/* ==========================================================================
   TDA Web Platform - Design System & Modern Mobile-First Stylesheet
   ========================================================================== */

:root {
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Color Palette: Dark mode default (Deep Slate & Sapphire) */
  --bg-app: #080c14;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-card-hover: rgba(26, 36, 56, 0.95);
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --bg-input: rgba(15, 23, 42, 0.9);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-focus: #3b82f6;
  --border-card: rgba(255, 255, 255, 0.12);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.35);

  --accent: #06b6d4;
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.25);
  --warning: #f59e0b;
  --danger: #ef4444;
  --danger-glow: rgba(239, 68, 68, 0.25);
  --info: #8b5cf6;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--primary-glow);

  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-height: 64px;
  --bottom-bar-height: 68px;
}

/* Light Mode Overrides */
[data-theme="light"] {
  --bg-app: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.95);
  --bg-card-hover: #ffffff;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #e2e8f0;
  --bg-input: #ffffff;
  
  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-card: rgba(0, 0, 0, 0.12);
  --border-focus: #2563eb;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-dim: #94a3b8;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-glow: rgba(37, 99, 235, 0.2);

  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  font-family: var(--font-sans);
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  min-height: 100dvh;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  padding-bottom: calc(var(--bottom-bar-height) + 16px);
}

@media (min-width: 768px) {
  body {
    padding-bottom: 32px;
  }
}

/* Typography & Links */
h1, h2, h3, h4, h5 {
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.25;
}

h1 { font-size: 1.65rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--primary-hover);
}

/* App Header / Navigation */
.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

[data-theme="light"] .app-header {
  background: rgba(255, 255, 255, 0.85);
}

.header-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--text-main);
  cursor: pointer;
}

.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 12px var(--primary-glow);
}

.brand-tag {
  font-size: 0.7rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  margin-left: 4px;
}

/* Desktop Nav Links */
.desktop-nav {
  display: none;
  align-items: center;
  gap: 6px;
}

@media (min-width: 768px) {
  .desktop-nav {
    display: flex;
  }
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.nav-link:hover {
  color: var(--text-main);
  background: var(--bg-surface-elevated);
}

.nav-link.active {
  color: #fff;
  background: var(--primary);
  box-shadow: 0 2px 10px var(--primary-glow);
}

/* Header User Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface-elevated);
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.user-avatar {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
}

/* Mobile Bottom Navigation Bar */
.bottom-nav {
  display: flex;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--bottom-bar-height);
  background: rgba(15, 23, 42, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-subtle);
  z-index: 50;
  align-items: center;
  justify-content: space-around;
  padding: 4px 8px env(safe-area-inset-bottom);
}

[data-theme="light"] .bottom-nav {
  background: rgba(255, 255, 255, 0.94);
}

@media (min-width: 768px) {
  .bottom-nav {
    display: none;
  }
}

.bottom-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 6px 0;
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-radius: var(--radius-md);
}

.bottom-tab svg {
  width: 22px;
  height: 22px;
  transition: transform var(--transition-fast);
}

.bottom-tab.active {
  color: var(--primary);
}

.bottom-tab.active svg {
  transform: translateY(-2px);
  stroke: var(--primary);
}

/* Main Layout Wrapper */
.main-content {
  flex: 1;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
  padding-bottom: calc(var(--bottom-bar-height) + 80px);
}

@media (min-width: 768px) {
  .main-content {
    padding: 24px;
    padding-bottom: 90px;
  }
}

/* Glassmorphic Cards */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

.card-title svg {
  color: var(--primary);
}

/* Form Controls & Inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-control, .form-select, textarea.form-control {
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-main);
  background: var(--bg-input);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus, .form-select:focus, textarea.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-control::placeholder {
  color: var(--text-dim);
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 600px) {
  .form-row-2 {
    grid-template-columns: 1fr 1fr;
  }
  .form-row-3 {
    grid-template-columns: 1fr 1fr 1fr;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  user-select: none;
  min-height: 44px; /* Touch target minimum */
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff;
  box-shadow: 0 4px 14px var(--success-glow);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-main);
  border: 1px solid var(--border-card);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

.btn-outline:hover {
  background: rgba(59, 130, 246, 0.1);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 4px 12px var(--danger-glow);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-md);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  min-height: 34px;
}

.btn-block {
  width: 100%;
}

/* Travel Segment Cards (The Core Segment Workflow) */
.segments-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.segment-item {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px;
  position: relative;
  transition: all var(--transition-fast);
}

.segment-item:hover {
  border-color: rgba(59, 130, 246, 0.4);
  background: rgba(15, 23, 42, 0.85);
}

.segment-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.segment-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 700;
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  padding: 3px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.segment-delete-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.segment-delete-btn:hover {
  color: var(--danger);
}

/* Quick Route Chips */
.route-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
  margin-bottom: 12px;
}

.route-chip {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.route-chip:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* Sticky Live Calculation Running Total Bar */
.sticky-summary-bar {
  position: sticky;
  bottom: calc(var(--bottom-bar-height) + 8px);
  z-index: 30;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-lg);
  padding: 12px 18px;
  margin: 16px 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 20px var(--primary-glow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 768px) {
  .sticky-summary-bar {
    bottom: 24px;
  }
}

.summary-stat-group {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.summary-stat {
  display: flex;
  flex-direction: column;
}

.summary-stat-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-stat-value {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.summary-stat.grand .summary-stat-value {
  color: #38bdf8;
  font-size: 1.25rem;
}

/* Dashboard Summary Metrics Cards */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}

@media (min-width: 768px) {
  .dashboard-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.metric-card.success::before { background: var(--success); }
.metric-card.warning::before { background: var(--warning); }
.metric-card.info::before { background: var(--info); }

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

.metric-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

.metric-value {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-main);
}

.metric-sub {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 4px;
}

/* History Calendar View */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-top: 14px;
}

.calendar-day-header {
  text-align: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-dim);
  padding: 6px 0;
}

.calendar-day-cell {
  aspect-ratio: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  padding: 4px;
}

.calendar-day-cell:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.calendar-day-cell.today {
  border-color: #38bdf8;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

.calendar-day-cell.completed {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.4);
}

.calendar-day-cell.completed .day-num {
  color: #34d399;
}

.calendar-day-cell.off {
  background: rgba(100, 116, 139, 0.12);
  border-color: rgba(100, 116, 139, 0.25);
  opacity: 0.7;
}

.calendar-day-cell.missing {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.4);
}

.calendar-day-cell.missing .day-num {
  color: #fbbf24;
}

.day-num {
  font-weight: 700;
  font-size: 0.88rem;
}

.day-badge {
  font-size: 0.65rem;
  font-weight: 600;
  margin-top: 2px;
}

/* History List View */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.history-item:hover {
  border-color: var(--primary);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.history-date-col {
  display: flex;
  flex-direction: column;
}

.history-date {
  font-weight: 700;
  font-size: 0.95rem;
}

.history-dest {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.history-total {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: #38bdf8;
}

/* Tabs inside views */
.nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  gap: 8px;
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 90vw;
  width: 360px;
  pointer-events: none;
}

.toast {
  background: rgba(15, 23, 42, 0.96);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-main);
  animation: slideIn 0.3s ease-out;
  pointer-events: auto;
}

.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }
.toast.info { border-left: 4px solid var(--primary); }
.toast.warning { border-left: 4px solid var(--warning); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Loading Spinners */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
}

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

/* Utility Classes */
.d-none { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-mono { font-family: var(--font-mono); }

/* Hotel Stay Simplified Component */
.hotel-card {
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  border-left: 4px solid transparent;
}
.hotel-card.active {
  border-left-color: var(--primary) !important;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08) 0%, rgba(30, 41, 59, 0.6) 100%) !important;
  border-color: rgba(59, 130, 246, 0.35) !important;
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.15) !important;
}
.hotel-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  user-select: none;
  margin-bottom: 0;
  padding: 4px 0;
}
.hotel-checkbox-custom {
  width: 22px;
  height: 22px;
  accent-color: var(--primary);
  cursor: pointer;
  border-radius: 6px;
}
.hotel-amount-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.hotel-currency-symbol {
  position: absolute;
  left: 14px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary-light);
  pointer-events: none;
}
.hotel-amount-input {
  padding-left: 38px !important;
  font-size: 1.25rem !important;
  font-weight: 700 !important;
  height: 48px !important;
  color: #fff !important;
  background: rgba(15, 23, 42, 0.7) !important;
  border-color: rgba(59, 130, 246, 0.4) !important;
}
.hotel-amount-input:focus {
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25) !important;
}

/* ==========================================================================
   Screenshot-Aligned Daily Bill Entry & Smart Segments Components
   ========================================================================== */

/* Top Bar Card */
.entry-header-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}
.entry-header-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.header-field-label {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* Station DA Dual Toggle Buttons */
.station-da-group {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.station-da-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
}
.station-da-btn:hover {
  background: rgba(59, 130, 246, 0.12);
  border-color: rgba(59, 130, 246, 0.3);
}
.station-da-btn.active {
  background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%) !important;
  color: #ffffff !important;
  border-color: #60a5fa !important;
  box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4), inset 0 1px 1px rgba(255, 255, 255, 0.3);
}
.da-rate-pill {
  padding: 2px 7px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #e0f2fe;
}
.station-da-btn.active .da-rate-pill {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.35);
  color: #ffffff;
}

/* Quick Presets Box */
.quick-presets-box {
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.05) 0%, rgba(15, 23, 42, 0.4) 100%);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 16px;
}
[data-theme="light"] .quick-presets-box {
  background: linear-gradient(180deg, #fffdfa 0%, #fef8ee 100%);
  border-color: #fed7aa;
}
.presets-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}
.presets-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.btn-preset-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}
.btn-preset-save {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.35);
}
.btn-preset-save:hover {
  background: rgba(245, 158, 11, 0.25);
}
.btn-preset-copy {
  background: rgba(59, 130, 246, 0.12);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.3);
}
.btn-preset-copy:hover {
  background: rgba(59, 130, 246, 0.22);
}
.btn-preset-manage {
  background: var(--bg-surface-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}
.btn-preset-manage:hover {
  color: var(--text-main);
  background: var(--bg-card-hover);
}

/* Quick Tap Station Pills */
.quick-tap-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.quick-tap-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.quick-tap-pills {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.quick-tap-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}
[data-theme="light"] .quick-tap-pill {
  background: #ffffff;
  border-color: #e2e8f0;
  color: #334155;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}
.quick-tap-pill:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  transform: translateY(-1px);
}
.quick-tap-pill:active {
  transform: translateY(0);
}

/* Leg Card (Clean, well-aligned) */
.leg-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  margin-bottom: 12px;
  position: relative;
  transition: border-color 0.2s ease;
}
[data-theme="light"] .leg-card {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}
.leg-card:hover {
  border-color: rgba(59, 130, 246, 0.35);
}
.leg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.leg-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 0.82rem;
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.12);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.leg-recall-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-weight: 700;
  font-size: 0.72rem;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  animation: recallFadeIn 0.25s ease-out;
}
.leg-recall-pill.is-reverse {
  color: #60a5fa;
  background: rgba(59, 130, 246, 0.14);
  border-color: rgba(59, 130, 246, 0.35);
}
@keyframes recallFadeIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}
.input-recalled-glow {
  border-color: #10b981 !important;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.25) !important;
  transition: all 0.25s ease !important;
}
.leg-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}
.leg-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 9px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}
.leg-action-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}
.leg-action-btn.btn-swap:hover {
  color: #60a5fa;
  border-color: rgba(59, 130, 246, 0.4);
}
.leg-action-btn.btn-return {
  color: #10b981;
  border-color: rgba(16, 185, 129, 0.3);
  background: rgba(16, 185, 129, 0.08);
}
.leg-action-btn.btn-return:hover {
  background: rgba(16, 185, 129, 0.18);
  border-color: rgba(16, 185, 129, 0.5);
}
.leg-action-btn.btn-delete:hover {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.4);
  background: rgba(239, 68, 68, 0.1);
}

/* Leg Grid Form Row */
.leg-grid {
  display: grid;
  grid-template-columns: 2fr 2fr 1fr 1.5fr 1.2fr;
  gap: 10px;
  align-items: flex-end;
}
@media (max-width: 900px) {
  .leg-grid {
    grid-template-columns: 1fr 1fr;
  }
  .leg-grid-cost {
    grid-column: span 2;
  }
}

/* Segment Action Buttons Row */
.segment-footer-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}
.btn-add-segment-dashed {
  flex: 1;
  border: 2px dashed rgba(59, 130, 246, 0.4);
  background: rgba(59, 130, 246, 0.05);
  color: var(--primary-light);
  font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-add-segment-dashed:hover {
  background: rgba(59, 130, 246, 0.12);
  border-color: var(--primary);
  transform: translateY(-1px);
}
.btn-return-base {
  padding: 10px 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(139, 92, 246, 0.35);
  background: rgba(139, 92, 246, 0.08);
  color: #c4b5fd;
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.btn-return-base:hover {
  background: rgba(139, 92, 246, 0.18);
  border-color: rgba(139, 92, 246, 0.5);
  color: #ede9fe;
}
.segments-subtotal-bar {
  margin-top: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Day Expense Claim Total Bar */
.claim-total-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  margin-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] .claim-total-bar {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}
.claim-total-display {
  display: flex;
  align-items: baseline;
  gap: 14px;
}
.claim-total-label {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.claim-total-amount {
  font-size: 2.2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #38bdf8;
  letter-spacing: -0.02em;
}
.claim-actions-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Modal Dialogs */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  width: 100%;
  max-width: 680px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 24px;
  color: var(--text-main);
  animation: slideUp 0.25s ease-out;
  position: relative;
}

[data-theme="light"] .modal-content {
  background: #ffffff;
  border-color: #e2e8f0;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

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

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

/* Policy Card & Editor Elements */
.policy-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 20px;
  margin-bottom: 16px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.policy-card:hover {
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

.policy-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

.policy-badge-active {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.policy-badge-inactive {
  background: rgba(148, 163, 184, 0.15);
  color: #94a3b8;
  border: 1px solid rgba(148, 163, 184, 0.3);
}

.policy-badge-version {
  background: rgba(59, 130, 246, 0.15);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.35);
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.policy-metric-box {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

[data-theme="light"] .policy-metric-box {
  background: #f8fafc;
  border-color: #e2e8f0;
}

.policy-metric-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.policy-metric-val {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
}

.policy-editor-section {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 16px;
}

.policy-editor-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-light);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.weekday-checkbox-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.2);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-fast);
}

.weekday-checkbox-pill:hover {
  border-color: var(--primary);
}

.weekday-checkbox-pill input:checked + span {
  color: var(--primary-light);
  font-weight: 700;
}