body {
    font-family: Segoe UI, Arial, sans-serif;
    background: #f4f5f7;
    margin: 0;
}

.top-bar {
    background: #1f2937;
    color: white;
    padding: 16px 24px;
}

.top-bar h1 {
    margin: 0;
    font-size: 20px;
}

main {
    padding: 24px;
}

.tabs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
}

.tab-buton {
    padding: 8px 20px;
    border: 1px solid #d1d5db;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

.tab-buton.aktif {
    background: #1f2937;
    color: white;
    border-color: #1f2937;
}

.son-guncelleme {
    margin-left: auto;
    color: #6b7280;
    font-size: 13px;
}

.rapor-tablo {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.rapor-tablo th, .rapor-tablo td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
}

.rapor-tablo th {
    background: #f9fafb;
    font-size: 13px;
    color: #374151;
}

.rapor-tablo tfoot td {
    background: #f3f4f6;
}

.hata-kutusu {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    padding: 16px;
    border-radius: 6px;
}