/* ═══════════════════════════════════════════════════════════════════
   TIA UI Enhancement Layer — Professional Design System
   ═══════════════════════════════════════════════════════════════════
   
   This file adds a refined design system on top of the existing styles.
   It uses CSS custom properties and carefully scoped selectors to enhance
   visual quality without breaking existing functionality.
   
   Load order: styles.css → styles-enhanced.css (this file)
   
   ═══════════════════════════════════════════════════════════════════ */

/* ────────────────────────────────────────────────────────────────
   1. ENHANCED DESIGN TOKENS
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-tokens {
  :root {
    /* Refined Color Palette */
    --enh-bg: #f8fafc;
    --enh-bg-elevated: #ffffff;
    --enh-bg-surface: rgba(255, 255, 255, 0.72);
    --enh-ink: #0f172a;
    --enh-ink-secondary: #475569;
    --enh-ink-muted: #64748b;
    --enh-ink-tertiary: #94a3b8;
    
    /* Brand Colors — refined from existing teal */
    --enh-brand: #0d7377;
    --enh-brand-light: #14a3a8;
    --enh-brand-dark: #095a5e;
    --enh-brand-soft: rgba(13, 115, 119, 0.08);
    --enh-brand-medium: rgba(13, 115, 119, 0.16);
    --enh-brand-focus: rgba(13, 115, 119, 0.18);
    --enh-brand-glow: rgba(13, 115, 119, 0.24);
    
    /* Accent Colors */
    --enh-accent-amber: #f59e0b;
    --enh-accent-coral: #f97316;
    --enh-accent-rose: #e11d48;
    --enh-accent-indigo: #6366f1;
    --enh-accent-emerald: #10b981;
    --enh-accent-sky: #0ea5e9;
    
    /* Semantic Colors */
    --enh-success: #10b981;
    --enh-success-soft: rgba(16, 185, 129, 0.12);
    --enh-warning: #f59e0b;
    --enh-warning-soft: rgba(245, 158, 11, 0.12);
    --enh-danger: #ef4444;
    --enh-danger-soft: rgba(239, 68, 68, 0.12);
    --enh-info: #3b82f6;
    --enh-info-soft: rgba(59, 130, 246, 0.12);
    
    /* Border & Divider */
    --enh-border: #e2e8f0;
    --enh-border-light: #f1f5f9;
    --enh-border-hover: #cbd5e1;
    --enh-border-focus: #0d7377;
    
    /* Shadow System — refined elevation */
    --enh-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --enh-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --enh-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --enh-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
    --enh-shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);
    --enh-shadow-2xl: 0 25px 50px -12px rgba(15, 23, 42, 0.18);
    --enh-shadow-inner: inset 0 2px 4px rgba(15, 23, 42, 0.04);
    --enh-shadow-brand: 0 4px 14px rgba(13, 115, 119, 0.25);
    --enh-shadow-brand-lg: 0 8px 24px rgba(13, 115, 119, 0.30);
    
    /* Border Radius System */
    --enh-radius-sm: 6px;
    --enh-radius-md: 10px;
    --enh-radius-lg: 14px;
    --enh-radius-xl: 18px;
    --enh-radius-2xl: 22px;
    --enh-radius-pill: 9999px;
    
    /* Spacing Scale */
    --enh-space-1: 4px;
    --enh-space-2: 8px;
    --enh-space-3: 12px;
    --enh-space-4: 16px;
    --enh-space-5: 20px;
    --enh-space-6: 24px;
    --enh-space-8: 32px;
    --enh-space-10: 40px;
    --enh-space-12: 48px;
    
    /* Typography Scale */
    --enh-text-xs: 0.75rem;
    --enh-text-sm: 0.875rem;
    --enh-text-base: 0.95rem;
    --enh-text-lg: 1.0625rem;
    --enh-text-xl: 1.25rem;
    --enh-text-2xl: 1.5rem;
    --enh-text-3xl: 1.875rem;
    --enh-text-4xl: 2.25rem;
    
    /* Transition Timing */
    --enh-transition-fast: 0.12s cubic-bezier(0.4, 0, 0.2, 1);
    --enh-transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --enh-transition-slow: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --enh-transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* Glass Effect */
    --enh-glass-bg: rgba(255, 255, 255, 0.72);
    --enh-glass-border: rgba(255, 255, 255, 0.24);
    --enh-glass-backdrop: blur(20px) saturate(1.8);
    --enh-glass-backdrop-strong: blur(40px) saturate(2);
  }
}

/* ────────────────────────────────────────────────────────────────
   2. GLOBAL BASE ENHANCEMENTS
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-base {
  html {
    scroll-behavior: smooth;
  }
  
  /* Custom Scrollbar — refined for WebKit */
  ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
  }
  ::-webkit-scrollbar-track {
    background: transparent;
  }
  ::-webkit-scrollbar-thumb {
    background: var(--enh-ink-tertiary);
    border-radius: var(--enh-radius-pill);
    border: 2px solid transparent;
    background-clip: padding-box;
  }
  ::-webkit-scrollbar-thumb:hover {
    background: var(--enh-ink-muted);
  }
  
  /* Firefox scrollbar */
  * {
    scrollbar-width: thin;
    scrollbar-color: var(--enh-ink-tertiary) transparent;
  }
  
  /* Selection color */
  ::selection {
    background: var(--enh-brand-soft);
    color: var(--enh-brand-dark);
  }
}

/* ────────────────────────────────────────────────────────────────
   3. LOADING OVERLAY — Refined & Glassmorphism
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-loading {
  .loading-overlay {
    background: 
      radial-gradient(circle at 15% 8%, rgba(13, 115, 119, 0.10) 0%, transparent 40%),
      radial-gradient(circle at 85% 92%, rgba(9, 90, 94, 0.08) 0%, transparent 48%),
      linear-gradient(180deg, rgba(248, 250, 252, 0.96) 0%, rgba(241, 245, 249, 0.96) 100%);
    backdrop-filter: blur(12px);
  }
  
  .loading-shell {
    border: 1px solid rgba(13, 115, 119, 0.12);
    background: linear-gradient(
      180deg, 
      rgba(255, 255, 255, 0.88) 0%, 
      rgba(245, 250, 251, 0.90) 100%
    );
    box-shadow: 
      0 32px 64px rgba(9, 30, 32, 0.16),
      0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    border-radius: var(--enh-radius-2xl);
  }
  
  .loading-card {
    border: 1px solid rgba(13, 115, 119, 0.10);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbfc 100%);
    box-shadow: var(--enh-shadow-lg);
    border-radius: var(--enh-radius-xl);
    transition: transform var(--enh-transition-base), box-shadow var(--enh-transition-base);
  }
  .loading-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--enh-shadow-xl);
  }
  
  .loading-spinner-ring {
    border: 4px solid var(--enh-border-light);
    border-top-color: var(--enh-brand);
    box-shadow: 0 0 12px rgba(13, 115, 119, 0.15);
  }
  
  .loading-progress-fill {
    background: linear-gradient(90deg, var(--enh-brand) 0%, var(--enh-brand-light) 50%, var(--enh-brand) 100%);
    background-size: 200% 100%;
    box-shadow: 0 0 8px rgba(13, 115, 119, 0.3);
  }
  
  .loading-text {
    background: linear-gradient(135deg, var(--enh-brand) 0%, var(--enh-brand-light) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
    letter-spacing: -0.02em;
  }
  
  .loading-detail-text {
    color: var(--enh-ink-muted);
  }
  
  .loading-fact-card {
    border: 1px solid rgba(13, 115, 119, 0.08);
    background: linear-gradient(180deg, rgba(255,255,255,0.9) 0%, rgba(245,250,251,0.9) 100%);
    border-radius: var(--enh-radius-lg);
    box-shadow: var(--enh-shadow-sm);
    transition: all var(--enh-transition-base);
  }
  .loading-fact-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--enh-shadow-md);
    border-color: rgba(13, 115, 119, 0.16);
  }
}

/* ────────────────────────────────────────────────────────────────
   4. NAVBAR — Glassmorphism & Refined
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-navbar {
  .navbar {
    background: linear-gradient(135deg, 
      rgba(2, 13, 15, 0.92) 0%, 
      rgba(7, 28, 32, 0.94) 55%, 
      rgba(4, 20, 24, 0.92) 100%
    );
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--enh-radius-xl);
    box-shadow: 
      0 8px 32px rgba(2, 10, 12, 0.50), 
      0 1px 0 rgba(255, 255, 255, 0.06) inset,
      0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  }
  
  .navbar::after {
    background: linear-gradient(90deg, 
      transparent 0%, 
      rgba(255, 255, 255, 0.08) 50%, 
      transparent 100%
    );
  }
  
  .navbar-brand {
    border-right: 1px solid rgba(255, 255, 255, 0.10);
  }
  
  .navbar-brand img {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: transform var(--enh-transition-fast);
  }
  .navbar-brand img:hover {
    transform: scale(1.04);
  }
  
  .navbar h1 {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.01em;
  }
  
  .navbar-user-greeting {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 600;
  }
  
  .navbar .tier-badge {
    background: linear-gradient(135deg, var(--enh-brand) 0%, var(--enh-brand-dark) 100%);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 2px 8px rgba(13, 115, 119, 0.3);
    font-weight: 700;
    letter-spacing: 0.05em;
  }
  
  /* Nav buttons — glass effect */
  .home-button,
  .contact-dev-button,
  .logout-button {
    transition: all var(--enh-transition-base);
    border-radius: var(--enh-radius-md);
  }
  
  .home-button,
  .contact-dev-button {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: rgba(255, 255, 255, 0.9);
  }
  .home-button:hover,
  .contact-dev-button:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  }
  
  .logout-button {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: rgba(255, 200, 200, 0.95);
  }
  .logout-button:hover {
    background: rgba(239, 68, 68, 0.18);
    border-color: rgba(239, 68, 68, 0.35);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
  }
}

/* ────────────────────────────────────────────────────────────────
   5. MAIN CONTAINER — Refined Cards & Depth
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-container {
  .container {
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-2xl);
    box-shadow: var(--enh-shadow-lg);
    transition: box-shadow var(--enh-transition-slow);
  }
  .container:hover {
    box-shadow: var(--enh-shadow-xl);
  }
  
  .container::before {
    background: linear-gradient(180deg, 
      rgba(13, 115, 119, 0.03) 0%, 
      transparent 100%
    );
  }
  
  .app-shell {
    gap: var(--enh-space-4);
  }
  
  .app-header {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--enh-border-light);
    border-radius: var(--enh-radius-lg);
    box-shadow: var(--enh-shadow-sm);
  }
  
  .app-footer {
    border-top: 1px solid var(--enh-border-light);
  }
}

/* ────────────────────────────────────────────────────────────────
   6. CARDS — Professional Elevation & Interactions
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-cards {
  .card {
    background: var(--enh-bg-elevated);
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-lg);
    box-shadow: var(--enh-shadow-sm);
    transition: all var(--enh-transition-base);
    position: relative;
    overflow: hidden;
  }
  
  .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--enh-brand) 0%, var(--enh-brand-light) 100%);
    opacity: 0;
    transition: opacity var(--enh-transition-base);
  }
  
  .card:hover {
    transform: translateY(-3px);
    box-shadow: var(--enh-shadow-lg);
    border-color: var(--enh-border-hover);
  }
  .card:hover::before {
    opacity: 1;
  }
  
  .card h2 {
    color: var(--enh-brand-dark);
    font-weight: 700;
    letter-spacing: -0.01em;
    border-bottom: 2px solid var(--enh-border-light);
    padding-bottom: var(--enh-space-2);
  }
  
  .card h3 {
    color: var(--enh-ink-secondary);
    font-weight: 600;
  }
  
  .detour-card {
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-lg);
    box-shadow: var(--enh-shadow-sm);
    transition: all var(--enh-transition-base);
    background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
  }
  .detour-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--enh-shadow-lg);
    border-color: var(--enh-brand);
  }
  
  .kpi-tile {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-md);
    box-shadow: var(--enh-shadow-xs);
    transition: all var(--enh-transition-base);
  }
  .kpi-tile:hover {
    transform: translateY(-2px);
    box-shadow: var(--enh-shadow-md);
    border-color: var(--enh-border-hover);
  }
  
  .grid > div,
  .grid-2 > div {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-md);
    box-shadow: var(--enh-shadow-xs);
    transition: all var(--enh-transition-base);
  }
  .grid > div:hover,
  .grid-2 > div:hover {
    transform: translateY(-1px);
    box-shadow: var(--enh-shadow-sm);
    border-color: var(--enh-border-hover);
  }
}

/* ────────────────────────────────────────────────────────────────
   7. FORMS & INPUTS — Refined Aesthetics
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-forms {
  input[type="text"],
  input[type="number"],
  input[type="email"],
  input[type="password"],
  select,
  textarea {
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-md);
    background: linear-gradient(180deg, #ffffff 0%, #fdfefe 100%);
    box-shadow: var(--enh-shadow-inner);
    transition: all var(--enh-transition-base);
    color: var(--enh-ink);
  }
  
  input[type="text"]:hover,
  input[type="number"]:hover,
  input[type="email"]:hover,
  input[type="password"]:hover,
  select:hover,
  textarea:hover {
    border-color: var(--enh-border-hover);
    box-shadow: var(--enh-shadow-sm), var(--enh-shadow-inner);
  }
  
  input[type="text"]:focus,
  input[type="number"]:focus,
  input[type="email"]:focus,
  input[type="password"]:focus,
  select:focus,
  textarea:focus {
    border-color: var(--enh-brand);
    background: #ffffff;
    box-shadow: 0 0 0 3px var(--enh-brand-focus), 0 4px 12px var(--enh-brand-glow);
    outline: none;
  }
  
  input[type="text"]:read-only,
  input[type="number"]:read-only,
  select:disabled,
  textarea:read-only {
    background: #f8fafc;
    border-color: var(--enh-border-light);
    color: var(--enh-ink-muted);
  }
  
  .unit-tag {
    color: var(--enh-ink-tertiary);
    font-weight: 600;
    font-size: var(--enh-text-sm);
  }
  
  /* Color-coded input states */
  .input-group-user-input:focus-within input {
    border-left: 3px solid var(--enh-brand) !important;
  }
  .input-group-auto-input:focus-within input {
    border-left: 3px solid var(--enh-danger) !important;
  }
  
  /* Range slider */
  input[type="range"] {
    accent-color: var(--enh-brand);
  }
  
  /* Checkbox / Radio */
  input[type="checkbox"],
  input[type="radio"] {
    accent-color: var(--enh-brand);
  }
}

/* ────────────────────────────────────────────────────────────────
   8. BUTTONS — Refined Interactions & Depth
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-buttons {
  button,
  .btn {
    background: linear-gradient(135deg, var(--enh-brand) 0%, var(--enh-brand-dark) 100%);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--enh-radius-md);
    box-shadow: 
      0 4px 12px rgba(13, 115, 119, 0.25), 
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
    font-weight: 700;
    letter-spacing: 0.02em;
    transition: all var(--enh-transition-fast);
    position: relative;
    overflow: hidden;
  }
  
  button::after,
  .btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.5s ease;
  }
  
  button:hover,
  .btn:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow: var(--enh-shadow-brand-lg);
  }
  button:hover::after,
  .btn:hover::after {
    left: 100%;
  }
  
  button:active,
  .btn:active {
    transform: translateY(0);
    filter: brightness(0.97);
    box-shadow: var(--enh-shadow-brand);
  }
  
  button:disabled,
  .btn:disabled {
    opacity: 0.6;
    filter: grayscale(0.2);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
  }
  
  /* Snapshot buttons */
  .snapshot-btn {
    border-radius: var(--enh-radius-pill);
    box-shadow: var(--enh-shadow-md);
    transition: all var(--enh-transition-base);
  }
  .snapshot-btn:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--enh-shadow-lg);
  }
  .snapshot-btn:active {
    transform: translateY(0) scale(0.98);
  }
  
  /* Report mode buttons */
  .report-mode-btn {
    border-radius: var(--enh-radius-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all var(--enh-transition-fast);
    font-weight: 700;
  }
  .report-mode-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    filter: brightness(1.06);
  }
  .report-mode-btn:active {
    transform: translateY(0);
  }
}

/* ────────────────────────────────────────────────────────────────
   9. REPORT MODE BARS — Refined Glassmorphism
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-report-mode {
  #reportModeBar {
    background: linear-gradient(135deg, 
      rgba(13, 115, 119, 0.95) 0%, 
      rgba(9, 90, 94, 0.97) 100%
    );
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  }
  
  #reportModeBottomBar {
    background: linear-gradient(135deg, 
      rgba(9, 90, 94, 0.95) 0%, 
      rgba(13, 115, 119, 0.97) 100%
    );
    backdrop-filter: blur(16px) saturate(1.5);
    -webkit-backdrop-filter: blur(16px) saturate(1.5);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
  }
  
  .report-mode-intro-text {
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  }
  
  .report-mode-close-btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
    transition: all var(--enh-transition-fast);
  }
  .report-mode-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-1px);
  }
}

/* ────────────────────────────────────────────────────────────────
   10. MAP — Refined Leaflet Styling
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-map {
  #macroMap,
  #detourMap {
    border: 2px solid var(--enh-brand);
    border-radius: var(--enh-radius-md);
    box-shadow: var(--enh-shadow-md);
    transition: box-shadow var(--enh-transition-base);
  }
  #macroMap:hover,
  #detourMap:hover {
    box-shadow: var(--enh-shadow-lg);
  }
  
  .leaflet-control-zoom a {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(8px);
    border-radius: var(--enh-radius-sm) !important;
    box-shadow: var(--enh-shadow-sm) !important;
    transition: all var(--enh-transition-fast);
  }
  .leaflet-control-zoom a:hover {
    background: rgba(255, 255, 255, 1) !important;
    box-shadow: var(--enh-shadow-md) !important;
  }
  
  .leaflet-control-map-fullscreen {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(8px);
    border-radius: var(--enh-radius-sm) !important;
    box-shadow: var(--enh-shadow-sm) !important;
  }
}

/* ────────────────────────────────────────────────────────────────
   11. DETAILS / ACCORDION — Refined
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-details {
  details.card > summary {
    background: linear-gradient(180deg, #ffffff 0%, #f7faf9 100%);
    border: 1px solid var(--enh-border);
    border-radius: var(--enh-radius-md);
    transition: all var(--enh-transition-base);
  }
  details.card > summary:hover {
    background: linear-gradient(180deg, #f3f9fa 0%, #eaf4f5 100%);
    border-color: var(--enh-brand);
  }
  details.card > summary::after {
    transition: transform var(--enh-transition-slow);
  }
  details[open].card > summary::after {
    transform: rotate(135deg);
  }
  details.card > summary + div {
    animation: slideDown 0.3s ease-out;
  }
  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
  }
}

/* ────────────────────────────────────────────────────────────────
   12. TABLES — Refined
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-tables {
  table {
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--enh-radius-md);
    overflow: hidden;
    box-shadow: var(--enh-shadow-sm);
  }
  
  th {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--enh-ink-secondary);
    font-weight: 700;
    text-transform: uppercase;
    font-size: var(--enh-text-xs);
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--enh-border);
  }
  
  td {
    border-bottom: 1px solid var(--enh-border-light);
    transition: background var(--enh-transition-fast);
  }
  tr:hover td {
    background: rgba(13, 115, 119, 0.03);
  }
  
  tr:last-child td {
    border-bottom: none;
  }
}

/* ────────────────────────────────────────────────────────────────
   13. COPYRIGHT / FOOTER — Refined
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-footer {
  .copyright-footer {
    color: var(--enh-ink-muted);
    font-size: var(--enh-text-sm);
    letter-spacing: 0.02em;
    padding: var(--enh-space-4) 0 var(--enh-space-5);
  }
  .copyright-footer a {
    color: var(--enh-brand);
    text-decoration: none;
    transition: color var(--enh-transition-fast);
  }
  .copyright-footer a:hover {
    color: var(--enh-brand-light);
    text-decoration: underline;
  }
}

/* ────────────────────────────────────────────────────────────────
   14. LOADING ANIMATION — Enhanced Spinner
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-animations {
  .loading-spinner-ring {
    width: 52px;
    height: 52px;
    border: 4px solid var(--enh-border-light);
    border-top-color: var(--enh-brand);
    border-right-color: var(--enh-brand-light);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    box-shadow: 0 0 16px rgba(13, 115, 119, 0.2);
  }
  
  @keyframes spin {
    to { transform: rotate(360deg); }
  }
  
  .loading-progress-bar {
    background: var(--enh-border-light);
    border-radius: var(--enh-radius-pill);
    overflow: hidden;
    box-shadow: var(--enh-shadow-inner);
  }
  .loading-progress-fill {
    background: linear-gradient(90deg, var(--enh-brand) 0%, var(--enh-brand-light) 100%);
    border-radius: var(--enh-radius-pill);
    box-shadow: 0 0 12px rgba(13, 115, 119, 0.4);
    transition: width 0.3s ease;
  }
  
  /* Fade-in for loaded content */
  .fade-in-loaded {
    animation: fadeInLoaded 0.5s ease-out;
  }
  @keyframes fadeInLoaded {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
  }
  
  /* Subtle pulse for attention elements */
  .pulse-attention {
    animation: pulseAttention 2s ease-in-out infinite;
  }
  @keyframes pulseAttention {
    0%, 100% { box-shadow: 0 0 0 0 rgba(13, 115, 119, 0.2); }
    50% { box-shadow: 0 0 0 8px rgba(13, 115, 119, 0); }
  }
}

/* ────────────────────────────────────────────────────────────────
   15. ACCESSIBILITY & FOCUS — Enhanced
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-a11y {
  *:focus-visible {
    outline: 2px solid var(--enh-brand);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--enh-brand-focus);
  }
  
  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }
  
  @media (prefers-contrast: more) {
    .card,
    .detour-card,
    .kpi-tile {
      border-width: 2px;
    }
    input,
    select,
    textarea,
    button {
      border-width: 2px;
    }
  }
}

/* ────────────────────────────────────────────────────────────────
   16. MOBILE RESPONSIVE — Enhanced Touch
   ──────────────────────────────────────────────────────────────── */

@layer enhanced-mobile {
  @media (max-width: 768px) {
    .card {
      border-radius: var(--enh-radius-md);
      padding: var(--enh-space-4);
    }
    
    .navbar {
      border-radius: var(--enh-radius-lg);
    }
    
    .container {
      border-radius: var(--enh-radius-lg);
      padding: var(--enh-space-4);
    }
    
    button,
    .btn,
    .report-mode-btn {
      min-height: 48px;
      padding: 12px 16px;
    }
    
    input,
    select,
    textarea {
      font-size: 16px; /* Prevent iOS zoom */
      padding: 12px 14px;
      min-height: 48px;
    }
  }
  
  @media (hover: none) and (pointer: coarse) {
    .card:hover,
    .detour-card:hover,
    .kpi-tile:hover {
      transform: none; /* Disable hover lift on touch devices */
    }
    .card:active,
    .detour-card:active,
    .kpi-tile:active {
      transform: scale(0.98);
    }
  }
}

/* ═══════════════════════════════════════════════════════════════════
   END OF TIA UI ENHANCEMENT LAYER
   ═══════════════════════════════════════════════════════════════════ */