/* ========================================
   UNIFY.PRO — Design System
   Brand Identity + CSS Reset + Tokens
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Brand Colors (from Charte Graphique) */
  --dark-navy: #242A37;
  --sage-green: #8EA093;
  --terracotta: #cc765b;
  --off-white: #f2eeed;

  /* Semantic Colors - Light Theme */
  --primary: var(--dark-navy);
  --on-primary: #FFFFFF;
  --primary-container: #E5E9F0;
  --on-primary-container: var(--dark-navy);

  --secondary: var(--sage-green);
  --on-secondary: #FFFFFF;
  --secondary-container: #E8EDE9;
  --on-secondary-container: #1A2B1F;

  --tertiary: var(--terracotta);
  --on-tertiary: #FFFFFF;
  --tertiary-container: #F9E8E2;
  --on-tertiary-container: #3D1E10;

  --background: var(--off-white);
  --on-background: var(--dark-navy);
  --surface: #FFFFFF;
  --on-surface: var(--dark-navy);
  --surface-variant: #E5E2E0;
  --on-surface-variant: #49454E;

  --error: #BA1A1A;
  --on-error: #FFFFFF;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(36,42,55,0.06), 0 1px 2px rgba(36,42,55,0.04);
  --shadow-md: 0 4px 12px rgba(36,42,55,0.08), 0 2px 4px rgba(36,42,55,0.04);
  --shadow-lg: 0 8px 24px rgba(36,42,55,0.12), 0 4px 8px rgba(36,42,55,0.06);
  --shadow-xl: 0 16px 48px rgba(36,42,55,0.16), 0 8px 16px rgba(36,42,55,0.08);

  /* Typography Scale (matching Android Type.kt) */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --display-large: 700 32px/40px var(--font-family);
  --display-medium: 700 28px/36px var(--font-family);
  --headline-large: 700 28px/36px var(--font-family);
  --headline-medium: 600 24px/32px var(--font-family);
  --title-large: 600 20px/28px var(--font-family);
  --title-medium: 600 16px/24px var(--font-family);
  --body-large: 400 16px/24px var(--font-family);
  --body-medium: 400 14px/20px var(--font-family);
  --body-small: 400 12px/16px var(--font-family);
  --label-large: 600 14px/20px var(--font-family);
  --label-medium: 600 12px/16px var(--font-family);
  --label-small: 400 11px/16px var(--font-family);

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

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

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

  /* Font scale multiplier (for accessibility) */
  --font-scale: 1;
}

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

html {
  font-size: calc(16px * var(--font-scale));
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 14px;
  line-height: 20px;
  color: var(--on-background);
  background-color: var(--background);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
}

img, video, svg {
  display: block;
  max-width: 100%;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
  color: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

a { color: inherit; text-decoration: none; }

ul, ol { list-style: none; }

/* ---- Scrollbar Styling ---- */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-variant); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--secondary); }

/* ---- Keyframe Animations ---- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

@keyframes slideDown {
  from { transform: translateY(0); }
  to { transform: translateY(100%); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { transform: scale(0.4); opacity: 0.4; }
  50% { transform: scale(1); opacity: 1; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

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

@keyframes toastIn {
  from { transform: translateY(100px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes toastOut {
  from { transform: translateY(0); opacity: 1; }
  to { transform: translateY(100px); opacity: 0; }
}

/* ---- Utility Classes ---- */
.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-tertiary { color: var(--tertiary); }
.text-muted { color: var(--on-surface-variant); }
.text-error { color: var(--error); }
.text-white { color: #FFFFFF; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-normal { font-weight: 400; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }

/* ========================================
   UNIFY.PRO — Dark Theme Color Overrides
   ======================================== */
.dark-theme {
  --background: #191E28;
  --on-background: #F1EFEE;
  
  --surface: #202632;
  --on-surface: #F1EFEE;
  --surface-variant: #2A313E;
  --on-surface-variant: #C5C2C0;

  --primary: #ffffff;
  --on-primary: var(--dark-navy);
  --primary-container: #2A313E;
  --on-primary-container: #ffffff;

  --secondary: #A6B8AC;
  --on-secondary: #242A37;
  --secondary-container: #2E3832;
  --on-secondary-container: #E8EDE9;

  --tertiary: #E09077;
  --on-tertiary: #3D1E10;
  --tertiary-container: #4E2C1E;
  --on-tertiary-container: #F9E8E2;

  --shadow-sm: 0 4px 12px rgba(0,0,0,0.2);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.4);
}

/* Glassmorphism Styles */
.glass {
  background: rgba(255, 255, 255, 0.72) !important;
  backdrop-filter: blur(20px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(190%) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

.dark-theme .glass {
  background: rgba(32, 38, 50, 0.75) !important;
  backdrop-filter: blur(20px) saturate(190%) !important;
  -webkit-backdrop-filter: blur(20px) saturate(190%) !important;
  border: 1px solid rgba(255, 255, 255, 0.05) !important;
}

/* Page transitions */
body {
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

.card, .nav-item, .btn, .input-field, .select-field {
  transition: all var(--transition-fast) ease-in-out;
}

/* Micro-animations */
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.quick-action {
  transition: transform var(--transition-fast) ease-in-out;
}

.quick-action:hover {
  transform: translateY(-4px);
}

.quick-action:hover .quick-action-icon-inner {
  transform: scale(1.08);
}

.quick-action-icon-inner {
  transition: transform var(--transition-fast) ease-in-out;
}

/* Custom styles for inputs in dark mode */
.dark-theme input, .dark-theme textarea, .dark-theme select {
  background-color: var(--surface-variant) !important;
  border-color: rgba(255,255,255,0.1) !important;
}
.dark-theme input:focus, .dark-theme textarea:focus, .dark-theme select:focus {
  border-color: var(--secondary) !important;
}
.dark-theme select-field {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23C5C2C0' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E") !important;
}

.dark-theme .day-card {
  background: var(--surface-variant);
}
.dark-theme .day-card.selected {
  background: var(--secondary);
  color: var(--dark-navy);
}
.dark-theme .checkbox {
  border-color: rgba(255,255,255,0.3);
}
.dark-theme .checkbox.checked {
  background: var(--secondary);
  border-color: var(--secondary);
  color: var(--dark-navy);
}
.dark-theme .tab {
  color: var(--on-surface-variant);
}
.dark-theme .tab.active {
  color: var(--primary);
}
.dark-theme .tab.active::after {
  background: var(--primary);
}
.dark-theme .line-item-card {
  background: rgba(255, 255, 255, 0.05);
}
.dark-theme .chat-bubble.ai {
  background: var(--surface-variant);
}
.dark-theme .chat-bubble.user {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
}
.dark-theme .chat-input-bar {
  background: var(--surface-variant);
}
.dark-theme .chat-input-bar input {
  color: var(--on-surface) !important;
}
.dark-theme .chat-send-btn.active {
  background: var(--primary) !important;
  color: var(--on-primary) !important;
}
.dark-theme .spreadsheet-grid input {
  background: var(--surface) !important;
  color: var(--on-surface) !important;
  border-color: var(--surface-variant) !important;
}
.dark-theme .spreadsheet-grid input:focus {
  border-color: var(--secondary) !important;
}
.dark-theme .sheet-sum-cell {
  background: var(--secondary-container);
  color: var(--on-secondary-container);
  border-color: var(--secondary) !important;
}

/* Fix text contrast in dark mode */
.dark-theme .stat-card .stat-label,
.dark-theme .stat-card-prominent .stat-label {
  color: rgba(255, 255, 255, 0.6) !important;
}

.dark-theme .quick-action-label {
  color: rgba(255, 255, 255, 0.8) !important;
}

.dark-theme .dashboard-subtitle {
  color: var(--secondary) !important;
}

.dark-theme .accordion-header {
  color: var(--on-surface) !important;
}

.dark-theme .setting-item {
  color: var(--on-surface) !important;
  border-bottom: 1.5px solid rgba(255, 255, 255, 0.05) !important;
}

.dark-theme .setting-item:hover {
  background: rgba(255, 255, 255, 0.02) !important;
}

.dark-theme .setting-icon-box {
  background: rgba(255, 255, 255, 0.05) !important;
  color: var(--secondary) !important;
}

.dark-theme .setting-chevron {
  color: var(--on-surface-variant) !important;
}

.dark-theme .modal-title {
  color: var(--on-surface) !important;
}

.dark-theme .modal-header {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
}

.dark-theme .modal-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.05) !important;
}

/* Chat bubble contrast fixes in dark mode */
.dark-theme .chat-bubble.ai {
  background: var(--surface-variant) !important;
  color: var(--on-surface) !important;
}

.dark-theme .chat-escalate {
  border-top: 1px solid rgba(255, 255, 255, 0.1) !important;
  color: var(--secondary) !important;
}

.dark-theme .thinking-dot {
  background: var(--on-surface) !important;
}