/* Base Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: #f8fafc;
    margin: 0;
    padding: 0;
    color: #334155;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: #1e293b;
    margin-top: 0;
}

a {
    text-decoration: none;
}

/* Container */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }
.text-center { text-align: center; }

/* Navbar */
.navbar {
    background: #1e3a8a;
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.nav-brand {
    font-size: 20px;
    font-weight: 700;
}

.nav-links a {
    color: #cbd5e1;
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover, .nav-links a.active {
    color: white;
}

.btn-logout {
    background: #ef4444;
    padding: 6px 12px;
    border-radius: 4px;
    color: white !important;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-header {
    background: #f1f5f9;
    padding: 15px 20px;
    border-bottom: 1px solid #e2e8f0;
}

.card-header h2 {
    margin: 0;
    font-size: 18px;
}

.card-body {
    padding: 20px;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.table th {
    background-color: #f8fafc;
    font-weight: 600;
    color: #475569;
}

/* Badges */
.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}
.badge-success { background: #dcfce7; color: #166534; }
.badge-danger { background: #fee2e2; color: #991b1b; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: background 0.3s;
}
.btn-sm { padding: 4px 8px; font-size: 12px; }
.btn-primary { background: #3b82f6; color: white; }
.btn-primary:hover { background: #2563eb; }
.btn-success { background: #10b981; color: white; }
.btn-success:hover { background: #059669; }
.btn-info { background: #0ea5e9; color: white; }
.btn-info:hover { background: #0284c7; }
.btn-danger { background: #ef4444; color: white; }
.btn-danger:hover { background: #dc2626; }
.btn-secondary { background: #64748b; color: white; }
.btn-secondary:hover { background: #475569; }
.btn-block { display: block; width: 100%; }

/* Forms */
.grid-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}
@media (max-width: 768px) {
    .grid-form { grid-template-columns: 1fr; }
}
.full-width {
    grid-column: 1 / -1;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: #475569;
}

.form-control {
    width: 100%;
    padding: 10px;
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    box-sizing: border-box;
    font-family: inherit;
}
.form-control:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Login Page Specific */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
}
.login-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}
.login-header {
    text-align: center;
    margin-bottom: 30px;
}
.login-header h2 {
    color: #1e3a8a;
    font-size: 24px;
    margin-bottom: 5px;
}
.login-header p {
    color: #64748b;
    font-size: 14px;
    margin: 0;
}

/* Alerts */
.alert {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
}
.alert-danger {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #f87171;
}

/* Utilities */
.d-flex { display: flex; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}
@media (max-width: 768px) {
    .summary-cards { grid-template-columns: 1fr; }
}
.summary-card {
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    text-align: center;
    border-top: 4px solid #3b82f6;
}
.summary-card.active {
    border-top-color: #10b981;
}
.summary-card.inactive {
    border-top-color: #ef4444;
}
.summary-card h3 {
    margin: 0;
    font-size: 16px;
    color: #64748b;
    text-transform: uppercase;
    font-weight: 600;
}
.summary-card p {
    margin: 10px 0 0 0;
    font-size: 32px;
    font-weight: 700;
    color: #1e293b;
}

/* DataTables Overrides */
.dataTables_wrapper .dataTables_filter input {
    border: 1px solid #cbd5e1;
    border-radius: 4px;
    padding: 6px 10px;
    margin-left: 8px;
    font-family: inherit;
}
.dataTables_wrapper .dataTables_filter input:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}
.dt-buttons .dt-button {
    background: #f1f5f9 !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 4px !important;
    color: #475569 !important;
    padding: 6px 12px !important;
    font-weight: 500 !important;
    transition: all 0.2s !important;
}
.dt-buttons .dt-button:hover {
    background: #e2e8f0 !important;
    color: #1e293b !important;
}