:root {
    --quote-bg: #09111f;
    --quote-panel: rgba(12, 24, 44, 0.88);
    --quote-panel-strong: rgba(15, 30, 54, 0.96);
    --quote-line: rgba(148, 163, 184, 0.18);
    --quote-text: #e5eefc;
    --quote-muted: #9fb0ca;
    --quote-accent: #f97316;
    --quote-accent-soft: rgba(249, 115, 22, 0.16);
    --quote-blue: #38bdf8;
    --quote-danger: #fb7185;
    --quote-success: #34d399;
}
* { box-sizing: border-box; }
body.lab-sandbox-page--dark {
    margin: 0;
    background:
        radial-gradient(circle at 20% 10%, rgba(56, 189, 248, 0.12), transparent 28%),
        radial-gradient(circle at 80% 0%, rgba(249, 115, 22, 0.12), transparent 24%),
        linear-gradient(180deg, #07101d, #0a1220 42%, #08111e 100%);
    color: var(--quote-text);
    font-family: Arial, sans-serif;
}
button,
input,
textarea {
    font: inherit;
}
.quote-demo-shell {
    width: min(1440px, calc(100% - 32px));
    margin: 0 auto;
    padding: 32px 0 40px;
}
.quote-demo-topbar {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    align-items: flex-start;
    margin-bottom: 24px;
}
.quote-demo-back,
.quote-demo-eyebrow {
    display: inline-flex;
    margin: 0 0 10px;
    color: var(--quote-blue);
}
.quote-demo-eyebrow {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.quote-demo-topbar h1 {
    margin: 0 0 14px;
    font-size: clamp(34px, 4vw, 56px);
    line-height: 1.02;
}
.quote-demo-lead {
    max-width: 780px;
    margin: 0;
    color: var(--quote-muted);
    font-size: 18px;
}
.quote-demo-topbar__actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 12px;
}
.quote-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0 16px;
    border: 1px solid transparent;
    border-radius: 14px;
    background: var(--quote-panel-strong);
    color: var(--quote-text);
    cursor: pointer;
    transition: 0.18s ease;
}
.quote-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 255, 255, 0.16);
}
.quote-btn--primary {
    background: linear-gradient(135deg, #f97316, #fb923c);
    color: #fff;
}
.quote-btn--ghost {
    border-color: rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.7);
}
.quote-demo-alert,
.quote-panel,
.quote-summary-card {
    background: var(--quote-panel);
    border: 1px solid var(--quote-line);
    border-radius: 22px;
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.22);
    backdrop-filter: blur(18px);
}
.quote-demo-alert {
    margin-bottom: 22px;
    padding: 16px 18px;
    color: var(--quote-muted);
}
.quote-demo-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
    gap: 20px;
    align-items: start;
}
.quote-editor,
.quote-preview-column {
    display: grid;
    gap: 20px;
}
.quote-panel {
    padding: 22px;
}
.quote-panel__header {
    margin-bottom: 18px;
}
.quote-panel__header--split {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
}
.quote-panel__eyebrow,
.quote-preview-header__eyebrow {
    margin: 0 0 8px;
    color: var(--quote-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.quote-panel h2,
.quote-preview-panel h2,
.quote-preview-note h3 {
    margin: 0;
}
.quote-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.quote-field {
    display: grid;
    gap: 8px;
}
.quote-field span {
    color: var(--quote-muted);
    font-size: 14px;
}
.quote-field input,
.quote-field textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 14px;
    background: rgba(7, 16, 29, 0.8);
    color: var(--quote-text);
}
.quote-field textarea {
    min-height: 140px;
    resize: vertical;
}
.quote-table-wrap,
.quote-preview-table-wrap {
    overflow-x: auto;
}
.quote-table,
.quote-preview-table {
    width: 100%;
    border-collapse: collapse;
}
.quote-table th,
.quote-table td,
.quote-preview-table th,
.quote-preview-table td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--quote-line);
    text-align: left;
    vertical-align: top;
}
.quote-table th,
.quote-preview-table th {
    color: var(--quote-muted);
    font-size: 13px;
    font-weight: 700;
}
.quote-table td input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 12px;
    background: rgba(7, 16, 29, 0.78);
    color: var(--quote-text);
}
.quote-table td:last-child,
.quote-table th:last-child {
    text-align: right;
}
.quote-row-total {
    color: var(--quote-blue);
    font-weight: 700;
    white-space: nowrap;
}
.quote-row-remove {
    min-height: 38px;
    padding: 0 12px;
    border: 1px solid rgba(251, 113, 133, 0.26);
    border-radius: 12px;
    background: rgba(127, 29, 29, 0.18);
    color: #ffd8df;
    cursor: pointer;
}
.quote-summary-cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.quote-summary-card {
    padding: 18px;
}
.quote-summary-card span {
    display: block;
    margin-bottom: 8px;
    color: var(--quote-muted);
    font-size: 13px;
}
.quote-summary-card strong {
    display: block;
    font-size: 26px;
    line-height: 1.08;
}
.quote-summary-card small {
    display: block;
    margin-top: 8px;
    color: var(--quote-muted);
}
.quote-summary-card--accent strong { color: #fff; }
.quote-summary-card--profit strong { color: var(--quote-success); }
.quote-summary-card--warning strong { color: #ffd166; }
.quote-summary-card--cost strong { color: #c7d2fe; }
.quote-preview-panel {
    padding: 24px;
}
.quote-preview-header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    margin-bottom: 18px;
}
.quote-preview-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 34px;
    padding: 0 12px;
    border-radius: 999px;
    background: var(--quote-accent-soft);
    color: #ffd7bf;
    text-transform: uppercase;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
}
.quote-preview-meta {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}
.quote-preview-meta div {
    padding: 14px;
    border: 1px solid var(--quote-line);
    border-radius: 16px;
    background: rgba(8, 18, 34, 0.6);
}
.quote-preview-meta span {
    display: block;
    margin-bottom: 8px;
    color: var(--quote-muted);
    font-size: 13px;
}
.quote-preview-meta strong {
    display: block;
}
.quote-preview-table tfoot td {
    font-weight: 700;
}
.quote-preview-note {
    margin-top: 18px;
    padding: 18px;
    border: 1px solid var(--quote-line);
    border-radius: 18px;
    background: rgba(8, 18, 34, 0.6);
}
.quote-preview-note p {
    margin-bottom: 0;
    color: var(--quote-muted);
}
@media (max-width: 1100px) {
    .quote-demo-grid {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 780px) {
    .quote-demo-shell {
        width: min(100%, calc(100% - 24px));
        padding-top: 24px;
    }
    .quote-demo-topbar,
    .quote-panel__header--split {
        flex-direction: column;
        align-items: stretch;
    }
    .quote-form-grid,
    .quote-summary-cards,
    .quote-preview-meta {
        grid-template-columns: 1fr;
    }
}
@media print {
    body.lab-sandbox-page--dark {
        background: #fff;
        color: #111827;
    }
    .quote-demo-shell {
        width: 100%;
        padding: 0;
    }
    .quote-demo-topbar__actions,
    .quote-demo-alert,
    .quote-editor,
    .quote-demo-back,
    .quote-demo-eyebrow {
        display: none !important;
    }
    .quote-demo-grid {
        display: block;
    }
    .quote-summary-cards {
        margin-bottom: 16px;
    }
    .quote-panel,
    .quote-summary-card {
        background: #fff;
        color: #111827;
        border-color: #d1d5db;
        box-shadow: none;
    }
}