:root {
    --bg: #0f172a;
    --card: #fff;
    --text: #1e293b;
    --muted: #64748b;
    --accent: #4f46e5;
    --danger: #dc2626;
    --ok: #16a34a;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: system-ui, sans-serif; background: #f1f5f9; color: var(--text); }
.login-page { min-height: 100vh; display: grid; place-items: center; background: linear-gradient(135deg, #0f172a, #312e81); }
.login-box { background: var(--card); padding: 2rem; border-radius: 12px; width: min(400px, 92vw); box-shadow: 0 20px 40px rgba(0,0,0,.25); }
.login-box h1 { margin: 0 0 .25rem; font-size: 1.5rem; }
.muted { color: var(--muted); margin: 0 0 1.25rem; }
.intro { background: #fff; padding: .75rem 1rem; border-radius: 8px; border-left: 4px solid var(--accent); }
label { display: block; margin-bottom: .75rem; font-size: .9rem; }
input { width: 100%; padding: .55rem .65rem; margin-top: .25rem; border: 1px solid #cbd5e1; border-radius: 6px; }
button { background: var(--accent); color: #fff; border: 0; padding: .6rem 1rem; border-radius: 6px; cursor: pointer; width: 100%; margin-top: .5rem; }
.alert { color: var(--danger); background: #fef2f2; padding: .5rem .75rem; border-radius: 6px; }
.ok { color: var(--ok); }
.app-header { display: flex; align-items: center; gap: 1rem; padding: .75rem 1.25rem; background: var(--bg); color: #e2e8f0; flex-wrap: wrap; }
.app-header a { color: #c7d2fe; text-decoration: none; margin-right: .75rem; }
.app-header .brand { font-weight: 700; color: #fff; }
.container { max-width: 960px; margin: 1.5rem auto; padding: 0 1rem; }
.data-table { width: 100%; border-collapse: collapse; background: #fff; border-radius: 8px; overflow: hidden; }
.data-table th, .data-table td { padding: .6rem .75rem; border-bottom: 1px solid #e2e8f0; text-align: left; }
.inline-form { display: flex; gap: .5rem; margin: 1rem 0; flex-wrap: wrap; }
.inline-form input { width: auto; flex: 1; min-width: 200px; }
.inline-form button { width: auto; }
.status-ok { background: #ecfdf5; color: var(--ok); padding: .6rem .9rem; border-radius: 8px; margin-bottom: 1rem; }
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .75rem; margin: 1rem 0; }
.stat-card { background: #fff; border-radius: 8px; padding: .9rem; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.stat-label { display: block; font-size: .8rem; color: var(--muted); }
.stat-value { display: block; font-size: 1.35rem; font-weight: 700; margin: .25rem 0; }
.stat-key { font-size: .75rem; color: var(--muted); }