/* Boost crossover window — VR-lesson chrome on a standalone tool page */

.bc-page {
    max-width: 1380px;
    margin: 0 auto 48px;
}

.bc-hero {
    text-align: center;
    padding: 20px 20px 8px;
    max-width: 880px;
    margin: 0 auto;
}

.bc-hero .mt-part-label {
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ai-gray-600);
    margin: 0 0 8px;
}

.bc-hero h1 {
    margin: 0 0 10px;
    color: var(--ai-blue-800);
    font-size: 1.7rem;
}

.bc-hero p {
    margin: 0;
    color: var(--ai-gray-600);
    line-height: 1.5;
}

.bc-split {
    display: grid;
    grid-template-columns: minmax(240px, 0.78fr) minmax(400px, 1.85fr);
    gap: 22px 32px;
    margin: 12px auto 24px;
    padding: 0 20px 0 24px;
    align-items: start;
}

.bc-read {
    position: sticky;
    top: 12px;
    max-height: calc(100vh - 24px);
    overflow-y: auto;
    padding: 2px 6px 20px 0;
}

.bc-read h2 {
    margin: 0 0 10px;
    font-size: 1.05rem;
    color: var(--ai-blue-800);
}

.mt-talk-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mt-talk-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--ai-gray-700);
}

.mt-talk-list .mt-talk-n {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #dbeafe;
    color: #1d4ed8;
    font-size: 0.75rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.mt-talk-list strong { color: var(--ai-gray-800); }
.mt-talk-list a { color: #0f4c9e; font-weight: 600; }

.bc-aside {
    margin-top: 16px;
    padding: 10px 12px;
    background: #fffbeb;
    border: 1px solid #fcd34d;
    border-radius: 8px;
    font-size: 0.84rem;
    color: #78350f;
    line-height: 1.45;
}

.bc-aside a { color: #0f4c9e; font-weight: 600; }

.bc-lab {
    background: #fff;
    border: 1px solid var(--ai-gray-200);
    border-radius: 10px;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
    padding: 16px 16px 18px;
}

.bc-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 10px;
}

.bc-preset,
.bc-mode {
    border: 1px solid var(--ai-gray-200);
    background: var(--ai-gray-50);
    color: var(--ai-gray-700);
    border-radius: 999px;
    padding: 4px 12px;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
}

.bc-preset.is-on {
    background: #eff6ff;
    border-color: #93c5fd;
    color: #1d4ed8;
}

.bc-mode-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 14px;
}

.bc-mode.is-on {
    background: #ecfdf5;
    border-color: #6ee7b7;
    color: #047857;
}

.bc-controls {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 10px 14px;
    margin-bottom: 12px;
}

.bc-controls label,
.bc-l-row label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--ai-gray-600);
}

.bc-controls input[type="number"],
.bc-l-row input[type="number"] {
    font: inherit;
    font-weight: 500;
    color: var(--ai-gray-800);
    padding: 5px 8px;
    border: 1px solid var(--ai-gray-200);
    border-radius: 6px;
    background: #fff;
}

.bc-l-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 12px 16px;
    align-items: end;
    margin: 0 0 12px;
}

.bc-l-row input[type="range"] {
    width: 100%;
    accent-color: #d97706;
    margin-bottom: 8px;
}

.bc-status {
    margin: 0 0 12px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.45;
    font-weight: 600;
}

.bc-status.is-ok {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.bc-status.is-bad {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.bc-status.is-cm {
    background: #eff6ff;
    color: #1e3a8a;
    border: 1px solid #93c5fd;
}

.bc-chart-card {
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
    overflow: hidden;
    background: #fafbfc;
    margin: 0 0 12px;
}

.bc-chart-card h3 {
    margin: 0;
    padding: 8px 12px 0;
    font-size: 0.78rem;
    color: var(--ai-gray-600);
}

.bc-chart-wrap {
    height: 420px;
    padding: 4px 8px 8px;
}

.bc-readouts {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 8px;
    margin: 0 0 12px;
}

.bc-readout {
    background: var(--ai-gray-50);
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
    padding: 8px 10px;
}

.bc-readout-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--ai-gray-500);
}

.bc-readout-value {
    font-family: var(--ai-font-mono);
    font-size: 0.95rem;
    color: var(--ai-blue-800);
}

.bc-readout-value.is-bad { color: #dc2626; }
.bc-readout-value.is-ok { color: #059669; }

.bc-eq {
    margin: 8px 0 12px;
    padding: 8px 10px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid var(--ai-gray-200);
    overflow-x: auto;
}

.bc-aha {
    margin: 0 0 12px;
    padding: 10px 12px;
    background: #eff6ff;
    border-left: 3px solid #2563eb;
    border-radius: 0 8px 8px 0;
    font-size: 0.88rem;
    color: var(--ai-gray-700);
    line-height: 1.45;
}

.bc-next {
    margin-top: 4px;
    padding: 12px 14px;
    background: #f8fafc;
    border: 1px solid var(--ai-gray-200);
    border-radius: 8px;
}

.bc-next h3 {
    margin: 0 0 8px;
    font-size: 0.95rem;
    color: var(--ai-blue-800);
}

.bc-next p {
    margin: 0 0 8px;
    font-size: 0.88rem;
    line-height: 1.5;
    color: var(--ai-gray-700);
}

.bc-next p:last-child { margin-bottom: 0; }
.bc-next a { color: #0f4c9e; font-weight: 600; }

@media (max-width: 900px) {
    .bc-split { grid-template-columns: 1fr; }
    .bc-lab { order: -1; }
    .bc-read { position: static; max-height: none; }
    .bc-l-row { grid-template-columns: 1fr; }
    .bc-chart-wrap { height: 360px; }
}