/* Conversational Map — screen-reader-first chat over the map index. Mirrors the Context
   Map's design language: mobile-first, large targets, AAA contrast, and grey luminance
   boundaries so it survives macOS/iOS Invert Colours (coloured edges flip hue and lose
   contrast — so state and separation ride on grey, not colour). Colour lives in custom
   properties: light and dark are one ladder, swapped by prefers-color-scheme. */

:root {
    --ink: #111;
    --ink-soft: #333;
    --line: #5a5a5a;
    --fill: #f4f6f8;
    --focus: #0033aa;
    --link: #0033aa;
    --bg: #fff;
    --disabled-ink: #6a6a6a;
    --disabled-fill: #ececec;
    --disabled-line: #9a9a9a;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    padding: 1.25rem;
    max-width: 42rem;
    margin-inline: auto;
    font: 1.125rem/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--ink);
    background: var(--bg);
    hyphens: none;
}

h1 { font-size: 1.6rem; line-height: 1.2; margin: 0 0 0.5rem; }
h2 { font-size: 1.25rem; margin: 1.5rem 0 0.5rem; }
h1:focus { outline: none; }   /* programmatic focus target, no visible ring */
p { margin: 0 0 0.75rem; }

/* ── Links ──────────────────────────────────────────────────────────────── */
a { color: var(--link); text-underline-offset: 0.15em; }
a:hover { text-decoration-thickness: 2px; }

/* ── Focus ──────────────────────────────────────────────────────────────────
   A visible ring on EVERY interactive control — buttons, links, inputs,
   checkboxes. Never removed from an interactive element. The blue --focus stays
   high-luminance in both themes, so the ring survives Invert Colours. */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

/* ── Disclaimer ─────────────────────────────────────────────────────────── */
.cv-disclaimer ul { margin: 0.5rem 0 1rem; padding-inline-start: 1.25rem; }
.cv-disclaimer li { margin: 0 0 0.6rem; }

.cv-risk {
    padding: 0.875rem 1rem;
    background: var(--fill);
    border: 2px solid var(--line);
    border-radius: 8px;
    color: var(--ink);
}

.cv-consent {
    margin: 1.25rem 0;
    padding: 0.875rem 1rem;
    background: var(--fill);
    border: 2px solid var(--line);
    border-radius: 8px;
}
.cv-consent label {
    display: flex;
    gap: 0.625rem;
    align-items: flex-start;
    cursor: pointer;
    font-weight: 600;
}
.cv-consent input[type="checkbox"] {
    inline-size: 1.5rem;
    block-size: 1.5rem;
    margin: 0.15rem 0 0;
    flex-shrink: 0;
    accent-color: var(--focus);
}

/* ── Buttons (big targets) ──────────────────────────────────────────────── */
.cv-btn {
    display: block;
    inline-size: 100%;
    min-block-size: 3.25rem;
    padding: 0.75rem 1rem;
    margin: 0 0 0.75rem;
    font: inherit;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--ink);
    background: var(--bg);
    border: 2px solid var(--line);
    border-radius: 10px;
    cursor: pointer;
    text-align: center;
}
.cv-btn:hover { background: var(--fill); }
.cv-btn:disabled {
    color: var(--disabled-ink);
    background: var(--disabled-fill);
    border-color: var(--disabled-line);
    cursor: not-allowed;
}
.cv-start { margin-top: 0.5rem; }

/* ── App ────────────────────────────────────────────────────────────────── */
.cv-intro { color: var(--ink-soft); }

/* ── Conversation transcript ────────────────────────────────────────────── */
.cv-logwrap { margin: 1.25rem 0; }
.cv-log {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}
.cv-log:empty { display: none; }
.cv-msg { margin: 0; }
.cv-msg__text {
    margin: 0;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--fill);
}
/* Your question: indented, soft fill. The answer: full width, heavier grey edge so it
   stands out — separation by border weight and inset, not colour (invert-safe). */
.cv-msg--user { margin-inline-start: 2rem; }
.cv-msg--user .cv-msg__text { background: var(--fill); }
.cv-msg--bot .cv-msg__text {
    background: var(--bg);
    border-width: 2px;
    border-color: var(--ink);
}

/* ── Input ──────────────────────────────────────────────────────────────── */
.cv-label { display: block; font-weight: 600; margin: 0 0 0.25rem; }
.cv-hint { color: var(--ink-soft); margin: 0 0 0.6rem; }   /* body size, not <small> (AAA 1.4.6) */
.cv-inputrow {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    align-items: stretch;
}
.cv-input {
    flex: 1 1 12rem;
    min-block-size: 3.25rem;
    padding: 0.75rem 0.875rem;
    font: inherit;
    color: var(--ink);
    background: var(--bg);
    border: 2px solid var(--line);
    border-radius: 10px;
}
.cv-inputrow .cv-btn { inline-size: auto; flex: 0 0 auto; margin: 0; }

.cv-status {
    min-block-size: 1.55em;
    margin: 0.75rem 0 0;
    color: var(--ink-soft);
    font-style: italic;
}
.cv-status:empty { min-block-size: 0; }

/* ── Screen-reader-only ─────────────────────────────────────────────────── */
.cv-sr-only {
    position: absolute;
    inline-size: 1px; block-size: 1px;
    padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%);
    white-space: nowrap; border: 0;
}

/* ── Dark mode — follows the OS ───────────────────────────────────────────
   Greyscale luminance ladder + one blue accent; same invert-safe philosophy as
   light — separation rides on grey borders, not hue. */
@media (prefers-color-scheme: dark) {
    :root {
        --ink: #f2f4f6;
        --ink-soft: #b7bec6;
        --line: #8b929b;
        --fill: #22262c;
        --focus: #86b4ff;
        --link: #86b4ff;
        --bg: #14171a;
        --disabled-ink: #7a828b;
        --disabled-fill: #1b1e23;
        --disabled-line: #4a5058;
    }
}

/* ── High contrast — push borders to full ink (black in light, near-white in
   dark). Placed after dark so its --line wins when both are active. */
@media (prefers-contrast: high) {
    :root { --line: var(--ink); }
    .cv-risk, .cv-consent, .cv-btn, .cv-input, .cv-msg__text { border-color: var(--ink); }
    .cv-btn:disabled { color: var(--ink); border-color: var(--ink); }
}

@media (prefers-reduced-motion: no-preference) {
    .cv-btn, .cv-input { transition: background 0.12s ease; }
}