*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
    font-family: system-ui, sans-serif;
    background: #0f1117;
    color: #e2e8f0;
}
a { color: #818cf8; text-decoration: none; }
a:hover { text-decoration: underline; }
h1 { margin: 0 0 24px; font-size: 1.6rem; }
h2 { margin: 0 0 12px; font-size: 1rem; color: #cbd5e1; }
code { color: #cbd5e1; }
.page-shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 24px; border-bottom: 1px solid #1f2937; }
.topbar-brand a { color: #e2e8f0; font-weight: 700; font-size: 1.1rem; }
.topbar-actions { display: flex; align-items: center; gap: 12px; }
.topbar-user { color: #94a3b8; font-size: 0.9rem; }
.main-shell { width: min(1400px, 100%); margin: 0 auto; padding: 24px; }
.navbar { display: flex; gap: 16px; margin-bottom: 20px; }
.nav-link { color: #94a3b8; text-decoration: none; font-size: 0.9rem; padding: 6px 12px; border-radius: 6px; }
.nav-link.active { background: #1e2130; color: #818cf8; font-weight: 600; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-bottom: 32px; }
.card, .chart-box, .table-box, .form-box, .login-card { background: #1e2130; border-radius: 10px; padding: 20px; box-shadow: 0 1px 4px rgba(0,0,0,.4); }
.card { text-align: center; }
.card .value { font-size: 2rem; font-weight: 700; color: #818cf8; }
.card .label { font-size: 0.8rem; color: #94a3b8; margin-top: 4px; }
.section-spacing { margin-top: 24px; }
.chart-host { height: 220px; }
.tables { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 24px; margin-top: 32px; }
.table-box table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.table-box th { text-align: left; padding: 6px 8px; color: #94a3b8; border-bottom: 1px solid #2d3748; }
.table-box td { padding: 6px 8px; border-bottom: 1px solid #2d3748; word-break: break-word; }
.table-link { margin-right: 10px; }
.toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 20px; flex-wrap: wrap; }
input, textarea, .form-input { width: 100%; background: #0f1117; border: 1px solid #2d3748; color: #e2e8f0; padding: 8px 10px; border-radius: 6px; margin-bottom: 14px; }
.toolbar input[type="text"] { flex: 1; max-width: 320px; margin-bottom: 0; }
textarea { min-height: 120px; resize: vertical; }
label { display: block; margin-bottom: 4px; font-size: 0.85rem; color: #94a3b8; }
.btn { display: inline-flex; justify-content: center; align-items: center; background: #4f46e5; color: #fff; border: none; padding: 8px 16px; border-radius: 6px; font-size: 0.85rem; cursor: pointer; text-decoration: none; }
.btn:hover { text-decoration: none; opacity: .95; }
.btn-secondary { background: #334155; }
.btn-danger { background: #dc2626; }
.disabled { opacity: .5; cursor: default; }
.form-actions { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.link-button { background: none; border: none; padding: 0; color: #818cf8; cursor: pointer; font: inherit; }
.danger-link { color: #f87171; }
.pagination { margin-top: 16px; display: flex; gap: 12px; align-items: center; }
.error-banner { background: #7f1d1d; color: #fecaca; padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; }
.empty-state { color: #94a3b8; }
.chip { display: inline-block; padding: 2px 7px; border-radius: 999px; font-size: 0.7rem; font-weight: 700; color: #fff; margin-right: 3px; }
.chip-fb { background: #1877f2; }
.chip-google { background: #ea4335; }
.chip-email { background: #64748b; }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(420px, 100%); }
.login-form { margin-top: 16px; }
.muted-text { color: #94a3b8; margin: 0; }
#blazor-error-ui { background: #7f1d1d; bottom: 0; box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2); display: none; left: 0; padding: 0.6rem 1.25rem 0.7rem 1.25rem; position: fixed; width: 100%; z-index: 1000; }
#blazor-error-ui .dismiss { cursor: pointer; position: absolute; right: 0.75rem; top: 0.5rem; }
@media (max-width: 768px) {
    .topbar, .main-shell { padding-left: 16px; padding-right: 16px; }
    .topbar { align-items: flex-start; flex-direction: column; }
    .topbar-actions { width: 100%; justify-content: space-between; }
}