:root {
    --primary-color: #4F46E5;
    /* Indigo 600 */
    --primary-hover: #4338CA;
    /* Indigo 700 */
    --secondary-color: #64748B;
    /* Slate 500 */
    --bg-color: #F8FAFC;
    /* Slate 50 */
    --card-bg: #FFFFFF;
    --text-color: #1E293B;
    /* Slate 800 */
    --text-muted: #64748B;
    --border-color: #E2E8F0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Utilities */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 500;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-size: 0.875rem;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

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

.btn-block {
    width: 100%;
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-color);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--text-color);
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: var(--primary-color);
    outline: 0;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Layout */
.layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: #fff;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 50;
    transition: transform 0.3s ease;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    transition: margin-left 0.3s ease;
    width: calc(100% - var(--sidebar-width));
    max-width: 100%;
}

.nav-menu {
    flex: 1;
    padding: 1rem;
    list-style: none;
}

.nav-item {
    margin-bottom: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    color: var(--text-muted);
    font-weight: 500;
    transition: all 0.2s;
}

.nav-link:hover,
.nav-link.active {
    background-color: #EEF2FF;
    color: var(--primary-color);
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    margin-right: 1rem;
}

/* Auth Pages */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #F1F5F9;
    padding: 1rem;
}

.auth-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 400px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
}

.alert-danger {
    color: #991B1B;
    background-color: #FEE2E2;
    border: 1px solid #FECACA;
}

/* Components */
.table-container {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow-x: auto;
    width: 100%;
}

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

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .mobile-toggle {
        display: block;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .header {
        margin-bottom: 1.5rem;
        gap: 0.5rem;
        flex-wrap: nowrap;
    }

    .header h2 {
        font-size: 1rem !important;
    }

    /* Ensure tables never break layout */
    .table-container {
        margin: 0 -1rem;
        width: calc(100% + 2rem);
        border-radius: 0;
        border-right: none;
        border-left: none;
    }

    .table th,
    .table td {
        padding: 0.75rem;
        font-size: 0.8125rem;
    }

    /* Overlay when sidebar is open */
    .overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.5);
        z-index: 40;
    }

    .overlay.active {
        display: block;
    }
}

/* Print Styles */
@media print {

    .sidebar,
    .mobile-toggle,
    .btn,
    form,
    .action-bar,
    .header {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
        width: 100% !important;
    }

    .card {
        border: none !important;
        box-shadow: none !important;
    }

    body {
        background-color: white;
    }

    /* Ensure colorful backgrounds print */
    .report-card,
    .badge {
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
}

/* Report Filter Responsive Styles */
.report-filter-form {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
}

@media (max-width: 768px) {
    .report-filter-form .form-group {
        flex: 1 1 100% !important;
        /* Full width on mobile */
        min-width: 200px;
    }

    .report-filter-form .btn {
        flex: 1 1 auto;
        /* Grow to fill space */
        justify-content: center;
    }
}