/* Genel Stiller */
:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: #334155;
    background-color: #f1f5f9;
}

/* Navbar Özelleştirmeleri */
.navbar-custom {
    background-color: var(--primary-color) !important;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

.nav-link {
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.nav-link:hover, .nav-link:focus {
    color: rgba(255, 255, 255, 0.9) !important;
}

/* Kart Stilleri */
.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
}

/* Buton Stilleri */
.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.btn-primary:hover, .btn-primary:focus {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
}

/* Form Stilleri */
.form-control, .form-select {
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    border: 1px solid #cbd5e1;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(37, 99, 235, 0.25);
}

/* Tablo Stilleri */
.table {
    --bs-table-bg: transparent;
    --bs-table-striped-bg: rgba(0, 0, 0, 0.02);
    --bs-table-hover-bg: rgba(0, 0, 0, 0.03);
}

.table th {
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    color: #64748b;
    border-bottom-width: 1px;
}

/* Alert Stilleri */
.alert {
    border: none;
    border-radius: 0.375rem;
    padding: 1rem 1.25rem;
}

.alert-dismissible .btn-close {
    padding: 1rem;
}

/* Responsive Görüntüler */
.img-fluid {
    max-width: 100%;
    height: auto;
    border-radius: 0.375rem;
}

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

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

/* Dark Mode */
[data-bs-theme="dark"] {
    --bs-body-bg: #0f172a;
    --bs-body-color: #e2e8f0;
    
    .card, .modal-content, .dropdown-menu {
        background-color: #1e293b;
        border-color: #334155;
    }
    
    .table {
        --bs-table-color: #e2e8f0;
        --bs-table-striped-bg: rgba(255, 255, 255, 0.05);
        --bs-table-hover-bg: rgba(255, 255, 255, 0.1);
    }
}

/* Responsive Düzenlemeler */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .card {
        margin-bottom: 1rem;
    }
}

/* Özel Bileşenler */
.loading-spinner {
    width: 2rem;
    height: 2rem;
    border: 0.25rem solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    display: inline-block;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}