/* ==========================================================================
   Deduction Studio — the new deduction board.
   Builds on the site theme tokens (site.css) and the premium tokens
   (premium.css: --surface, --shadow-*, --font-display, --font-ui …), so all
   eight themes style it. Layout: intake → working → report.
   ========================================================================== */

body.ds-app {
    --ds-gold: color-mix(in srgb, var(--accent) 55%, #d8ab3c 45%);
    --ds-sup: #4fbf7f;
    --ds-con: #e0605a;
    --ds-ink: var(--text);
    --ds-paper: color-mix(in srgb, var(--bg-card) 88%, #f4ecd8 12%);
    background:
        radial-gradient(1100px 520px at 50% -180px, var(--accent-soft), transparent 70%) no-repeat,
        radial-gradient(900px 600px at 100% 100%, color-mix(in srgb, var(--accent) 6%, transparent), transparent 70%) no-repeat,
        var(--bg);
}
:root[data-theme="parchment"] body.ds-app { --ds-sup: #2f7d4f; --ds-con: #b23a2e; --ds-paper: #fffaf0; }

.ds {
    /* body is a flex column: without min-width 0 the wide matrix table
       would stretch the whole page on phones instead of scrolling. */
    min-width: 0;
    width: 100%;
    box-sizing: border-box;
    max-width: 1240px;
    margin: 0 auto;
    padding: clamp(1rem, 3vw, 2.4rem) clamp(1rem, 3vw, 2.2rem) 4rem;
    min-height: calc(100vh - 80px);
}
.ds-visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.ds-kicker {
    margin: 0 0 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ds-gold);
}
.ds-link-btn {
    background: none;
    border: none;
    padding: 0;
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
}
.ds-link-btn:hover { color: var(--accent); }

/* ------------------------------------------------------------ Intake */
.ds-intake { animation: ds-rise 0.5s ease both; }
.ds-hero { text-align: center; max-width: 760px; margin: 1.2rem auto 1.8rem; }
.ds-hero h1 {
    margin: 0 0 0.8rem;
    font-size: clamp(2.2rem, 5.5vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.01em;
}
.ds-kicker-mark { filter: drop-shadow(0 0 10px var(--accent-glow)); }
.ds-sub { margin: 0 auto; color: var(--text-dim); font-size: 1.08rem; max-width: 640px; }

.ds-dossier {
    position: relative;
    max-width: 860px;
    margin: 0 auto;
    padding: clamp(1rem, 2.6vw, 1.7rem);
    border: 1px solid var(--edge);
    border-radius: 22px;
    background: var(--surface-raised);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-lg), 0 0 0 1px color-mix(in srgb, var(--accent) 8%, transparent);
}
.ds-dossier::before {
    /* the gilt edge along the top of the file */
    content: "";
    position: absolute;
    left: 24px; right: 24px; top: -1px;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, transparent, var(--ds-gold), transparent);
    opacity: 0.8;
}
.ds-dossier-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.7rem; }
.ds-dossier-tab {
    font-family: var(--font-ui);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.ds-dossier-stamp {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--ds-gold);
    border: 1px solid color-mix(in srgb, var(--ds-gold) 45%, transparent);
    border-radius: 6px;
    padding: 0.15rem 0.5rem;
    transform: rotate(-1.5deg);
}
.ds-dossier textarea,
.ds-dossier input[type="text"] {
    width: 100%;
    box-sizing: border-box;
    color: var(--text);
    background: var(--field);
    border: 1px solid var(--edge);
    border-radius: 14px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.22);
    font-family: Georgia, 'Times New Roman', serif;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}
.ds-dossier textarea {
    min-height: 220px;
    padding: 1.1rem 1.2rem;
    font-size: 1.04rem;
    line-height: 1.7;
    resize: vertical;
}
.ds-dossier input[type="text"] { padding: 0.75rem 1rem; font-size: 0.98rem; }
.ds-dossier textarea:focus,
.ds-dossier input[type="text"]:focus { outline: none; border-color: var(--accent); box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.18), var(--ring); }
.ds-dossier ::placeholder { color: color-mix(in srgb, var(--text-dim) 70%, transparent); font-style: italic; }
.ds-dossier-meta {
    display: flex;
    justify-content: space-between;
    margin: 0.45rem 0.2rem 1rem;
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--text-dim);
}
.ds-field-label {
    display: block;
    margin: 0 0 0.4rem 0.2rem;
    font-family: var(--font-ui);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-dim);
}
.ds-field-label span { font-weight: 400; text-transform: none; letter-spacing: 0; opacity: 0.8; }
.ds-form-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-top: 1.1rem; }

.ds-seg {
    display: inline-flex;
    padding: 4px;
    border-radius: 12px;
    background: var(--field);
    border: 1px solid var(--edge);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.ds-seg button {
    border: none;
    background: none;
    color: var(--text-dim);
    font-family: var(--font-ui);
    font-size: 0.86rem;
    font-weight: 500;
    padding: 0.5rem 0.95rem;
    border-radius: 9px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.ds-seg button.on {
    background: var(--surface-raised);
    color: var(--text);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-sm);
}
.ds-go { font-size: 1.05rem; padding: 0.85rem 1.6rem; cursor: pointer; display: inline-flex; align-items: center; gap: 0.6rem; }
.ds-go kbd {
    font-family: var(--font-ui);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.12rem 0.4rem;
    border-radius: 5px;
    background: rgba(0, 0, 0, 0.14);
    opacity: 0.75;
}
.ds-error {
    margin: 1rem 0 0;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid color-mix(in srgb, var(--ds-con) 50%, transparent);
    background: color-mix(in srgb, var(--ds-con) 10%, transparent);
    color: var(--text);
    font-size: 0.95rem;
}

.ds-shelf { max-width: 1100px; margin: 3rem auto 0; }
.ds-shelf-head { text-align: center; margin-bottom: 1.2rem; }
.ds-shelf-head h2 { margin: 0 0 0.3rem; font-size: 1.6rem; }
.ds-shelf-head p { margin: 0; color: var(--text-dim); }
.ds-sample-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.9rem; }
.ds-sample {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
    text-align: left;
    padding: 1.1rem 1.15rem 1.2rem;
    border: 1px solid var(--edge);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-sm);
    color: var(--text);
    font: inherit;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.ds-sample:hover, .ds-sample:focus-visible {
    outline: none;
    transform: translateY(-3px);
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md);
}
.ds-sample.is-featured { background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 10%, var(--bg-card)), var(--bg-card) 60%); border-color: color-mix(in srgb, var(--accent) 35%, var(--border)); }
.ds-sample-emoji { font-size: 1.7rem; line-height: 1; margin-bottom: 0.25rem; }
.ds-sample-tag { font-family: var(--font-ui); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ds-gold); }
.ds-sample-title { font-family: var(--font-display); font-weight: 700; font-size: 1.08rem; }
.ds-sample-blurb { color: var(--text-dim); font-size: 0.88rem; line-height: 1.5; }

.ds-casebook { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 0.8rem; }
.ds-cb-item { position: relative; }
.ds-cb-open {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
    padding: 1rem 2.4rem 1rem 1.1rem;
    border: 1px solid var(--edge);
    border-left: 3px solid var(--ds-gold);
    border-radius: 14px;
    background: var(--surface);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-sm);
    color: var(--text);
    font: inherit;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.25s ease;
}
.ds-cb-open:hover { transform: translateY(-2px); box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md); }
.ds-cb-title { font-family: var(--font-display); font-weight: 700; }
.ds-cb-verdict { color: var(--text-dim); font-size: 0.88rem; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2; overflow: hidden; }
.ds-cb-meta { font-family: var(--font-ui); font-size: 0.72rem; color: var(--text-dim); opacity: 0.85; }
.ds-cb-del {
    position: absolute; top: 0.6rem; right: 0.6rem;
    width: 1.7rem; height: 1.7rem;
    border-radius: 50%;
    border: 1px solid transparent;
    background: none;
    color: var(--text-dim);
    cursor: pointer;
}
.ds-cb-del:hover { color: var(--ds-con); border-color: var(--edge); }

.ds-method {
    list-style: none;
    max-width: 1100px;
    margin: 3.2rem auto 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    color: var(--text-dim);
    font-size: 0.92rem;
}
.ds-method li { padding: 1.1rem 1.2rem; border-top: 1px solid var(--edge); }
.ds-method span {
    display: inline-grid; place-items: center;
    width: 1.7rem; height: 1.7rem; margin-right: 0.5rem;
    border-radius: 50%;
    font-family: var(--font-display);
    color: var(--ds-gold);
    border: 1px solid color-mix(in srgb, var(--ds-gold) 50%, transparent);
}
.ds-method strong { color: var(--text); display: block; margin: 0.5rem 0 0.2rem; font-family: var(--font-display); font-size: 1.05rem; }

/* ------------------------------------------------------------ Working */
.ds-working { display: grid; place-items: center; min-height: calc(100vh - 200px); }
.ds-working-card {
    width: min(640px, 100%);
    text-align: center;
    padding: clamp(1.6rem, 4vw, 2.6rem);
    border: 1px solid var(--edge);
    border-radius: 24px;
    background: var(--surface-raised);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-lg);
    animation: ds-rise 0.45s ease both;
}
.ds-working-card h2 { margin: 0.2rem 0 1.4rem; font-size: clamp(1.4rem, 3vw, 1.9rem); }
.ds-lens {
    position: relative;
    width: 86px; height: 86px;
    margin: 0 auto 1.1rem;
    animation: ds-sweep 3.2s ease-in-out infinite;
}
.ds-lens::before {
    content: "";
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    border: 5px solid var(--ds-gold);
    background: radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.35), transparent 45%), color-mix(in srgb, var(--accent) 10%, transparent);
    box-shadow: 0 0 28px var(--accent-glow);
}
.ds-lens span {
    position: absolute;
    width: 30px; height: 8px;
    right: -6px; bottom: 6px;
    border-radius: 4px;
    background: var(--ds-gold);
    transform: rotate(45deg);
}
.ds-stages {
    list-style: none;
    margin: 0 0 1.3rem;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.6rem;
    position: relative;
}
.ds-stages li {
    display: flex; flex-direction: column; align-items: center; gap: 0.15rem;
    padding: 0.7rem 0.4rem;
    border-radius: 14px;
    border: 1px solid var(--edge);
    background: var(--surface);
    color: var(--text-dim);
    font-family: var(--font-ui);
    transition: border-color 0.3s ease, color 0.3s ease, opacity 0.3s ease;
}
.ds-stages b { font-size: 0.82rem; font-weight: 600; }
.ds-stages small { font-size: 0.7rem; opacity: 0.8; }
.ds-stages i {
    width: 14px; height: 14px; border-radius: 50%;
    border: 2px solid var(--edge);
    margin-bottom: 0.3rem;
}
.ds-stages li.is-active { color: var(--text); border-color: color-mix(in srgb, var(--accent) 55%, var(--border)); }
.ds-stages li.is-active i { border-color: var(--accent); border-top-color: transparent; animation: ds-spin 0.9s linear infinite; }
.ds-stages li.is-done { color: var(--text); }
.ds-stages li.is-done i { border-color: var(--ds-sup); background: var(--ds-sup); box-shadow: inset 0 0 0 2px var(--bg-card); }
.ds-stages li.is-skipped { opacity: 0.4; }
.ds-found { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem; min-height: 0.5rem; margin-bottom: 1.2rem; }
.ds-found-chip {
    display: inline-flex; gap: 0.35rem; align-items: center;
    padding: 0.28rem 0.7rem;
    border-radius: 999px;
    border: 1px solid var(--edge);
    background: var(--surface);
    font-family: var(--font-ui);
    font-size: 0.78rem;
    animation: ds-pop 0.4s ease both;
}
.ds-quote {
    margin: 0 auto 1.2rem;
    max-width: 460px;
    min-height: 3.4em;
    font-style: italic;
    color: var(--text-dim);
    opacity: 0;
}
.ds-quote.in { animation: ds-fade 0.8s ease forwards; }
.ds-quote cite { display: block; margin-top: 0.3rem; font-style: normal; font-family: var(--font-ui); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.75; }
.ds-working-foot { display: flex; justify-content: space-between; font-family: var(--font-ui); font-size: 0.8rem; color: var(--text-dim); }

/* ------------------------------------------------------------ Report */
.ds-report { animation: ds-rise 0.5s ease both; }
.ds-report-head { display: flex; gap: 1.5rem; justify-content: space-between; align-items: flex-end; flex-wrap: wrap; margin: 0.6rem 0 1.2rem; }
.ds-report-title h1 { margin: 0; font-size: clamp(1.9rem, 4.4vw, 3rem); line-height: 1.08; }
.ds-matter { margin: 0.5rem 0 0; color: var(--text-dim); font-size: 1.05rem; max-width: 720px; }
.ds-report-actions { display: flex; gap: 0.45rem; flex-wrap: wrap; }
.ds-report-actions .button-secondary { font-size: 0.82rem; padding: 0.48rem 0.8rem; cursor: pointer; }

.ds-tabs {
    position: sticky;
    top: 44px;
    z-index: 30;
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
    scrollbar-width: none;
    margin: 0 0 1.6rem;
    padding: 0.35rem;
    border: 1px solid var(--edge);
    border-radius: 14px;
    background: color-mix(in srgb, var(--bg-raised) 97%, transparent);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}
.ds-tabs::-webkit-scrollbar { display: none; }
.ds-tabs a {
    flex: none;
    padding: 0.42rem 0.85rem;
    border-radius: 10px;
    color: var(--text-dim);
    text-decoration: none;
    font-family: var(--font-ui);
    font-size: 0.82rem;
    font-weight: 500;
    white-space: nowrap;
}
.ds-tabs a:hover { color: var(--text); background: var(--accent-soft); }

.ds-sec { margin: 0 0 3.2rem; scroll-margin-top: 110px; }
.ds-sec-head { margin-bottom: 1.1rem; }
.ds-sec-head h2 { margin: 0 0 0.25rem; font-size: clamp(1.4rem, 2.6vw, 1.8rem); }
.ds-sec-head p { margin: 0; color: var(--text-dim); font-size: 0.95rem; }

/* Verdict */
.ds-verdict {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: clamp(1.2rem, 3vw, 2.4rem);
    align-items: center;
    padding: clamp(1.3rem, 3vw, 2.2rem);
    border: 1px solid color-mix(in srgb, var(--ds-gold) 35%, var(--border));
    border-radius: 24px;
    background:
        radial-gradient(600px 240px at 0% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%),
        var(--surface-raised);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-lg);
    margin-bottom: 1.6rem;
}
.ds-gauge { position: relative; width: 168px; height: 168px; }
.ds-gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ds-gauge circle { fill: none; stroke-width: 10; }
.ds-gauge-track { stroke: color-mix(in srgb, var(--border) 70%, transparent); }
.ds-gauge-arc { stroke: var(--ds-gold); stroke-linecap: round; transition: stroke-dashoffset 1.4s cubic-bezier(0.2, 0.7, 0.2, 1); filter: drop-shadow(0 0 6px var(--accent-glow)); }
.ds-gauge-num { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.ds-gauge-num b { font-family: var(--font-display); font-size: 2.6rem; line-height: 1; }
.ds-gauge-num small { font-size: 1.1rem; opacity: 0.7; }
.ds-gauge-num span { font-family: var(--font-ui); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ds-gold); margin-top: 0.3rem; }
.ds-verdict-q { margin: 0 0 0.4rem; color: var(--text-dim); font-style: italic; }
.ds-verdict-text { margin: 0 0 0.9rem; font-size: clamp(1.25rem, 2.3vw, 1.7rem); line-height: 1.3; }
.ds-plain { margin: 0 0 0.7rem; color: var(--text); opacity: 0.9; }
.ds-plain b, .ds-test b { font-family: var(--font-ui); font-size: 0.8rem; letter-spacing: 0.04em; }
.ds-test {
    display: flex; gap: 0.6rem; align-items: flex-start;
    margin: 0;
    padding: 0.7rem 0.9rem;
    border-radius: 12px;
    background: color-mix(in srgb, var(--accent) 8%, transparent);
    border: 1px dashed color-mix(in srgb, var(--accent) 40%, transparent);
}

.ds-summation { margin: 0 auto 3rem; max-width: 820px; text-align: center; }
.ds-summation blockquote {
    position: relative;
    margin: 0;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(1.05rem, 1.8vw, 1.22rem);
    line-height: 1.75;
    font-style: italic;
}
.ds-summation blockquote::before {
    content: "“";
    display: block;
    font-size: 4rem;
    line-height: 0.6;
    color: var(--ds-gold);
    opacity: 0.6;
}
.ds-summation figcaption { margin-top: 0.8rem; font-family: var(--font-ui); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-dim); }

/* Board */
.ds-board {
    position: relative;
    display: grid;
    grid-template-columns: 1.05fr 1.25fr 1fr 1fr;
    gap: clamp(1.4rem, 4vw, 3.4rem);
    align-items: center;
    padding: clamp(1rem, 2.5vw, 1.8rem);
    border: 1px solid var(--edge);
    border-radius: 22px;
    background:
        radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--text) 9%, transparent) 1px, transparent 0) 0 0 / 22px 22px,
        var(--surface);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md);
}
.ds-wires { position: absolute; inset: 0; pointer-events: none; overflow: visible; }
.ds-col { position: relative; z-index: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.ds-col-head { margin-bottom: 0.3rem; font-family: var(--font-ui); }
.ds-col-head b { display: block; font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ds-gold); }
.ds-col-head span { font-size: 0.74rem; color: var(--text-dim); }
.ds-node {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    flex-wrap: wrap;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--edge);
    border-radius: 12px;
    background: var(--bg-card);
    box-shadow: var(--shadow-sm);
    font-size: 0.86rem;
    line-height: 1.35;
    cursor: pointer;
    transition: opacity 0.25s ease, border-color 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}
.ds-node:focus-visible { outline: none; box-shadow: var(--ring); }
.ds-node-id { font-family: var(--font-ui); font-size: 0.66rem; font-weight: 600; color: var(--text-dim); letter-spacing: 0.04em; }
.ds-node-emoji { font-size: 1rem; }
.ds-node-text { flex: 1 1 8rem; min-width: 0; }
.ds-node-inf .ds-node-text { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; line-clamp: 3; overflow: hidden; font-size: 0.82rem; }
.ds-node-verdict .ds-node-text { display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 6; line-clamp: 6; overflow: hidden; }
.ds-node-bar { flex: 1 0 100%; height: 3px; border-radius: 2px; background: color-mix(in srgb, var(--border) 60%, transparent); overflow: hidden; }
.ds-node-bar i { display: block; height: 100%; background: var(--accent); opacity: 0.7; }
.ds-node-prob { font-family: var(--font-ui); font-size: 0.74rem; font-weight: 600; color: var(--text-dim); }
.ds-node-hyp.is-eliminated { opacity: 0.55; }
.ds-node-hyp.is-eliminated .ds-node-text { text-decoration: line-through; text-decoration-color: var(--ds-con); }
.ds-node-hyp.is-winner { border-color: var(--ds-gold); box-shadow: 0 0 0 1px color-mix(in srgb, var(--ds-gold) 40%, transparent), 0 10px 26px -12px var(--accent-glow); }
.ds-node-hyp.is-winner .ds-node-prob { color: var(--ds-gold); }
.ds-node-verdict {
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.05rem;
    border-color: var(--ds-gold);
    background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, var(--bg-card)), var(--bg-card) 70%);
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--ds-gold) 35%, transparent), var(--shadow-md);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.98rem;
}
.ds-node-kicker { font-family: var(--font-ui); font-weight: 600; font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ds-gold); }
.ds-pips { display: inline-flex; gap: 3px; margin-left: auto; }
.ds-pips i { width: 6px; height: 6px; border-radius: 50%; background: color-mix(in srgb, var(--border) 80%, transparent); }
.ds-pips i.on { background: var(--ds-gold); }

.ds-wires path { fill: none; stroke-width: 1.4; opacity: 0.42; transition: opacity 0.25s ease, stroke-width 0.25s ease; }
.ds-wires .w-derive { stroke: color-mix(in srgb, var(--text-dim) 80%, transparent); }
.ds-wires .w-sup { stroke: var(--ds-sup); }
.ds-wires .w-con { stroke: var(--ds-con); stroke-dasharray: 0.012 0.01; opacity: 0.3; }
.ds-wires .w-win { stroke: var(--ds-gold); stroke-width: 3; opacity: 0.95; }
.ds-wires .w-anim { stroke-dasharray: 1; stroke-dashoffset: 1; animation: ds-draw 1.1s ease forwards; animation-delay: var(--d); }
.ds-wires .w-con.w-anim { stroke-dasharray: 0.012 0.01; stroke-dashoffset: 0; animation-name: ds-draw-dash; }
.ds-board.is-tracing .ds-node:not(.is-lit) { opacity: 0.22; }
.ds-board.is-tracing .ds-node.is-lit { transform: translateY(-1px); border-color: color-mix(in srgb, var(--accent) 60%, var(--border)); }
.ds-board.is-tracing .ds-wires path { opacity: 0.06; }
.ds-board.is-tracing .ds-wires path.is-lit { opacity: 1; stroke-width: 2.4; }
.ds-board-legend { margin: 0.7rem 0 0; font-family: var(--font-ui); font-size: 0.76rem; color: var(--text-dim); display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.ds-board-legend span { display: inline-block; width: 18px; height: 3px; border-radius: 2px; margin-left: 0.5rem; }
.lg-sup { background: var(--ds-sup); }
.lg-con { background: repeating-linear-gradient(90deg, var(--ds-con) 0 4px, transparent 4px 7px); }
.lg-win { background: var(--ds-gold); height: 4px !important; }

/* Evidence */
.ds-evidence { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 1.4rem; align-items: start; }
.ds-source { position: sticky; top: 112px; }
.ds-source-inner {
    max-height: calc(100vh - 150px);
    overflow: auto;
    padding: 1.3rem 1.5rem;
    border-radius: 18px;
    border: 1px solid var(--edge);
    background: var(--ds-paper);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md);
    font-size: 1.02rem;
    line-height: 1.85;
}
.ds-source-label { margin: 0 0 0.6rem; font-family: var(--font-ui); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-dim); }
.ds-source-inner p { margin: 0 0 0.9rem; }
.ds-mark {
    color: inherit;
    background: linear-gradient(transparent 58%, color-mix(in srgb, var(--ds-gold) 38%, transparent) 58%);
    border-radius: 2px;
    padding: 0 1px;
    cursor: pointer;
    transition: background 0.3s ease;
}
.ds-mark sup { font-family: var(--font-ui); font-size: 0.6rem; font-weight: 600; color: var(--ds-gold); margin-right: 1px; }
.ds-mark:hover, .ds-mark.is-focus { background: color-mix(in srgb, var(--ds-gold) 40%, transparent); }
.ds-clues { display: flex; flex-direction: column; gap: 0.75rem; }
.ds-clue {
    padding: 1rem 1.1rem;
    border: 1px solid var(--edge);
    border-radius: 16px;
    background: var(--surface);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-sm);
    cursor: pointer;
    scroll-margin: 120px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.ds-clue.is-focus { border-color: var(--ds-gold); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ds-gold) 25%, transparent), var(--shadow-md); }
.ds-clue header { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.5rem; }
.ds-clue-emoji {
    display: grid; place-items: center;
    width: 2.4rem; height: 2.4rem; flex: none;
    border-radius: 11px;
    font-size: 1.3rem;
    background: var(--accent-soft);
}
.ds-clue h4 { margin: 0; font-family: var(--font-display); font-size: 1.05rem; }
.ds-clue blockquote { margin: 0 0 0.5rem; padding-left: 0.8rem; border-left: 2px solid var(--ds-gold); font-style: italic; color: var(--text-dim); }
.ds-clue blockquote small { font-style: normal; font-size: 0.72rem; opacity: 0.8; }
.ds-clue p { margin: 0 0 0.45rem; font-size: 0.94rem; }
.ds-clue-sig { color: var(--text-dim); }
.ds-clue-sig b { color: var(--text); font-family: var(--font-ui); font-size: 0.78rem; }
.ds-kind {
    display: inline-flex; gap: 0.3rem; align-items: center;
    font-family: var(--font-ui); font-size: 0.7rem; font-weight: 600;
    padding: 0.16rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--edge);
    color: var(--text-dim);
}
.ds-gaps {
    margin-top: 1.2rem;
    padding: 1rem 1.2rem;
    border-radius: 14px;
    border: 1px dashed var(--edge);
    color: var(--text-dim);
}
.ds-gaps b { color: var(--text); font-family: var(--font-ui); font-size: 0.85rem; }
.ds-gaps ul { margin: 0.4rem 0 0; padding-left: 1.2rem; }

/* Chips */
.ds-chip {
    display: inline-flex; align-items: center;
    margin: 0 0.15rem;
    padding: 0.05rem 0.45rem;
    border-radius: 999px;
    border: 1px solid color-mix(in srgb, var(--ds-gold) 45%, transparent);
    background: color-mix(in srgb, var(--ds-gold) 12%, transparent);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 600;
    line-height: 1.5;
    vertical-align: 0.1em;
    cursor: pointer;
}
.ds-chip:hover { background: color-mix(in srgb, var(--ds-gold) 28%, transparent); }
.ds-chip-inf { border-color: var(--edge); background: var(--accent-soft); cursor: help; }

/* Matrix */
.ds-matrix-wrap {
    overflow-x: auto;
    border: 1px solid var(--edge);
    border-radius: 18px;
    background: var(--surface);
    box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md);
}
.ds-matrix { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.ds-matrix th, .ds-matrix td { padding: 0.6rem 0.75rem; border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent); }
.ds-matrix tbody tr:last-child th, .ds-matrix tbody tr:last-child td { border-bottom: none; }
.ds-matrix thead th { vertical-align: bottom; text-align: center; font-family: var(--font-ui); min-width: 110px; background: color-mix(in srgb, var(--bg-raised) 60%, transparent); }
.ds-matrix thead th:first-child { text-align: left; font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); min-width: 220px; }
.ds-matrix tbody th { text-align: left; font-weight: normal; }
.ds-mx-id { display: block; font-size: 0.66rem; color: var(--text-dim); }
.ds-mx-label { display: block; font-size: 0.82rem; font-weight: 600; line-height: 1.25; margin-bottom: 0.4rem; }
.ds-mx-prob { display: block; height: 4px; border-radius: 2px; background: color-mix(in srgb, var(--border) 60%, transparent); overflow: hidden; }
.ds-mx-prob i { display: block; height: 100%; background: var(--text-dim); }
.ds-mx-pct { display: block; margin-top: 0.25rem; font-size: 0.72rem; color: var(--text-dim); }
.ds-matrix thead th.is-winner { color: var(--ds-gold); box-shadow: inset 0 -2px 0 var(--ds-gold); }
.ds-matrix thead th.is-winner .ds-mx-prob i { background: var(--ds-gold); }
.ds-matrix thead th.is-eliminated .ds-mx-label { text-decoration: line-through; text-decoration-color: var(--ds-con); opacity: 0.7; }
.ds-matrix td { text-align: center; font-family: var(--font-ui); font-weight: 600; }
.ds-mx-sup { color: var(--ds-sup); background: color-mix(in srgb, var(--ds-sup) 9%, transparent); }
.ds-mx-con { color: var(--ds-con); background: color-mix(in srgb, var(--ds-con) 9%, transparent); }
.ds-mx-nil { color: var(--text-dim); opacity: 0.5; }
.ds-matrix td.is-out { opacity: 0.45; }
.ds-hyp-notes { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 0.75rem; }
.ds-hyp-notes li { padding: 0.9rem 1rem; border-radius: 14px; border: 1px solid var(--edge); background: var(--surface); }
.ds-hyp-notes li.is-winner { border-color: var(--ds-gold); }
.ds-hyp-notes b { font-family: var(--font-display); }
.ds-hyp-notes p { margin: 0.35rem 0 0; font-size: 0.9rem; }
.ds-why { color: var(--text-dim); font-style: italic; }
.ds-status { font-family: var(--font-ui); font-size: 0.66rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.1rem 0.45rem; border-radius: 999px; border: 1px solid var(--edge); color: var(--text-dim); margin-left: 0.3rem; }
.is-winner > .ds-status { color: var(--ds-gold); border-color: var(--ds-gold); }
.is-eliminated > .ds-status { color: var(--ds-con); border-color: color-mix(in srgb, var(--ds-con) 50%, transparent); }

/* Reasoning */
.ds-steps { list-style: none; margin: 0; padding: 0; position: relative; }
.ds-steps::before { content: ""; position: absolute; left: 1.05rem; top: 0.8rem; bottom: 0.8rem; width: 2px; background: linear-gradient(var(--ds-gold), color-mix(in srgb, var(--ds-gold) 15%, transparent)); }
.ds-steps li { position: relative; display: flex; gap: 1rem; padding: 0 0 1.1rem; }
.ds-step-n {
    position: relative; z-index: 1; flex: none;
    display: grid; place-items: center;
    width: 2.15rem; height: 2.15rem;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--ds-gold);
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--ds-gold);
}
.ds-steps li > div { flex: 1; padding: 0.75rem 1rem; border-radius: 14px; border: 1px solid var(--edge); background: var(--surface); box-shadow: var(--shadow-sm); }
.ds-steps p { margin: 0 0 0.35rem; }
.ds-step-refs { display: flex; flex-wrap: wrap; gap: 0.2rem; }
.ds-inferences { margin-top: 1.4rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0.7rem; }
.ds-inf { padding: 0.85rem 1rem; border-radius: 14px; border: 1px dashed var(--edge); }
.ds-inf p { margin: 0.2rem 0 0.5rem; font-size: 0.92rem; }
.ds-inf-foot { display: flex; align-items: center; flex-wrap: wrap; gap: 0.2rem; }
.ds-inf-conf { margin-left: auto; font-family: var(--font-ui); font-size: 0.72rem; color: var(--text-dim); }

/* Cross-examination */
.ds-cross { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.ds-cross-card { padding: 1.2rem 1.3rem; border-radius: 18px; border: 1px solid var(--edge); background: var(--surface); box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-sm); }
.ds-cross-ob { border-top: 3px solid var(--ds-con); }
.ds-cross-re { border-top: 3px solid var(--ds-sup); }
.ds-cross-who { font-family: var(--font-ui); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-dim); }
.ds-cross-card p { margin: 0.5rem 0 0; }
.ds-cross-meta { display: grid; grid-template-columns: auto 1fr 1fr; gap: 1.4rem; margin-top: 1.1rem; align-items: start; color: var(--text-dim); font-size: 0.92rem; }
.ds-cross-meta b { color: var(--text); font-family: var(--font-ui); font-size: 0.8rem; }
.ds-cross-meta ul { margin: 0.35rem 0 0; padding-left: 1.1rem; }
.ds-conf-shift { display: flex; align-items: baseline; gap: 0.5rem; padding: 0.8rem 1rem; border-radius: 14px; border: 1px solid var(--edge); background: var(--surface); }
.ds-conf-shift span { font-family: var(--font-ui); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.12em; }
.ds-conf-shift b { font-family: var(--font-display); font-size: 1.5rem; }
.ds-conf-shift b.down { color: var(--ds-con); }
.ds-conf-shift b.up { color: var(--ds-sup); }
.ds-note { color: var(--text-dim); font-style: italic; text-align: center; }

/* People & time */
.ds-people-time { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; align-items: start; }
.ds-persons { display: grid; gap: 0.7rem; }
.ds-person { display: flex; gap: 0.8rem; padding: 0.9rem 1rem; border-radius: 14px; border: 1px solid var(--edge); background: var(--surface); }
.ds-avatar {
    flex: none; display: grid; place-items: center;
    width: 2.6rem; height: 2.6rem; border-radius: 50%;
    font-family: var(--font-display); font-weight: 700;
    color: var(--ds-gold);
    background: radial-gradient(circle at 30% 25%, color-mix(in srgb, var(--accent) 22%, transparent), var(--accent-soft));
    border: 1px solid color-mix(in srgb, var(--ds-gold) 40%, transparent);
}
.ds-person b { display: block; font-family: var(--font-display); }
.ds-person span { font-family: var(--font-ui); font-size: 0.74rem; color: var(--ds-gold); }
.ds-person p { margin: 0.3rem 0 0; font-size: 0.9rem; color: var(--text-dim); }
.ds-timeline { list-style: none; margin: 0; padding: 0 0 0 1.2rem; border-left: 2px solid color-mix(in srgb, var(--ds-gold) 45%, transparent); }
.ds-timeline li { position: relative; padding: 0 0 1rem 0.6rem; }
.ds-timeline li::before { content: ""; position: absolute; left: -1.62rem; top: 0.35rem; width: 11px; height: 11px; border-radius: 50%; background: var(--bg); border: 2px solid var(--ds-gold); }
.ds-timeline span { font-family: var(--font-ui); font-size: 0.76rem; font-weight: 600; color: var(--ds-gold); }
.ds-timeline p { margin: 0.1rem 0 0; font-size: 0.93rem; }

/* Ask Holmes */
.ds-ask { max-width: 820px; padding: 1.2rem; border-radius: 20px; border: 1px solid var(--edge); background: var(--surface-raised); box-shadow: inset 0 1px 0 var(--hairline), var(--shadow-md); }
.ds-ask-log { display: flex; flex-direction: column; gap: 0.7rem; }
.ds-ask-log:not(:empty) { margin-bottom: 1rem; }
.ds-msg { max-width: 85%; padding: 0.7rem 0.95rem; border-radius: 16px; animation: ds-pop 0.3s ease both; }
.ds-msg p { margin: 0; white-space: pre-wrap; }
.ds-msg-user { align-self: flex-end; background: color-mix(in srgb, var(--accent) 16%, var(--bg-card)); border-bottom-right-radius: 5px; }
.ds-msg-holmes { align-self: flex-start; background: var(--bg-card); border: 1px solid var(--edge); border-bottom-left-radius: 5px; }
.ds-msg-who { display: block; font-family: var(--font-ui); font-size: 0.7rem; font-weight: 600; color: var(--ds-gold); margin-bottom: 0.2rem; }
.ds-typing p { display: flex; gap: 4px; padding: 0.3rem 0; }
.ds-typing i { width: 7px; height: 7px; border-radius: 50%; background: var(--text-dim); animation: ds-blink 1.2s infinite; }
.ds-typing i:nth-child(2) { animation-delay: 0.2s; }
.ds-typing i:nth-child(3) { animation-delay: 0.4s; }
.ds-ask-suggest { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 0.9rem; }
.ds-ask-suggest button {
    padding: 0.4rem 0.8rem;
    border-radius: 999px;
    border: 1px solid var(--edge);
    background: var(--surface);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    cursor: pointer;
}
.ds-ask-suggest button:hover { border-color: var(--accent); }
.ds-ask-form { display: flex; gap: 0.5rem; }
.ds-ask-form input {
    flex: 1; min-width: 0;
    padding: 0.7rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--edge);
    background: var(--field);
    color: var(--text);
    font: inherit;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.2);
}
.ds-ask-form input:focus { outline: none; border-color: var(--accent); box-shadow: var(--ring); }
.ds-ask-form .button-primary { cursor: pointer; padding: 0.6rem 1.3rem; font-size: 0.95rem; }

/* ------------------------------------------------------------ Motion */
@keyframes ds-rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes ds-pop { from { opacity: 0; transform: scale(0.92) translateY(6px); } to { opacity: 1; transform: none; } }
@keyframes ds-fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
@keyframes ds-spin { to { transform: rotate(360deg); } }
@keyframes ds-blink { 0%, 80%, 100% { opacity: 0.25; } 40% { opacity: 1; } }
@keyframes ds-draw { to { stroke-dashoffset: 0; } }
@keyframes ds-draw-dash { from { opacity: 0; } to { opacity: 0.3; } }
@keyframes ds-sweep {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(6px, -4px) rotate(6deg); }
    50% { transform: translate(-4px, 4px) rotate(-4deg); }
    75% { transform: translate(-6px, -2px) rotate(3deg); }
}
@media (prefers-reduced-motion: reduce) {
    .ds-intake, .ds-report, .ds-working-card, .ds-found-chip, .ds-msg, .ds-quote.in { animation: none; opacity: 1; }
    .ds-lens { animation: none; }
    .ds-wires .w-anim { animation: none; stroke-dashoffset: 0; }
    .ds-gauge-arc { transition: none; }
}

/* ------------------------------------------------------------ Narrow screens */
@media (max-width: 980px) {
    .ds-board { grid-template-columns: 1fr 1fr; }
    .ds-wires { display: none; }
    .ds-evidence { grid-template-columns: 1fr; }
    .ds-source { position: static; }
    .ds-source-inner { max-height: 420px; }
    .ds-cross-meta { grid-template-columns: 1fr 1fr; }
    .ds-conf-shift { grid-column: 1 / -1; justify-self: start; }
}
@media (max-width: 680px) {
    .ds-verdict { grid-template-columns: 1fr; justify-items: center; text-align: center; }
    .ds-test { text-align: left; }
    .ds-board { grid-template-columns: 1fr; }
    .ds-cross, .ds-people-time, .ds-cross-meta { grid-template-columns: 1fr; }
    .ds-form-row { flex-direction: column; align-items: stretch; }
    .ds-seg { justify-content: center; }
    .ds-seg button { flex: 1; }
    .ds-go { justify-content: center; }
    .ds-go kbd { display: none; }
    .ds-report-actions { width: 100%; }
    .ds-msg { max-width: 95%; }
    .ds-tabs { top: 40px; }
}

/* ------------------------------------------------------------ Print */
@media print {
    body.ds-app { background: #fff; color: #111; }
    .et-titlebar, .et-statusbar, .ds-tabs, .ds-report-actions, #ds-sec-ask, .ds-board-legend, .site-chat-launcher, [class*="chat-"] { display: none !important; }
    .ds-sec, .ds-verdict, .ds-summation { break-inside: avoid-page; }
    .ds-source { position: static; }
    .ds-source-inner { max-height: none; overflow: visible; }
    .ds-wires .w-anim { animation: none; stroke-dashoffset: 0; }
}