.cost-page { overflow: hidden; }
.cost-hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr); gap: clamp(38px, 7vw, 92px); align-items: center; padding-top: 68px !important; }
.cost-hero__copy { max-width: 760px; }
.cost-hero h1 { max-width: 850px; font-size: clamp(3rem, 6.5vw, 5.7rem); }
.cost-hero .public-lede { max-width: 740px; }
.cost-privacy-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 34px 0 0; padding: 0; list-style: none; }
.cost-privacy-list li { min-width: 0; padding: 16px; border: 1px solid var(--public-border); border-radius: 14px; background: rgba(20, 18, 29, .72); }
.cost-privacy-list strong,.cost-privacy-list span { display: block; }
.cost-privacy-list strong { color: var(--public-cyan); font-size: .78rem; }
.cost-privacy-list span { margin-top: 5px; color: var(--public-muted); font-size: .73rem; line-height: 1.45; }
.cost-formula-card { position: relative; min-height: 310px; display: flex; flex-direction: column; justify-content: flex-end; overflow: hidden; padding: 34px; border: 1px solid rgba(168, 92, 255, .38); border-radius: 24px; background: radial-gradient(circle at 78% 10%, rgba(115, 233, 255, .13), transparent 34%), linear-gradient(145deg, rgba(28, 20, 43, .96), rgba(12, 12, 20, .96)); box-shadow: var(--public-shadow); }
.cost-formula-card::before { position: absolute; top: -88px; right: -62px; width: 230px; height: 230px; border: 1px solid rgba(115, 233, 255, .22); border-radius: 50%; box-shadow: 0 0 70px rgba(123, 44, 255, .17); content: ""; }
.cost-formula-card > span { color: var(--public-cyan); font-size: .72rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.cost-formula-card > strong { margin-top: 14px; color: #fff; font-size: clamp(1.45rem, 2.4vw, 2.1rem); line-height: 1.22; }
.cost-formula-card > p { margin: 18px 0 0; color: var(--public-muted); font-size: .86rem; }

.cost-workspace { display: grid; grid-template-columns: minmax(0, 1fr) minmax(350px, .82fr); gap: 24px; align-items: start; }
.cost-form,.cost-result-shell { min-width: 0; }
.cost-form { padding: clamp(24px, 4vw, 42px); border: 1px solid var(--public-border); border-radius: 22px; background: rgba(20, 18, 29, .9); }
.cost-form .public-heading { margin-bottom: 28px; }
.cost-form .public-heading h2 { font-size: clamp(2rem, 3.5vw, 3rem); }
.cost-fieldset { display: grid; gap: 16px; margin: 0; padding: 22px 0; border: 0; border-top: 1px solid var(--public-border); }
.cost-fieldset legend { float: left; width: 100%; margin-bottom: 15px; padding: 0; color: #fff; font-size: 1rem; font-weight: 800; }
.cost-fields { clear: both; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.cost-fields--electricity { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cost-fieldset label { min-width: 0; display: grid; gap: 7px; color: var(--public-copy); font-size: .78rem; font-weight: 760; }
.cost-fieldset label > small { color: var(--public-dim); font-size: .68rem; font-weight: 500; line-height: 1.4; }
.cost-input-unit { min-width: 0; display: flex; align-items: stretch; overflow: hidden; border: 1px solid var(--public-border-bright); border-radius: 10px; background: #0f0e17; }
.cost-input-unit:focus-within { outline: 3px solid var(--public-cyan); outline-offset: 2px; }
.cost-input-unit input { width: 100%; min-width: 0; height: 46px; padding: 10px 12px; border: 0; outline: 0; color: #fff; background: transparent; }
.cost-input-unit i { flex: 0 0 auto; display: grid; place-items: center; padding: 0 12px; border-left: 1px solid var(--public-border); color: var(--public-muted); background: rgba(255, 255, 255, .035); font-size: .7rem; font-style: normal; white-space: nowrap; }
.cost-fieldset select { width: 100%; height: 48px; padding: 9px 11px; border: 1px solid var(--public-border-bright); border-radius: 10px; outline: 0; color: #fff; background: #0f0e17; }
.cost-fieldset select:focus-visible { outline: 3px solid var(--public-cyan); outline-offset: 2px; }
.cost-fieldset--comparison label { clear: both; max-width: calc(50% - 8px); }
.cost-form__actions { display: flex; align-items: center; gap: 18px; margin-top: 10px; }
.cost-reset { padding: 10px 2px; border: 0; color: var(--public-muted); background: transparent; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.cost-reset:hover { color: #fff; }
.cost-reset:focus-visible { outline: 3px solid var(--public-cyan); outline-offset: 3px; }
.cost-error { margin: 18px 0 0; padding: 12px 14px; border-left: 3px solid var(--public-red); color: #ffd9e0; background: rgba(255, 124, 146, .08); }

.cost-result-shell { position: sticky; top: 92px; display: grid; gap: 16px; }
.cost-result-card { position: relative; overflow: hidden; scroll-margin-top: 88px; padding: clamp(24px, 3.5vw, 38px); border: 1px solid var(--public-border-bright); border-radius: 22px; background: radial-gradient(circle at 90% 2%, rgba(123, 44, 255, .22), transparent 35%), linear-gradient(145deg, #171322, #0d0c14); box-shadow: var(--public-shadow); }
.cost-result-card::after { position: absolute; right: -90px; bottom: -110px; width: 250px; height: 250px; border: 1px solid rgba(115, 233, 255, .16); border-radius: 50%; content: ""; pointer-events: none; }
.cost-result-card[data-tone="lower"] { border-color: rgba(104, 225, 161, .48); }
.cost-result-card[data-tone="higher"] { border-color: rgba(255, 197, 109, .48); }
.cost-result-card > header { position: relative; z-index: 1; display: flex; justify-content: space-between; gap: 22px; align-items: start; }
.cost-result-card > header h2 { margin: 5px 0 0; font-size: clamp(1.7rem, 3vw, 2.45rem); line-height: 1.08; }
.cost-result-card > header img { width: 54px; height: 54px; object-fit: contain; }
.cost-result-card__empty { min-height: 280px; display: grid; place-items: center; color: var(--public-muted); text-align: center; }
.cost-result-card__empty[hidden],.cost-result-card__values[hidden],.cost-share[hidden] { display: none; }
.cost-result-card__empty p { max-width: 320px; }
.cost-result-card__values { position: relative; z-index: 1; }
.cost-result-card__primary { margin-top: 30px; padding: 22px; border: 1px solid rgba(115, 233, 255, .22); border-radius: 16px; background: rgba(115, 233, 255, .055); }
.cost-result-card__primary span,.cost-result-card__primary strong,.cost-result-card__primary small { display: block; }
.cost-result-card__primary span,.cost-result-card__primary small { color: var(--public-muted); font-size: .72rem; }
.cost-result-card__primary strong { margin: 7px 0 2px; color: #fff; font-size: clamp(2.6rem, 6vw, 4.3rem); line-height: 1; overflow-wrap: anywhere; }
.cost-result-card__comparison { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 10px; }
.cost-result-card__comparison > div { min-width: 0; padding: 16px; border: 1px solid var(--public-border); border-radius: 13px; background: rgba(255, 255, 255, .025); }
.cost-result-card__comparison span,.cost-result-card__comparison strong { display: block; }
.cost-result-card__comparison span { color: var(--public-dim); font-size: .67rem; }
.cost-result-card__comparison strong { margin-top: 5px; color: #fff; font-size: 1.13rem; overflow-wrap: anywhere; }
.cost-result-card dl { margin: 22px 0 0; padding: 0; }
.cost-result-card dl div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 2px; border-bottom: 1px solid rgba(255, 255, 255, .07); }
.cost-result-card dt { color: var(--public-muted); font-size: .72rem; }
.cost-result-card dd { margin: 0; color: #fff; font-size: .76rem; font-weight: 800; }
.cost-result-card__values > p { margin: 20px 0 0; color: var(--public-copy); font-size: .84rem; line-height: 1.55; }
.cost-result-card > footer { position: relative; z-index: 1; margin-top: 26px; color: var(--public-dim); font-size: .64rem; }
.cost-share { display: grid; gap: 14px; padding: 20px; border: 1px solid var(--public-border); border-radius: 16px; background: rgba(20, 18, 29, .85); }
.cost-share strong { color: #fff; font-size: .83rem; }
.cost-share p { margin: 5px 0 0; color: var(--public-muted); font-size: .72rem; line-height: 1.5; }
.cost-share__buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.cost-share__buttons .public-button { width: 100%; padding: 10px 12px; }
.cost-share__status { min-height: 1.15em; color: var(--public-cyan) !important; }

.cost-method { border-top: 1px solid rgba(255, 255, 255, .08); }
.cost-method__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.cost-method__grid article { min-width: 0; padding: 26px; border: 1px solid var(--public-border); border-radius: 17px; background: var(--public-panel); }
.cost-method__grid h3 { margin: 0; color: #fff; }
.cost-method__grid ul { display: grid; gap: 10px; margin: 17px 0 0; padding-left: 20px; color: var(--public-muted); font-size: .84rem; line-height: 1.55; }

@media (max-width: 940px) {
  .cost-hero { grid-template-columns: 1fr; }
  .cost-formula-card { min-height: 250px; }
  .cost-workspace { grid-template-columns: 1fr; }
  .cost-result-shell { position: static; }
  .cost-method__grid { grid-template-columns: 1fr 1fr; }
  .cost-method__grid article:last-child { grid-column: 1 / -1; }
}

@media (max-width: 620px) {
  .cost-hero { padding-top: 46px !important; }
  .cost-privacy-list,.cost-fields,.cost-fields--electricity,.cost-method__grid { grid-template-columns: 1fr; }
  .cost-method__grid article:last-child { grid-column: auto; }
  .cost-fieldset--comparison label { max-width: none; }
  .cost-form__actions { align-items: stretch; flex-direction: column; }
  .cost-form__actions .public-button { width: 100%; }
  .cost-result-card__comparison,.cost-share__buttons { grid-template-columns: 1fr; }
}