:root {
    /* Premium Color Palette - Slate & Indigo */
    --pm-primary: #6366f1; /* Indigo 500 */
    --pm-primary-dark: #4f46e5; /* Indigo 600 */
    --pm-secondary: #64748b; /* Slate 500 */
    --pm-success: #10b981; /* Emerald 500 */
    --pm-warning: #f59e0b; /* Amber 500 */
    --pm-danger: #ef4444; /* Red 500 */
    
    --pm-bg-body: #f8fafc; /* Slate 50 */
    --pm-bg-surface: #ffffff;
    --pm-text-main: #0f172a; /* Slate 900 */
    --pm-text-muted: #64748b; /* Slate 500 */
    
    --pm-border: #e2e8f0; /* Slate 200 */
    --pm-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --pm-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --pm-radius: 0.5rem; /* 8px */
    
    --pm-font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--pm-bg-body);
    font-family: var(--pm-font-sans);
    color: var(--pm-text-main);
    padding-top: 70px; /* Adjusted for taller nicer navbar */
}

/* Typography Polish */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--pm-text-main);
}

/* Navbar Polish */
.navbar {
    background-color: var(--pm-bg-surface) !important;
    border-bottom: 1px solid var(--pm-border);
    box-shadow: var(--pm-shadow-sm);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
}

.navbar-brand {
    font-weight: 700;
    color: var(--pm-primary) !important;
    font-size: 1.25rem;
}

.nav-link {
    color: var(--pm-text-muted) !important;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.15s ease;
}

.nav-link:hover, .nav-link.active {
    color: var(--pm-primary) !important;
}

/* Card Component Polish */
.card {
    border: 1px solid var(--pm-border);
    border-radius: var(--pm-radius);
    box-shadow: var(--pm-shadow-sm);
    background-color: var(--pm-bg-surface);
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: var(--pm-shadow);
}

/* Buttons Polish */
.btn {
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--pm-radius);
    transition: all 0.2s;
}

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

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

.btn-outline-primary {
    color: var(--pm-primary);
    border-color: var(--pm-primary);
}

.btn-outline-primary:hover {
    background-color: var(--pm-bg-body); /* Subtle hover */
    color: var(--pm-primary-dark);
    border-color: var(--pm-primary-dark);
}

/* Table Polish */
.table {
    margin-bottom: 0;
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: var(--pm-text-muted);
    background-color: var(--pm-bg-body);
    border-bottom: 1px solid var(--pm-border);
    padding: 1rem;
}

.table td {
    padding: 1rem;
    vertical-align: middle;
    color: var(--pm-text-main);
    border-bottom: 1px solid var(--pm-border);
}

.table-responsive {
    border-radius: var(--pm-radius);
    border: 1px solid var(--pm-border);
    background: var(--pm-bg-surface);
    overflow: hidden; /* For radius */
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 9999px; /* Pill shape */
}

/* Form Controls */
.form-control, .form-select {
    border-color: var(--pm-border);
    border-radius: var(--pm-radius);
    background-color: var(--pm-bg-surface);
    padding: 0.625rem 0.875rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--pm-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2); /* Indigo Ring */
}

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

/* Modern Breadcrumb */
.breadcrumb {
    background-color: var(--pm-bg-surface);
    border: 1px solid var(--pm-border);
    border-radius: var(--pm-radius);
    padding: 0.75rem 1.25rem; /* Increased padding */
    box-shadow: var(--pm-shadow-sm);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    font-size: 0.95rem;
}

.breadcrumb-item + .breadcrumb-item::before {
    /* Override Bootstrap divider */
    content: "\F285" !important; /* bi-chevron-right */
    font-family: "bootstrap-icons";
    font-size: 0.75rem;
    color: var(--pm-text-muted);
    padding: 0 0.75rem;
    float: none; /* Reset bootstrap float */
}

.breadcrumb-item a {
    text-decoration: none;
    color: var(--pm-text-muted);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    transition: all 0.2s ease;
    padding: 0.25rem 0.5rem;
    border-radius: var(--pm-radius);
}

.breadcrumb-item a:hover {
    color: var(--pm-primary);
    background-color: var(--pm-bg-body);
}

.breadcrumb-item.active {
    color: var(--pm-text-main);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.25rem 0.5rem;
}

/* Dashboard Icon Box - Ensures perfect circle */
.icon-box {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

/* Dark Mode Theme */
[data-theme="dark"] {
    --pm-bg-body: #0f172a; /* Slate 900 */
    --pm-bg-surface: #1e293b; /* Slate 800 */
    --pm-text-main: #f1f5f9; /* Slate 100 */
    --pm-text-muted: #94a3b8; /* Slate 400 */
    
    --pm-border: #334155; /* Slate 700 */
    --pm-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --pm-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.5), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

/* Dark Mode Specific Overrides */
[data-theme="dark"] .navbar {
    border-bottom-color: var(--pm-border);
}

[data-theme="dark"] .table {
    --bs-table-color: var(--pm-text-main);
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(255,255,255, 0.05);
    --bs-table-hover-color: var(--pm-text-main);
    --bs-table-hover-bg: #334155;
    border-color: var(--pm-border);
    color: var(--pm-text-main);
}

[data-theme="dark"] .table thead.bg-light {
    background-color: #0f172a !important; /* Darker header */
}

[data-theme="dark"] .table th {
    background-color: #1e293b;
    color: var(--pm-text-muted);
    border-bottom-color: var(--pm-border);
}

[data-theme="dark"] .table td {
    border-bottom-color: var(--pm-border);
}

[data-theme="dark"] .form-control, 
[data-theme="dark"] .form-select {
    background-color: #0f172a;
    border-color: var(--pm-border);
    color: var(--pm-text-main);
}

[data-theme="dark"] .form-control::placeholder {
    color: #475569;
}

[data-theme="dark"] .form-control:disabled, 
[data-theme="dark"] .form-control[readonly] {
    background-color: #1e293b; /* Slightly lighter than input bg */
    color: #94a3b8; /* Muted text */
    border-color: var(--pm-border);
    opacity: 1;
}

[data-theme="dark"] .nav-tabs .nav-link.active {
    background-color: var(--pm-bg-surface);
    border-color: var(--pm-border) var(--pm-border) var(--pm-bg-surface);
    color: var(--pm-text-main);
}

[data-theme="dark"] .nav-tabs .nav-link:hover {
    border-color: var(--pm-border);
}

[data-theme="dark"] .nav-tabs {
    border-bottom-color: var(--pm-border);
}

[data-theme="dark"] .modal-content {
    background-color: var(--pm-bg-surface);
    border-color: var(--pm-border);
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer {
    border-color: var(--pm-border);
}

[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

[data-theme="dark"] .text-gray-800 {
    color: var(--pm-text-main) !important;
}

[data-theme="dark"] .card-header.bg-white {
    background-color: var(--pm-bg-surface) !important;
}

/* Fix Bootstrap text utilities in Dark Mode */
[data-theme="dark"] .text-dark {
    color: var(--pm-text-main) !important;
}

[data-theme="dark"] .text-muted {
    color: #cbd5e1 !important; /* Lighter slate for better contrast on dark bg */
}

/* Fix Outline Buttons in Dark Mode */
[data-theme="dark"] .btn-outline-secondary {
    color: #cbd5e1;
    border-color: var(--pm-border);
}

[data-theme="dark"] .btn-outline-secondary:hover {
    color: #fff;
    background-color: var(--pm-border);
    border-color: var(--pm-border);
}

[data-theme="dark"] .btn-outline-danger {
    color: #f87171; /* Lighter red */
    border-color: #f87171;
}

[data-theme="dark"] .btn-outline-danger:hover {
    background-color: #ef4444; 
    color: white;
}

/* Ensure buttons with nav-link class keep their button colors */
.btn.nav-link {
    color: inherit !important;
}

.btn-primary.nav-link {
    color: #fff !important;
}