.mq-bs {
	--calc-danger: #e2574c;

	background: var(--mq-bg-deep);
	color: var(--mq-text);
	font-family: var(--font-mono);
	font-size: 13px;
	line-height: 1.45;
	-webkit-font-smoothing: antialiased;
	border: 1px solid var(--mq-border);
	border-radius: var(--mq-radius);
	padding: 22px 20px 40px;
}
.mq-bs ::selection { background: var(--mq-accent); color: #fff; }

.mq-bs .shell { display: flex; flex-direction: column; gap: 18px; }

.mq-bs .grid-main { display: grid; grid-template-columns: 300px 1fr; gap: 18px; align-items: start; }
@media (max-width: 860px) { .mq-bs .grid-main { grid-template-columns: 1fr; } }
.mq-bs .col-right { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.mq-bs .panel { background: var(--mq-bg); border: 1px solid var(--mq-border); border-radius: 2px; }
.mq-bs .panel-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 14px; border-bottom: 1px solid var(--mq-border-soft); background: var(--mq-surface); }
.mq-bs .panel-head h2 { margin: 0; font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--mq-text-dim); }
.mq-bs .panel-body { padding: 14px; }

.mq-bs .field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 14px; }
.mq-bs .field:last-child { margin-bottom: 0; }
.mq-bs .field[hidden] { display: none; }
.mq-bs .field-label { display: flex; align-items: center; gap: 5px; font-size: 10.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--mq-text-dim); }
.mq-bs .field-label .unit { color: var(--mq-text-faint); text-transform: none; letter-spacing: 0; }

.mq-bs input[type="number"] {
	width: 100%;
	background: var(--mq-bg-deep);
	border: 1px solid var(--mq-border);
	border-radius: 2px;
	color: var(--mq-text);
	font-family: var(--font-mono);
	font-variant-numeric: tabular-nums;
	font-size: 14px;
	padding: 8px 9px;
	outline: none;
}
.mq-bs input[type="number"]:focus { border-color: var(--mq-accent-bright); box-shadow: 0 0 0 1px var(--mq-accent-bright) inset, 0 0 8px rgba(77,143,224,.25); }
.mq-bs input[type="number"].invalid { border-color: var(--calc-danger); box-shadow: 0 0 0 1px var(--calc-danger) inset; }

.mq-bs .field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.mq-bs .info { position: relative; display: inline-flex; }
.mq-bs .info button { all: unset; width: 14px; height: 14px; border-radius: 50%; border: 1px solid var(--mq-text-faint); color: var(--mq-text-faint); font-size: 9.5px; line-height: 1; display: flex; align-items: center; justify-content: center; cursor: help; }
.mq-bs .info button:focus-visible { outline: 2px solid var(--mq-accent-bright); outline-offset: 2px; }
.mq-bs .info .tip { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%); width: 220px; background: var(--mq-surface); border: 1px solid var(--mq-border); border-radius: 3px; padding: 9px 10px; font-family: var(--font-body); font-size: 11.5px; line-height: 1.5; color: var(--mq-text-dim); opacity: 0; visibility: hidden; transition: opacity .12s ease; z-index: 5; pointer-events: none; }
.mq-bs .info:hover .tip, .mq-bs .info button:focus-visible ~ .tip { opacity: 1; visibility: visible; }

.mq-bs .warn { display: none; font-family: var(--font-body); font-size: 11.5px; color: var(--calc-danger); margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--mq-border-soft); }
.mq-bs .warn.show { display: block; }

/* Call/Put toggle */
.mq-bs .type-toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.mq-bs .type-btn {
	font-family: var(--font-mono);
	font-size: 12.5px;
	font-weight: 700;
	letter-spacing: .04em;
	padding: 9px 0;
	background: var(--mq-bg-deep);
	border: 1px solid var(--mq-border);
	border-radius: 2px;
	color: var(--mq-text-dim);
	cursor: pointer;
	transition: color .15s ease, border-color .15s ease, background .15s ease;
}
.mq-bs .type-btn:hover { color: var(--mq-text); }
.mq-bs .type-btn.active { color: #fff; background: var(--mq-accent); border-color: var(--mq-accent-bright); }
.mq-bs .type-btn:focus-visible { outline: 2px solid var(--mq-accent-bright); outline-offset: 2px; }

/* Theoretical price headline card */
.mq-bs .price-card { background: var(--mq-bg); border: 1px solid var(--mq-border); border-top: 3px solid var(--mq-accent-bright); border-radius: 2px; padding: 18px 20px 20px; text-align: center; }
.mq-bs .price-label { font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--mq-text-dim); margin-bottom: 8px; }
.mq-bs .price-value { font-size: 40px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--mq-text); line-height: 1; }
.mq-bs .price-sub { margin-top: 10px; font-size: 11.5px; color: var(--mq-text-faint); font-variant-numeric: tabular-nums; }
.mq-bs .price-sub span { color: var(--mq-text-dim); }

/* Greeks grid */
.mq-bs .greeks-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
@media (max-width: 860px) { .mq-bs .greeks-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 480px) { .mq-bs .greeks-grid { grid-template-columns: repeat(2, 1fr); } }

.mq-bs .greek-card { background: var(--mq-bg-deep); border: 1px solid var(--mq-border-soft); border-radius: 2px; padding: 12px 10px 13px; text-align: center; }
.mq-bs .greek-label { font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--mq-text-dim); display: flex; align-items: center; justify-content: center; gap: 4px; }
.mq-bs .greek-sym { color: var(--mq-accent-bright); font-family: var(--font-body); text-transform: none; }
.mq-bs .greek-value { margin-top: 8px; font-size: 21px; font-weight: 700; font-variant-numeric: tabular-nums; color: var(--mq-text); }
.mq-bs .greek-hint { margin-top: 6px; font-family: var(--font-body); font-size: 10px; line-height: 1.4; color: var(--mq-text-faint); }

.mq-bs .disclaimer { font-family: var(--font-body); font-size: 11px; line-height: 1.6; color: var(--mq-text-faint); border-top: 1px solid var(--mq-border-soft); padding-top: 16px; }
.mq-bs .disclaimer strong { color: var(--mq-text-dim); }