/* ==========================================================================
   HOTEL INVOICE MANAGER — Design System
   Dual theme (dark/light), Inter font, glassmorphism, micro-animations
   ========================================================================== */

/* ---------- Google Font ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ==========================================================================
   THEME TOKENS
   ========================================================================== */

:root {
  /* Shared accent colors — muted, professional palette */
  --accent: #6C6FE0;
  --accent-hover: #7B7EE8;
  --accent-glow: rgba(108, 111, 224, 0.25);
  --success: #3DA57A;
  --success-bg: rgba(61, 165, 122, 0.12);
  --warning: #D4A03C;
  --warning-bg: rgba(212, 160, 60, 0.12);
  --error: #D4505A;
  --error-bg: rgba(212, 80, 90, 0.12);
  --info: #5B8DEF;
  --info-bg: rgba(91, 141, 239, 0.12);

  /* Typography scale */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-xs: 0.75rem;
  --font-sm: 0.8125rem;
  --font-base: 0.875rem;
  --font-md: 1rem;
  --font-lg: 1.25rem;
  --font-xl: 1.5rem;
  --font-2xl: 2rem;

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-pill: 20px;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 350ms;

  /* Sidebar width */
  --sidebar-width: 232px;
}

/* ---------- DARK THEME (default) ---------- */
[data-theme="dark"] {
  --bg-body: #0f1117;
  --bg-sidebar: #1a1d23;
  --bg-content: #1e2028;
  --bg-card: #252830;
  --bg-card-elevated: #2a2d36;
  --bg-hover: #2d313a;
  --bg-active: #363b47;
  --bg-input: #1a1d23;
  --text-primary: #f1f3f5;
  --text-secondary: #c9cdd4;
  --text-tertiary: #8b919a;
  --text-disabled: #5c6370;
  --border: #2d313a;
  --border-light: #252830;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --scrollbar-thumb: #363b47;
  --scrollbar-track: #1a1d23;
}

/* ---------- LIGHT THEME ---------- */
[data-theme="light"] {
  --bg-body: #f0f2f5;
  --bg-sidebar: #ffffff;
  --bg-content: #f5f7fa;
  --bg-card: #ffffff;
  --bg-card-elevated: #ffffff;
  --bg-hover: #f0f2f5;
  --bg-active: #e2e8f0;
  --bg-input: #f5f7fa;
  --text-primary: #1a1d23;
  --text-secondary: #4a5568;
  --text-tertiary: #a0aec0;
  --text-disabled: #cbd5e0;
  --border: #e2e8f0;
  --border-light: #edf2f7;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.06);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  --scrollbar-thumb: #cbd5e0;
  --scrollbar-track: #f0f2f5;
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-body);
  overflow-x: hidden;
}

a {
  color: var(--info);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease);
}
a:hover {
  color: var(--accent);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* ==========================================================================
   LAYOUT — Sidebar + Content
   ========================================================================== */

.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ---------- SIDEBAR ---------- */
.sidebar {
  width: var(--sidebar-width);
  min-height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--duration-normal) var(--ease);
}

.sidebar-header {
  padding: var(--space-xl);
  border-bottom: 1px solid var(--border);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.sidebar-brand-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.sidebar-brand-text {
  display: flex;
  flex-direction: column;
}

.sidebar-brand-name {
  font-size: var(--font-base);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.sidebar-brand-sub {
  font-size: var(--font-xs);
  color: var(--text-tertiary);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* Sidebar navigation */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg) 0;
}

.sidebar-section {
  margin-bottom: var(--space-lg);
}

.sidebar-section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 0 var(--space-xl);
  margin-bottom: var(--space-sm);
}

.nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 10px var(--space-xl);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-sm);
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all var(--duration-fast) var(--ease);
  cursor: pointer;
}

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

.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-left-color: var(--accent);
}

.nav-link-icon {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
  flex-shrink: 0;
}

.nav-link-text {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.drag-handle {
  color: var(--text-disabled);
  cursor: grab;
  font-size: var(--font-sm);
  padding: 2px;
  opacity: 0;
  transition: opacity var(--duration-fast) var(--ease);
}
.nav-item:hover .drag-handle {
  opacity: 1;
}

.coming-soon-badge {
  font-size: 0.625rem;
  font-weight: 600;
  color: var(--warning);
  background: var(--warning-bg);
  padding: 2px 6px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

/* Sidebar footer */
.sidebar-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-md) var(--space-lg);
  position: relative;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--duration-fast) var(--ease);
}
.sidebar-user:hover {
  background: var(--bg-hover);
}

.sidebar-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: var(--font-sm);
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: var(--font-xs);
  color: var(--text-tertiary);
}

/* User popover menu */
.user-popover {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: var(--space-md);
  right: var(--space-md);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs) 0;
  z-index: 100;
}
.user-popover.open {
  display: block;
  animation: fadeIn var(--duration-fast) var(--ease);
}
.user-popover-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 8px var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  font-family: var(--font-family);
  transition: all var(--duration-fast) var(--ease);
}
.user-popover-item:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}
.user-popover-divider {
  height: 1px;
  background: var(--border-light);
  margin: var(--space-xs) 0;
}
.user-popover-logout:hover {
  color: var(--error);
}

/* ---------- MAIN CONTENT ---------- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-height: 100vh;
  background: var(--bg-content);
}

.page-container {
  padding: var(--space-2xl);
  animation: fadeIn var(--duration-normal) var(--ease);
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Page header */
.page-header {
  margin-bottom: var(--space-2xl);
}

.page-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.page-breadcrumb {
  font-size: var(--font-sm);
  color: var(--text-tertiary);
  margin-top: var(--space-xs);
}

/* ==========================================================================
   COMPONENTS
   ========================================================================== */

/* ---------- CARDS ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--duration-normal) var(--ease);
}

.card-body {
  padding: var(--space-xl);
}

/* Glass card (stat cards, login, modals) */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  font-family: var(--font-family);
  font-size: var(--font-xs);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
.btn:active {
  transform: scale(0.97);
}

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

.btn-secondary {
  background: var(--bg-hover);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--bg-active);
  border-color: var(--text-tertiary);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.6875rem;
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-md);
}

/* ---------- FORM INPUTS ---------- */
.form-group {
  margin-bottom: var(--space-xl);
}

.form-label {
  display: block;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-family);
  font-size: var(--font-base);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--duration-fast) var(--ease);
}
.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input::placeholder {
  color: var(--text-disabled);
}

.form-input-group {
  position: relative;
}
.form-input-group .form-input {
  padding-right: 44px;
}
.form-input-group-append {
  position: absolute;
  right: 1px;
  top: 1px;
  bottom: 1px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: color var(--duration-fast) var(--ease);
}
.form-input-group-append:hover {
  color: var(--text-primary);
}

.form-select {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-family);
  font-size: var(--font-base);
  color: var(--text-primary);
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b919a' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* ---------- STATUS BADGES ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font-size: var(--font-xs);
  font-weight: 600;
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.badge-pending {
  color: #8A6820;
  background: var(--warning-bg);
}
[data-theme="dark"] .badge-pending {
  color: var(--warning);
}

.badge-approved {
  color: #1E7A53;
  background: var(--success-bg);
}
[data-theme="dark"] .badge-approved {
  color: var(--success);
}

.badge-rejected {
  color: #A8323C;
  background: var(--error-bg);
}
[data-theme="dark"] .badge-rejected {
  color: var(--error);
}

.badge-draft {
  color: var(--text-tertiary);
  background: var(--bg-hover);
}
.badge-uploading {
  color: var(--info);
  background: var(--info-bg);
}
.badge-processing {
  color: var(--warning);
  background: var(--warning-bg);
  animation: subtlePulse 2.5s ease-in-out infinite;
}
.badge-failed {
  color: var(--error);
  background: var(--error-bg);
}

/* Pending pulse */
@keyframes subtlePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.65; }
}
.badge-pending {
  animation: subtlePulse 2.5s ease-in-out infinite;
}

/* ---------- TABLE ---------- */
.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
}

.data-table thead th {
  font-size: var(--font-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition: color var(--duration-fast) var(--ease);
}
.data-table thead th:hover {
  color: var(--text-primary);
}

.data-table tbody tr {
  transition: all var(--duration-fast) var(--ease);
}
.data-table tbody tr:hover {
  background: var(--bg-hover);
  transform: translateX(2px);
}

.data-table tbody td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: var(--font-sm);
  vertical-align: middle;
}

.table-cell-primary {
  font-weight: 600;
}
.table-cell-secondary {
  font-size: var(--font-xs);
  color: var(--text-tertiary);
}

/* ---------- TABS ---------- */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-xl);
}

.tab {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--text-tertiary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-family);
  white-space: nowrap;
}
.tab:hover {
  color: var(--text-primary);
}
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tab-count {
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--text-tertiary);
  background: var(--bg-hover);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-left: var(--space-sm);
}
.tab.active .tab-count {
  color: var(--accent);
  background: rgba(108, 111, 224, 0.12);
}

/* ---------- FILTER BAR ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
  align-items: flex-end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.filter-label {
  font-size: var(--font-xs);
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.filter-input {
  padding: 8px 12px;
  font-family: var(--font-family);
  font-size: var(--font-sm);
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--duration-fast) var(--ease);
  min-width: 160px;
}
.filter-input:focus {
  border-color: var(--accent);
}

.filter-actions {
  display: flex;
  gap: var(--space-sm);
  margin-left: auto;
}

/* ---------- PAGINATION ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) 0;
  font-size: var(--font-sm);
  color: var(--text-tertiary);
}

.pagination-info {
  font-size: var(--font-sm);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.pagination-btn {
  padding: 6px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
}
.pagination-btn:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--text-tertiary);
}
.pagination-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.pagination-current {
  padding: 6px 12px;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---------- ACTIONS DROPDOWN ---------- */
.actions-wrapper {
  position: relative;
}

.actions-trigger {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--font-md);
  transition: all var(--duration-fast) var(--ease);
}
.actions-trigger:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border);
}

.actions-menu {
  position: absolute;
  right: 0;
  bottom: 100%;
  margin-bottom: 4px;
  min-width: 160px;
  background: var(--bg-card-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-xs);
  z-index: 50;
  display: none;
}
.actions-menu.show {
  display: block;
}

.actions-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 8px 12px;
  font-size: var(--font-sm);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-family);
}
.actions-menu-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.actions-menu-item.danger:hover {
  background: var(--error-bg);
  color: var(--error);
}

/* ---------- EMPTY STATE ---------- */
.empty-state {
  text-align: center;
  padding: var(--space-3xl) var(--space-xl);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.4;
}

.empty-state-title {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.empty-state-text {
  font-size: var(--font-sm);
  color: var(--text-tertiary);
  max-width: 400px;
  margin: 0 auto;
}

/* ==========================================================================
   TOAST NOTIFICATIONS
   ========================================================================== */

.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-card-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-sm);
  color: var(--text-primary);
  min-width: 300px;
  max-width: 450px;
  animation: toastIn var(--duration-normal) var(--ease);
  border-left: 3px solid var(--info);
}

.toast.toast-success { border-left-color: var(--success); }
.toast.toast-error { border-left-color: var(--error); }
.toast.toast-warning { border-left-color: var(--warning); }

.toast-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.toast-message {
  flex: 1;
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-tertiary);
  cursor: pointer;
  font-size: var(--font-md);
  padding: 4px;
  transition: color var(--duration-fast) var(--ease);
}
.toast-close:hover {
  color: var(--text-primary);
}

@keyframes toastIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(40px); }
}

.toast.removing {
  animation: toastOut var(--duration-fast) var(--ease) forwards;
}

/* ==========================================================================
   LOGIN PAGE
   ========================================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0f1117;
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(108, 111, 224, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(91, 141, 239, 0.04) 0%, transparent 50%);
  padding: var(--space-xl);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: rgba(37, 40, 48, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-xl);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
  padding: var(--space-3xl);
  animation: loginCardIn 0.5s var(--ease);
}

@keyframes loginCardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.login-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  display: block;
}

.login-title {
  font-size: var(--font-lg);
  font-weight: 700;
  color: #f1f3f5;
  margin-bottom: var(--space-xs);
}

.login-subtitle {
  font-size: var(--font-sm);
  color: #8b919a;
}

/* Login form overrides for always-dark context */
.login-card .form-label {
  color: #c9cdd4;
}
.login-card .form-input {
  background: #1a1d23;
  border-color: #2d313a;
  color: #f1f3f5;
}
.login-card .form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.login-card .form-input::placeholder {
  color: #5c6370;
}
.login-card .form-input-group-append {
  color: #8b919a;
}
.login-card .form-input-group-append:hover {
  color: #f1f3f5;
}

.login-btn {
  width: 100%;
  padding: 10px;
  font-size: var(--font-sm);
  font-weight: 600;
  margin-top: var(--space-sm);
}

.login-error {
  background: var(--error-bg);
  border: 1px solid rgba(212, 80, 90, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  margin-bottom: var(--space-xl);
  font-size: var(--font-sm);
  color: var(--error);
  animation: shake 0.4s var(--ease);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* ==========================================================================
   COMING SOON PAGE
   ========================================================================== */

.coming-soon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 60vh;
  animation: fadeIn var(--duration-slow) var(--ease);
}

.coming-soon-icon {
  font-size: 4rem;
  margin-bottom: var(--space-xl);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.coming-soon-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-md);
}

.coming-soon-text {
  font-size: var(--font-base);
  color: var(--text-tertiary);
  max-width: 400px;
}

/* ==========================================================================
   BILLS PAGE SPECIFICS
   ========================================================================== */

.bills-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2xl);
}

.bills-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: visible;
}

/* Checkbox */
.checkbox-cell {
  width: 40px;
}

.custom-checkbox {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* Sort indicator */
.sort-icon {
  font-size: 0.7rem;
  margin-left: 4px;
  opacity: 0.5;
}

th.sorted .sort-icon {
  opacity: 1;
}

/* ==========================================================================
   MOBILE / RESPONSIVE
   ========================================================================== */

.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--space-lg);
  align-items: center;
  justify-content: space-between;
  z-index: 99;
}

.mobile-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.3rem;
  cursor: pointer;
  padding: var(--space-sm);
}

.mobile-brand {
  font-weight: 700;
  color: var(--text-primary);
  font-size: var(--font-base);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 99;
}

@media (max-width: 768px) {
  .mobile-header {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    z-index: 200;
  }
  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay.show {
    display: block;
  }

  .main-content {
    margin-left: 0;
    padding-top: 56px;
  }

  .page-container {
    padding: var(--space-lg);
  }

  .filter-bar {
    flex-direction: column;
  }
  .filter-input {
    min-width: 100%;
  }
  .filter-actions {
    margin-left: 0;
    width: 100%;
  }
  .filter-actions .btn {
    flex: 1;
  }

  .tabs {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
}

/* ==========================================================================
   SORTABLEJS DRAG STATES
   ========================================================================== */

.sortable-ghost {
  opacity: 0.3;
}

.sortable-chosen {
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
}

.sortable-drag {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   UTILITY CLASSES
   ========================================================================== */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-tertiary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-error { color: var(--error); }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none !important; }


/* ==========================================================================
   TOM SELECT — Theme overrides (review page)
   Higher-specificity selectors so !important is not needed.
   ========================================================================== */

.review-data-panel .ts-wrapper .ts-control {
  background: var(--bg-input);
  border-color: var(--border);
  color: var(--text-primary);
  font-size: var(--font-xs);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  min-height: 28px;
}
.review-data-panel .ts-wrapper .ts-control input {
  color: var(--text-primary);
  font-size: var(--font-xs);
}

/* Dropdown inside wrapper AND detached to body (dropdownParent: 'body') */
.review-data-panel .ts-wrapper .ts-dropdown,
.ts-dropdown.ts-dropdown {
  background: var(--bg-card-elevated);
  border-color: var(--border);
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  z-index: 9000;
}
.review-data-panel .ts-wrapper .ts-dropdown .option,
.ts-dropdown.ts-dropdown .option {
  color: var(--text-primary);
  font-size: var(--font-xs);
  padding: 6px 10px;
}
.review-data-panel .ts-wrapper .ts-dropdown .option:hover,
.review-data-panel .ts-wrapper .ts-dropdown .active,
.ts-dropdown.ts-dropdown .option:hover,
.ts-dropdown.ts-dropdown .active {
  background: var(--bg-hover);
  color: var(--text-primary);
}
.ts-dropdown.ts-dropdown .ts-dropdown-content {
  background: var(--bg-card-elevated);
}
.ts-dropdown.ts-dropdown .no-results {
  color: var(--text-tertiary);
  font-size: var(--font-xs);
  padding: 6px 10px;
}

/* COA color-coded borders — must follow general overrides */
.coa-memorized .ts-wrapper .ts-control { border-color: var(--success); border-width: 2px; }
.coa-ai .ts-wrapper .ts-control       { border-color: var(--warning); border-width: 2px; }
.coa-unmatched .ts-wrapper .ts-control { border-color: var(--error); border-width: 2px; }
.coa-auto .ts-wrapper .ts-control      { border-color: var(--info); border-width: 2px; }


/* Hide mobile-only elements on desktop */
.filter-toggle-btn { display: none; }

/* ==========================================================================
   MOBILE — Touch target sizing (touch devices only, no desktop impact)
   ========================================================================== */

@media (pointer: coarse) {
  .btn-sm {
    min-height: 44px;
    padding: 10px 16px;
  }
  .actions-trigger {
    width: 44px;
    height: 44px;
  }
  .vendor-action-btn,
  .cat-action-btn {
    min-height: 44px;
    padding: 10px 14px;
  }
  .pagination-btn {
    min-height: 44px;
    padding: 10px 16px;
  }
  .custom-checkbox,
  .vendor-checkbox {
    width: 22px;
    height: 22px;
  }
}


/* ==========================================================================
   MOBILE — All responsive overrides (max-width: 768px)
   ========================================================================== */

@media (max-width: 768px) {

  /* --- iOS zoom prevention (inputs < 16px trigger auto-zoom) --- */
  .form-input,
  .form-select,
  .filter-input,
  select,
  input[type="text"],
  input[type="password"],
  input[type="email"],
  input[type="date"],
  textarea,
  .ts-control {
    font-size: 16px !important;
  }

  /* --- Toast overflow fix --- */
  .toast-container {
    left: var(--space-md);
    right: var(--space-md);
    top: 64px;
  }
  .toast {
    min-width: 0;
    max-width: 100%;
  }

  /* --- Modal mobile fix --- */
  .modal-card {
    max-width: calc(100% - 32px);
    max-height: calc(100vh - 32px);
    overflow-y: auto;
    margin: 16px;
  }

  /* --- Safe area insets for notched phones --- */
  .mobile-header {
    padding-top: env(safe-area-inset-top);
    height: calc(56px + env(safe-area-inset-top));
  }
  .main-content {
    padding-bottom: env(safe-area-inset-bottom);
  }
  .page-container {
    padding-left: calc(var(--space-lg) + env(safe-area-inset-left));
    padding-right: calc(var(--space-lg) + env(safe-area-inset-right));
  }

  /* --- Prevent horizontal page overflow --- */
  html, body { overflow-x: hidden; }
  .main-content { overflow-x: hidden; }

  /* --- Table horizontal scroll wrapper --- */
  .table-scroll-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    max-width: 100%;
  }

  /* --- Cards containing tables: contain overflow --- */
  .bills-table-card { overflow: hidden; }

  /* --- Collapsible filter bar (CSS-only checkbox hack) --- */
  .filter-toggle-btn {
    display: inline-flex;
    margin-bottom: var(--space-md);
  }
  .filter-collapsible {
    display: none;
  }
  .filter-toggle-check:checked ~ .filter-collapsible {
    display: flex;
    flex-direction: column;
  }
  .filter-toggle-check:checked ~ .filter-toggle-btn::after {
    content: ' ▲';
  }
  .filter-toggle-btn::after {
    content: ' ▼';
  }

  /* --- Bills table: min-width for horizontal scroll --- */
  #billsTable { min-width: 580px; }

  /* --- Page headers stack vertically --- */
  .bills-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }
  .page-title {
    font-size: var(--font-lg);
  }

  /* --- Pagination: center and stack --- */
  .pagination {
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
    text-align: center;
  }

  /* --- Compact table cells --- */
  .data-table tbody td,
  .data-table thead th {
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-sm);
  }

  /* --- Line items tables: min-width for scroll --- */
  #itemsTable { min-width: 700px; }
  #summaryTable { min-width: 550px; }

  /* --- Login card: tighter padding --- */
  .login-card {
    padding: var(--space-xl);
  }
}