/* ============================================
   MAP OCR Review Interface - Shared Styles
   High-Fidelity Prototype
   ============================================ */

/* Font Faces */
@font-face {
  font-family: 'Vijaya Devanagari';
  src: url('/fonts/VIJAYADV.TTF') format('truetype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* CSS Custom Properties - Design Tokens */
:root {
  /* Primary colors - from existing MAP design system */
  --color-primary: #8a6b2f;
  --color-primary-dark: #6d5424;
  --color-primary-light: #b8944a;
  --color-primary-bg: rgba(138, 107, 47, 0.08);

  /* Background colors */
  --color-bg: #fbfaf7;
  --color-bg-section: #f7f6f1;
  --color-bg-segment: #f1efe8;
  --color-bg-scholar: #faf8f3;
  --color-bg-white: #ffffff;

  /* Text colors */
  --color-text: #1f1f1f;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #6b6b6b;
  --color-text-inverse: #ffffff;

  /* Status colors */
  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-warning: #f57c00;
  --color-warning-bg: #fff3e0;
  --color-error: #c62828;
  --color-error-bg: #ffebee;
  --color-info: #1565c0;
  --color-info-bg: #e3f2fd;

  /* Veda-specific colors */
  --color-rigveda: #c0392b;
  --color-yajurveda: #27ae60;
  --color-samaveda: #2980b9;
  --color-atharvaveda: #8e44ad;

  /* OCR confidence colors */
  --color-confidence-high: #2e7d32;
  --color-confidence-medium: #f57c00;
  --color-confidence-low: #c62828;

  /* Section type colors */
  --color-section-mantra: #1565c0;
  --color-section-padapatha: #2e7d32;
  --color-section-commentary: #e65100;
  --color-section-header: #757575;

  /* Border and divider */
  --color-border: #c8c4b8;
  --color-border-light: #e0ddd4;
  --color-focus: #1565c0;

  /* Typography */
  --font-body: 'Noto Serif', Georgia, 'Times New Roman', serif;
  --font-ui: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-devanagari: 'Vijaya Devanagari', 'Noto Sans Devanagari', sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;

  /* Font sizes - responsive with clamp() */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.75rem + 0.3vw, 0.875rem);
  --text-base: clamp(0.9375rem, 0.875rem + 0.3vw, 1rem);
  --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.125rem);
  --text-xl: clamp(1.1875rem, 1.1rem + 0.4vw, 1.25rem);
  --text-2xl: clamp(1.375rem, 1.25rem + 0.6vw, 1.5rem);
  --text-3xl: clamp(1.625rem, 1.5rem + 0.6vw, 1.875rem);
  --text-devanagari: clamp(1.25rem, 1.1rem + 0.7vw, 1.5rem);
  --text-vedic: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;

  /* Z-index layers */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-tooltip: 400;
  --z-toast: 500;

  /* Minimum touch target (WCAG 2.1) */
  --touch-target-min: 44px;

  /* Focus ring */
  --focus-ring: 0 0 0 3px rgba(21, 101, 192, 0.4);
}

/* ============================================
   Reset and Base Styles
   ============================================ */

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

html {
  font-size: 100%; /* Respects user browser settings */
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

/* Support for user zoom preferences */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font-ui);
  font-size: var(--text-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ============================================
   Focus Styles (Accessibility)
   ============================================ */

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  box-shadow: var(--focus-ring);
}

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-3) var(--space-4);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  text-decoration: none;
  font-weight: 600;
  border-radius: var(--radius-md);
  z-index: var(--z-toast);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

p {
  margin-bottom: var(--space-4);
}

/* Devanagari / Sanskrit text */
.devanagari,
.sanskrit {
  font-family: var(--font-devanagari);
  font-size: var(--text-devanagari);
  line-height: 1.9;
}

.vedic {
  font-family: var(--font-devanagari);
  font-size: var(--text-vedic);
  line-height: 2.2;
}

/* ============================================
   Layout Components
   ============================================ */

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

.app-header {
  background: linear-gradient(135deg, var(--color-bg-section) 0%, var(--color-bg) 100%);
  border-bottom: 2px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.header-brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.header-logo {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.header-logo:hover {
  color: var(--color-primary-dark);
}

.header-tagline {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-style: italic;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.app-main {
  flex: 1;
  padding: var(--space-6);
}

.main-container {
  max-width: 1400px;
  margin: 0 auto;
}

.app-footer {
  background-color: var(--color-bg-section);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-6);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================
   Button Components
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-ui);
  font-size: var(--text-base);
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-primary-bg);
}

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

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-bg-segment);
  color: var(--color-primary);
}

.btn-success {
  background-color: var(--color-success);
  color: var(--color-text-inverse);
  border-color: var(--color-success);
}

.btn-danger {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
  border-color: var(--color-error);
}

.btn-sm {
  min-height: 36px;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
}

.btn-lg {
  min-height: 52px;
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.btn-icon {
  width: var(--touch-target-min);
  height: var(--touch-target-min);
  padding: 0;
  border-radius: var(--radius-full);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   Form Components
   ============================================ */

.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-ui);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-focus);
  box-shadow: var(--focus-ring);
}

.form-input::placeholder {
  color: var(--color-text-muted);
}

.form-input-devanagari {
  font-family: var(--font-devanagari);
  font-size: var(--text-devanagari);
}

/* Search input */
.search-input-wrapper {
  position: relative;
}

.search-input {
  padding-left: var(--space-10);
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
}

/* ============================================
   Card Components
   ============================================ */

.card {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-normal), transform var(--transition-normal);
}

.card-interactive {
  cursor: pointer;
}

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

.card-interactive:focus-within {
  box-shadow: var(--focus-ring);
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border-light);
  background-color: var(--color-bg-section);
}

.card-body {
  padding: var(--space-5);
}

.card-footer {
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--color-border-light);
  background-color: var(--color-bg-section);
}

/* ============================================
   Badge Components
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
}

.badge-primary {
  background-color: var(--color-primary-bg);
  color: var(--color-primary-dark);
}

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

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

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

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

/* Veda badges */
.badge-rigveda {
  background-color: rgba(192, 57, 43, 0.1);
  color: var(--color-rigveda);
}

.badge-yajurveda {
  background-color: rgba(39, 174, 96, 0.1);
  color: var(--color-yajurveda);
}

.badge-samaveda {
  background-color: rgba(41, 128, 185, 0.1);
  color: var(--color-samaveda);
}

.badge-atharvaveda {
  background-color: rgba(142, 68, 173, 0.1);
  color: var(--color-atharvaveda);
}

/* ============================================
   Progress Components
   ============================================ */

.progress-bar {
  height: 8px;
  background-color: var(--color-bg-segment);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

.progress-fill-primary {
  background-color: var(--color-primary);
}

.progress-fill-success {
  background-color: var(--color-success);
}

.progress-fill-rigveda {
  background-color: var(--color-rigveda);
}

.progress-fill-yajurveda {
  background-color: var(--color-yajurveda);
}

.progress-fill-samaveda {
  background-color: var(--color-samaveda);
}

.progress-fill-atharvaveda {
  background-color: var(--color-atharvaveda);
}

/* ============================================
   Table Components
   ============================================ */

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

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th,
.table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border-light);
}

.table th {
  background-color: var(--color-bg-section);
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.table th[aria-sort] {
  cursor: pointer;
  user-select: none;
}

.table th[aria-sort]:hover {
  background-color: var(--color-bg-segment);
}

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

.table-row-clickable {
  cursor: pointer;
}

.table-row-clickable:focus {
  outline: none;
  box-shadow: inset var(--focus-ring);
}

/* ============================================
   Tooltip Components
   ============================================ */

.tooltip {
  position: relative;
}

.tooltip-content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  background-color: var(--color-text);
  color: var(--color-text-inverse);
  font-size: var(--text-xs);
  white-space: nowrap;
  border-radius: var(--radius-sm);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: var(--z-tooltip);
  pointer-events: none;
}

.tooltip-content::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-text);
}

.tooltip:hover .tooltip-content,
.tooltip:focus-within .tooltip-content {
  opacity: 1;
  visibility: visible;
}

/* ============================================
   Breadcrumb Navigation
   ============================================ */

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.breadcrumb-link {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb-link:hover {
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-muted);
}

.breadcrumb-current {
  color: var(--color-text);
  font-weight: 500;
}

/* ============================================
   Keyboard Shortcut Display
   ============================================ */

.kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-secondary);
  background-color: var(--color-bg-section);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 0 var(--color-border);
}

/* ============================================
   Screen Reader Only
   ============================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================
   Utility Classes
   ============================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-muted); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-warning { color: var(--color-warning); }
.text-error { color: var(--color-error); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }

.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* ============================================
   Responsive Breakpoints
   ============================================ */

@media (max-width: 768px) {
  .app-header {
    padding: var(--space-3) var(--space-4);
  }

  .header-container {
    flex-direction: column;
    gap: var(--space-3);
  }

  .header-tagline {
    display: none;
  }

  .app-main {
    padding: var(--space-4);
  }
}

@media (max-width: 480px) {
  .btn {
    width: 100%;
  }

  .btn-group {
    flex-direction: column;
  }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
  .app-header,
  .app-footer,
  .btn,
  .no-print {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .card {
    border: 1px solid #ccc;
    box-shadow: none;
  }
}