.calculator-hero { padding-bottom: 72px; }
.calculator-hero h1 { max-width: 900px; }
.calculator-hero-note { margin-top: 18px !important; color: var(--cyan-400) !important; font-size: .92rem !important; font-weight: 750; }
.calculator-section { background: linear-gradient(180deg, var(--surface-soft) 0, white 260px); }
.calculator-container { max-width: 980px; }
.calculator-intro { display: flex; margin-bottom: 32px; align-items: flex-end; justify-content: space-between; gap: 24px; }
.calculator-intro h2 { margin-bottom: 10px; font-size: clamp(2rem, 4vw, 3rem); }
.calculator-intro p:last-child { max-width: 690px; margin-bottom: 0; color: var(--muted); }
.calculator-utility-actions { display: flex; flex: 0 0 auto; flex-wrap: wrap; justify-content: flex-end; gap: 8px 18px; }
.text-button { min-height: 44px; padding: 4px 0; border: 0; color: var(--navy-800); background: transparent; cursor: pointer; font-size: .9rem; font-weight: 800; text-decoration: underline; text-decoration-color: #a8c3c7; text-underline-offset: 4px; }
.text-button:hover { color: var(--navy-950); text-decoration-color: var(--cyan-500); }
.fifo-form { display: grid; gap: 20px; }
.calculator-panel { padding: clamp(22px, 4vw, 36px); border: 1px solid var(--line); background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.calculator-panel-heading { display: flex; margin-bottom: 24px; align-items: flex-start; justify-content: space-between; gap: 18px; }
.calculator-panel-heading h3 { margin: 3px 0 0; font-size: clamp(1.35rem, 3vw, 1.75rem); }
.step-label { color: var(--navy-700); font-size: .7rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.purchase-list { display: grid; gap: 14px; }
.calculator-context-note { margin: -4px 0 20px; padding: 14px 16px; border-left: 3px solid var(--cyan-500); color: var(--muted); background: var(--surface-cyan); border-radius: 0 10px 10px 0; font-size: .88rem; line-height: 1.55; }
.calculator-context-note strong, .calculator-context-note span { display: block; }
.calculator-context-note strong { margin-bottom: 2px; color: var(--navy-900); }
.purchase-card { padding: 22px; border: 1px solid var(--line); background: var(--surface-soft); border-radius: var(--radius-md); }
.purchase-card-heading { display: flex; margin-bottom: 18px; align-items: center; justify-content: space-between; gap: 16px; }
.purchase-card-heading h4, .fifo-result-card h4 { margin: 0; color: var(--navy-950); font-size: 1.03rem; letter-spacing: -.015em; }
.remove-purchase-button { min-height: 40px; padding: 6px 4px; border: 0; color: #6d4d56; background: transparent; cursor: pointer; font-size: .82rem; font-weight: 750; text-decoration: underline; text-decoration-color: #d8c4ca; text-underline-offset: 3px; }
.calculator-fields { display: grid; gap: 16px; }
.form-field { min-width: 0; }
.form-field label { display: block; margin-bottom: 7px; color: var(--navy-900); font-size: .84rem; font-weight: 760; line-height: 1.35; }
.form-field input { width: 100%; height: 50px; padding: 10px 13px; border: 1px solid #cbd8e1; color: var(--navy-950); background: white; border-radius: 10px; font-variant-numeric: tabular-nums; }
.form-field input:hover { border-color: #9db5c4; }
.form-field input:focus { border-color: var(--cyan-500); box-shadow: 0 0 0 3px rgba(23, 201, 195, .12); outline: 0; }
.form-field input[aria-invalid="true"] { border-color: #a65a69; background: #fffafb; }
.money-input { position: relative; }
.money-input input { padding-right: 38px; }
.money-input span { position: absolute; top: 50%; right: 14px; color: var(--muted); font-weight: 750; transform: translateY(-50%); pointer-events: none; }
.add-purchase-button { width: 100%; margin-top: 16px; }
.button--secondary { border-color: #b9d8d5; background: var(--surface-cyan); box-shadow: none; }
.button--secondary:hover { background: var(--cyan-100); box-shadow: none; }
.calculate-button { width: 100%; min-height: 56px; font-size: 1rem; }
.calculator-error { padding: 16px 18px; border: 1px solid #d9b7bf; color: #663944; background: #fff7f8; border-radius: 12px; }
.calculator-error strong, .calculator-error span { display: block; }
.calculator-error span { margin-top: 3px; font-size: .9rem; }
.fifo-calculation-result { margin-top: 56px; }
.fifo-result-heading { margin-bottom: 24px; }
.fifo-result-heading h2 { margin: 0; font-size: clamp(2rem, 5vw, 3.4rem); }
.fifo-allocation { margin-bottom: 18px; padding: 24px; border: 1px solid #b9d8d5; background: var(--surface-cyan); border-radius: var(--radius-md); }
.fifo-allocation h3 { margin-bottom: 14px; }
.fifo-allocation-list { display: grid; margin: 0; padding: 0; gap: 8px; list-style: none; }
.fifo-allocation-list li { display: flex; align-items: flex-start; gap: 10px; color: var(--navy-900); font-weight: 720; }
.fifo-allocation-list li::before { content: "✓"; color: var(--positive); font-weight: 900; }
.fifo-summary { display: grid; margin: 0; padding: clamp(22px, 4vw, 34px); border: 1px solid var(--line); background: white; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.fifo-summary-item { display: flex; padding: 13px 0; align-items: baseline; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line); }
.fifo-summary-item dt { color: var(--muted); }
.fifo-summary-item dd { margin: 0; color: var(--navy-950); font-weight: 820; font-variant-numeric: tabular-nums; text-align: right; }
.fifo-summary-item--result { margin-top: 8px; padding: 22px 0 12px; border-bottom: 0; }
.fifo-summary-item--result dt { color: var(--navy-900); font-size: 1.08rem; font-weight: 820; }
.fifo-summary-item--result dd { font-size: clamp(1.65rem, 5vw, 2.5rem); letter-spacing: -.03em; }
.fifo-summary-item--result.is-positive dd { color: var(--positive); }
.fifo-summary-item--result.is-negative dd { color: #86515c; }
.fifo-result-note { margin: 10px 4px 0; color: var(--muted); font-size: .86rem; }
.fifo-result-section { margin-top: 46px; }
.fifo-result-section > h3 { margin-bottom: 18px; font-size: 1.55rem; }
.fifo-result-grid { display: grid; gap: 14px; }
.fifo-result-card { min-width: 0; padding: 22px; border: 1px solid var(--line); background: white; border-radius: var(--radius-md); }
.fifo-result-card--remaining { background: var(--surface-soft); }
.fifo-detail-list { margin: 14px 0 0; }
.fifo-detail-list .fifo-summary-item { padding: 8px 0; font-size: .9rem; }
.fifo-detail-list .fifo-summary-item:last-child { border-bottom: 0; }
.fifo-empty-position { margin: 0; padding: 20px; color: var(--muted); background: var(--surface-soft); border: 1px solid var(--line); border-radius: var(--radius-md); }
.fifo-inline-cta { display: grid; margin-top: 46px; padding: clamp(24px, 5vw, 38px); align-items: center; gap: 24px; color: white; background: var(--navy-900); border-radius: var(--radius-lg); }
.fifo-inline-cta h3 { margin-bottom: 8px; color: white; font-size: 1.5rem; }
.fifo-inline-cta p { margin: 0; color: #bed0de; }
.fifo-inline-cta .button { justify-self: start; }
.calculator-disclaimer { display: flex; margin-top: 26px; padding: 18px 20px; align-items: flex-start; gap: 12px; border: 1px solid #b8e1dd; background: var(--surface-cyan); border-radius: 14px; }
.calculator-disclaimer strong { flex: 0 0 auto; color: var(--navy-900); }
.calculator-disclaimer span { color: var(--muted); font-size: .9rem; }
.educational-content .guide-block { max-width: 780px; }

@media (min-width: 620px) {
  .calculator-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fifo-result-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fifo-inline-cta { grid-template-columns: minmax(0, 1fr) auto; }
}

@media (max-width: 419px) {
  .calculator-panel { padding: 20px 16px; border-radius: var(--radius-md); }
  .purchase-card { padding: 18px 14px; }
  .fifo-summary-item { display: block; }
  .fifo-summary-item dd { margin-top: 2px; text-align: left; }
  .calculator-disclaimer { display: block; }
  .calculator-disclaimer strong { display: block; margin-bottom: 5px; }
}

@media (max-width: 859px) {
  .calculator-intro { align-items: flex-start; flex-direction: column; }
  .calculator-utility-actions { justify-content: flex-start; }
}