:root {
    --surface-0: #0a0a0a;
    --surface-1: #141414;
    --surface-2: #1c1c1c;
    --border: #262626;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --dim: #6b7280;
    --accent: #3b82f6;
    --success: #22c55e;
    --warning: #eab308;
    --error: #ef4444;
    --mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
}

body { background: var(--surface-0); color: var(--text); font-family: Inter, system-ui, sans-serif; }
.mud-paper { background: var(--surface-1) !important; border: 1px solid var(--border); }
a { color: var(--accent); text-decoration: none; }

.brand a { color: var(--text); font-weight: 600; }
.brand-sub { color: var(--muted); font-weight: 400; }
.who { color: var(--muted); margin-right: 12px; font-size: 0.9rem; }
.inline { display: inline; }
.link-btn { background: none; border: 1px solid var(--border); color: var(--muted); padding: 4px 10px; border-radius: 8px; cursor: pointer; font: inherit; font-size: 0.85rem; }
.link-btn:hover { color: var(--text); border-color: var(--muted); }

.section-label { font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* rating page */
.rate-nav { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.nav-counter { font-family: var(--mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.jump { display: inline-flex; align-items: center; gap: 2px; margin-left: 4px; }
.jump input { width: 6.5em; padding: 3px 6px; font: 0.85rem var(--mono); color: var(--text);
              background: transparent; border: 1px solid var(--border); border-radius: 6px; }
.jump input::placeholder { color: var(--dim); }
.jump input:focus { outline: none; border-color: var(--accent, #3b82f6); }
.jump input::-webkit-outer-spin-button, .jump input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.jump input[type=number] { -moz-appearance: textfield; }
.nav-progress { font-family: var(--mono); color: var(--dim); font-variant-numeric: tabular-nums; font-size: 0.85rem; }
.code { font-family: var(--mono); color: var(--dim); font-size: 0.85rem; margin-bottom: 6px; }
.label { font-size: 1.35rem; line-height: 1.4; font-weight: 500; }
.label .seg { color: var(--dim); }
.label .seg-last { color: var(--text); }

.choice-row { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 14px; }
.kbd { display: inline-block; margin-left: 6px; padding: 0 5px; border: 1px solid var(--border); border-radius: 5px; font-family: var(--mono); font-size: 0.7rem; color: var(--dim); }
.verdict-btn { min-width: 140px; }
.hint { color: var(--dim); font-size: 0.85rem; margin: -6px 0 12px; }
.required { color: var(--warning); }

/* definitions panel */
.defs { max-height: calc(100vh - 140px); overflow-y: auto; }
.def { padding: 10px 0; border-bottom: 1px solid var(--border); }
.def:last-child { border-bottom: none; }
.def h4 { margin: 0 0 4px; font-size: 0.95rem; }
.def p { margin: 0 0 6px; color: var(--text); font-size: 0.9rem; line-height: 1.45; }
.def .k { color: var(--dim); font-size: 0.8rem; }
.def .k b { color: var(--muted); font-weight: 500; }
.def.highlight { background: rgba(59,130,246,0.08); margin: 0 -8px; padding: 10px 8px; border-radius: 8px; }

/* sessions */
.session-row { display: grid; grid-template-columns: 1fr auto auto; gap: 16px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--border); }
.session-row:last-child { border-bottom: none; }
.pass { font-weight: 500; }
.pass-code { font-family: var(--mono); color: var(--dim); font-size: 0.8rem; }

/* login (static page, plain HTML) */
.login-wrap { display: flex; justify-content: center; padding-top: 10vh; }
.login-card { width: min(420px, 92vw); background: var(--surface-1); border: 1px solid var(--border); border-radius: 12px; padding: 28px; }
.login-card h1 { margin: 0 0 6px; font-size: 1.3rem; }
.login-card label { display: block; margin: 14px 0 0; color: var(--muted); font-size: 0.85rem; }
.login-card input { display: block; width: 100%; margin-top: 4px; padding: 9px 10px; background: var(--surface-0); color: var(--text); border: 1px solid var(--border); border-radius: 8px; font: inherit; }
.login-card button { margin-top: 18px; width: 100%; padding: 10px; background: var(--accent); color: white; border: none; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; }
.login-card .field-hint { display: block; margin-top: 4px; color: var(--dim); font-size: 0.78rem; }
.login-card .error { margin-top: 10px; color: var(--error); font-size: 0.9rem; }
code { font-family: var(--mono); font-size: 0.85em; }

/* results */
.num { text-align: right; font-variant-numeric: tabular-nums; }
.mono { font-family: var(--mono); font-size: 0.85rem; }
.dim { color: var(--dim); }
.escaped { color: var(--warning); font-weight: 500; letter-spacing: 0.04em; font-size: 0.8rem; }
.total-row td { border-bottom: 1px solid var(--border) !important; }
.stat-row { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 6px; }
.stat-value { font-size: 1.5rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.stat-value.good { color: var(--success); }
.stat-value.warn { color: var(--warning); }
.stat-label { font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--dim); }
.bar-row { display: grid; grid-template-columns: 130px 1fr 44px; align-items: center; gap: 10px; margin: 6px 0; }
.bar-label { font-size: 0.85rem; }
.mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mb-3 { margin-bottom: 12px; }

/* definitions page */
.appbar-link { margin-left: 18px; }
.gloss-wrap { max-width: 860px; }
.gloss-title { font-size: 1.4rem; font-weight: 600; margin: 0 0 4px; }
.gloss-lead { color: var(--muted); margin: 0 0 8px; }
.gloss { display: grid; grid-template-columns: max-content 1fr; column-gap: 20px; row-gap: 8px; margin: 8px 0 0; }
.gloss dt { font-family: var(--mono); color: var(--text); font-weight: 500; white-space: nowrap; }
.gloss dd { margin: 0; color: var(--muted); line-height: 1.45; }
@media (max-width: 640px) { .gloss { grid-template-columns: 1fr; row-gap: 2px; } .gloss dd { margin-bottom: 8px; } }