:root {
    --blue: #2563eb;
    --green: #16a34a;
    --yellow: #ca8a04;
    --red: #dc2626;
    --gray: #6b7280;
    --bg: #f3f4f6;
    --border: #e5e7eb;
}
* { box-sizing: border-box; }
body {
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background: var(--bg);
    color: #111827;
}
.container { max-width: 1000px; margin: 0 auto; padding: 24px 16px; }

.topbar { background: #111827; color: #fff; }
.topbar-inner {
    max-width: 1000px; margin: 0 auto; padding: 14px 16px;
    display: flex; align-items: center; justify-content: space-between;
}
.brand { color: #fff; font-weight: 700; text-decoration: none; font-size: 18px; }
.nav { display: flex; align-items: center; gap: 16px; }
.nav a { color: #d1d5db; text-decoration: none; }
.nav a:hover { color: #fff; }
.nav-user { color: #9ca3af; font-size: 14px; }

.footer { text-align: center; color: var(--gray); padding: 24px; font-size: 13px; }

h1 { margin-top: 0; }
.page-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 16px; }

.btn {
    display: inline-block; padding: 8px 16px; border-radius: 6px; text-decoration: none;
    font-weight: 600; border: none; cursor: pointer; font-size: 14px;
}
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: #1d4ed8; }
.btn-link { color: var(--blue); text-decoration: none; margin-left: 8px; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 20px 0; }
.card { background: #fff; border-radius: 10px; padding: 20px; text-align: center; border-top: 4px solid var(--gray); }
.card-green { border-color: var(--green); }
.card-yellow { border-color: var(--yellow); }
.card-red { border-color: var(--red); }
.card-number { font-size: 32px; font-weight: 700; }
.card-label { color: var(--gray); font-size: 14px; margin-top: 4px; }

.table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.table th { background: #f9fafb; font-weight: 600; }
.table .empty { text-align: center; color: var(--gray); padding: 24px; }

.detail-table { border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; width: 100%; max-width: 700px; }
.detail-table th, .detail-table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
.detail-table th { width: 200px; color: var(--gray); font-weight: 600; }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; color: #fff; }
.badge-green { background: var(--green); }
.badge-yellow { background: var(--yellow); }
.badge-red { background: var(--red); }
.badge-gray { background: var(--gray); }

.filters { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.chip { padding: 6px 14px; border-radius: 999px; background: #fff; border: 1px solid var(--border); text-decoration: none; color: #374151; font-size: 13px; }
.chip-active { background: var(--blue); color: #fff; border-color: var(--blue); }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-error { background: #fee2e2; color: #991b1b; }

.form { max-width: 520px; background: #fff; padding: 24px; border-radius: 8px; display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; font-size: 14px; font-weight: 600; gap: 6px; color: #374151; }
.form input[type=text], .form input[type=email], .form input[type=password],
.form input[type=date], .form select, .form textarea {
    padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-weight: 400;
}
.checkbox-label { flex-direction: row !important; align-items: center; }

.login-body { display: flex; align-items: center; justify-content: center; height: 100vh; background: var(--bg); }
.login-box { background: #fff; padding: 32px; border-radius: 10px; width: 340px; box-shadow: 0 2px 10px rgba(0,0,0,0.08); }
.login-box h1 { font-size: 20px; margin-top: 0; }
.login-box form { display: flex; flex-direction: column; gap: 14px; }
.login-box label { display: flex; flex-direction: column; font-size: 14px; font-weight: 600; gap: 6px; }
.login-box input { padding: 9px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; font-weight: 400; }

@media (max-width: 640px) {
    .cards { grid-template-columns: repeat(2, 1fr); }
    .topbar-inner { flex-direction: column; gap: 10px; align-items: flex-start; }
}