:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --body-bg: #f3f4f6;
    --sidebar-width: 250px;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-hover-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--body-bg);
    color: #333;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: #1a1a1a;
}

/* Card Styling */
.card {
    border: none;
    border-radius: 1rem;
    background-color: #ffffff;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
}

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

.feature-card:hover {
    transform: translateY(-5px);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 1.25rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Navbar Styling */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%) !important;
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.5px;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.1);
    color: white !important;
}

.nav-link.active {
    background-color: rgba(255,255,255,0.2);
    color: white !important;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    padding: 0.5rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.btn-primary {
    background-color: #2563eb;
    border-color: #2563eb;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
}

/* Dashboard Specifics */
.stat-card {
    display: flex;
    align-items: center;
    padding: 1.5rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-right: 1rem;
}

.stat-icon.bg-blue { background-color: #dbeafe; color: #2563eb; }
.stat-icon.bg-green { background-color: #d1fae5; color: #059669; }
.stat-icon.bg-purple { background-color: #f3e8ff; color: #7c3aed; }
.stat-icon.bg-orange { background-color: #ffedd5; color: #ea580c; }

.stat-label {
    color: #6b7280;
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: #111827;
}

/* Table Styling */
.table-custom {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-custom thead th {
    background-color: #f9fafb;
    color: #6b7280;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    padding: 1rem;
    border-bottom: 1px solid #e5e7eb;
}

.table-custom tbody td {
    padding: 1rem;
    border-bottom: 1px solid #f3f4f6;
    vertical-align: middle;
}

.table-custom tbody tr:last-child td {
    border-bottom: none;
}

.table-custom tbody tr:hover {
    background-color: #f9fafb;
}

/* Badge */
.badge {
    padding: 0.5em 0.8em;
    border-radius: 6px;
    font-weight: 500;
}

/* Footer */
.footer {
    background-color: #fff;
    padding: 2rem 0;
    margin-top: 4rem;
    border-top: 1px solid #e5e7eb;
    color: #6b7280;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease-out forwards;
}

/* Glassmorphism helper */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Task Card Specifics */
.task-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.task-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-hover-shadow);
}
.task-card.selected {
    border: 2px solid var(--primary-color);
    background-color: rgba(13, 110, 253, 0.02);
}
.task-image {
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid #f0f0f0;
}