:root {
    --bg: #eef3f8;
    --panel: #ffffff;
    --ink: #1d2733;
    --muted: #6a7a8c;
    --line: #d5dfea;
    --brand: #0f4c81;
    --brand-soft: #e6eef7;
    --accent: #1a9e8f;
    --warn: #c2410c;
    --err: #d64545;
    --ok: #2f9e44;
    --card: #f4f8fc;
    --paper: #fffdf6;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(20, 40, 70, .08), 0 6px 18px rgba(20, 40, 70, .06);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    background: var(--bg);
    color: var(--ink);
    font: 15px/1.5 -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}

a { color: var(--brand); }

.wrap {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 18px 40px;
}

/* ---------- шапка ---------- */
.top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 18px;
    padding: 6px 0 14px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-right: auto;
    min-width: 0;
}

.brand .mark {
    flex: none;
    width: 38px;
    height: 38px;
    border-radius: 9px;
    background: var(--brand);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    font-size: 17px;
    letter-spacing: .5px;
}

.brand h1 { margin: 0; font-size: 19px; line-height: 1.2; }
.brand p { margin: 2px 0 0; font-size: 12.5px; color: var(--muted); }

.home-link {
    color: var(--muted);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}
.home-link:hover { color: var(--brand); }

.lang button, .mode button, .btn {
    font: inherit;
    cursor: pointer;
    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--ink);
    border-radius: 8px;
    padding: 8px 13px;
    transition: background .15s, border-color .15s, color .15s, transform .15s;
}

.btn:hover, .lang button:hover, .mode button:hover { border-color: var(--brand); }
.btn.primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn.primary:hover { background: #0c3d68; }
.btn.big { padding: 12px 26px; font-size: 16px; font-weight: 600; }

.mode, .lang {
    display: inline-flex;
    border: 1px solid var(--line);
    background: var(--panel);
    border-radius: 9px;
    overflow: hidden;
}
.mode button, .lang button { border: 0; border-radius: 0; padding: 8px 14px; }
.mode button + button, .lang button + button { border-left: 1px solid var(--line); }
.mode button.on, .lang button.on { background: var(--brand); color: #fff; }

/* ---------- правила ---------- */
details.rules {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 12px 16px;
    margin-bottom: 12px;
}
details.rules summary { cursor: pointer; font-weight: 600; color: var(--brand); }
details.rules ol { margin: 10px 0 0; padding-left: 20px; }
details.rules li { margin-bottom: 5px; }

/* ---------- раунды ---------- */
.rounds { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.rounds button {
    font: inherit;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid var(--line);
    background: var(--panel);
    color: var(--ink);
    border-radius: 9px;
    padding: 9px 14px;
}
.rounds button:hover { border-color: var(--brand); }
.rounds button.on { background: var(--brand); border-color: var(--brand); color: #fff; }
.rounds button.done:not(.on) { border-color: #bfe3c6; background: #f1fbf3; color: #1f6b2c; }

.roundIntro {
    padding: 12px 14px;
    margin: 0 0 12px;
    background: var(--brand-soft);
    border: 1px solid var(--line);
    border-left: 4px solid var(--brand);
    border-radius: var(--radius);
    font-size: 13.5px;
    line-height: 1.55;
}

.bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 12px;
}
.bar .spacer { flex: 1; }
.score { font-size: 13.5px; color: var(--muted); }
.score b { color: var(--ink); }
.points {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 20px;
    background: var(--brand-soft);
    color: var(--brand);
    font-weight: 600;
}
.points b { color: var(--brand); }
.points.low { background: #fdeaea; color: var(--err); }
.points.low b { color: var(--err); }

.msg {
    min-height: 20px;
    margin: 0 0 12px;
    padding: 10px 14px;
    border-radius: var(--radius);
    background: var(--brand-soft);
    border: 1px solid #cfe0f0;
    color: #1b3c5c;
    font-size: 14px;
}
.msg.ok { background: #e7f6ea; border-color: #bfe3c6; color: #1f6b2c; }
.msg.err { background: #fdeaea; border-color: #f3c4c4; color: #9c2b2b; }

/* ---------- поле ---------- */
.arena {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 14px;
    align-items: start;
}

.qcard {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 18px 20px 20px;
}

.anim-in { animation: slideIn .35s ease; }
@keyframes slideIn {
    from { opacity: 0; transform: translateX(18px); }
    to { opacity: 1; transform: none; }
}

.qhead {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    font-size: 12px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: .6px;
}
.progress { height: 5px; background: var(--brand-soft); border-radius: 4px; margin: 8px 0 14px; overflow: hidden; }
.progress span { display: block; height: 100%; background: var(--accent); transition: width .4s ease; }

.q { font-size: 17px; font-weight: 600; line-height: 1.45; margin: 4px 0 14px; }

.opts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.opt {
    font: inherit;
    text-align: left;
    cursor: pointer;
    min-height: 52px;
    padding: 11px 14px;
    border: 1.5px solid var(--line);
    border-radius: 11px;
    background: var(--card);
    color: var(--ink);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 10px;
    transition: border-color .15s, background .15s, transform .15s;
}
.opt:hover:not(:disabled) { border-color: var(--brand); transform: translateY(-1px); }
.opt:disabled { cursor: default; }
.opt .tag {
    font-weight: 700;
    font-size: 13px;
    padding: 3px 8px;
    border-radius: 6px;
    background: var(--brand);
    color: #fff;
    white-space: nowrap;
}
.opt .lbl { flex: 1 1 140px; min-width: 0; }
.opt .reason { flex-basis: 100%; font-size: 12.5px; color: #8a2a2a; }
.opt.right { border-color: var(--ok); background: #e9f8ec; }
.opt.right .tag { background: var(--ok); }
.opt.wrong { border-color: var(--err); background: #fdf0f0; }
.opt.wrong .tag { background: var(--err); }
.opt.picked { border-color: var(--brand); background: var(--brand-soft); }

.shake { animation: shake .45s ease; }
@keyframes shake {
    20%, 60% { transform: translateX(-6px); }
    40%, 80% { transform: translateX(6px); }
}
.pop { animation: pop .45s ease; }
@keyframes pop {
    50% { transform: scale(1.03); box-shadow: 0 0 0 6px rgba(47, 158, 68, .18); }
}

.explain {
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 11px;
    background: #f7fafc;
    border: 1px solid var(--line);
    animation: slideIn .3s ease;
}
.explain h3 { margin: 0 0 6px; font-size: 13.5px; color: var(--brand); }
.explain ul { margin: 4px 0 0; padding-left: 18px; }
.explain .why { font-size: 13.5px; margin: 0 0 6px; }
.explain .why.right { margin-bottom: 12px; }

.qfoot { margin-top: 14px; text-align: right; }

/* письмо юриста продавца */
.letter {
    position: relative;
    background: var(--paper);
    border: 1px solid #e6dcc2;
    border-radius: 6px;
    padding: 14px 16px 12px;
    margin: 0 0 14px;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 14.5px;
    line-height: 1.55;
    box-shadow: 0 6px 16px rgba(80, 60, 20, .08);
}
.letter p { margin: 6px 0 0; font-style: italic; }
.letterFrom {
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    font-size: 11.5px;
    color: #8a6d2f;
    text-transform: uppercase;
    letter-spacing: .5px;
}
.stamp { animation: stampIn .5s cubic-bezier(.2, 1.4, .4, 1); }
@keyframes stampIn {
    from { opacity: 0; transform: rotate(-3deg) scale(1.06); }
    to { opacity: 1; transform: none; }
}

/* условия сделки в дуэли */
.deal { margin: 0 0 14px; padding: 10px 14px; background: var(--brand-soft); border-radius: 10px; font-size: 13.5px; }
.deal dl { display: grid; grid-template-columns: max-content auto; gap: 3px 24px; margin: 6px 0 0; }
.deal dt { color: var(--muted); }
.deal dd { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }

.doneCard { text-align: center; padding: 30px 20px; }
.bigTick {
    width: 64px; height: 64px; margin: 0 auto 8px;
    border-radius: 50%; background: var(--ok); color: #fff;
    display: grid; place-items: center; font-size: 34px;
    animation: pop .6s ease;
}

/* ---------- боковая панель ---------- */
.side { display: flex; flex-direction: column; gap: 12px; position: sticky; top: 10px; }
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 14px 16px;
}
.panel h3 { margin: 0 0 10px; font-size: 14px; color: var(--brand); }
.panel .note { font-size: 12px; color: var(--muted); margin: 8px 0 0; }

.specBar {
    display: flex;
    justify-content: space-between;
    font-size: 11.5px;
    font-weight: 600;
    padding: 5px 8px;
    border-radius: 6px;
    color: #fff;
    background: linear-gradient(90deg, #b5432f, #b98a1e 50%, #0f4c81);
}
.specList { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; padding: 0; margin: 8px 0 0; }
.specList li {
    text-align: center;
    font-size: 12.5px;
    font-weight: 700;
    padding: 6px 2px;
    border-radius: 7px;
    border: 1.5px solid var(--line);
    transition: transform .25s, box-shadow .25s;
}
.specList li.sp-cr { background: #fbeee9; }
.specList li.sp-tm { background: #fbf4e2; }
.specList li.sp-fp { background: #e8f0f9; }
.specList li.hl { border-color: var(--accent); transform: scale(1.08); box-shadow: 0 0 0 3px rgba(26, 158, 143, .25); }

.meter { margin-bottom: 10px; }
.mLabel { display: flex; justify-content: space-between; font-size: 13px; }
.mTrack { height: 9px; border-radius: 6px; background: #edf1f6; overflow: hidden; margin-top: 3px; }
.mTrack span { display: block; height: 100%; border-radius: 6px; transition: width .6s ease; }
.meter.good .mTrack span { background: var(--ok); }
.meter.warn .mTrack span { background: #e0a21b; }
.meter.bad .mTrack span { background: var(--err); }

.labAc { display: block; font-size: 13px; }
.labAc input { width: 100%; margin: 6px 0 8px; accent-color: var(--brand); }
table.duel { width: 100%; border-collapse: collapse; font-size: 12.5px; font-variant-numeric: tabular-nums; }
table.duel th, table.duel td { padding: 4px 3px; text-align: left; }
table.duel thead th { font-weight: 600; color: var(--muted); font-size: 11.5px; }
table.duel td { position: relative; width: 43%; }
table.duel .dbar { display: block; height: 7px; border-radius: 4px; transition: width .35s ease; }
table.duel .dbar.buy { background: #6b8fb5; }
table.duel .dbar.sell { background: var(--ok); }
table.duel .dbar.sell.neg { background: var(--err); }
table.duel .v { display: block; margin-top: 1px; }

/* ---------- разбор ---------- */
.review {
    margin-top: 16px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 16px 18px;
}
.review h2 { margin: 0 0 12px; font-size: 18px; color: var(--brand); }
.rv { border-top: 1px solid var(--line); padding: 12px 0; }
.rv h3 { margin: 0 0 6px; font-size: 15px; }
.rv.good h3::before { content: "✓ "; color: var(--ok); }
.rv.bad h3::before { content: "✗ "; color: var(--err); }
.rvLetter { font-family: Georgia, serif; font-style: italic; font-size: 13.5px; color: #6b5420; margin: 0 0 6px; }
.rvPick { font-size: 13.5px; margin: 0 0 6px; }
.review .explain { margin-top: 6px; animation: none; }

/* ---------- стартовый и итоговый экраны ---------- */
.startBox, .winBox {
    position: fixed;
    inset: 0;
    z-index: 90;
    background: rgba(16, 30, 48, .55);
    align-items: center;
    justify-content: center;
    padding: 16px;
}
.winBox { display: none; }
.winBox.show { display: flex; }

.startCard, .winCard {
    max-width: 460px;
    width: 100%;
    max-height: 92vh;
    overflow: auto;
    background: var(--panel);
    border-radius: 16px;
    box-shadow: 0 24px 60px rgba(10, 25, 45, .35);
    padding: 26px 24px 22px;
    text-align: center;
    animation: winPop .35s ease;
}
.startCard h2 { margin: 8px 0; font-size: 26px; color: var(--brand); }
.startCard p { margin: 0 0 18px; }
@keyframes winPop {
    from { transform: scale(.9) translateY(12px); opacity: 0; }
    to { transform: none; opacity: 1; }
}

.startSeal, .winSeal {
    width: 76px; height: 76px; margin: 0 auto;
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 38px; font-weight: 700;
    color: #fff;
    background: var(--brand);
    border: 4px double #fff;
    box-shadow: 0 0 0 3px var(--brand), 0 8px 20px rgba(15, 76, 129, .3);
    animation: sealSpin 1s ease;
}
@keyframes sealSpin {
    from { transform: rotate(-200deg) scale(.4); opacity: 0; }
    to { transform: none; opacity: 1; }
}
.winBox.tier0 .winSeal { background: #b98a1e; box-shadow: 0 0 0 3px #b98a1e, 0 8px 20px rgba(185, 138, 30, .4); }
.winBox.tier3 .winSeal { background: var(--err); box-shadow: 0 0 0 3px var(--err), 0 8px 20px rgba(214, 69, 69, .35); }

.winTitle { margin: 12px 0 2px; font-size: 15px; color: var(--muted); text-transform: uppercase; letter-spacing: .6px; }
.winTier { margin: 0 0 6px; font-size: 23px; font-weight: 700; color: var(--brand); }
.winTierText { margin: 0 0 12px; font-style: italic; }
.winText { margin: 0 0 8px; font-size: 14px; }
.winBest { margin: 0 0 16px; font-size: 13px; color: var(--muted); }
.winCard .btn { margin: 4px; }

/* ---------- подвал ---------- */
footer {
    margin-top: 26px;
    padding-top: 14px;
    border-top: 1px solid var(--line);
    font-size: 12.5px;
    color: var(--muted);
}
footer a { color: var(--muted); }
footer .legal { margin-top: 10px; font-size: 11.5px; opacity: .8; }

/* ---------- адаптивность ---------- */
@media (max-width: 960px) {
    .arena { grid-template-columns: 1fr; }
    .side { position: static; }
}

@media (max-width: 720px) {
    .wrap { padding: 12px 12px 30px; }
    .opts { grid-template-columns: 1fr; }
    .q { font-size: 16px; }
    .qcard { padding: 14px 14px 16px; }
    .brand h1 { font-size: 17px; }
    .mode button, .lang button { padding: 8px 11px; }
    .rounds button { padding: 8px 10px; font-size: 13px; }
    .deal dl { grid-template-columns: 1fr auto; }
    .bar { padding: 10px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
}