/* Strategy Copilot — Strategy Builder. Built on design-tokens.css (Copilot block) + shell.css; no colour literals here.
   Desktop ≥ 1200 px: builder column + sticky analysis panel. 768–1199: one column. < 768: tabs, sheets, sticky Save. */

.sb-page { max-width: 92rem; margin: 0 auto; }
.sb-num, .sl-num { font-family: var(--font-num); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.sl-num { text-align: right; white-space: nowrap; }
.sl-pos { color: var(--bullish-text); }
.sl-neg { color: var(--bearish-text); }
.sb-muted { color: var(--text-muted); font-weight: 400; }

/* ── Section nav ───────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-sections {
    position: sticky; top: var(--shell-top-h); z-index: 15; display: flex; gap: 0.25rem; align-items: center;
    margin: -1.25rem -1.5rem 1rem; padding: 0.5rem 1.5rem; background: color-mix(in srgb, var(--bg-primary) 94%, transparent);
    backdrop-filter: blur(8px); border-bottom: 1px solid var(--border-subtle); overflow-x: auto; scrollbar-width: none;
}
.sb-section {
    display: inline-flex; align-items: center; gap: 0.5rem; height: 2rem; padding: 0 0.75rem 0 0.375rem; border-radius: 999px;
    border: 1px solid transparent; background: transparent; color: var(--text-secondary); font: inherit; font-size: 0.8125rem; font-weight: 600;
    cursor: pointer; white-space: nowrap; transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast);
}
.sb-section:hover:not(:disabled) { background: var(--bg-surface); border-color: var(--border-primary); color: var(--text-primary); }
.sb-section:disabled { cursor: default; color: var(--text-muted); }
.sb-section-mark { display: inline-grid; place-items: center; width: 1.25rem; height: 1.25rem; border-radius: 50%; font-size: 0.6875rem; font-weight: 700; border: 1.5px solid var(--border-strong); color: transparent; }
.sb-section--ok .sb-section-mark { background: var(--bullish-bg); border-color: var(--bullish); color: var(--bullish-text); }
.sb-section--bad .sb-section-mark { background: var(--warning-bg); border-color: var(--warning); color: var(--warning); }
.sb-section + .sb-section::before { content: ""; width: 0.75rem; height: 1px; background: var(--border-strong); margin-left: -0.625rem; margin-right: 0.125rem; }
.sb-ptabs { display: none; }

/* ── Workspace ─────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-workspace { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.25rem; align-items: start; }
@media (min-width: 1200px) {
    .sb-workspace { grid-template-columns: minmax(0, 1.08fr) minmax(23rem, 0.92fr); }
    .sb-right { position: sticky; top: calc(var(--shell-top-h) + 3.25rem); max-height: calc(100vh - var(--shell-top-h) - 4.25rem); overflow-y: auto; scrollbar-width: thin; padding-bottom: 0.25rem; }
}
.sb-left, .sb-right { min-width: 0; display: flex; flex-direction: column; gap: 1rem; }

/* ── Cards ─────────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-card { background: var(--card-bg); border: 1px solid var(--card-border); border-radius: var(--radius-card); padding: 1rem 1.125rem 1.125rem; scroll-margin-top: calc(var(--shell-top-h) + 3.75rem); }
.sb-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 0.875rem; }
.sb-card-title { margin: 0; font-size: 0.9375rem; font-weight: 650; color: var(--text-heading); letter-spacing: -0.005em; display: flex; align-items: center; gap: 0.5rem; }
.sb-card-desc { margin: 0.125rem 0 0; font-size: 0.8125rem; color: var(--text-secondary); max-width: 38rem; }
.sb-card-actions { display: flex; gap: 0.5rem; flex-shrink: 0; }
.sb-count { font-family: var(--font-num); font-size: 0.75rem; font-weight: 500; color: var(--text-muted); }
.sb-subhead { margin: 1rem 0 0.5rem; font-size: 0.75rem; font-weight: 650; letter-spacing: 0.04em; text-transform: uppercase; color: var(--text-secondary); }
.sb-hint { margin: 0.5rem 0 0; font-size: 0.75rem; color: var(--text-muted); line-height: 1.5; }
.sb-hint--box { margin-bottom: 0.75rem; padding: 0.5rem 0.75rem; border-radius: 8px; background: var(--bg-inset); border: 1px solid var(--border-subtle); color: var(--text-secondary); }
.sb-rulenote { margin: 0.625rem 0 0; font-size: 0.75rem; color: var(--text-muted); line-height: 1.5; padding-left: 0.625rem; border-left: 2px solid var(--border-primary); }

/* ── Fields ────────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-grid2, .sb-grid3 { display: grid; gap: 0.75rem; align-items: start; }
.sb-grid2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sb-grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.sb-grid3 + .sb-grid3, .sb-grid2 + .sb-grid2 { margin-top: 0.75rem; }
.sb-span2 { grid-column: span 2; }
.sb-f { display: flex; flex-direction: column; gap: 0.3125rem; min-width: 0; margin: 0; }
.sb-f-label, .sb-movefield > .sb-f-label { font-size: 0.75rem; font-weight: 550; color: var(--text-secondary); line-height: 1.2; display: flex; align-items: baseline; gap: 0.375rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-f-label small { font-weight: 400; color: var(--text-muted); font-size: 0.6875rem; overflow: hidden; text-overflow: ellipsis; }
.sb-movefield { display: flex; flex-direction: column; gap: 0.3125rem; margin: 0; }
.sb-pair { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 0.375rem; }
.sb-pair > :only-child { grid-column: 1 / -1; }
.sb-page .qs-input.sb-num { text-align: right; }
.sb-page .qs-input.sb-time { text-align: left; }
.sb-check { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.8125rem; color: var(--text-primary); cursor: pointer; line-height: 1.35; }
.sb-check input, .sb-opt input, .sb-radio input, .sb-toggle input { width: 1rem; height: 1rem; margin: 0.0625rem 0 0; accent-color: var(--accent-primary); flex-shrink: 0; cursor: pointer; }
.sb-check--inline { align-self: end; min-height: var(--ctl-h); align-items: center; }
.sb-check.is-off, .sb-trailrow.is-off .sb-check { cursor: not-allowed; color: var(--text-muted); }
.sb-checks { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.75rem; }
.sb-why { display: block; margin-top: 0.125rem; font-size: 0.75rem; color: var(--warning); font-weight: 500; }
.sb-derived { display: flex; align-items: center; min-height: var(--ctl-h); padding: 0 0.625rem; border-radius: var(--radius-ctl); background: var(--bg-inset); border: 1px dashed var(--border-strong); color: var(--text-heading); font-weight: 600; }
.sb-fielderrors { list-style: none; margin: 0.375rem 0 0; padding: 0; font-size: 0.75rem; color: var(--bearish-text); }
.sb-fielderrors li::before { content: "● "; font-size: 0.5rem; vertical-align: 0.15em; }

/* segmented control */
.sb-seg { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; padding: 2px; gap: 2px; border-radius: var(--radius-ctl); background: var(--bg-sunken); border: 1px solid var(--border-primary); min-height: var(--ctl-h); box-sizing: border-box; }
.sb-seg button { border: 1px solid transparent; background: transparent; border-radius: 4px; color: var(--text-secondary); font: inherit; font-size: 0.8125rem; font-weight: 600; cursor: pointer; padding: 0 0.5rem; white-space: nowrap; transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast), border-color var(--dur-fast); }
.sb-seg button small { font-weight: 400; color: inherit; margin-left: 0.25rem; }
.sb-seg button:hover:not(.is-on) { color: var(--text-primary); }
.sb-seg button.is-on { background: var(--bg-surface); color: var(--accent-text); border-color: var(--border-primary); box-shadow: var(--shadow-sm); }
.sb-seg .sb-seg-b.is-on { color: var(--bullish-text); background: var(--bullish-bg); border-color: color-mix(in srgb, var(--bullish) 45%, transparent); }
.sb-seg .sb-seg-s.is-on { color: var(--bearish-text); background: var(--bearish-bg); border-color: color-mix(in srgb, var(--bearish) 45%, transparent); }
.sb-seg--wide { max-width: 20rem; }

/* stepper */
.sb-stepper { display: grid; grid-template-columns: 2rem minmax(0, 1fr) 2rem; align-items: stretch; height: var(--ctl-h); border: 1px solid var(--input-border); border-radius: var(--radius-ctl); background: var(--input-bg); overflow: hidden; }
.sb-stepper button { border: 0; background: transparent; color: var(--text-secondary); font-size: 1rem; cursor: pointer; transition: background-color var(--dur-fast); }
.sb-stepper button:hover:not(:disabled) { background: var(--bg-surface-hover); color: var(--text-primary); }
.sb-stepper button:disabled { color: var(--border-strong); cursor: not-allowed; }
.sb-stepper > span { display: grid; place-items: center; font-family: var(--font-num); font-variant-numeric: tabular-nums; font-weight: 600; color: var(--text-heading); border-inline: 1px solid var(--border-subtle); font-size: 0.875rem; }
.sb-stepper > span:focus-visible { outline-offset: -2px; }
.sb-strike--stale { color: var(--text-muted) !important; }

/* ── Instrument bar ────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-instrument { display: grid; grid-template-columns: minmax(0, 1fr) minmax(11rem, 14rem); grid-template-areas: "id exp" "facts facts"; align-items: center; gap: 0.625rem 1.25rem; padding: 0.75rem 1rem; }
.sb-inst-id { grid-area: id; }
.sb-inst-expiry { grid-area: exp; }
.sb-inst-id { display: flex; align-items: baseline; gap: 0.875rem; line-height: 1.15; }
.sb-inst-name { font-weight: 700; color: var(--text-heading); font-size: 0.9375rem; display: flex; align-items: baseline; gap: 0.5rem; }
.sb-inst-name small { font-weight: 400; font-size: 0.75rem; color: var(--text-muted); }
.sb-inst-spot { font-size: 1.25rem; font-weight: 600; color: var(--text-heading); margin-top: 0.125rem; }
.sb-inst-facts { grid-area: facts; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.25rem 1rem; margin: 0; padding-top: 0.625rem; border-top: 1px solid var(--border-subtle); }
.sb-inst-facts > div { display: flex; align-items: baseline; justify-content: space-between; gap: 0.5rem; min-width: 0; }
.sb-inst-facts dt { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; white-space: nowrap; }
.sb-inst-facts dd { margin: 0; font-size: 0.8125rem; color: var(--text-primary); white-space: nowrap; }
.sb-inst-expiry { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.6875rem; color: var(--text-muted); font-weight: 500; }
.sb-inst-expiry > span { display: none; }

/* ── Legs ──────────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-legs { display: flex; flex-direction: column; gap: 0.625rem; }
.sb-leg { position: relative; border: 1px solid var(--border-primary); border-radius: 8px; background: var(--bg-surface); padding: 0.625rem 0.75rem 0.25rem 0.875rem; transition: border-color var(--dur-fast), box-shadow var(--dur-fast); }
.sb-leg::before { content: ""; position: absolute; left: -1px; top: -1px; bottom: -1px; width: 3px; border-radius: 8px 0 0 8px; background: var(--border-strong); }
.sb-leg--buy::before { background: var(--bullish); }
.sb-leg--sell::before { background: var(--bearish); }
.sb-leg:hover { border-color: var(--border-strong); }
.sb-leg--open { border-color: color-mix(in srgb, var(--accent-primary) 45%, var(--border-primary)); box-shadow: 0 0 0 3px var(--accent-primary-muted); }
.sb-leg--bad { border-color: var(--warning-border); }
.sb-leg-head { display: flex; align-items: center; gap: 0.5rem; min-height: 1.75rem; margin-bottom: 0.5rem; }
.sb-legsum-text { flex: 1; min-width: 0; font-size: 0.8125rem; color: var(--text-secondary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-legsum-text b { color: var(--text-heading); font-weight: 650; }
.sb-sidetag { display: inline-block; padding: 0 0.375rem; border-radius: 4px; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.03em; line-height: 1.125rem; }
.sb-sidetag--b { color: var(--bullish-text); background: var(--bullish-bg); }
.sb-sidetag--s { color: var(--bearish-text); background: var(--bearish-bg); }
.sb-leg-tools { display: flex; gap: 0.125rem; flex-shrink: 0; }
.sb-iconbtn { display: inline-grid; place-items: center; min-width: 1.75rem; height: 1.75rem; padding: 0 0.375rem; border-radius: 6px; border: 1px solid transparent; background: transparent; color: var(--text-secondary); cursor: pointer; font: inherit; font-size: 0.8125rem; font-weight: 600; }
.sb-iconbtn svg { width: 1rem; height: 1rem; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.sb-iconbtn:hover:not(:disabled) { background: var(--bg-surface-hover); color: var(--text-primary); }
.sb-iconbtn--danger:hover:not(:disabled) { color: var(--bearish-text); background: var(--bearish-bg); }
.sb-iconbtn:disabled { opacity: 0.4; cursor: not-allowed; }
.sb-legsum-edit { display: none; }
.sb-legsheet-head { display: none; }
.sb-leg-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.625rem 0.75rem; }
.sb-price { display: flex; align-items: center; justify-content: flex-end; height: var(--ctl-h); padding: 0 0.625rem; box-sizing: border-box; border-radius: var(--radius-ctl); background: var(--bg-inset); border: 1px solid var(--border-subtle); color: var(--text-heading); font-weight: 600; font-size: 0.875rem; }
.sb-ruletag { display: flex; align-items: center; gap: 0.375rem; width: calc(100% + 1.625rem); margin: 0.625rem -0.75rem 0 -0.875rem; padding: 0.5rem 0.875rem; border: 0; border-top: 1px solid var(--border-subtle); background: transparent; color: var(--accent-text); font: inherit; font-size: 0.8125rem; font-weight: 600; cursor: pointer; text-align: left; border-radius: 0 0 8px 8px; }
.sb-ruletag:hover { background: var(--accent-primary-muted); }
.sb-ruletag-sum { margin-left: auto; font-family: var(--font-num); font-size: 0.75rem; font-weight: 500; color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.sb-chev { width: 0.875rem; height: 0.875rem; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; transition: transform var(--dur) var(--ease-out); flex-shrink: 0; }
.sb-ruletag--open .sb-chev, details[open] > summary .sb-chev { transform: rotate(90deg); }
.sb-legrules { margin: 0 -0.75rem 0 -0.875rem; padding: 0.75rem 0.875rem 0.75rem; border-top: 1px solid var(--border-subtle); background: var(--bg-inset); border-radius: 0 0 8px 8px; animation: sb-reveal var(--dur) var(--ease-out); }
.sb-legrules .sb-grid3 + .sb-grid3 { margin-top: 0.75rem; }
.sb-resolved { display: flex; align-items: center; height: var(--ctl-h); color: var(--text-heading); font-weight: 600; font-size: 0.8125rem; }
.sb-trigger { display: flex; align-items: center; height: var(--ctl-h); padding: 0 0.625rem; border-radius: var(--radius-ctl); border: 1px dashed var(--border-strong); color: var(--text-secondary); font-size: 0.8125rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; box-sizing: border-box; }
.sb-trailrow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; margin-top: 0.75rem; }
.sb-trailfields { display: inline-flex; align-items: center; gap: 0.375rem; font-size: 0.8125rem; color: var(--text-secondary); }
.sb-trailfields .qs-input { width: 4.5rem; }
.sb-trailfields .qs-select { width: 4.5rem; }
.sb-leg-warn { margin: 0.25rem 0 0.375rem; font-size: 0.75rem; color: var(--warning); }
.sb-legs-empty { padding: 1rem; text-align: center; color: var(--text-muted); border: 1px dashed var(--border-strong); border-radius: 8px; font-size: 0.8125rem; }

.sb-legfoot { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 1rem; margin-top: 0.875rem; padding-top: 0.75rem; border-top: 1px solid var(--border-subtle); }
.sb-tool { display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); }
.sb-tool > span { margin-right: 0.25rem; }
.sb-tool button { width: 1.75rem; height: 1.75rem; border-radius: 6px; border: 1px solid var(--border-primary); background: var(--bg-surface); color: var(--text-primary); cursor: pointer; font-size: 0.9375rem; }
.sb-tool button:hover { background: var(--bg-surface-hover); border-color: var(--border-strong); }
.sb-premium { margin-left: auto; display: inline-flex; align-items: baseline; flex-wrap: wrap; justify-content: flex-end; gap: 0.25rem 0.625rem; font-size: 0.8125rem; }
.sb-premium-k { font-size: 0.75rem; color: var(--text-muted); }
.sb-premium b { font-weight: 650; }
.sb-preview-err { color: var(--bearish-text); }
.sb-autonote { margin: 0.5rem 0 0; padding: 0.375rem 0.625rem; border-radius: 6px; background: var(--warning-bg); color: var(--warning); font-size: 0.75rem; }

/* empty state */
.sb-emptystate { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 1.25rem 1rem 1.5rem; border: 1px dashed var(--border-strong); border-radius: 8px; background: var(--bg-inset); margin-bottom: 1rem; }
.sb-emptystate-art { width: 7.5rem; height: 4rem; margin-bottom: 0.5rem; }
.sb-emptystate-art .a { stroke: var(--border-strong); stroke-width: 1.5; fill: none; }
.sb-emptystate-art .b { stroke: var(--accent-primary); stroke-width: 2.5; fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 4 4; }
.sb-emptystate-art .c { fill: var(--accent-primary); }
.sb-emptystate-title { margin: 0; font-weight: 650; font-size: 0.9375rem; color: var(--text-heading); }
.sb-emptystate-text { margin: 0.25rem 0 0; color: var(--text-secondary); font-size: 0.8125rem; max-width: 26rem; }

/* ── Gallery ───────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-gallery-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem 1rem; margin-bottom: 0.75rem; }
.sb-tabs { display: inline-flex; gap: 2px; padding: 2px; border-radius: 8px; background: var(--bg-sunken); border: 1px solid var(--border-primary); }
.sb-tab { height: 1.875rem; padding: 0 0.75rem; border-radius: 6px; border: 1px solid transparent; background: transparent; color: var(--text-secondary); font: inherit; font-size: 0.8125rem; font-weight: 600; cursor: pointer; white-space: nowrap; transition: background-color var(--dur-fast), color var(--dur-fast); }
.sb-tab:hover:not(:disabled):not(.sb-tab--on) { color: var(--text-primary); }
.sb-tab:disabled { cursor: default; color: var(--text-muted); }
.sb-tab--on { background: var(--bg-surface); color: var(--text-heading); border-color: var(--border-primary); box-shadow: var(--shadow-sm); }
.sb-chips { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.sb-chip { height: 1.75rem; padding: 0 0.75rem; border-radius: 999px; border: 1px solid var(--border-primary); background: var(--bg-surface); color: var(--text-secondary); font: inherit; font-size: 0.75rem; font-weight: 600; cursor: pointer; }
.sb-chip:hover { border-color: var(--border-strong); color: var(--text-primary); }
.sb-chip--on { background: var(--accent-primary-soft); border-color: color-mix(in srgb, var(--accent-primary) 40%, transparent); color: var(--accent-text); }
.sb-thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(6.25rem, 1fr)); gap: 0.5rem; }
.sb-thumb { display: flex; flex-direction: column; align-items: stretch; gap: 0.375rem; padding: 0.5rem 0.5rem 0.4375rem; border-radius: 8px; border: 1px solid var(--border-primary); background: var(--bg-surface); cursor: pointer; font: inherit; text-align: center; transition: border-color var(--dur-fast), background-color var(--dur-fast), transform var(--dur-fast) var(--ease-out); }
.sb-thumb:hover { border-color: color-mix(in srgb, var(--accent-primary) 55%, var(--border-primary)); background: var(--bg-inset); }
.sb-thumb:active { transform: translateY(1px); }
.sb-thumb--on { border-color: var(--accent-primary); background: var(--accent-primary-soft); }
.sb-sketch { width: 100%; height: 2.5rem; display: block; background: var(--bg-inset); border-radius: 5px; }
.sb-sketch-zero { stroke: var(--border-strong); stroke-width: 1; vector-effect: non-scaling-stroke; stroke-dasharray: 2 2; }
.sb-sketch-up, .sb-sketch-dn { fill: none; stroke-width: 2; vector-effect: non-scaling-stroke; stroke-linejoin: round; }
.sb-sketch-up { stroke: var(--bullish); }
.sb-sketch-dn { stroke: var(--bearish); }
.sb-thumb-tag { align-self: center; margin-top: -0.125rem; padding: 0.0625rem 0.375rem; border-radius: 999px; background: var(--bg-inset); border: 1px solid var(--border-subtle); color: var(--text-secondary); font-size: 0.625rem; font-weight: 600; line-height: 1.4; white-space: nowrap; }
.sb-thumb-name { font-size: 0.75rem; font-weight: 550; color: var(--text-primary); line-height: 1.25; min-height: 1.875rem; display: grid; place-items: center; }
.sb-list { display: flex; flex-direction: column; gap: 0.375rem; }
.sb-row { display: flex; flex-direction: column; gap: 0.125rem; text-align: left; padding: 0.625rem 0.75rem; border-radius: 8px; border: 1px solid var(--border-primary); background: var(--bg-surface); cursor: pointer; font: inherit; color: var(--text-primary); }
.sb-row:hover { border-color: var(--border-strong); background: var(--bg-inset); }
.sb-row--selected { border-color: var(--accent-primary); background: var(--accent-primary-soft); }
.sb-row-top { display: flex; justify-content: space-between; align-items: center; gap: 0.5rem; }
.sb-row-name { font-weight: 650; font-size: 0.8125rem; }
.sb-row-meta { font-size: 0.75rem; color: var(--text-muted); }
.sb-row-err { font-size: 0.75rem; color: var(--bearish-text); }
.sb-pill { display: inline-flex; align-items: center; height: 1.375rem; padding: 0 0.5rem; border-radius: 999px; font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.03em; text-transform: uppercase; background: var(--neutral-bg); color: var(--text-secondary); white-space: nowrap; }
.sb-pill--live { background: var(--bullish-bg); color: var(--bullish-text); }
.sb-pill--paused { background: var(--warning-bg); color: var(--warning); }

details.sb-gallery-drawer { padding: 0; }
.sb-drawer-summary, .sb-versions > summary, .sb-conditions > summary { display: flex; align-items: center; gap: 0.5rem; list-style: none; cursor: pointer; font-weight: 600; font-size: 0.8125rem; color: var(--text-primary); }
.sb-drawer-summary { padding: 0.75rem 1.125rem; }
.sb-drawer-summary::-webkit-details-marker, .sb-versions > summary::-webkit-details-marker, .sb-conditions > summary::-webkit-details-marker { display: none; }
.sb-drawer-summary:hover { color: var(--accent-text); }
.sb-drawer-body { padding: 0 1.125rem 1rem; }

/* ── Rules cards ───────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-next { display: flex; flex-wrap: wrap; align-items: center; gap: 0.375rem 0.625rem; margin-top: 0.75rem; padding: 0.5rem 0.75rem; border-radius: 8px; background: var(--accent-primary-soft); color: var(--text-primary); font-size: 0.8125rem; }
.sb-next svg { width: 1rem; height: 1rem; fill: none; stroke: var(--accent-text); stroke-width: 1.8; stroke-linecap: round; flex-shrink: 0; }
.sb-next b { color: var(--text-heading); font-weight: 650; }
.sb-next-err { color: var(--bearish-text); }
.sb-next .sb-tag, .sb-banner .sb-tag { white-space: normal; height: auto; min-height: 1.25rem; padding-block: 0.125rem; line-height: 1.3; }
.sb-radios { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.5rem; }
.sb-radio, .sb-opt { display: flex; align-items: flex-start; gap: 0.625rem; padding: 0.625rem 0.75rem; border-radius: 8px; border: 1px solid var(--border-primary); background: var(--bg-surface); cursor: pointer; transition: border-color var(--dur-fast), background-color var(--dur-fast); }
.sb-radio > span, .sb-opt > span { display: flex; flex-direction: column; gap: 0.0625rem; min-width: 0; }
.sb-radio b, .sb-opt b { font-size: 0.8125rem; font-weight: 600; color: var(--text-heading); }
.sb-radio small, .sb-opt small { font-size: 0.75rem; color: var(--text-muted); line-height: 1.35; }
.sb-radio:hover, .sb-opt:hover { border-color: var(--border-strong); }
.sb-radio--on, .sb-opt.is-on { border-color: color-mix(in srgb, var(--accent-primary) 55%, transparent); background: var(--accent-primary-soft); }
.sb-opt.is-off { cursor: not-allowed; background: var(--bg-inset); border-style: dashed; }
.sb-opt.is-off b { color: var(--text-secondary); }
.sb-opt .sb-why { color: var(--warning); }
.sb-optgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(12.5rem, 1fr)); gap: 0.5rem; }
.sb-panel { margin-top: 0.75rem; padding: 0.75rem 0.875rem 0.875rem; border-radius: 8px; border: 1px solid var(--border-primary); background: var(--bg-inset); }
.sb-panel-title { font-size: 0.8125rem; font-weight: 650; color: var(--text-heading); margin-bottom: 0.625rem; }
.sb-conditions > summary { min-height: 1.5rem; }
.sb-conditions[open] > summary { margin-bottom: 0.25rem; }
.sb-reveal { animation: sb-reveal var(--dur) var(--ease-out); }
.sb-versions { margin-top: 0.875rem; }
.sb-versions[open] > summary { margin-bottom: 0.5rem; }

.sb-errorbox { margin-top: 0.875rem; padding: 0.625rem 0.875rem; border-radius: 8px; background: var(--bearish-bg); border: 1px solid color-mix(in srgb, var(--bearish) 30%, transparent); }
.sb-errorbox-title { margin: 0 0 0.25rem; font-weight: 650; font-size: 0.8125rem; color: var(--bearish-text); }
.sb-errors { margin: 0; padding-left: 1.125rem; font-size: 0.75rem; color: var(--text-primary); }

/* ── Save bar ──────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-stickybar {
    position: sticky; bottom: 0.75rem; z-index: 12; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem 0.75rem;
    padding: 0.625rem 0.75rem 0.625rem 1rem; border-radius: var(--radius-card); background: var(--bg-elevated);
    border: 1px solid var(--border-primary); box-shadow: var(--shadow-panel);
}
/* nothing is ever left under the bar: focus, the section nav and scrollIntoView stop above it, and the column ends with room */
html:has(.sb-stickybar) { scroll-padding-bottom: 6rem; }
.sb-left .sb-card, .sb-left .sb-leg { scroll-margin-bottom: 6rem; }
.sb-left:has(.sb-stickybar) { padding-bottom: 0.25rem; }
.sb-stickybar-status { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.8125rem; font-weight: 600; color: var(--text-secondary); }
.sb-stickybar-status i { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--bullish); }
.sb-stickybar-status.is-dirty i { background: var(--warning); }
.sb-stickybar-status.is-dirty { color: var(--text-primary); }
.sb-stickybar-btns { margin-left: auto; display: flex; gap: 0.375rem; align-items: center; }
.sb-stickybar .sb-save { min-width: 5.5rem; }
.sb-soon[aria-disabled="true"] { opacity: 0.55; cursor: not-allowed; }
.sb-savestatus { margin: 0; font-size: 0.75rem; font-weight: 600; color: var(--bullish-text); }
.sb-writenote { flex-basis: 100%; order: -1; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; padding: 0.5rem 0.75rem; border-radius: 8px; background: var(--warning-bg); color: var(--text-primary); font-size: 0.8125rem; border: 1px solid var(--warning-border); }

/* ── Right panel: summary ──────────────────────────────────────────────────────────────────────────────────────────── */
.sb-right .sb-card { box-shadow: var(--shadow-sm); }
.sb-summary-head { display: flex; align-items: center; flex-wrap: wrap; gap: 0.375rem 0.5rem; margin-bottom: 0.5rem; }
.sb-summary-exp { margin-left: auto; font-size: 0.75rem; color: var(--text-secondary); }
.sb-tag { display: inline-flex; align-items: center; gap: 0.25rem; height: 1.25rem; padding: 0 0.4375rem; border-radius: 4px; font-size: 0.6875rem; font-weight: 650; letter-spacing: 0.02em; background: var(--neutral-bg); color: var(--text-secondary); white-space: nowrap; }
.sb-tag--muted { background: var(--neutral-bg); color: var(--text-secondary); font-weight: 550; }
.sb-tag--ok { background: var(--bullish-bg); color: var(--bullish-text); }
.sb-tag--warn { background: var(--warning-bg); color: var(--warning); }
.sb-tag--paper { background: var(--accent-primary-soft); color: var(--accent-text); text-transform: uppercase; letter-spacing: 0.05em; }
.sb-livedot { width: 0.375rem; height: 0.375rem; border-radius: 50%; background: var(--bullish); animation: sb-pulse 2s ease-in-out infinite; }
.sb-sentence { margin: 0 0 0.75rem; font-size: 0.8125rem; line-height: 1.5; color: var(--text-primary); padding: 0.625rem 0.75rem; border-radius: 8px; background: var(--bg-inset); border: 1px solid var(--border-subtle); }
.sb-sentence span + span::before { content: " "; }
.sb-sentence span:first-child { font-weight: 600; color: var(--text-heading); }
.sb-sentence--empty { color: var(--text-muted); font-style: normal; }
.sb-kpis { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.5rem; }
.sb-kpi { display: flex; flex-direction: column; gap: 0.125rem; padding: 0.5rem 0.625rem; border-radius: 8px; border: 1px solid var(--border-subtle); background: var(--bg-surface); min-width: 0; }
.sb-kpi-k { font-size: 0.6875rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.04em; }
.sb-kpi-v { font-family: var(--font-num); font-variant-numeric: tabular-nums; font-size: 1.0625rem; font-weight: 650; color: var(--text-heading); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; animation: sb-flash 900ms var(--ease-out); border-radius: 3px; }
.sb-kpi-v--sm { font-size: 0.8125rem; display: flex; flex-direction: column; white-space: normal; }
.sb-kpi small { font-size: 0.6875rem; color: var(--text-muted); }
.sb-kpi--up { background: var(--bullish-bg); border-color: transparent; }
.sb-kpi--up .sb-kpi-v { color: var(--bullish-text); }
.sb-kpi--dn { background: var(--bearish-bg); border-color: transparent; }
.sb-kpi--dn .sb-kpi-v { color: var(--bearish-text); }
.sb-be small { color: var(--text-muted); font-size: 0.6875rem; margin-left: 0.125rem; }
.sb-statgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.5rem 0.75rem; margin: 0.625rem 0 0; padding-top: 0.625rem; border-top: 1px solid var(--border-subtle); }
.sb-statgrid > div { min-width: 0; }
.sb-statgrid dt { font-size: 0.6875rem; color: var(--text-muted); font-weight: 500; }
.sb-statgrid dt small { font-size: 0.625rem; }
.sb-statgrid dd { margin: 0.0625rem 0 0; font-size: 0.8125rem; color: var(--text-heading); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sb-stats--ghost .sb-kpi { border-style: dashed; }
.sb-stats--ghost .sb-kpi-v { color: var(--text-muted) !important; animation: none; }
.sb-source { display: flex; align-items: flex-start; gap: 0.375rem; margin: 0.75rem 0 0; font-size: 0.6875rem; color: var(--text-muted); line-height: 1.45; }
.sb-source svg { width: 0.875rem; height: 0.875rem; margin-top: 0.0625rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; flex-shrink: 0; }
.sb-banner { margin-top: 0.625rem; padding: 0.5rem 0.75rem; border-radius: 8px; font-size: 0.8125rem; border: 1px solid transparent; }
.sb-banner--warn { background: var(--warning-bg); color: var(--text-primary); border-color: var(--warning-border); }
.sb-banner--bad { background: var(--bearish-bg); color: var(--bearish-text); border-color: color-mix(in srgb, var(--bearish) 30%, transparent); }
.sb-banner--info { background: var(--accent-primary-soft); color: var(--text-primary); margin: 0 0 0.75rem; }
.sb-page > .sb-banner { margin: 0 0 1rem; }
.sb-preview-fail { padding: 0.75rem 0.875rem; border-radius: 8px; background: var(--bearish-bg); border: 1px solid color-mix(in srgb, var(--bearish) 25%, transparent); }
.sb-preview-fail-msg { margin: 0; font-weight: 650; color: var(--bearish-text); font-size: 0.8125rem; }
.sb-preview-fail-fix { margin: 0.25rem 0 0; font-size: 0.8125rem; color: var(--text-primary); }
.sb-disclaimer { margin: -0.25rem 0.25rem 0; font-size: 0.6875rem; color: var(--text-muted); }

/* skeletons */
.sb-skel { display: block; height: 0.625rem; width: 60%; border-radius: 4px; background: linear-gradient(90deg, var(--skeleton) 0%, var(--skeleton-hi) 50%, var(--skeleton) 100%); background-size: 200% 100%; animation: app-shimmer 1.4s linear infinite; }
.sb-skel--big { height: 1.125rem; width: 85%; margin-top: 0.375rem; }
.sb-skel--line { width: 100%; height: 0.75rem; margin-top: 0.75rem; }
.sb-next .sb-skel--line { margin: 0; width: 16rem; }
.sb-skel--row { height: 3.25rem; width: 100%; border-radius: 8px; }
.sb-stats--loading .sb-kpi { background: var(--bg-inset); border-color: var(--border-subtle); }
.sb-chain-skel { display: flex; flex-direction: column; gap: 0.25rem; padding: 0.5rem 0; }
.sb-dotpulse { display: inline-block; width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--accent-primary); animation: sb-pulse 1s ease-in-out infinite; }

/* ── Right panel: analysis ─────────────────────────────────────────────────────────────────────────────────────────── */
.sb-analysis > .sb-tabs { margin-bottom: 0.75rem; }
.sb-graph-tools { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.5rem; }
.sb-graph-tags, .sb-graph-right { display: inline-flex; align-items: center; flex-wrap: wrap; gap: 0.375rem 0.75rem; }
.sb-toggle { display: inline-flex; align-items: center; gap: 0.375rem; font-size: 0.75rem; color: var(--text-secondary); cursor: pointer; }
.sb-toggle small { color: var(--text-muted); font-family: var(--font-num); }
.sb-payoff { margin: 0; }
.sb-payoff-legend { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem 1rem; font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 0.25rem; }
.sb-payoff-axes { margin-left: auto; color: var(--text-muted); font-size: 0.6875rem; }
.sb-lkey { display: inline-block; width: 1.25rem; height: 0; border-top: 2px solid var(--bullish); vertical-align: middle; margin-right: 0.375rem; }
.sb-lkey--t0 { border-top: 2px dashed var(--chart-t0); }
.sb-payoff-svg { display: block; overflow: visible; }
.sb-payoff-svg .sb-grid, .sb-payoff-ghost .sb-grid { stroke: var(--chart-grid); stroke-width: 1; vector-effect: non-scaling-stroke; }
.sb-payoff-svg .sb-zero, .sb-payoff-ghost .sb-zero { stroke: var(--text-muted); stroke-width: 1; vector-effect: non-scaling-stroke; }
.sb-area-up { fill: var(--chart-up-fill); }
.sb-area-dn { fill: var(--chart-dn-fill); }
.sb-line-up, .sb-line-dn, .sb-line-t0 { fill: none; vector-effect: non-scaling-stroke; stroke-linejoin: round; stroke-linecap: round; }
.sb-line-up { stroke: var(--bullish); stroke-width: 2.25; }
.sb-line-dn { stroke: var(--bearish); stroke-width: 2.25; }
.sb-line-t0 { stroke: var(--chart-t0); stroke-width: 1.5; stroke-dasharray: 5 4; }
.sb-sd { stroke: var(--text-muted); stroke-width: 1; stroke-dasharray: 2 4; vector-effect: non-scaling-stroke; opacity: 0.7; }
.sb-be-line { stroke: var(--warning); stroke-width: 1; stroke-dasharray: 3 3; vector-effect: non-scaling-stroke; }
.sb-now { stroke: var(--accent-text); stroke-width: 1.25; vector-effect: non-scaling-stroke; }
.sb-target { stroke: var(--text-secondary); stroke-width: 1; stroke-dasharray: 6 3; vector-effect: non-scaling-stroke; }
.sb-axisline { stroke: var(--chart-axis); stroke-width: 1; }
.sb-axis { font-family: var(--font-num); font-size: var(--text-2xs); fill: var(--text-muted); font-variant-numeric: tabular-nums; paint-order: stroke; stroke: var(--bg-surface); stroke-width: 3px; stroke-linejoin: round; }
.sb-axis--x { fill: var(--text-secondary); stroke: none; }
.sb-axis--sd { fill: var(--text-muted); }
.sb-axis--be { fill: var(--warning); font-weight: 600; }
.sb-axis--now { fill: var(--accent-text); font-weight: 600; }
.sb-axis--target { fill: var(--text-secondary); }
/* the label band above the plot: current-price pill, BE / Target chips, SD names (js/payoff.js re-places them) */
.sb-lbl { pointer-events: none; }
.sb-lbl-bg { fill: var(--bg-surface); stroke: var(--border-subtle); stroke-width: 1; }
.sb-lbl-text { font-family: var(--font-num); font-size: var(--text-2xs); font-variant-numeric: tabular-nums; fill: var(--text-muted); }
.sb-lbl--sd .sb-lbl-bg { fill: transparent; stroke: none; }
.sb-lbl--be .sb-lbl-bg { fill: var(--warning-bg); stroke: var(--warning); stroke-opacity: 0.45; }
.sb-lbl--be .sb-lbl-text { fill: var(--warning); font-weight: 600; }
.sb-lbl--now .sb-lbl-bg { fill: var(--accent-primary-muted); stroke: var(--accent-text); stroke-opacity: 0.6; }
.sb-lbl--now .sb-lbl-text { fill: var(--accent-text); font-weight: 600; }
.sb-lbl--target .sb-lbl-text { fill: var(--text-secondary); }
/* the crosshair (js/payoff.js): pointer or ←/→ when the chart has focus */
.sb-payoff:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 4px; border-radius: 6px; }
.sb-payoff-box { position: relative; }
.sb-xhair-line { stroke: var(--text-secondary); stroke-width: 1; stroke-dasharray: 3 3; }
.sb-xhair-dot { stroke: var(--bg-surface); stroke-width: 1.5; }
.sb-xhair-dot--exp { fill: var(--bullish); }
.sb-xhair-dot--exp.is-dn { fill: var(--bearish); }
.sb-xhair-dot--t0 { fill: var(--chart-t0); }
.sb-xhair-tip { position: absolute; left: 0; top: 0; z-index: 2; pointer-events: none; display: grid; gap: 0.125rem; min-width: 9.5rem;
    padding: 0.375rem 0.5rem; border-radius: 6px; background: var(--bg-elevated); border: 1px solid var(--border-primary); box-shadow: var(--shadow-md);
    font-size: 0.75rem; color: var(--text-secondary); white-space: nowrap; }
.sb-xhair-tip[hidden] { display: none; }
.sb-xhair-row { display: flex; justify-content: space-between; gap: 0.75rem; }
.sb-xhair-row b { font-family: var(--font-num); font-variant-numeric: tabular-nums; color: var(--text-primary); }
.sb-xhair-row b.is-up { color: var(--bullish-text, var(--bullish)); }
.sb-xhair-row b.is-dn { color: var(--bearish-text, var(--bearish)); }
@media (prefers-reduced-motion: no-preference) { .sb-xhair-tip { transition: transform 60ms linear; } }
.sb-payoff--ghost { position: relative; height: 18rem; border-radius: 8px; background: var(--bg-inset); border: 1px solid var(--border-subtle); overflow: hidden; }
.sb-payoff-ghost { position: absolute; inset: 0; width: 100%; height: 100%; }
.sb-ghost-line { fill: none; stroke: var(--border-strong); stroke-width: 2; stroke-dasharray: 6 5; vector-effect: non-scaling-stroke; }
.sb-payoff--ghost.is-loading .sb-ghost-line { stroke: var(--accent-primary); opacity: 0.45; animation: sb-dash 1.2s linear infinite; }
.sb-payoff-ghost-text { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.5rem 0.875rem; border-radius: 999px; background: var(--bg-surface); border: 1px solid var(--border-primary); color: var(--text-secondary); font-size: 0.8125rem; font-weight: 600; box-shadow: var(--shadow-sm); white-space: nowrap; }
.sb-sliders { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem 1.25rem; margin-top: 0.75rem; }
.sb-slider { display: flex; flex-direction: column; gap: 0.25rem; }
.sb-slider-head { display: flex; justify-content: space-between; align-items: baseline; font-size: 0.75rem; color: var(--text-secondary); }
.sb-slider-head b { color: var(--text-heading); font-weight: 650; }
.sb-slider-head small { color: var(--text-muted); font-weight: 500; margin-left: 0.25rem; }
.sb-slider input[type="range"] { width: 100%; accent-color: var(--accent-primary); margin: 0; height: 1.25rem; }
.sb-readout { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 0.875rem; margin-top: 0.625rem; padding: 0.5rem 0.75rem; border-radius: 8px; background: var(--bg-inset); font-size: 0.8125rem; color: var(--text-secondary); }
.sb-readout b { color: var(--text-heading); }
.sb-readout small { color: var(--text-muted); font-size: 0.6875rem; flex-basis: 100%; }
.sb-tablewrap { overflow-x: auto; border: 1px solid var(--border-subtle); border-radius: 8px; }
.sb-table { font-size: 0.8125rem; }
.sb-table td, .sb-table th { white-space: nowrap; }
.sb-pnl--be td { background: var(--warning-bg); }
.sb-row--bad td { background: var(--bearish-bg); }
.sb-row--noiv td { color: var(--text-muted); }
.sb-greeks-total td { font-weight: 650; border-top: 1px solid var(--border-strong); }
.sb-ver--current td { background: var(--accent-primary-soft); }

/* ── Toast ─────────────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-toast { position: fixed; left: 50%; bottom: 1.5rem; transform: translateX(-50%); z-index: 80; display: inline-flex; align-items: center; gap: 1rem; padding: 0.625rem 0.625rem 0.625rem 1rem; border-radius: 10px; background: var(--text-heading); color: var(--bg-surface); font-size: 0.8125rem; font-weight: 550; box-shadow: var(--shadow-xl); animation: sb-toast var(--dur) var(--ease-out); }
.sb-toast-undo { border: 0; background: transparent; color: inherit; font: inherit; font-weight: 700; text-decoration: underline; text-underline-offset: 3px; padding: 0.375rem 0.625rem; border-radius: 6px; cursor: pointer; }
.sb-toast-undo:hover { background: color-mix(in srgb, var(--bg-surface) 15%, transparent); }

/* ── Chain modal ───────────────────────────────────────────────────────────────────────────────────────────────────── */
.sb-modal-backdrop { position: fixed; inset: 0; z-index: 90; background: var(--scrim); animation: sb-fade var(--dur) var(--ease-out); }
.sb-modal { position: fixed; z-index: 91; left: 50%; top: 50%; transform: translate(-50%, -50%); width: min(48rem, calc(100vw - 2rem)); max-height: min(86vh, 52rem); display: flex; flex-direction: column; background: var(--bg-elevated); border: 1px solid var(--border-primary); border-radius: 12px; box-shadow: var(--shadow-xl); animation: sb-pop var(--dur) var(--ease-out); }
.sb-modal-head, .sb-modal-foot { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; }
.sb-modal-head { justify-content: space-between; border-bottom: 1px solid var(--border-subtle); }
.sb-modal-title { display: flex; flex-direction: column; font-weight: 650; color: var(--text-heading); }
.sb-modal-title small { font-weight: 400; color: var(--text-muted); font-size: 0.75rem; }
.sb-modal-body { overflow: auto; padding: 0 1rem; flex: 1; }
.sb-modal-foot { justify-content: flex-end; border-top: 1px solid var(--border-subtle); font-size: 0.8125rem; color: var(--text-secondary); }
.sb-modal-foot > span { margin-right: auto; }
.sb-chain th { position: sticky; top: 0; }
.sb-chain td { padding: 0.3125rem 0.5rem; }
.sb-chain-k { text-align: center; font-weight: 650; color: var(--text-heading); }
.sb-chain--atm td { background: var(--accent-primary-soft); }
.sb-chain--call-itm td:nth-child(-n+2), .sb-chain--put-itm td:nth-last-child(-n+2) { background: var(--bg-inset); }
.sb-chain-side { display: flex; align-items: center; justify-content: flex-end; gap: 0.5rem; }
.sb-chain-side--put { justify-content: flex-start; }
.sb-chain-bs { display: inline-flex; gap: 2px; }
.sb-bs { width: 1.625rem; height: 1.625rem; border-radius: 5px; font-size: 0.75rem; font-weight: 700; cursor: pointer; border: 1px solid var(--border-primary); background: var(--bg-surface); }
.sb-bs--b { color: var(--bullish-text); }
.sb-bs--s { color: var(--bearish-text); }
.sb-bs--b.sb-bs--on { background: var(--bullish); border-color: var(--bullish); color: var(--text-on-accent); }
.sb-bs--s.sb-bs--on { background: var(--bearish); border-color: var(--bearish); color: var(--text-on-accent); }

/* ── Motion ────────────────────────────────────────────────────────────────────────────────────────────────────────── */
@keyframes sb-reveal { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
/* a ring only: tinting the background behind the value dropped the coloured KPIs under 4.5:1 mid-flash (axe) */
@keyframes sb-flash { 0% { box-shadow: 0 0 0 3px var(--accent-primary-muted); } 100% { box-shadow: 0 0 0 3px transparent; } }
@keyframes sb-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }
@keyframes sb-dash { to { stroke-dashoffset: -22; } }
@keyframes sb-fade { from { opacity: 0; } }
@keyframes sb-pop { from { opacity: 0; transform: translate(-50%, -48%) scale(0.98); } }
@keyframes sb-toast { from { opacity: 0; transform: translate(-50%, 8px); } }

/* ── Medium (768–1199): one column, analysis after the builder ─────────────────────────────────────────────────────── */
@media (max-width: 1199.98px) {
}

/* ── Phone (< 768) ─────────────────────────────────────────────────────────────────────────────────────────────────── */
@media (max-width: 767.98px) {
    html[data-theme] { --ctl-h: var(--ctl-h-touch); }
    .sb-page { padding-bottom: 4.5rem; }
    .sb-sections { display: none; }
    .sb-ptabs {
        position: sticky; top: var(--shell-top-h); z-index: 15; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px;
        margin: -0.75rem -1rem 0.75rem; padding: 0.5rem 1rem; background: color-mix(in srgb, var(--bg-primary) 94%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border-subtle);
    }
    .sb-ptab { height: 2.75rem; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--text-secondary); font: inherit; font-size: 0.8125rem; font-weight: 650; cursor: pointer; }
    .sb-ptab--on { background: var(--bg-surface); color: var(--accent-text); border-color: var(--border-primary); box-shadow: var(--shadow-sm); }
    .sb-ptab--legs .sb-pt:not(.sb-pt-legs), .sb-ptab--rules .sb-pt:not(.sb-pt-rules), .sb-ptab--payoff .sb-pt:not(.sb-pt-payoff), .sb-ptab--summary .sb-pt:not(.sb-pt-summary) { display: none; }
    .sb-ptab--legs .sb-disclaimer, .sb-ptab--rules .sb-disclaimer { display: none; }
    .sb-workspace, .sb-left, .sb-right { gap: 0.75rem; }
    .sb-card { padding: 0.875rem; }
    .sb-card-head { flex-direction: column; gap: 0.625rem; }
    .sb-card-actions { width: 100%; }
    .sb-card-actions .qs-btn { flex: 1; }
    .sb-grid3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sb-grid2 { grid-template-columns: minmax(0, 1fr); }
    .sb-span2 { grid-column: 1 / -1; }
    .sb-instrument { grid-template-columns: minmax(0, 1fr); grid-template-areas: "id" "exp" "facts"; }
    .sb-inst-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.375rem 1.25rem; }

    /* a leg is its summary line + Edit; the editor is a full-screen sheet */
    .sb-leg { padding: 0.375rem 0.375rem 0.375rem 0.75rem; }
    .sb-leg-head { margin: 0; min-height: 2.75rem; }
    .sb-legsum-text { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
    .sb-legsum-edit { display: inline-grid; height: 2.75rem; min-width: 3.25rem; border: 1px solid var(--border-primary); color: var(--accent-text); }
    .sb-leg-tools .sb-iconbtn { width: 2.75rem; height: 2.75rem; }
    .sb-leg:not(.sb-leg--open) .sb-leg-tools .sb-iconbtn:not(.sb-legsum-edit):not(.sb-iconbtn--danger) { display: none; }
    .sb-leg:not(.sb-leg--open) .sb-leg-grid, .sb-leg:not(.sb-leg--open) .sb-ruletag, .sb-leg:not(.sb-leg--open) .sb-leg-warn { display: none; }
    .sb-leg--open { position: fixed; inset: 0; z-index: 70; margin: 0; border-radius: 0; border: 0; box-shadow: none; overflow-y: auto; padding: 0 1rem 2rem; animation: sb-sheet var(--dur) var(--ease-out); }
    .sb-leg--open::before { display: none; }
    .sb-leg--open .sb-legsheet-head { display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 2; margin: 0 -1rem 0.75rem; padding: 0.5rem 1rem; min-height: 3.5rem; box-sizing: border-box; background: var(--bg-surface); border-bottom: 1px solid var(--border-primary); }
    .sb-legsheet-title { font-weight: 700; color: var(--text-heading); }
    .sb-leg--open .sb-legsum-edit { display: none; }
    .sb-leg--open .sb-leg-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sb-leg--open .sb-ruletag { margin: 0.75rem -1rem 0; width: calc(100% + 2rem); padding: 0.75rem 1rem; min-height: 2.75rem; }
    .sb-leg--open .sb-legrules { margin: 0 -1rem; padding: 0.875rem 1rem; border-radius: 0; }
    .sb-stepper { grid-template-columns: 2.75rem minmax(0, 1fr) 2.75rem; }
    .sb-legfoot { gap: 0.5rem; }
    .sb-tool button { width: 2.75rem; height: 2.75rem; }
    .sb-premium { margin-left: 0; justify-content: flex-start; flex-basis: 100%; }
    .sb-thumbs { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .sb-chip, .sb-tab { min-height: 2.75rem; }
    .sb-kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sb-kpis .sb-kpi:nth-child(3) { grid-column: 1 / -1; }
    .sb-kpi-v--sm { flex-direction: row; flex-wrap: wrap; gap: 0 0.75rem; }
    .sb-statgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sb-sliders { grid-template-columns: minmax(0, 1fr); }
    .sb-radios { grid-template-columns: minmax(0, 1fr); }
    .sb-optgrid { grid-template-columns: minmax(0, 1fr); }
    .sb-trailfields { flex-wrap: wrap; }
    .sb-payoff--ghost { height: 15rem; }
    .sb-payoff-axes { margin-left: 0; flex-basis: 100%; }
    .sb-hide-phone { display: none !important; }
    .sb-stickybar {
        position: fixed; left: 0; right: 0; bottom: calc(var(--shell-tab-h) + env(safe-area-inset-bottom)); z-index: 35;
        border-radius: 0; border-width: 1px 0 0; padding: 0.5rem 1rem; box-shadow: 0 -6px 16px -12px rgba(0, 0, 0, 0.3);
    }
    .sb-stickybar-status { font-size: 0.75rem; flex: 1; min-width: 0; }
    .sb-stickybar .sb-savestatus { display: none; }
    .sb-toast { bottom: calc(var(--shell-tab-h) + 4.5rem); width: calc(100vw - 2rem); justify-content: space-between; box-sizing: border-box; }
    .sb-modal { inset: 0; transform: none; width: 100vw; max-height: none; border-radius: 0; animation: sb-sheet var(--dur) var(--ease-out); }
    .sb-bs { width: 2.25rem; height: 2.25rem; }
}
@keyframes sb-sheet { from { opacity: 0; transform: translateY(12px); } }