body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #f3f4f6; color: #1f2933; margin: 0; }
main { max-width: 960px; margin: 0 auto; padding: 32px; }
h1 { font-size: 2rem; margin-bottom: 16px; }
form { background: #fff; padding: 24px; border-radius: 12px; box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08); }
input[type="file"], button { width: 100%; font-size: 1rem; }
button { margin-top: 12px; padding: 12px 18px; border: none; border-radius: 8px; color: #fff; background: #2563eb; cursor: pointer; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.actions a { padding: 10px 16px; border-radius: 8px; text-decoration: none; color: #fff; background: #6b7280; }
.actions a:first-child { background: #111827; }
.status { padding: 12px; border-radius: 8px; font-size: 0.95rem; }
.status-ok { background: #d1fae5; color: #047857; }
.status-warn { background: #fef3c7; color: #b45309; }
.error { background: #fee2e2; padding: 16px; border-radius: 8px; }
table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08); }
th, td { padding: 12px 16px; border-bottom: 1px solid #e5e7eb; text-align: left; }
th { background: #111827; color: #fff; }
@media (max-width: 640px) {
    table, thead, tbody, th, td, tr { display: block; }
    th { position: sticky; top: 0; }
    td { padding-left: 50%; position: relative; }
    td::before { content: attr(data-label); position: absolute; left: 16px; font-weight: 700; }
}