/* Probe Request — mini-exam page (loads after /style.css) */
.demo-main { padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px) + clamp(24px, 5vw, 56px)); padding-bottom: clamp(48px, 8vw, 96px); min-height: 80svh; }
.demo-wrap { max-width: 920px; display: grid; gap: 20px; }
.panel { border: 1px solid var(--line-strong); border-radius: 20px; background: var(--panel-solid); padding: clamp(20px, 4vw, 44px); display: grid; gap: 22px; box-shadow: var(--shadow); }
.panel .display { font-size: clamp(2rem, 1.2rem + 3.4vw, 3.6rem); }
.exam { display: grid; gap: 16px; }

.placeholder-banner {
  border: 1px dashed color-mix(in srgb, var(--warn) 60%, transparent); color: var(--ink-2);
  background: color-mix(in srgb, var(--warn) 8%, transparent);
  border-radius: 12px; padding: 12px 16px; font-size: var(--t-small);
}
.placeholder-banner b { color: var(--warn); }

.intro-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; margin: 0; }
.intro-stats div { background: var(--panel-solid); padding: 14px 16px; }
.intro-stats dt { font-family: var(--f-mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.intro-stats dd { margin: 4px 0 0; font-family: var(--f-display); font-stretch: 125%; font-weight: 800; font-size: clamp(1.4rem, 1rem + 1.6vw, 2rem); }
kbd { font-family: var(--f-mono); font-size: .8em; border: 1px solid var(--line-strong); border-bottom-width: 2px; border-radius: 5px; padding: 1px 6px; }

.quiz-top { display: grid; gap: 12px; }
.progress { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 6px; }
.progress i { height: 6px; border-radius: 3px; background: var(--line-strong); transition: background-color .3s ease; }
.progress i.cur { background: var(--accent); }
.progress i.ok { background: var(--ok); }
.progress i.no { background: var(--bad); }
.quiz-meta { display: flex; gap: 8px 18px; flex-wrap: wrap; font-family: var(--f-mono); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.quiz-meta .timer { margin-left: auto; font-variant-numeric: tabular-nums; }

.q-field { border: 0; margin: 0; padding: 0; min-width: 0; display: grid; gap: 18px; }
.q-text { padding: 0; font-size: clamp(1.1rem, 1rem + .5vw, 1.35rem); font-weight: 500; line-height: 1.5; text-wrap: pretty; }
.q-opts { display: grid; gap: 10px; }
.q-opt {
  position: relative; display: grid; grid-template-columns: 34px 1fr; gap: 14px; align-items: center;
  padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line-strong); background: transparent; cursor: pointer;
  text-align: left; min-height: 56px; transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}
.q-opt input { position: absolute; opacity: 0; pointer-events: none; }
.q-opt .l { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; border: 1px solid var(--line-strong); font-family: var(--f-mono); font-size: 13px; color: var(--muted); transition: all .2s ease; }
.q-opt:hover { border-color: var(--accent); background: var(--line); }
.q-opt:has(input:focus-visible) { outline: 2px solid var(--beacon); outline-offset: 2px; }
.q-opt.sel { border-color: var(--beacon); background: var(--glow); }
.q-opt.sel .l { background: var(--beacon); border-color: var(--beacon); color: var(--beacon-ink); }
.q-opt.right { border-color: var(--ok); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.q-opt.right .l { background: var(--ok); border-color: var(--ok); color: var(--bg); }
.q-opt.wrong { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 10%, transparent); }
.q-opt.wrong .l { background: var(--bad); border-color: var(--bad); color: var(--bg); }
.locked .q-opt { cursor: default; }
.locked .q-opt:hover { background: transparent; }
.locked .q-opt.right:hover { background: color-mix(in srgb, var(--ok) 12%, transparent); }
.locked .q-opt.wrong:hover { background: color-mix(in srgb, var(--bad) 10%, transparent); }

.explain { border-left: 3px solid var(--accent); padding: 4px 0 4px 18px; display: grid; gap: 8px; color: var(--ink-2); }
.explain.ok { border-left-color: var(--ok); }
.explain.no { border-left-color: var(--bad); }
.ex-verdict { font-family: var(--f-mono); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.explain.ok .ex-verdict { color: var(--ok); }
.explain.no .ex-verdict { color: var(--bad); }
.ex-src { font-family: var(--f-mono); font-size: var(--t-micro); color: var(--muted); }
.quiz-actions { display: flex; gap: 10px; flex-wrap: wrap; }
@media (max-width: 459px) { .quiz-actions .btn { width: 100%; } }

.res-grid { display: grid; gap: 28px; grid-template-columns: 1fr; align-items: center; }
@media (min-width: 720px) { .res-grid { grid-template-columns: 220px 1fr; } }
.gauge { position: relative; width: min(220px, 60vw); aspect-ratio: 1; margin-inline: auto; }
.gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.g-track { fill: none; stroke: var(--line-strong); stroke-width: 9; }
.g-fill { fill: none; stroke: var(--beacon); stroke-width: 9; stroke-linecap: round; stroke-dasharray: 314.16; stroke-dashoffset: 314.16; transition: stroke-dashoffset 1.4s cubic-bezier(.2, .8, .2, 1); }
.g-label { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.g-label span { font-family: var(--f-display); font-stretch: 125%; font-weight: 800; font-size: clamp(2.2rem, 1.6rem + 2vw, 3rem); line-height: 1; font-variant-numeric: tabular-nums; }
.g-label small { font-family: var(--f-mono); font-size: 11px; color: var(--muted); letter-spacing: .1em; text-transform: uppercase; margin-top: 6px; }
.res-copy { display: grid; gap: 16px; }
.domains { display: grid; gap: 10px; }
.dom { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; font-size: var(--t-small); }
.dom .bar { grid-column: 1 / -1; height: 6px; border-radius: 3px; background: var(--line-strong); overflow: hidden; }
.dom .bar i { display: block; height: 100%; background: var(--accent); border-radius: 3px; }
.dom .v { font-family: var(--f-mono); color: var(--muted); font-variant-numeric: tabular-nums; }
.res-actions { display: flex; gap: 10px; flex-wrap: wrap; }
@media (max-width: 459px) { .res-actions .btn { width: 100%; } }
.review { border-top: 1px solid var(--line); padding-top: 16px; }
.review summary { cursor: pointer; font-weight: 600; min-height: 44px; display: flex; align-items: center; }
.review ol { margin: 8px 0 0; padding-left: 1.2em; display: grid; gap: 16px; }
.review li { color: var(--ink-2); font-size: var(--t-small); }
.review li b { color: var(--ink); display: block; margin-bottom: 4px; font-weight: 500; font-size: var(--t-body); }
.review .yours.no { color: var(--bad); }
.review .yours.ok { color: var(--ok); }