.calculator-hero { padding-block: 52px 32px; }
.calculator-hero h1 { max-width: 820px; font-size: clamp(38px,6vw,64px); line-height: 1.06; letter-spacing: -.055em; margin-bottom: 18px; }
.calculator-hero .detail-lede { margin: 0; max-width: 700px; }
.calculator-layout { display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: start; padding-bottom: 64px; }
.calculator-panel { min-width: 0; padding: 30px; border: 1px solid var(--line-strong); border-radius: 24px; background: var(--panel); }
.calculator-panel h2 { font-size: 22px; letter-spacing: -.03em; margin-bottom: 22px; }
.calculator-panel fieldset { padding: 0; border: 0; margin: 0; min-width: 0; }
.calculator-mode { display: flex; gap: 10px; margin-bottom: 24px; }
.calculator-mode label { flex: 1; cursor: pointer; padding: 13px 14px; border-radius: 12px; border: 1px solid var(--line-strong); font-size: 14px; font-weight: 750; }
.calculator-mode label:has(input:checked) { color: var(--cyan); border-color: var(--cyan); background: rgba(34,211,238,.06); }
.calculator-mode input { accent-color: var(--cyan); margin-right: 7px; }
.calculator-field { margin-bottom: 20px; }
.calculator-field label { display: block; font-size: 14px; font-weight: 750; margin-bottom: 8px; }
.calculator-field input,.calculator-field select { width: 100%; min-height: 50px; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 12px; background: var(--bg); color: var(--ink); font: inherit; }
.calculator-field input:focus-visible,.calculator-field select:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.calculator-field [aria-invalid=true] { border-color: var(--saffron); }
.calculator-field small { display: block; margin-top: 7px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.calculator-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.calculator-actions button { cursor: pointer; }
.calculator-result-panel { border-color: rgba(34,211,238,.3); background: linear-gradient(150deg,rgba(34,211,238,.06),var(--panel)); }
.calculator-total { display: block; margin: 12px 0 28px; color: var(--cyan); font-weight: 800; font-size: clamp(25px,3.5vw,38px); line-height: 1.25; letter-spacing: -.04em; overflow-wrap: anywhere; }
.calculator-breakdown { margin: 0; }
.calculator-breakdown div { display: flex; justify-content: space-between; gap: 14px; border-top: 1px solid var(--line); padding-block: 16px; font-size: 14px; }
.calculator-breakdown dt { color: var(--muted); }
.calculator-breakdown dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
.calculator-message { color: var(--muted); font-size: 14px; margin: 0; }
.calculator-error { color: #ffd6a5; }
.calculator-rules { max-width: 820px; padding: 0 0 70px; }
.calculator-rules h2 { font-size: clamp(26px,4vw,38px); letter-spacing: -.04em; }
.calculator-rules li { color: var(--muted); margin-bottom: 12px; }
[hidden] { display: none !important; }
@media(max-width:900px) { .calculator-layout { grid-template-columns: 1fr; } }
@media(max-width:640px) { .calculator-hero { padding-top: 32px; } .calculator-panel { padding: 22px; } .calculator-layout { gap: 18px; padding-bottom: 44px; } .calculator-mode label { padding-inline: 10px; } .calculator-actions { flex-direction: column; } .calculator-actions button { width: 100%; } .calculator-breakdown div { flex-wrap: wrap; } .calculator-rules { padding-bottom: 44px; } }