/* ============================================
   Global CSS Variables - Premium Theme System
   ============================================

   This file defines CSS custom properties (variables) for consistent
   theming across the application. Features a premium enterprise aesthetic
   with sophisticated color palettes and refined typography.

   Light Theme: "Refined Pearl" - Clean, professional with warm undertones
   Dark Theme: "Obsidian Luxury" - Rich, sophisticated with teal accents
*/

/* ============================================
   CSS VARIABLES - Light Theme (Refined Pearl)
   ============================================ */

/* Maintenance365 tokens. Light: a quiet green-grey ground with one teal accent.
   Red, amber and blue are reserved for priority and status, never decoration. */
:root {
  /* Accent: teal. White text on it passes 4.5:1. */
  --color-primary: #0B6E69;
  --color-primary-hover: #08524E;
  --color-primary-light: #3A9690;
  --color-primary-dark: #064541;
  --color-primary-soft: #E3F1EF;
  --color-primary-strong: #08524E;

  --color-accent: #0B6E69;
  --color-accent-hover: #08524E;
  --color-accent-light: #3A9690;

  --color-bg-primary: #FFFFFF;
  --color-bg-secondary: #F3F4F1;
  --color-bg-tertiary: #F1F2EE;
  --color-bg-hover: rgba(11, 110, 105, 0.05);

  --color-text-primary: #16191D;
  --color-text-secondary: #4A5058;
  --color-text-tertiary: #5E646D;
  --color-text-muted: #737982;
  --color-text-inverse: #FFFFFF;

  --color-border-primary: #E2E4DF;
  --color-border-secondary: #EEF0EC;
  --color-border-strong: #CFD3CB;
  --color-border-focus: #0B6E69;

  --color-input-bg: #FFFFFF;
  --color-input-border: #CFD3CB;
  --color-input-focus: #0B6E69;

  --color-success: #1F7A45;
  --color-success-bg: #E4F3EA;
  --color-success-border: #9CCFB0;
  --color-success-text: #1F7A45;

  --color-error: #B42318;
  --color-error-bg: #FDECEA;
  --color-error-border: #F1AFA8;
  --color-error-text: #B42318;

  --color-warning: #D98A0B;
  --color-warning-bg: #FDF2DC;
  --color-warning-border: #F0C77A;
  --color-warning-text: #9A5B00;

  --color-info: #4F74B0;
  --color-info-bg: #E8EEF6;
  --color-info-border: #A9BEDC;
  --color-info-text: #2F4B73;

  --color-shadow-sm: rgba(22, 25, 29, 0.05);
  --color-shadow-md: rgba(22, 25, 29, 0.07);
  --color-shadow-lg: rgba(22, 25, 29, 0.09);
  --color-shadow-xl: rgba(22, 25, 29, 0.12);
  --color-shadow-glass: rgba(22, 25, 29, 0.05);

  /* Flat surfaces: shadows only lift what floats (menus, dialogs). */
  --shadow-sm: 0 1px 2px 0 var(--color-shadow-sm);
  --shadow-md: 0 1px 3px 0 var(--color-shadow-md);
  --shadow-lg: 0 4px 12px -2px var(--color-shadow-lg);
  --shadow-xl: 0 12px 32px -8px var(--color-shadow-xl);
  --shadow-premium: var(--shadow-lg);

  --glass-bg: rgba(255, 255, 255, 0.92);
  --glass-border: var(--color-border-primary);
  --glass-blur: blur(8px);

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.625rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 0.875rem;

  --transition-fast: 120ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 240ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 240ms cubic-bezier(0.4, 0, 0.2, 1);

  --font-family: 'Geist', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --letter-spacing-tight: -0.01em;
  --letter-spacing-normal: 0;
  --letter-spacing-wide: 0.04em;
}

/* Dark: the same roles on a graphite ground. The accent turns lighter and takes dark text. */
[data-theme="dark"] {
  --color-primary: #3FB3A8;
  --color-primary-hover: #5CC4BA;
  --color-primary-light: #7FD3CB;
  --color-primary-dark: #2B8F86;
  --color-primary-soft: rgba(63, 179, 168, 0.14);
  --color-primary-strong: #7FD3CB;

  --color-accent: #3FB3A8;
  --color-accent-hover: #5CC4BA;
  --color-accent-light: #7FD3CB;

  --color-bg-primary: #181B20;
  --color-bg-secondary: #111317;
  --color-bg-tertiary: #20242A;
  --color-bg-hover: rgba(63, 179, 168, 0.07);

  --color-text-primary: #E8EAED;
  --color-text-secondary: #B8BDC4;
  --color-text-tertiary: #9AA0A8;
  --color-text-muted: #7D838C;
  --color-text-inverse: #0B1413;

  --color-border-primary: rgba(232, 234, 237, 0.10);
  --color-border-secondary: rgba(232, 234, 237, 0.06);
  --color-border-strong: rgba(232, 234, 237, 0.18);
  --color-border-focus: #3FB3A8;

  --color-input-bg: #111317;
  --color-input-border: rgba(232, 234, 237, 0.18);
  --color-input-focus: #3FB3A8;

  --color-success: #4ABF7A;
  --color-success-bg: rgba(74, 191, 122, 0.13);
  --color-success-border: rgba(74, 191, 122, 0.35);
  --color-success-text: #6FD39A;

  --color-error: #F0645A;
  --color-error-bg: rgba(240, 100, 90, 0.13);
  --color-error-border: rgba(240, 100, 90, 0.35);
  --color-error-text: #F58A82;

  --color-warning: #E9A23B;
  --color-warning-bg: rgba(233, 162, 59, 0.13);
  --color-warning-border: rgba(233, 162, 59, 0.35);
  --color-warning-text: #F2B866;

  --color-info: #7EA2DA;
  --color-info-bg: rgba(126, 162, 218, 0.13);
  --color-info-border: rgba(126, 162, 218, 0.35);
  --color-info-text: #A7C1E8;

  --color-shadow-sm: rgba(0, 0, 0, 0.35);
  --color-shadow-md: rgba(0, 0, 0, 0.4);
  --color-shadow-lg: rgba(0, 0, 0, 0.5);
  --color-shadow-xl: rgba(0, 0, 0, 0.6);
  --color-shadow-glass: rgba(0, 0, 0, 0.35);

  --shadow-sm: 0 1px 2px 0 var(--color-shadow-sm);
  --shadow-md: 0 1px 3px 0 var(--color-shadow-md);
  --shadow-lg: 0 4px 12px -2px var(--color-shadow-lg);
  --shadow-xl: 0 12px 32px -8px var(--color-shadow-xl);
  --shadow-premium: var(--shadow-lg);

  --glass-bg: rgba(24, 27, 32, 0.94);
  --glass-border: var(--color-border-primary);
  --glass-blur: blur(8px);
}

/* Blue Accent Theme */
[data-theme="blue"] {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-light: #3b82f6;
  --color-border-focus: #2563eb;
  --color-accent: #2563eb;
}

/* Element defaults sit in the base layer, so Tailwind utilities on an element win over them.
   Unlayered, the link colour here overrode every text-* class on a link. */
@layer base {
  /* ============================================
     BASE STYLES
     ============================================ */

  body {
    font-family: var(--font-family);
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }


  /* Headings with tighter letter-spacing */
  h1, h2, h3, h4, h5, h6,
  .text-xl, .text-2xl, .text-3xl, .text-4xl, .text-5xl {
    letter-spacing: var(--letter-spacing-tight);
  }

  /* ============================================
     FORM INPUTS
     ============================================ */

  input[type="text"],
  input[type="email"],
  input[type="password"],
  input[type="number"],
  input[type="date"],
  input[type="datetime-local"],
  textarea,
  select {
    background-color: var(--color-input-bg);
    border: 1px solid var(--color-input-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    padding: 0.625rem 0.875rem;
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
    font-family: var(--font-family);
  }

  input:focus,
  textarea:focus,
  select:focus {
    border-color: var(--color-input-focus);
    outline: none;
    box-shadow: 0 0 0 3px var(--color-primary-soft), 0 0 0 1px var(--color-input-focus);
  }

  [data-theme="dark"] input:focus,
  [data-theme="dark"] textarea:focus,
  [data-theme="dark"] select:focus {
    box-shadow: 0 0 0 3px var(--color-primary-soft), 0 0 0 1px var(--color-input-focus);
  }

  input::placeholder,
  textarea::placeholder {
    color: var(--color-text-muted);
    opacity: 0.8;
  }

  /* Select dropdown styling for dark theme */
  [data-theme="dark"] select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2394a3b8' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
  }

  /* ============================================
     LINKS
     ============================================ */

  a {
    color: var(--color-primary);
    transition: color var(--transition-base);
  }

  a:hover {
    color: var(--color-primary-hover);
  }

  [data-theme="dark"] a {
    color: var(--color-accent);
  }

  [data-theme="dark"] a:hover {
    color: var(--color-accent-light);
  }
}

/* ============================================
   BUTTONS
   ============================================ */

.bg-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
}

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

.bg-primary:active {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  transform: scale(0.98);
}

.bg-primary.rounded-full {
  border-radius: 9999px;
}

/* Accent button styles */
.bg-accent {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
}

.bg-accent:hover {
  background-color: var(--color-accent-hover);
  box-shadow: var(--shadow-md);
}

/* Active/Selected state for navigation items */
.bg-primary.text-text-inverse,
.bg-primary.text-text-inverse:hover,
.bg-primary.text-text-inverse:active {
  color: var(--color-text-inverse) !important;
}

/* Ensure buttons with primary background always have correct text color */
button.bg-primary,
a.bg-primary,
input[type="submit"].bg-primary,
.bg-primary button,
.bg-primary a {
  color: var(--color-text-inverse) !important;
}

button.bg-primary:hover,
a.bg-primary:hover,
input[type="submit"].bg-primary:hover,
.bg-primary:hover button,
.bg-primary:hover a {
  color: var(--color-text-inverse) !important;
}

/* Secondary buttons with primary hover */
.bg-bg-tertiary.hover\:bg-primary-hover:hover,
a.bg-bg-tertiary.hover\:bg-primary-hover:hover,
button.bg-bg-tertiary.hover\:bg-primary-hover:hover {
  color: var(--color-text-inverse) !important;
}

/* Any element with bg-primary or hover:bg-primary-hover should have white text on hover */
.hover\:bg-primary-hover:hover {
  color: var(--color-text-inverse) !important;
}

/* Ensure text-text-inverse always shows white text */
.text-text-inverse {
  color: var(--color-text-inverse) !important;
}

/* ============================================
   CARDS - Premium Glass Effect
   ============================================ */

.bg-bg-primary {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.bg-bg-primary:hover {
  box-shadow: var(--shadow-md);
}

/* Card hover lift effect */
.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Glass effect utility class */
.glass {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: var(--shadow-lg);
}

/* Premium card variant */
.card-premium {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.card-premium:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-2px);
}

/* ============================================
   KPI CARDS - Dashboard Statistics
   ============================================ */

.kpi-card {
  position: relative;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: 1rem;
  transition: all var(--transition-base);
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--kpi-indicator-color, var(--color-accent));
  border-radius: var(--radius-xl) 0 0 var(--radius-xl);
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.kpi-card--urgent {
  --kpi-indicator-color: var(--color-error);
}

.kpi-card--warning {
  --kpi-indicator-color: var(--color-warning);
}

.kpi-card--info {
  --kpi-indicator-color: var(--color-info);
}

.kpi-card--success {
  --kpi-indicator-color: var(--color-success);
}

.kpi-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1;
}

.kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.875rem;
  font-weight: 500;
}

.kpi-trend--up {
  color: var(--color-success-text);
}

.kpi-trend--down {
  color: var(--color-error-text);
}

/* ============================================
   TABLES
   ============================================ */

table {
  border-color: var(--color-border-primary);
}

thead {
  background-color: var(--color-bg-tertiary);
}

tbody tr {
  transition: background-color var(--transition-fast);
}

tbody tr:hover {
  background-color: var(--color-bg-hover);
}

/* ============================================
   COLLAPSIBLE SECTIONS
   ============================================ */

.collapsible-section {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}

.collapsible-section:hover {
  box-shadow: var(--shadow-md);
}

.collapsible-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition-fast);
}

.collapsible-header:hover {
  background-color: var(--color-bg-hover);
}

.collapsible-content {
  overflow: hidden;
  transition: max-height var(--transition-slow), opacity var(--transition-base);
}

.collapsible-content[data-collapsed="true"] {
  max-height: 0;
  opacity: 0;
}

.collapsible-content[data-collapsed="false"] {
  opacity: 1;
}

.collapsible-icon {
  transition: transform var(--transition-base);
}

.collapsible-icon[data-expanded="true"] {
  transform: rotate(180deg);
}

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

.bg-secondary {
  background-color: var(--color-bg-secondary);
}

.text-primary {
  color: var(--color-text-primary);
}

.text-secondary {
  color: var(--color-text-secondary);
}

.border-primary {
  border-color: var(--color-border-primary);
}

/* Accent utilities */
.text-accent {
  color: var(--color-accent);
}

.border-accent {
  border-color: var(--color-accent);
}

/* Premium spacing utilities */
.section-spacing {
  margin-bottom: 1.5rem;
}

@media (min-width: 1024px) {
  .section-spacing {
    margin-bottom: 2rem;
  }
}

/* ============================================
   QUICK ACTION CARDS
   ============================================ */

.quick-action-card {
  position: relative;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: 1rem;
  transition: all var(--transition-base);
  cursor: pointer;
}

.quick-action-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.quick-action-card--primary {
  border-color: var(--color-accent);
  background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-tertiary) 100%);
}

[data-theme="dark"] .quick-action-card--primary {
  background: var(--color-primary-soft);
}

.keyboard-hint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.5rem;
  height: 1.5rem;
  padding: 0 0.375rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-sm);
  color: var(--color-text-tertiary);
}

/* ============================================
   CHART CONTAINERS
   ============================================ */

.chart-container {
  position: relative;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-xl);
  padding: 1rem;
}

.chart-export-menu {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
}

/* ============================================
   EXPORT DROPDOWN
   ============================================ */

.export-dropdown {
  position: relative;
  display: inline-block;
}

.export-dropdown-content {
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 0.5rem;
  min-width: 10rem;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 50;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
}

.export-dropdown[data-open="true"] .export-dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.export-dropdown-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast);
}

.export-dropdown-item:hover {
  background-color: var(--color-bg-hover);
}

.export-dropdown-item:first-child {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.export-dropdown-item:last-child {
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

/* ============================================
   DARK THEME ADJUSTMENTS
   ============================================ */

[data-theme="dark"] {
  /* Compact table cells */
  & table td,
  & table th {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }

  /* Compact form inputs */
  & input[type="text"],
  & input[type="email"],
  & input[type="password"],
  & input[type="number"],
  & input[type="date"],
  & input[type="datetime-local"],
  & textarea,
  & select {
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
  }

  /* Tighter line height */
  & .prose {
    line-height: 1.6;
  }

  /* Accent glow effects */
  & .kpi-card:hover {
    box-shadow: var(--shadow-xl);
  }

  & .quick-action-card:hover {
    box-shadow: var(--shadow-lg);
  }
}

/* ============================================
   APP SHELL
   Sidebar width comes from one variable. The sidebar controller on <body>
   switches .sidebar-collapsed (desktop) and .sidebar-open (phones).
   ============================================ */

:root {
  --sidebar-w: 232px;
  --header-h: 56px;
}

body.sidebar-collapsed {
  --sidebar-w: 60px;
}

.app-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 40;
  width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  background: var(--color-bg-primary);
  border-right: 1px solid var(--color-border-primary);
  transition: width var(--transition-base), transform var(--transition-base);
}

.app-sidebar-overlay {
  display: none;
}

.app-main {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-base);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-primary);
}

.app-content {
  flex: 1;
  padding: 20px 24px 32px;
  min-width: 0;
}

@media (min-width: 1024px) {
  .app-main {
    margin-left: var(--sidebar-w);
  }

  /* Collapsed: icons only. Labels, counts and the entity name hide; the logo keeps its mark. */
  body.sidebar-collapsed .app-sidebar [data-sidebar-label],
  body.sidebar-collapsed .app-sidebar .app-sidebar-home {
    display: none;
  }

  body.sidebar-collapsed .app-sidebar .app-sidebar-collapse svg {
    transform: rotate(180deg);
  }

  body.sidebar-collapsed .app-sidebar nav a,
  body.sidebar-collapsed .app-sidebar a,
  body.sidebar-collapsed .app-sidebar button {
    justify-content: center;
  }
}

@media (max-width: 1023px) {
  .app-sidebar {
    width: 272px;
    transform: translateX(-100%);
  }

  body.sidebar-open .app-sidebar {
    transform: none;
    box-shadow: var(--shadow-xl);
  }

  body.sidebar-open .app-sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 35;
    background: rgba(17, 19, 23, 0.45);
  }

  .app-header,
  .app-content {
    padding-left: 16px;
    padding-right: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .app-sidebar,
  .app-main {
    transition: none;
  }
}