/* SAIIA Light Theme */
:root {
    --primary: #2563eb;
    --primary-light: #dbeafe;
    --secondary: #64748b;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container-fluid.py-4 {
    flex: 1;
}

/* Navbar */
.navbar {
    background-color: var(--bg-card) !important;
}

.navbar-brand {
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}

/* Cards */
.card {
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    background: var(--bg-card);
}

.card-header {
    background-color: #f1f5f9;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

/* Department cards on dashboard */
.dept-card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    cursor: pointer;
    border-left: 4px solid var(--primary);
}

.dept-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* Stats cards */
.stat-card {
    border-radius: 0.75rem;
    padding: 1.25rem;
}

.stat-card .stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Tables */
.table {
    border-color: var(--border-color);
}

.table thead th {
    background-color: #f1f5f9;
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

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

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
}

/* Forms */
.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.15);
}

/* Login page */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f4ff 0%, #e8f0fe 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

/* Badges */
.badge {
    font-weight: 500;
    font-size: 0.78rem;
    padding: 0.35em 0.65em;
}

/* File upload area */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    text-align: center;
    background: #fafbfc;
    transition: border-color 0.2s;
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
}

/* Approval actions */
.approval-actions .btn {
    min-width: 120px;
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .stat-card .stat-number {
        font-size: 1.5rem;
    }
    .container-fluid.py-4 {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }
}