:root {
    --bg: #0f172a;
    --panel: #111827;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --accent: #38bdf8;
    --danger: #f87171;
}

html, body { margin: 0; height: 100%; font-family: "Segoe UI", sans-serif; background: #0b1220; color: var(--text); }

.shell {
    display: grid;
    grid-template-columns: 240px 1fr;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}
.sidebar {
    background: var(--bg);
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: .4rem;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
}
.sidebar a, .linkish { color: var(--text); text-decoration: none; padding: .35rem .2rem; background: none; border: 0; text-align: left; cursor: pointer; font: inherit; }
.sidebar a.active { color: var(--accent); }
.brand { font-weight: 700; font-size: 1.15rem; }
.mode { color: var(--muted); font-size: .8rem; margin-bottom: .4rem; }
.sidebar-foot { margin-top: auto; padding-top: .8rem; display: flex; flex-direction: column; gap: .3rem; }
.content { padding: 1.5rem 2rem; min-height: 0; overflow-y: auto; }
.banner { background: #78350f; color: #fde68a; padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; }
.card, .login-card { background: var(--panel); padding: 1.5rem; border-radius: 12px; max-width: 420px; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; }
label { display: flex; flex-direction: column; gap: .3rem; margin: .6rem 0; }
input, select, textarea, button { padding: .45rem .6rem; border-radius: 6px; border: 1px solid #334155; background: #0b1220; color: var(--text); }
button { background: #0369a1; border: 0; cursor: pointer; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1rem 0; }
.stack { display: flex; flex-direction: column; gap: .5rem; max-width: 520px; }
table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
th, td { border-bottom: 1px solid #1f2937; padding: .4rem .3rem; text-align: left; font-size: .9rem; }
.tabs { display: flex; gap: .4rem; margin: 1rem 0; flex-wrap: wrap; }
.tabs button { background: #1e293b; }
.tabs button.active { background: #0369a1; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem 1rem; max-width: 920px; }
.form-grid label { margin: 0; }
.span-2 { grid-column: 1 / -1; }
.muted { color: var(--muted); }
.danger { color: var(--danger); }
.ok { color: #4ade80; }
.card-wide { background: var(--panel); padding: 1.2rem; border-radius: 12px; margin: 1rem 0; }
a.inline { color: var(--accent); }

#blazor-error-ui { display: none; }

h1:focus { outline: none; }