@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/inter-regular.woff2') format('woff2');
}

:root {
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --primary-light: #60a5fa;
  --success: #10b981;
  --success-light: #34d399;
  --danger: #ef4444;
  --danger-light: #f87171;
  --warning: #f59e0b;
  --warning-light: #fbbf24;
  --purple: #8b5cf6;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --bg-navbar: #ffffff;
  --bg-input: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border-color: #cbd5e1;
  --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 -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);
  --radius: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }

body { 
  background-color: var(--bg-main); 
  background-image: 
    radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary); 
  font-size: 0.9rem; 
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, .navbar-brand, .fw-bold {
  font-weight: 600;
  letter-spacing: -0.01em;
}

.navbar {
  background-color: var(--bg-navbar) !important;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1rem;
}

.navbar-brand {
  color: var(--text-primary) !important;
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-tabs { 
  border-bottom: 2px solid var(--border-color); 
  gap: 0.5rem;
}
.nav-tabs .nav-link { 
  color: var(--text-secondary); 
  border: none; 
  font-weight: 500; 
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: all 0.2s ease;
  background: transparent;
}
.nav-tabs .nav-link:hover { 
  color: var(--primary);
  background: rgba(59, 130, 246, 0.05);
}
.nav-tabs .nav-link.active { 
  background-color: transparent !important; 
  color: var(--primary) !important; 
  border-bottom: 2px solid var(--primary) !important;
  font-weight: 600;
}

.card { 
  background: var(--bg-card) !important; 
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md); 
  border-radius: var(--radius); 
  overflow: hidden;
}

.choice-box {
  background: var(--bg-card) !important;
  border: 2px solid var(--border-color) !important;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.choice-box:hover { 
  transform: translateY(-4px); 
  box-shadow: var(--shadow-lg) !important; 
  border-color: var(--primary) !important; 
}

.table-wrapper { 
  max-height: 500px; 
  overflow-y: auto; 
  border: 1px solid var(--border-color); 
  border-radius: var(--radius-sm);
  background: var(--bg-card);
}

.sticky-header thead th, .table-dark th { 
  position: sticky; 
  top: 0; 
  background: var(--bg-card) !important; 
  z-index: 10; 
  border-bottom: 2px solid var(--border-color) !important;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary) !important;
  padding: 0.75rem;
}

.table-secondary th {
  background: var(--bg-input) !important;
  color: var(--text-primary) !important;
}

.table-primary th {
  background: rgba(59, 130, 246, 0.1) !important;
  color: var(--primary) !important;
}

.table-striped>tbody>tr:nth-of-type(odd)>* {
  background-color: var(--bg-main) !important;
}
.table-striped>tbody>tr:hover>* {
  background-color: rgba(59, 130, 246, 0.05) !important;
}

table.table { margin-bottom: 0; border-color: var(--border-color); color: var(--text-primary); }
table td { font-size: 0.85rem; vertical-align: middle; padding: 0.6rem 0.75rem; }

.form-control, .form-select, input[type="text"], input[type="number"], input[type="datetime-local"] {
  background-color: var(--bg-input) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-primary) !important;
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  transition: all 0.2s ease;
}
.form-control:focus {
  background-color: #fff !important;
  border-color: var(--primary) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
  outline: none;
}
.form-control::placeholder { color: var(--text-muted) !important; }
.form-control[readonly] { background-color: var(--bg-input) !important; opacity: 0.8; }

.customer-grid { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 8px; 
  background: var(--bg-input); 
  padding: 12px; 
  border-radius: var(--radius-sm); 
  border: 1px solid var(--border-color);
}
.form-check-label { font-size: 0.875rem; color: var(--text-primary); }

.loading-overlay { 
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; 
  background: rgba(255,255,255,0.9); 
  backdrop-filter: blur(4px);
  z-index: 9999; display: none; justify-content: center; align-items: center; 
}
.spinner-border { color: var(--primary) !important; }

.badge {
  font-weight: 600;
  padding: 0.35rem 0.6rem !important;
  border-radius: 6px;
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}
.bg-success { background-color: rgba(16, 185, 129, 0.15) !important; color: #059669 !important; border: 1px solid rgba(16, 185, 129, 0.3); }
.bg-danger { background-color: rgba(239, 68, 68, 0.12) !important; color: #dc2626 !important; border: 1px solid rgba(239, 68, 68, 0.25); }
.bg-warning { background-color: rgba(245, 158, 11, 0.15) !important; color: #d97706 !important; border: 1px solid rgba(245, 158, 11, 0.3); }
.bg-dark { background-color: var(--text-secondary) !important; color: #fff !important; border: none; }

.progress { background-color: var(--bg-input); border-radius: 100px; overflow: hidden; border: none; height: 8px; }
.progress-bar { background: linear-gradient(90deg, var(--primary), var(--primary-light)); font-weight: 600; font-size: 0.7rem; border-radius: 100px; }

.btn { 
  font-weight: 600; 
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  border: none;
}
.btn-primary { background-color: var(--primary); }
.btn-primary:hover { background-color: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3); }
.btn-success { background-color: var(--success); }
.btn-success:hover { background-color: #059669; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3); }
.btn-outline-primary { color: var(--primary); border: 1px solid var(--primary); background: transparent; }
.btn-outline-primary:hover { background-color: var(--primary); color: #fff; }
.btn-outline-secondary { color: var(--text-secondary); border: 1px solid var(--border-color); background: transparent; }
.btn-outline-secondary:hover { background-color: var(--bg-input); color: var(--text-primary); }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

.text-primary { color: var(--primary) !important; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-purple { color: var(--purple) !important; }
.text-muted { color: var(--text-muted) !important; }

#portal-view .text-primary { color: var(--primary) !important; }
#portal-view .border-primary { border-color: var(--primary) !important; }

#cust-filter .form-check-label { color: var(--primary) !important; }

#login-error {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--danger);
}

.alert-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: #dc2626;
}

.fs-1 { font-size: 2.5rem !important; }