  opacity: 1;
  color: #FF5252;
}

.day-selector-pills {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.day-pill {
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 700;
  border-radius: 6px;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
}

.day-pill.active {
  background: var(--trb-orange);
  color: #FFFFFF;
  border-color: var(--trb-orange);
}

/* Header Live Time Confirmation & Dual Timezone */
.admin-live-time-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 20px;
  padding: 3px 8px;
  font-size: 11px;
  color: var(--md-sys-color-on-surface);
  white-space: nowrap;
}

.admin-live-time-primary {
  font-weight: 700;
  color: var(--trb-orange);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.admin-live-time-tzselect {
  background: transparent;
  border: none;
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface-variant);
  cursor: pointer;
  padding: 0 2px;
  outline: none;
  max-width: 90px;
}

.admin-live-time-secondary {
  font-weight: 600;
  color: var(--trb-sage);
  border-left: 1px solid var(--md-sys-color-outline-variant);
  padding-left: 6px;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

@media (max-width: 720px) {
  .admin-live-time-secondary {
    display: none;
  }
}

@media (max-width: 480px) {
  .admin-live-time-bar {
    display: none;
  }
}

/* Interactive Visual Timeslot Timeline */
.timeslot-timeline-wrapper {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 4px;
}

.timeslot-timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--md-sys-color-on-surface-variant);
}

.timeslot-timeline-track {
  display: grid;
  grid-template-columns: repeat(28, 1fr);
  gap: 2px;
  background: var(--md-sys-color-surface-container);
  border-radius: 6px;
  padding: 4px;
  overflow-x: auto;
  user-select: none;
  box-sizing: border-box;
}

.timeline-cell {
  height: 30px;
  border-radius: 4px;
  border: 1px solid var(--md-sys-color-outline-variant);
  background: var(--md-sys-color-surface);
  color: var(--md-sys-color-on-surface);
  font-size: 9px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.12s ease;
  min-width: 22px;
  text-align: center;
  line-height: 1.1;
  padding: 1px 0;
}

.timeline-cell:hover {
  background: rgba(196, 102, 26, 0.2);
  border-color: var(--trb-orange);
  color: var(--trb-orange);
  transform: translateY(-1px);
}

.timeline-cell.active {
  background: var(--trb-orange);
  color: #FFFFFF;
  border-color: var(--trb-orange);
  font-weight: 700;
  box-shadow: 0 1px 4px rgba(196, 102, 26, 0.3);
}

.timeline-cell.hour-marker {
  border-left: 2px solid var(--trb-navy);
}

[data-theme="dark"] .timeline-cell.hour-marker {
  border-left: 2px solid var(--trb-orange);
}

.timeline-legend {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--md-sys-color-on-surface-variant);
  padding: 0 4px;
}

/* Side-by-side Time & Dual Timezone Comparison Card */
.admin-side-by-side-clocks {
  display: flex;
  align-items: center;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 24px;
  padding: 2px 4px 2px 10px;
  font-size: 12px;
  gap: 8px;
  white-space: nowrap;
}

.clock-side {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.clock-side.primary-side {
  font-weight: 700;
  color: var(--trb-orange);
}

.clock-divider {
  width: 1px;
  height: 18px;
  background: var(--md-sys-color-outline-variant);
}

.clock-side.secondary-side {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--md-sys-color-on-surface);
  font-weight: 600;
}

.tz-dropdown-inline {
  background: var(--md-sys-color-surface);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 12px;
  padding: 2px 6px;
  font-size: 11px;
  font-weight: 600;
  color: var(--md-sys-color-on-surface);
  cursor: pointer;
  outline: none;
}

/* Vertical Calendar Timeslot Timeline Modal */
.vertical-timeline-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 8px;
  max-height: 55vh;
  overflow-y: auto;
  padding: 8px 4px;
  box-sizing: border-box;
}

.v-time-slot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--md-sys-color-surface-container);
  border: 1px solid var(--md-sys-color-outline-variant);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
  font-size: 13px;
  color: var(--md-sys-color-on-surface);
}

.v-time-slot:hover {
  background: var(--md-sys-color-surface-container-high);
  border-color: var(--trb-orange);
  transform: translateY(-1px);
}

.v-time-slot.selected {
  background: var(--trb-orange);
  border-color: var(--trb-orange);
  color: #FFFFFF;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(196, 102, 26, 0.35);
}

.v-time-label-stack {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.2;
}

.v-time-primary {
  font-size: 13px;
  font-weight: 700;
}

.v-time-secondary {
  font-size: 11px;
  font-weight: 500;
  opacity: 0.82;
}

.v-time-slot.selected .v-time-secondary {
  opacity: 0.95;
  color: #FFF3E0;
}

.v-time-slot .slot-check {
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.12s ease;
}

.v-time-slot.selected .slot-check {
  opacity: 1;
}

.v-period-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.v-period-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--md-sys-color-on-surface-variant);
  padding: 2px 4px;
  border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.auto-save-indicator {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: #2E7D32;
  font-weight: 600;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.auto-save-indicator.visible {
  opacity: 1;
}