/* =========================
   Filing System - "Bureau" Design System
   ========================= */

:root {
  --bur-bg: #f8fafc;
  --bur-surface: #ffffff;
  --bur-primary: #0f172a;
  --bur-accent: #3b82f6;
  --bur-error: #ef4444;
  --bur-border: #e2e8f0;
  --bur-radius: 12px;
  --bur-text: #334155;
}

.dark {
  --bur-bg: #020617;
  --bur-surface: #0f172a;
  --bur-primary: #ffffff;
  --bur-accent: #3b82f6; 
  --bur-error: #f87171;
  --bur-border: rgba(255, 255, 255, 0.1);
  --bur-text: #94a3b8;
  
  /* Enrich dark surfaces with deep indigo/slate gradients */
  --bur-surface-gradient: linear-gradient(145deg, #1e293b 0%, #020617 100%);
  --bur-glow: 0 0 15px rgba(59, 130, 246, 0.2);
}

/* Page Wrapper */
.bur-wrapper {
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

/* Header Sections */
.bur-header {
  margin-bottom: 3rem;
  text-align: center;
}

.bur-title {
  font-family: 'PT Serif', serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--bur-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.bur-subtitle {
  color: var(--bur-text);
  opacity: 0.7;
  font-size: 1.1rem;
}

/* Section Grouping (Fieldsets) */
.bur-section {
  background: var(--bur-surface);
  border: 1px solid var(--bur-border);
  border-radius: var(--bur-radius);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  transition: background 0.3s ease;
}

.dark .bur-section {
  background: var(--bur-surface-gradient, var(--bur-surface));
  box-shadow: var(--bur-glow);
}

.bur-section-title {
  font-size: 0.85rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--bur-accent);
  letter-spacing: 0.1em;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.bur-section-title span {
  flex: 1;
  height: 1px;
  background: var(--bur-border);
}

/* Form Layout */
.bur-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.bur-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.bur-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--bur-primary);
}

.bur-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--bur-border);
  background: var(--bur-bg);
  color: var(--bur-primary);
  font-size: 0.95rem;
  transition: all 0.2s;
  outline: none;
}

.bur-input:focus {
  border-color: var(--bur-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.bur-input:read-only {
  background: var(--bur-border);
  opacity: 0.8;
  cursor: not-allowed;
}

/* Dropdown Fix for Dark Mode */
.dark select.bur-input {
  background-color: var(--bur-bg);
  color: var(--bur-primary);
}

.dark select.bur-input option {
  background-color: var(--bur-surface);
  color: var(--bur-primary);
}

/* Navigation & Buttons */
.bur-nav {
  margin-bottom: 2rem;
}

.btn-bur {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 99px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-bur-primary, 
.btn-bur-primary:visited {
  background-color: #3b82f6 !important;
  color: #ffffff !important;
}

.btn-bur-primary:hover {
  background-color: #2563eb !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(59, 130, 246, 0.3);
}

.btn-bur-danger,
.btn-bur-danger:visited {
  background-color: #ef4444 !important;
  color: #ffffff !important;
}

.btn-bur-danger:hover {
  background-color: #dc2626 !important;
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(239, 68, 68, 0.3);
}

.btn-bur-ghost {
  background: transparent;
  color: var(--bur-text);
  border: 1px solid var(--bur-border);
}

.btn-bur-ghost:hover {
  background: var(--bur-bg);
  border-color: var(--bur-primary);
  color: var(--bur-primary);
}

/* Menu Grid (Index) */
.bur-menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.bur-menu-card {
  background: var(--bur-surface);
  border: 1px solid var(--bur-border);
  border-radius: var(--bur-radius);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--bur-primary);
  display: flex;
  flex-direction: column;
  transition: all 0.3s;
}

.dark .bur-menu-card {
  background: var(--bur-surface-gradient, var(--bur-surface));
}

.bur-menu-card:hover {
  border-color: var(--bur-accent);
  transform: scale(1.02);
  box-shadow: 0 10px 20px -5px rgba(0,0,0,0.05);
}

.bur-menu-icon {
  width: 40px;
  height: 40px;
  background: rgba(59, 130, 246, 0.1);
  color: var(--bur-accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.bur-menu-label {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.bur-menu-desc {
  font-size: 0.85rem;
  opacity: 0.7;
}

/* Resp */
@media (max-width: 640px) {
  .bur-section {
    padding: 1.5rem;
  }
}

.w-char {
  width: 3.2rem !important;
  flex: 0 0 3.2rem !important;
  padding: 0.75rem 0 !important;
  text-align: center !important;
  font-family: monospace !important;
  font-weight: 900 !important;
}

.bur-preview-box {
  margin-top: 2rem;
  padding: 1.5rem;
  background: #f1f5f9;
  border: 1px dashed var(--bur-border);
  border-radius: 8px;
}

.dark .bur-preview-box {
  background: rgba(0, 0, 0, 0.2);
}

.bur-preview-label {
  text-transform: uppercase;
  font-size: 0.7rem;
  font-weight: 900;
  color: #94a3b8;
  margin-bottom: 0.5rem;
  display: block;
}

.bur-preview-text {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--bur-primary);
  word-break: break-all;
}