/* ==========================================================================
   BOM / BOQ Studio Pro — Modern Professional Design System
   FastAPI Edition
   ========================================================================== */

:root {
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

  /* Colors */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;

  --secondary: #475569;
  --secondary-hover: #334155;
  --secondary-light: #f1f5f9;

  --success: #10b981;
  --success-hover: #059669;
  --success-light: #ecfdf5;

  --warning: #f59e0b;
  --warning-hover: #d97706;
  --warning-light: #fffbeb;

  --danger: #ef4444;
  --danger-hover: #dc2626;
  --danger-light: #fef2f2;

  --info: #06b6d4;
  --info-hover: #0891b2;
  --info-light: #ecfeff;

  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  --border: #e2e8f0;
  --border-focus: #3b82f6;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  --nav-height: 64px;
}

/* Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.5;
  font-size: 14px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.15s ease;
}
a:hover {
  color: var(--primary-hover);
}

/* ==========================================================================
   Navigation Bar
   ========================================================================== */
.main-navbar {
  height: var(--nav-height);
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 18px;
  font-weight: 700;
  color: #1e293b;
  text-decoration: none;
}

.nav-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-link:hover {
  color: var(--primary);
  background-color: var(--primary-light);
}
.nav-link.active {
  color: var(--primary);
  background-color: var(--primary-light);
  font-weight: 700;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-badge-capsule {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 13px;
}

.badge-role {
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  border-radius: var(--radius-full);
}
.badge-role.admin { background: #ede9fe; color: #6d28d9; }
.badge-role.department_admin { background: #dbeafe; color: #1d4ed8; }
.badge-role.user { background: #dcfce7; color: #15803d; }
.badge-role.guest { background: #f1f5f9; color: #64748b; }

.badge-dept {
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
  background: #fef3c7;
  color: #92400e;
  border-radius: var(--radius-full);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1.2;
}

.btn-primary {
  background-color: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background-color: var(--primary-hover);
  color: #fff;
}

.btn-success {
  background-color: var(--success);
  color: #fff;
  border-color: var(--success);
}
.btn-success:hover {
  background-color: var(--success-hover);
  color: #fff;
}

.btn-warning {
  background-color: var(--warning);
  color: #fff;
  border-color: var(--warning);
}
.btn-warning:hover {
  background-color: var(--warning-hover);
  color: #fff;
}

.btn-danger {
  background-color: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover {
  background-color: var(--danger-hover);
  color: #fff;
}

.btn-secondary {
  background-color: #fff;
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-secondary:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 15px;
}

/* ==========================================================================
   Main Content Layout
   ========================================================================== */
.main-wrapper {
  flex: 1;
  padding: 24px;
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}

.page-subtitle {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

/* Metric KPI Cards Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.metric-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.metric-icon-box {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.metric-icon-box.blue { background: #dbeafe; color: #2563eb; }
.metric-icon-box.amber { background: #fef3c7; color: #d97706; }
.metric-icon-box.purple { background: #ede9fe; color: #7c3aed; }
.metric-icon-box.green { background: #d1fae5; color: #059669; }
.metric-icon-box.cyan { background: #cffafe; color: #0891b2; }
.metric-icon-box.rose { background: #ffe4e6; color: #e11d48; }

.metric-info h4 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.5px;
}

.metric-number {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.1;
  margin-top: 4px;
}

/* Quick Action Tiles */
.quick-actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.action-tile {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-decoration: none;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}
.action-tile:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--primary);
}

.action-tile-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.action-tile-content h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 2px;
}

.action-tile-content p {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   Data Tables
   ========================================================================== */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  background: #fff;
  font-size: 13px;
}

table.data-table th {
  background: #f8fafc;
  color: var(--text-secondary);
  font-weight: 700;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

table.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

table.data-table tbody tr:hover {
  background-color: #f8fafc;
}

/* Status Badges */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.status-badge.saved { background: #e0f2fe; color: #0369a1; }
.status-badge.pending_price_edit { background: #fef3c7; color: #b45309; }
.status-badge.posted { background: #e0e7ff; color: #4338ca; }
.status-badge.approved { background: #dcfce7; color: #15803d; }
.status-badge.unposted { background: #fee2e2; color: #b91c1c; }
.status-badge.completed { background: #f1f5f9; color: #475569; }

/* Filter & Search Bar */
.search-filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.search-input-group {
  flex: 1;
  min-width: 250px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 10px 16px 10px 38px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  background: #fff;
}
.search-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
}

.select-filter {
  padding: 10px 14px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  outline: none;
}
.select-filter:focus {
  border-color: var(--border-focus);
}

/* Tabs */
.tab-nav {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
  overflow-x: auto;
}

.tab-btn {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.tab-btn:hover {
  color: var(--primary);
}
.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 700;
}

/* ==========================================================================
   Modals & Toasts
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalSlideIn 0.2s ease-out;
}

@keyframes modalSlideIn {
  from { transform: translateY(15px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
}
.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--bg-subtle);
}

/* Toast Container */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 12px 18px;
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 280px;
  max-width: 420px;
  font-size: 13px;
  font-weight: 500;
  animation: toastIn 0.25s ease-out;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

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

/* Form Controls */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  outline: none;
  background: #fff;
  color: var(--text-primary);
}
.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Footer */
.app-footer {
  margin-top: auto;
  background: #fff;
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .main-navbar {
    padding: 0 16px;
  }
  .nav-links {
    display: none; /* Can be toggled with mobile menu */
  }
  .main-wrapper {
    padding: 16px;
  }
}