.calculator-page {
  min-height: calc(100vh - 76px);
  padding: 42px 0 70px;
  background: #f3f7fa;
}
.calculator-shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.calculator-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 22px; }
.calculator-title { display: flex; align-items: center; gap: 16px; }
.calculator-mark { width: 58px; height: 58px; display: grid; place-items: center; flex: 0 0 auto; border: 1px solid #9acfc7; border-radius: 8px; color: #117b70; background: #e6f7f4; font-size: 15px; font-weight: 900; }
.calculator-heading h1 { margin: 0; font-size: 34px; line-height: 1.2; }
.calculator-heading p { margin: 6px 0 0; color: var(--muted); }
.calculator-access { padding: 7px 10px; border: 1px solid #add9d1; border-radius: 6px; color: #117b70; background: #fff; font-size: 12px; font-weight: 800; white-space: nowrap; }
.calculator-layout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(320px, .9fr); gap: 18px; align-items: start; }
.calculator-card { min-width: 0; border: 1px solid var(--line); border-radius: 8px; background: #fff; box-shadow: 0 14px 36px rgba(18, 49, 79, .07); }
.calculator-card-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 20px 22px; border-bottom: 1px solid var(--line); }
.calculator-card-head span { color: var(--green); font-size: 10px; font-weight: 900; }
.calculator-card-head h2 { margin: 3px 0 0; font-size: 20px; }
.calculator-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; padding: 22px; }
.calculator-form label { min-width: 0; display: grid; gap: 7px; color: #40556d; font-size: 13px; font-weight: 700; }
.calculator-form label.wide { grid-column: 1 / -1; }
.calculator-form input, .calculator-form textarea { width: 100%; min-width: 0; border: 1px solid #c8d5e1; border-radius: 6px; background: #fff; color: var(--ink); font: inherit; outline: none; }
.calculator-form input { height: 44px; padding: 0 12px; }
.calculator-form textarea { min-height: 86px; padding: 11px 12px; resize: vertical; }
.calculator-form input:focus, .calculator-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(7, 86, 168, .10); }
.field-note { color: var(--muted); font-size: 11px; font-weight: 400; }
.calculator-actions { grid-column: 1 / -1; display: flex; gap: 9px; padding-top: 2px; }
.calculator-actions button { min-height: 42px; padding: 9px 16px; border: 1px solid #b8c8d7; border-radius: 6px; background: #fff; color: #344963; font: inherit; font-weight: 800; cursor: pointer; }
.calculator-actions .calculate-button { flex: 1; border-color: var(--blue); color: #fff; background: var(--blue); }
.calculator-actions .calculate-button:hover { background: var(--blue-dark); }
.result-card { position: sticky; top: 96px; overflow: hidden; }
.result-empty { padding: 46px 24px; color: var(--muted); text-align: center; }
.result-empty strong { display: block; margin-bottom: 7px; color: #344963; font-size: 17px; }
.result-body { display: none; padding: 22px; }
.result-body.show { display: block; }
.result-primary { padding: 20px; border-left: 4px solid var(--teal); background: #eff9f7; }
.result-primary span { color: #467069; font-size: 12px; }
.result-primary strong { display: block; margin: 5px 0 2px; color: #0c7067; font-size: 30px; line-height: 1.2; overflow-wrap: anywhere; }
.result-primary small { color: #65837e; }
.result-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; margin-top: 12px; }
.result-grid > div { min-width: 0; padding: 13px; border: 1px solid #e0e8ef; background: #fbfdff; }
.result-grid span { display: block; color: var(--muted); font-size: 11px; }
.result-grid strong { display: block; margin-top: 4px; color: #254765; font-size: 15px; overflow-wrap: anywhere; }
.formula-note { margin: 16px 0 0; color: var(--muted); font-size: 12px; line-height: 1.75; }
.message { display: none; margin: 0 22px 20px; padding: 10px 12px; border: 1px solid #efc6c2; border-radius: 6px; color: #a7463e; background: #fff7f6; font-size: 12px; }
.message.show { display: block; }
.tcid-layout { grid-template-columns: minmax(0, 1.3fr) minmax(330px, .7fr); }
.tcid-form { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.tcid-form .wide { grid-column: 1 / -1; }
.tcid-table-wrap { grid-column: 1 / -1; overflow-x: auto; border: 1px solid var(--line); border-radius: 6px; }
.tcid-table { width: 100%; min-width: 560px; border-collapse: collapse; font-size: 12px; }
.tcid-table th, .tcid-table td { padding: 10px; border-bottom: 1px solid #e5ebf0; text-align: center; }
.tcid-table th { color: #52667d; background: #f5f8fb; font-weight: 800; }
.tcid-table tr:last-child td { border-bottom: 0; }
.tcid-table input { width: 86px; height: 34px; text-align: center; }
.method-block { padding: 18px 20px; border-bottom: 1px solid var(--line); }
.method-block:last-child { border-bottom: 0; }
.method-label { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.method-label strong { font-size: 15px; }
.method-label span { color: var(--muted); font-size: 11px; }
.method-value { display: block; margin: 10px 0 9px; color: var(--blue); font-size: 29px; line-height: 1.2; }
.method-metrics { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.method-metrics div { min-width: 0; padding: 9px; background: #f5f8fb; }
.method-metrics span { display: block; color: var(--muted); font-size: 10px; }
.method-metrics b { display: block; margin-top: 3px; color: #344963; font-size: 12px; overflow-wrap: anywhere; }
.validation { margin: 14px 20px 20px; padding: 11px 12px; border: 1px solid #d8e4ec; border-radius: 6px; color: #4b6076; background: #f8fbfd; font-size: 12px; line-height: 1.65; }
.calculator-footnote { display: flex; justify-content: space-between; gap: 30px; margin-top: 20px; padding: 18px 20px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--muted); font-size: 12px; }
.calculator-footnote strong { color: #344963; }
.calculator-footnote-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px 18px; }
.calculator-footnote-actions a { color: var(--blue); font-weight: 800; text-decoration: none; }
@media (max-width: 900px) {
  .calculator-layout, .tcid-layout { grid-template-columns: 1fr; }
  .result-card { position: static; }
  .tcid-form { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .calculator-page { padding: 26px 0 48px; }
  .calculator-shell { width: min(100% - 24px, 1180px); }
  .calculator-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
  .calculator-heading h1 { font-size: 27px; }
  .calculator-heading p { font-size: 13px; }
  .calculator-mark { width: 50px; height: 50px; }
  .calculator-form, .tcid-form { grid-template-columns: 1fr; padding: 16px; }
  .calculator-form label.wide, .tcid-form .wide, .tcid-table-wrap, .calculator-actions { grid-column: 1; }
  .calculator-card-head { padding: 16px; }
  .result-grid { grid-template-columns: 1fr; }
  .calculator-actions { flex-direction: column; }
  .calculator-actions button { width: 100%; }
  .calculator-footnote { flex-direction: column; gap: 8px; }
  .calculator-footnote-actions { justify-content: flex-start; }
  .tcid-table { min-width: 0; table-layout: fixed; }
  .tcid-table th, .tcid-table td { padding: 9px 5px; }
  .tcid-table th:nth-child(1), .tcid-table td:nth-child(1) { width: 48px; }
  .tcid-table th:nth-child(3), .tcid-table td:nth-child(3) { width: 112px; }
  .tcid-table th:nth-child(n+4), .tcid-table td:nth-child(n+4) { display: none; }
  .tcid-table input { width: 78px; }
}