/* Modern ve Profesyonel Tasarım */

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-bg: #f8f9fa;
    --dark-text: #212529;
    --border-color: #dee2e6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--light-bg);
    color: var(--dark-text);
}

/* Navbar */
.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

.nav-link:hover {
    transform: translateY(-2px);
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: 10px 10px 0 0 !important;
    font-weight: 600;
    padding: 1rem 1.5rem;
}

/* Buttons */
.btn {
    border-radius: 6px;
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.btn-sm {
    padding: 0.25rem 0.75rem;
}

/* Tables */
.table {
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.table thead {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
}

.table thead th {
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: #f8f9fa;
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid var(--border-color);
    padding: 0.6rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

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

/* Badges */
.badge {
    padding: 0.4rem 0.8rem;
    font-weight: 500;
    border-radius: 6px;
}

/* Kanban Board */
.kanban-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.kanban-tasks {
    min-height: 200px;
    max-height: 70vh;
    overflow-y: auto;
    overflow-x: hidden;
    padding-right: 5px;
}

.kanban-tasks::-webkit-scrollbar {
    width: 8px;
}

.kanban-tasks::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.kanban-tasks::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 10px;
}

.kanban-tasks::-webkit-scrollbar-thumb:hover {
    background: #555;
}

.kanban-column {
    background: white;
    border-radius: 10px;
    padding: 1rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.kanban-column-header {
    font-weight: 600;
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    text-align: center;
}

.kanban-column.todo .kanban-column-header {
    background-color: #e9ecef;
    color: #495057;
}

.kanban-column.in_progress .kanban-column-header {
    background-color: #cfe2ff;
    color: #084298;
}

.kanban-column.on_hold .kanban-column-header {
    background-color: #fff3cd;
    color: #856404;
}

.kanban-column.done .kanban-column-header {
    background-color: #d1e7dd;
    color: #0f5132;
}

.kanban-task {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.75rem;
    cursor: move;
    transition: all 0.3s ease;
}

.kanban-task:hover {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.kanban-task.dragging {
    opacity: 0.5;
}

/* Kompakt kart stili */
.kanban-task.compact-card {
    padding: 0.6rem;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.kanban-task.compact-card h6 {
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
}

.kanban-task.compact-card .small {
    font-size: 0.75rem;
    line-height: 1.3;
}

.kanban-task.compact-card .badge {
    padding: 0.2rem 0.5rem;
    font-size: 0.7rem;
}

.kanban-task.compact-card .btn-sm {
    padding: 0.15rem 0.4rem;
    font-size: 0.7rem;
}

/* Dashboard Stats */
.stat-card {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    color: white;
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

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

.stat-card.success {
    background: linear-gradient(135deg, var(--success-color), #146c43);
}

.stat-card.warning {
    background: linear-gradient(135deg, var(--warning-color), #cc9a06);
}

.stat-card.info {
    background: linear-gradient(135deg, var(--info-color), #0aa2c0);
}

.stat-card .stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0.5rem 0;
}

.stat-card .stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Responsive */
@media (max-width: 768px) {
    .kanban-board {
        grid-template-columns: 1fr;
    }
    
    .stat-card .stat-value {
        font-size: 2rem;
    }
}

/* Loading Spinner */
.spinner-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* Priority Badges */
.priority-low {
    background-color: #d1e7dd;
    color: #0f5132;
}

.priority-normal {
    background-color: #cfe2ff;
    color: #084298;
}

.priority-high {
    background-color: #f8d7da;
    color: #842029;
}

/* Status Badges */
.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-approved {
    background-color: #d1e7dd;
    color: #0f5132;
}

.status-rejected {
    background-color: #f8d7da;
    color: #842029;
}

.status-cancelled {
    background-color: #ffeaa7;
    color: #d63031;
}