:root {
    /* Brand Colors */
    --primary: #4f46e5;
    /* Indigo 600 */
    --primary-hover: #4338ca;
    /* Indigo 700 */
    --secondary: #64748b;
    /* Slate 500 */
    --success: #10b981;
    /* Emerald 500 */
    --info: #0ea5e9;
    /* Sky 500 */
    --warning: #f59e0b;
    /* Amber 500 */
    --danger: #ef4444;
    /* Red 500 */

    /* Light Mode Defaults */
    --bg-body: #f1f5f9;
    /* Slate 100 */
    --bg-card: #ffffff;
    --bg-sidebar: #ffffff;
    /* White for Light Mode */
    --text-primary: #1e293b;
    /* Slate 800 */
    --text-secondary: #64748b;
    /* Slate 500 */
    --text-sidebar: #334155;
    /* Slate 700 */
    --text-sidebar-hover: #0f172a;
    /* Slate 900 */
    --border-color: #e2e8f0;
    /* Slate 200 */
    --input-bg: #ffffff;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

[data-bs-theme="dark"] {
    /* Dark Mode Overrides */
    --bg-body: #0f172a;
    /* Slate 900 */
    --bg-card: #1e293b;
    /* Slate 800 */
    --bg-sidebar: #111827;
    /* Gray 900 */
    --text-primary: #f8fafc;
    /* Slate 50 */
    --text-secondary: #94a3b8;
    /* Slate 400 */
    --text-sidebar: #e0e7ff;
    --text-sidebar-hover: #ffffff;
    --border-color: #334155;
    /* Slate 700 */
    --input-bg: #0f172a;

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
}

[data-bs-theme="massar"] {
    /* Massar Theme - Inspired by brand colors */
    --primary: #C17A4F;
    /* Copper/Bronze - Primary accent */
    --primary-hover: #A66840;
    /* Darker copper */
    --secondary: #2B5F5F;
    /* Teal - Secondary */
    --success: #10b981;
    /* Keep green for success */
    --info: #5A8F8F;
    /* Lighter teal */
    --warning: #D4A574;
    /* Warm copper tone */
    --danger: #C15F5F;
    /* Muted red */

    /* Massar Theme Colors */
    --bg-body: #E8DCC4;
    /* Cream/Beige background */
    --bg-card: #F5F0E8;
    /* Lighter cream for cards */
    --bg-sidebar: #1A2F4F;
    /* Navy blue sidebar */
    --text-primary: #1A2F4F;
    /* Navy for primary text */
    --text-secondary: #2B5F5F;
    /* Teal for secondary text */
    --text-sidebar: #E8DCC4;
    /* Cream text on navy sidebar */
    --text-sidebar-hover: #ffffff;
    /* White on hover */
    --border-color: #D4C4A8;
    /* Darker beige for borders */
    --input-bg: #ffffff;
    /* White inputs */

    /* Massar Shadows - Warmer tones */
    --shadow-sm: 0 1px 2px 0 rgba(193, 122, 79, 0.08);
    --shadow: 0 4px 6px -1px rgba(193, 122, 79, 0.12), 0 2px 4px -2px rgba(193, 122, 79, 0.08);
    --shadow-md: 0 10px 15px -3px rgba(193, 122, 79, 0.15), 0 4px 6px -4px rgba(193, 122, 79, 0.08);
    --shadow-lg: 0 20px 25px -5px rgba(193, 122, 79, 0.18), 0 8px 10px -6px rgba(193, 122, 79, 0.08);
    --shadow-xl: 0 25px 50px -12px rgba(26, 47, 79, 0.25);
}

/* Massar Theme Specific Overrides */
[data-bs-theme="massar"] .sidebar .nav-link.active {
    background-color: var(--primary);
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(193, 122, 79, 0.4);
}

[data-bs-theme="massar"] .login-container {
    background: linear-gradient(135deg, #1A2F4F 0%, #2B5F5F 50%, #C17A4F 100%);
}

[data-bs-theme="massar"] .bg-success {
    background-color: #d1f4e0 !important;
    color: #065f46;
}

[data-bs-theme="massar"] .bg-warning {
    background-color: #F5E6D3 !important;
    color: #8B5A2B;
}

[data-bs-theme="massar"] .bg-danger {
    background-color: #F5D3D3 !important;
    color: #8B2B2B;
}

[data-bs-theme="massar"] .bg-info {
    background-color: #D3E8E8 !important;
    color: #2B5F5F;
}

[data-bs-theme="massar"] .bg-secondary {
    background-color: #E8DCC4 !important;
    color: #1A2F4F;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 0.95rem;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-primary);
    font-weight: 600;
    letter-spacing: -0.025em;
}

a {
    text-decoration: none;
    transition: color 0.2s;
    color: var(--primary);
}

a:hover {
    color: var(--primary-hover);
}

/* Sidebar Styles - Modern Dark/Glass */
.sidebar {
    background: var(--bg-sidebar);
    color: var(--text-sidebar);
    min-height: 100vh;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    border-right: 1px solid var(--border-color);
}

.sidebar .nav-link {
    color: var(--text-sidebar) !important;
    border-radius: 8px;
    margin: 4px 16px;
    padding: 10px 16px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
}

.sidebar .nav-link i {
    width: 20px;
    text-align: center;
    margin-right: 12px;
    opacity: 0.8;
}

.sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-sidebar-hover) !important;
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    background-color: var(--primary);
    color: #fff !important;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.sidebar-heading {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #818cf8;
    margin-top: 1.5rem;
    padding-left: 1.5rem;
}

/* Card Styles - floating and clean */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.3s;
}

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

.card-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    border-radius: 16px 16px 0 0 !important;
}

.card-title {
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.card-body {
    padding: 1.5rem;
    color: var(--text-primary);
}

/* Table Styles - Airy and clean */
.table-responsive {
    border-radius: 12px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

.table {
    margin-bottom: 0;
    color: var(--text-primary);
    --bs-table-bg: transparent;
    /* Reset bootstrap default */
}

.table thead th {
    background-color: var(--bg-body);
    /* Slightly distinct from card bg */
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
}

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

.table-hover tbody tr:hover {
    background-color: var(--bg-body);
}

/* Form Styles - Modern Inputs and Buttons */
.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.625rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    background-color: var(--input-bg);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
    background-color: var(--input-bg);
    /* Keep bg consistent on focus */
    color: var(--text-primary);
}

/* Ensure placeholder text is visible in dark mode */
.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.form-label {
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Modern Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    transition: all 0.2s;
    letter-spacing: 0.01em;
}

.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 2px 4px rgba(79, 70, 229, 0.2);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(79, 70, 229, 0.3);
}

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

.btn-outline-primary:hover {
    background-color: var(--primary);
    color: #fff;
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--success);
    border-color: var(--success);
    color: #fff;
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    font-weight: 600;
    font-size: 0.75rem;
    border-radius: 6px;
    letter-spacing: 0.02em;
}

.bg-success {
    background-color: #d1fae5 !important;
    color: #065f46;
}

.bg-warning {
    background-color: #fef3c7 !important;
    color: #92400e;
}

.bg-danger {
    background-color: #fee2e2 !important;
    color: #991b1b;
}

.bg-info {
    background-color: #e0f2fe !important;
    color: #075985;
}

.bg-secondary {
    background-color: #f1f5f9 !important;
    color: #475569;
}

/* In Dark Mode, adjust badges for contrast */
[data-bs-theme="dark"] .bg-success {
    background-color: #064e3b !important;
    color: #a7f3d0;
}

[data-bs-theme="dark"] .bg-warning {
    background-color: #78350f !important;
    color: #fde68a;
}

[data-bs-theme="dark"] .bg-danger {
    background-color: #7f1d1d !important;
    color: #fecaca;
}

[data-bs-theme="dark"] .bg-info {
    background-color: #0c4a6e !important;
    color: #bae6fd;
}

[data-bs-theme="dark"] .bg-secondary {
    background-color: #334155 !important;
    color: #cbd5e1;
}


/* Dashboard Highlight Cards */
.border-left-primary {
    border-left: 4px solid var(--primary) !important;
}

.border-left-success {
    border-left: 4px solid var(--success) !important;
}

.border-left-info {
    border-left: 4px solid var(--info) !important;
}

.border-left-warning {
    border-left: 4px solid var(--warning) !important;
}

/* Avatar Circle */
.avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1rem;
    background: var(--primary);
    color: white;
}

/* Login Page Revamp */
.login-container {
    min-height: 100vh;
    background: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-form {
    background: var(--bg-card);
    /* Use variable */
    backdrop-filter: blur(10px);
    padding: 3rem;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 450px;
}

.login-form h2 {
    color: var(--text-primary);
    font-weight: 800;
    margin-bottom: 2rem;
    text-align: center;
}

/* Utilities */
.shadow-hover:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg) !important;
}

.text-muted {
    color: var(--text-secondary) !important;
}

/* Modal Styling */
.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    color: var(--text-primary);
}

.modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
}

/* Close button - invert in dark mode */
[data-bs-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-body);
}

::-webkit-scrollbar-thumb {
    background: var(--secondary);
    border-radius: 4px;
    opacity: 0.5;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Fix for Massar Theme Sidebar Text Visibility */
[data-bs-theme="massar"] .sidebar h4,
[data-bs-theme="massar"] .sidebar h5,
[data-bs-theme="massar"] .sidebar .text-dark {
    color: var(--text-sidebar) !important;
}

[data-bs-theme="massar"] .sidebar .text-muted {
    color: var(--text-sidebar) !important;
    opacity: 0.7;
}

[data-bs-theme="massar"] .sidebar i {
    color: var(--primary) !important;
}

[data-bs-theme="massar"] .sidebar .nav-link {
    color: var(--text-sidebar) !important;
}

[data-bs-theme="massar"] .sidebar .nav-link:hover {
    color: #ffffff !important;
}

.extra-small {
    font-size: 0.7rem;
}