:root {
    /* Light Theme Variables */
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --secondary-color: #64748b;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-color: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --sidebar-bg: #1e293b;
    --sidebar-text: #e2e8f0;
    --sidebar-hover: #334155;
    --header-bg: #ffffff;
    --success-bg: #d1fae5;
    --success-text: #065f46;
    --danger-bg: #fee2e2;
    --danger-text: #991b1b;
    --warning-bg: #fef3c7;
    --warning-text: #92400e;
    --info-bg: #dbeafe;
    --info-text: #1e40af;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --secondary-color: #94a3b8;
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f8fafc;
    --text-muted: #cbd5e1;
    --border-color: #334155;
    --sidebar-bg: #020617;
    /* Darker sidebar for contrast */
    --sidebar-text: #e2e8f0;
    --sidebar-hover: #1e293b;
    --header-bg: #1e293b;
    --success-bg: #064e3b;
    --success-text: #d1fae5;
    --danger-bg: #7f1d1d;
    --danger-text: #fee2e2;
    --warning-bg: #78350f;
    --warning-text: #fef3c7;
    --info-bg: #1e3a8a;
    --info-text: #dbeafe;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
}

* {
    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;
    transition: background-color 0.3s, color 0.3s;
}

/* Layout */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    transition: transform 0.3s ease-in-out;
    z-index: 50;
}

.sidebar-header {
    padding: 1.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-links {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background-color 0.2s;
}

.nav-link:hover {
    background-color: var(--sidebar-hover);
}

.nav-link i {
    width: 24px;
    margin-right: 0.75rem;
    text-align: center;
}

.user-info {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.main-content {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease-in-out;
    width: 100%;
}

.top-header {
    background-color: var(--header-bg);
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 40;
}

.content-body {
    padding: 2rem;
    flex: 1;
    overflow-x: hidden;
}

/* Components */
.card {
    background-color: var(--card-bg);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--border-color);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.2s;
    width: 100%;
}

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

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

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

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
}

th {
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
}

/* Utilities */
.text-center {
    text-align: center;
}

.mb-4 {
    margin-bottom: 1rem;
}

.flex {
    display: flex;
}

.justify-between {
    justify-content: space-between;
}

.items-center {
    align-items: center;
}

/* Hub Layout Specifics */
.hub-layout .sidebar {
    display: none;
}

.hub-layout .main-content {
    margin-left: 0;
}

.hub-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.hub-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.hub-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: white;
    font-size: 1.5rem;
}

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

    .sidebar.active {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .content-body {
        padding: 1rem;
    }

    /* Table scrolling */
    .card {
        overflow-x: auto;
    }

    /* Grid adjustments */
    .hub-grid {
        grid-template-columns: 1fr !important;
    }

    /* Form adjustments */
    .form-group {
        width: 100%;
    }

    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Hide bottom nav on mobile if it exists, or style it better */
    .bottom-nav {
        z-index: 100;
    }
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.25rem;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

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

@media (max-width: 768px) {

    /* Dashboard Premium Styles */
    .dashboard-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
        gap: 1.5rem;
        padding: 1rem 0;
    }

    .dashboard-card {
        background-color: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: 1rem;
        padding: 2rem 1.5rem;
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        text-decoration: none;
        color: var(--text-color);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        overflow: hidden;
    }

    /* Glow Effect on Hover */
    .dashboard-card::before {
        content: '';
        position: absolute;
        top: 0;

        .dashboard-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
            border-color: transparent;
        }

        .dashboard-card:hover::before {
            opacity: 1;
        }

        /* Card Specific Colors (Glows) */
        .card-blue:hover {
            box-shadow: 0 0 20px rgba(59, 130, 246, 0.3);
            border-color: #3b82f6;
        }

        .card-purple:hover {
            box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
            border-color: #8b5cf6;
        }

        .card-green:hover {
            box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
            border-color: #10b981;
        }

        .card-orange:hover {
            box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
            border-color: #f97316;
        }

        .card-pink:hover {
            box-shadow: 0 0 20px rgba(236, 72, 153, 0.3);
            border-color: #ec4899;
        }

        .card-indigo:hover {
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
            border-color: #6366f1;
        }

        .card-red:hover {
            box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
            border-color: #ef4444;
        }

        .card-yellow:hover {
            box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
            border-color: #f59e0b;
        }

        .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
            font-size: 1.75rem;
            color: white;
            transition: transform 0.3s ease;
        }

        .dashboard-card:hover .card-icon {
            transform: scale(1.1) rotate(5deg);
        }

        /* Icon Gradients */
        .bg-blue {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
        }

        .bg-purple {
            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
        }

        .bg-green {
            background: linear-gradient(135deg, #10b981, #059669);
        }

        .bg-orange {
            background: linear-gradient(135deg, #f97316, #ea580c);
        }

        .bg-pink {
            background: linear-gradient(135deg, #ec4899, #db2777);
        }

        .bg-indigo {
            background: linear-gradient(135deg, #6366f1, #4f46e5);
        }

        .bg-red {
            background: linear-gradient(135deg, #ef4444, #dc2626);
        }

        .bg-yellow {
            background: linear-gradient(135deg, #f59e0b, #d97706);
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .card-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* Mobile Adjustments for Grid */
        @media (max-width: 768px) {
            .dashboard-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .dashboard-card {
                padding: 1.5rem;
                flex-direction: row;
                text-align: left;
                align-items: center;
            }

            .card-icon {
                margin-bottom: 0;
                margin-right: 1.25rem;
                width: 48px;
                height: 48px;
                font-size: 1.25rem;
            }

            .dashboard-card:hover .card-icon {
                transform: scale(1.1);
                /* No rotation on mobile */
            }

        }
    }

    /* Micro-interactions */
    .btn {
        position: relative;
        overflow: hidden;
        transform: translate3d(0, 0, 0);
    }

    .btn:after {
        content: "";
        display: block;
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        pointer-events: none;
        background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
        background-repeat: no-repeat;
        background-position: 50%;
        transform: scale(10, 10);
        opacity: 0;
        transition: transform .5s, opacity 1s;
    }

    .btn:active:after {
        transform: scale(0, 0);
        opacity: .2;
        transition: 0s;
    }

    /* Input Focus Animation */
    .form-control:focus {
        transform: translateY(-1px);
        box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.1), 0 2px 4px -1px rgba(79, 70, 229, 0.06);
    }

    /* Empty State */
    .empty-state {
        text-align: center;
        padding: 4rem 2rem;
        color: var(--text-muted);
    }

    .empty-state-icon {
        font-size: 4rem;
        margin-bottom: 1.5rem;
        opacity: 0.5;
        color: var(--secondary-color);
    }

    .empty-state h3 {
        font-size: 1.25rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text-color);
    }

    .empty-state p {
        margin-bottom: 1.5rem;

        .card-orange:hover {
            box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
            border-color: #f97316;
        }

        .card-pink:hover {
            box-shadow: 0 0 20px rgba(236, 72, 153, 0.3);
            border-color: #ec4899;
        }

        .card-indigo:hover {
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
            border-color: #6366f1;
        }

        .card-red:hover {
            box-shadow: 0 0 20px rgba(239, 68, 68, 0.3);
            border-color: #ef4444;
        }

        .card-yellow:hover {
            box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
            border-color: #f59e0b;
        }

        .card-icon {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
            font-size: 1.75rem;
            color: white;
            transition: transform 0.3s ease;
        }

        .dashboard-card:hover .card-icon {
            transform: scale(1.1) rotate(5deg);
        }

        /* Icon Gradients */
        .bg-blue {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
        }

        .bg-purple {
            background: linear-gradient(135deg, #8b5cf6, #7c3aed);
        }

        .bg-green {
            background: linear-gradient(135deg, #10b981, #059669);
        }

        .bg-orange {
            background: linear-gradient(135deg, #f97316, #ea580c);
        }

        .bg-pink {
            background: linear-gradient(135deg, #ec4899, #db2777);
        }

        .bg-indigo {
            background: linear-gradient(135deg, #6366f1, #4f46e5);
        }

        .bg-red {
            background: linear-gradient(135deg, #ef4444, #dc2626);
        }

        .bg-yellow {
            background: linear-gradient(135deg, #f59e0b, #d97706);
        }

        .card-title {
            font-size: 1.125rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .card-desc {
            font-size: 0.875rem;
            color: var(--text-muted);
            line-height: 1.4;
        }

        /* Mobile Adjustments for Grid */
        @media (max-width: 768px) {
            .dashboard-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .dashboard-card {
                padding: 1.5rem;
                flex-direction: row;
                text-align: left;
                align-items: center;
            }

            .card-icon {
                margin-bottom: 0;
                margin-right: 1.25rem;
                width: 48px;
                height: 48px;
                font-size: 1.25rem;
            }

            .dashboard-card:hover .card-icon {
                transform: scale(1.1);
                /* No rotation on mobile */
            }

        }
    }

    /* Micro-interactions */
    .btn {
        position: relative;
        overflow: hidden;
        transform: translate3d(0, 0, 0);
    }

    .btn:after {
        content: "";
        display: block;
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
        pointer-events: none;
        background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
        background-repeat: no-repeat;
        background-position: 50%;
        transform: scale(10, 10);
        opacity: 0;
        transition: transform .5s, opacity 1s;
    }

    .btn:active:after {
        transform: scale(0, 0);
        opacity: .2;
        transition: 0s;
    }

    /* Input Focus Animation */
    .form-control:focus {
        transform: translateY(-1px);
        box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.1), 0 2px 4px -1px rgba(79, 70, 229, 0.06);
    }

    /* Empty State */
    .empty-state {
        text-align: center;
        padding: 4rem 2rem;
        color: var(--text-muted);
    }

    .empty-state-icon {
        font-size: 4rem;
        margin-bottom: 1.5rem;
        opacity: 0.5;
        color: var(--secondary-color);
    }

    .empty-state h3 {
        font-size: 1.25rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text-color);
    }

    .empty-state p {
        margin-bottom: 1.5rem;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    /* Focus Mode */
    body.focus-mode .sidebar,
    body.focus-mode .top-header {
        opacity: 0.2;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    body.focus-mode .main-content {
        margin-left: 0;
        /* Optional: Center content if desired, or just dim surroundings */
    }

    /* Print Styles */
    @media print {

        .sidebar,
        .header-actions,
        .btn,
        .btn-icon,
        .form-actions,
        .theme-toggle {
            display: none !important;
        }

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

        .card {
            box-shadow: none !important;
            border: 1px solid #ddd !important;
        }

        table {
            width: 100% !important;
            font-size: 12px;
        }

        th,
        td {
            padding: 0.5rem !important;
        }

        body {
            background-color: white !important;
            color: black !important;
        }
    }