:root {
    --primary-color: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #6366f1;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --dark-color: #1f2937;
    --light-color: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark-color);
}

.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    padding: 0.75rem 0;
    border-bottom: 3px solid rgba(255, 255, 255, 0.1);
}

.bg-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
    transition: all 0.3s ease;
}

    .navbar-brand:hover {
        transform: scale(1.05);
        text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    }

.nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    color: rgba(255, 255, 255, 0.9) !important;
}

    .nav-link:hover {
        color: white !important;
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

    .nav-link.rounded:hover {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

.container-main {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    margin: 2rem auto;
    max-width: 1400px;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.page-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: #6b7280;
    font-size: 1rem;
}

.btn {
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: 10px;
    transition: all 0.3s ease;
    border: none;
    box-shadow: var(--shadow-sm);
}

    .btn:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
    }

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

    .btn-primary:hover {
        background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    }

.btn-success {
    background: linear-gradient(135deg, var(--secondary-color), #059669);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--info-color), #2563eb);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #6b7280, #4b5563);
    color: white;
}

.card {
    border: none;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    overflow: hidden;
}

    .card:hover {
        box-shadow: var(--shadow-lg);
        transform: translateY(-5px);
    }

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    font-weight: 600;
    padding: 1rem 1.5rem;
    border: none;
}

.card-body {
    padding: 1.5rem;
}

.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid var(--border-color);
    padding: 0.625rem 1rem;
    transition: all 0.3s ease;
}

    .form-control:focus, .form-select:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    }

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.table {
    border-radius: 10px;
    overflow: hidden;
}

    .table thead th {
        background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
        color: white;
        font-weight: 600;
        border: none;
        padding: 1rem;
    }

    .table tbody tr {
        transition: all 0.2s ease;
    }

        .table tbody tr:hover {
            background: rgba(79, 70, 229, 0.05);
            transform: scale(1.01);
        }

    .table tbody td {
        padding: 0.875rem 1rem;
        vertical-align: middle;
    }

.modal-content {
    border: none;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border-radius: 20px 20px 0 0;
    border: none;
    padding: 1.5rem;
}

.modal-title {
    font-weight: 700;
}

.modal-body {
    padding: 2rem;
}

.modal-footer {
    border: none;
    padding: 1.5rem;
}

.badge {
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
}

.alert {
    border: none;
    border-radius: 15px;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-sm);
}

.spinner-border {
    width: 3rem;
    height: 3rem;
    border-width: 0.3rem;
}

.dropdown-menu {
    border: none;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 0.75rem;
    background: white;
    margin-top: 0.5rem;
}

.dropdown-item {
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: all 0.2s ease;
    color: var(--dark-color);
    font-weight: 500;
}

    .dropdown-item:hover {
        background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
        color: #667eea;
        transform: translateX(5px);
    }

    .dropdown-item i {
        opacity: 0.7;
        transition: opacity 0.2s ease;
    }

    .dropdown-item:hover i {
        opacity: 1;
    }

.nav-tabs {
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

    .nav-tabs .nav-link {
        color: var(--dark-color) !important;
        background: white;
        border: none;
        border-radius: 10px 10px 0 0;
        margin-right: 0.5rem;
        font-weight: 600;
        padding: 0.75rem 1.5rem;
        transition: all 0.3s ease;
    }

        .nav-tabs .nav-link:hover {
            background: rgba(255, 255, 255, 0.9);
            transform: translateY(-2px);
        }

        .nav-tabs .nav-link.active {
            background: white;
            color: var(--primary-color) !important;
            border-bottom: 3px solid var(--primary-color);
        }

.context-menu {
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    min-width: 200px;
}

.content-wrapper {
    background: white;
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    min-height: 70vh;
}

footer {
    background: transparent;
    backdrop-filter: blur(10px);
    margin-top: 3rem;
    padding: 2rem 0;
}

.stats-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

/* Tab Bar - Açık Sayfalar */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    display: none;
}

.tab-bar-container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

.tab-list {
    display: flex;
    overflow-x: auto;
    overflow-y: hidden;
    gap: 4px;
    padding: 8px 16px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.3) transparent;
}

    .tab-list::-webkit-scrollbar {
        height: 4px;
    }

    .tab-list::-webkit-scrollbar-track {
        background: transparent;
    }

    .tab-list::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 2px;
    }

        .tab-list::-webkit-scrollbar-thumb:hover {
            background: rgba(255, 255, 255, 0.5);
        }

.tab-item {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px 8px 0 0;
    padding: 8px 12px;
    min-width: 180px;
    max-width: 250px;
    transition: all 0.2s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: none;
}

    .tab-item:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
    }

    .tab-item.active {
        background: white;
        box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    }

.tab-link {
    display: flex;
    align-items: center;
    flex: 1;
    text-decoration: none;
    color: white;
    font-size: 14px;
    font-weight: 500;
    overflow: hidden;
}

.tab-item.active .tab-link {
    color: #667eea;
}

.tab-title {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tab-close {
    background: none;
    border: none;
    color: white;
    padding: 4px 6px;
    margin-left: 8px;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0.7;
}

    .tab-close:hover {
        background: rgba(255, 255, 255, 0.2);
        opacity: 1;
    }

.tab-item.active .tab-close {
    color: #667eea;
}

    .tab-item.active .tab-close:hover {
        background: rgba(102, 126, 234, 0.1);
    }

.tab-close i {
    font-size: 12px;
}

.stats-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stats-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.stats-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark-color);
}

.stats-label {
    color: #6b7280;
    font-size: 0.875rem;
    font-weight: 500;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.dataTables_wrapper .dataTables_filter input {
    border-radius: 10px;
    border: 2px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.dataTables_wrapper .dataTables_length select {
    border-radius: 10px;
    border: 2px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    border-radius: 8px;
    margin: 0 2px;
}

    .dataTables_wrapper .dataTables_paginate .paginate_button.current {
        background: linear-gradient(135deg, var(--primary-color), var(--primary-light)) !important;
        color: white !important;
        border: none !important;
    }

@media (max-width: 768px) {
    .container-main {
        margin: 1rem;
        padding: 1rem;
        border-radius: 15px;
    }

    .page-title {
        font-size: 1.5rem;
    }

    .stats-card {
        margin-bottom: 1rem;
    }
}