.cost-calculator { margin: 28px 0 36px; padding: 24px; border: 1px solid var(--border-strong); border-radius: 14px; background: var(--bg-card); scroll-margin-top: 90px; }
.cost-calculator [hidden] { display: none !important; }
.cost-calculator h2 { margin: 0 0 8px; font-size: 24px; }
.cost-calculator .cost-intro { color: var(--text-mute); font-size: 15px; margin: 0 0 20px; }
.cost-calculator .cost-columns, .cost-calculator .cost-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cost-calculator fieldset { min-width: 0; padding: 16px; margin: 0; border: 1px solid var(--border); border-radius: 9px; }
.cost-calculator legend { padding: 0 6px; color: var(--mint-text); font-size: 15px; font-weight: 600; }
.cost-calculator label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--text-soft); }
.cost-calculator input, .cost-calculator select { width: 100%; min-width: 0; padding: 9px 10px; background: var(--bg); color: var(--text); border: 1px solid var(--border-input); border-radius: 6px; font: 14px var(--mono); }
.cost-calculator select { font-family: var(--sans); }
.cost-calculator input:focus-visible, .cost-calculator select:focus-visible, .cost-calculator summary:focus-visible, .cost-calculator button:focus-visible { outline: 2px solid var(--mint); outline-offset: 3px; }
.cost-calculator input[aria-invalid="true"] { border-color: #edba76; }
.cost-calculator .cost-wide { grid-column: 1 / -1; }
.cost-calculator details { margin: 16px 0; border-bottom: 1px solid var(--border); padding-bottom: 14px; }
.cost-calculator summary { cursor: pointer; padding: 6px 0; font-size: 15px; color: var(--text-soft); }
.cost-calculator details[open] summary { margin-bottom: 14px; }
.cost-calculator .cost-help { font-size: 13px; line-height: 1.6; color: var(--text-mute); margin: 12px 0 0; }
.cost-calculator .cost-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 16px 0; }
.cost-calculator button { cursor: pointer; white-space: normal; }
.cost-calculator .cost-actions .btn { font-size: 13px; max-width: 100%; height: auto; min-height: 44px; padding: 10px 16px; }
.cost-calculator button.btn-ghost { background: var(--bg-panel); font-family: var(--sans); }
.cost-calculator button.btn-ghost:hover { background: var(--bg-selected); }
.cost-calculator button:disabled { opacity: 0.5; cursor: default; }
.cost-calculator .cost-summary { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-top: 22px; }
.cost-calculator .cost-stat { padding: 16px 12px; background: var(--bg-panel); border: 1px solid var(--border); border-radius: 8px; }
.cost-calculator .cost-stat span { display: block; color: var(--text-mute); font-size: 12px; }
.cost-calculator .cost-stat strong { display: block; color: var(--text); font: 500 24px var(--mono); margin: 8px 0; overflow-wrap: anywhere; }
.cost-calculator .cost-stat:first-child strong { color: var(--mint-text); }
.cost-calculator .cost-verdict { margin: 18px 0 8px; font-size: 18px; }
.cost-calculator .cost-capacity { margin: 16px 0; padding: 16px; border-left: 3px solid var(--peri); background: var(--bg-eu); }
.cost-calculator .cost-capacity p { margin: 0 0 6px; }
.cost-calculator .cost-capacity p:last-child { margin-bottom: 0; }
.cost-calculator .cost-capacity[data-warning="true"] { border-color: #edba76; }
.cost-calculator .cost-error { color: #edba76; font-size: 14px; }
.cost-calculator figure { margin: 24px 0 12px; }
.cost-calculator .cost-chart { display: block; width: 100%; height: auto; overflow: visible; }
.cost-calculator .cost-chart text { font: 12px var(--mono); fill: var(--text-mute); }
.cost-calculator .cost-chart .cost-axis { stroke: var(--border-strong); stroke-width: 1; }
.cost-calculator .cost-chart .cost-grid { stroke: var(--border); stroke-dasharray: 3 5; }
.cost-calculator .cost-chart .cost-host { stroke: var(--mint); fill: none; stroke-width: 2.5; }
.cost-calculator .cost-chart .cost-api { stroke: var(--peri); fill: none; stroke-width: 2.5; }
.cost-calculator .cost-chart .cost-marker { stroke: var(--text-soft); stroke-dasharray: 4 4; }
.cost-calculator .cost-chart .cost-limit { stroke: #edba76; stroke-dasharray: 7 4; }
.cost-calculator .cost-chart .cost-dot { fill: var(--mint-text); }
.cost-calculator .cost-legend { display: flex; flex-wrap: wrap; gap: 10px 18px; margin-bottom: 12px; font-size: 12px; color: var(--text-mute); }
.cost-calculator .cost-legend span::before { content: ""; display: inline-block; width: 18px; margin-right: 6px; border-top: 2px solid var(--mint); vertical-align: middle; }
.cost-calculator .cost-legend .api::before { border-color: var(--peri); }
.cost-calculator .cost-legend .workload::before { border-color: var(--text-soft); border-top-style: dashed; }
.cost-calculator .cost-legend .capacity::before { border-color: #edba76; border-top-style: dashed; }
.cost-calculator figcaption { font-size: 13px; color: var(--text-mute); line-height: 1.6; }
.cost-calculator table { font-size: 13px; }
.cost-calculator th:last-child, .cost-calculator td:last-child { text-align: right; font-family: var(--mono); white-space: nowrap; }
.cost-calculator .cost-share { display: block; flex: 1 1 100%; }
.cost-calculator .cost-cta { padding-top: 16px; border-top: 1px solid var(--border); }
.cost-calculator .cost-cta p { margin: 8px 0; }
.cost-calculator .cost-cta .btn { max-width: 100%; height: auto; min-height: 44px; padding: 12px 18px; white-space: normal; text-align: center; }
.cost-toc { display: flex; gap: 8px 20px; flex-wrap: wrap; font-size: 14px; margin: 20px 0; }
@media (max-width: 620px) {
  .cost-calculator { padding: 16px; }
  .cost-calculator .cost-columns { grid-template-columns: 1fr; }
  .cost-calculator .cost-summary { grid-template-columns: 1fr; }
  .cost-calculator .cost-stat { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 0 10px; }
  .cost-calculator .cost-stat strong { font-size: 22px; grid-column: 2; grid-row: 1 / 3; }
  .cost-calculator .cost-chart text { font-size: 12px; }
}
@media (prefers-reduced-motion: reduce) { .cost-calculator * { scroll-behavior: auto; } }