:root {
    color-scheme: light;
    --calculator-paper: #f5f3ee;
    --calculator-surface: #ffffff;
    --calculator-ink: #1e252b;
    --calculator-muted: #626b73;
    --calculator-line: #ded9d2;
    --calculator-accent: #d61f3d;
    --calculator-accent-dark: #b4162f;
    --calculator-focus: #d61f3d;
    --calculator-radius: 16px;
    font-family: Onest, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    min-width: 0;
    background: var(--calculator-paper);
}

body {
    min-width: 0;
    margin: 0;
    overflow-x: hidden;
    background: var(--calculator-paper);
    color: var(--calculator-ink);
    font-size: 16px;
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}

button,
input,
select {
    font: inherit;
}

button,
select,
input {
    min-width: 0;
}

:focus-visible {
    outline: 3px solid var(--calculator-focus);
    outline-offset: 2px;
}

.calculator-document {
    width: min(100%, 1200px);
    margin-inline: auto;
    padding: 24px;
}

.calculator-intro {
    max-width: 760px;
    margin-bottom: 22px;
}

.calculator-intro h1,
.calculator-result h2,
.calculator-section h2,
.calculator-price-card h3 {
    margin: 0;
    line-height: 1.1;
}

.calculator-intro h1 {
    max-width: 720px;
    font-size: clamp(25px, 4vw, 40px);
    letter-spacing: -0.035em;
}

.calculator-intro > p:last-child {
    margin: 10px 0 0;
    color: var(--calculator-muted);
}

.calculator-eyebrow {
    margin: 0 0 7px;
    color: var(--calculator-accent);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.calculator-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(290px, 340px);
    align-items: start;
    gap: 20px;
}

.calculator-form,
.calculator-form__sections {
    min-width: 0;
}

.calculator-form__sections {
    display: grid;
    gap: 14px;
}

.calculator-section {
    overflow: hidden;
    border: 1px solid var(--calculator-line);
    border-radius: var(--calculator-radius);
    background: var(--calculator-surface);
    box-shadow: 0 8px 28px rgba(30, 37, 43, 0.05);
}

.calculator-section__heading {
    padding: 19px 20px 14px;
    border-bottom: 1px solid #eeeae4;
}

.calculator-section__heading h2 {
    font-size: 18px;
}

.calculator-section__heading p {
    margin: 5px 0 0;
    color: var(--calculator-muted);
    font-size: 14px;
}

.calculator-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 17px 16px;
    padding: 18px 20px 22px;
}

.calculator-field {
    min-width: 0;
}

.calculator-field--wide {
    grid-column: 1 / -1;
}

.calculator-label,
.calculator-size legend {
    display: block;
    margin: 0 0 7px;
    color: #3f474e;
    font-size: 14px;
    font-weight: 700;
}

.calculator-control {
    width: 100%;
    min-height: 48px;
    padding: 10px 12px;
    border: 1px solid #bfc3c6;
    border-radius: 10px;
    background: #fff;
    color: var(--calculator-ink);
    box-shadow: inset 0 1px 2px rgba(30, 37, 43, 0.04);
}

.calculator-control:hover {
    border-color: #7a8288;
}

.calculator-control:focus {
    border-color: var(--calculator-accent);
}

select.calculator-control {
    cursor: pointer;
}

.calculator-hint {
    margin: 6px 0 0;
    color: var(--calculator-muted);
    font-size: 13px;
}

.calculator-field--check {
    align-self: stretch;
}

.calculator-check {
    display: flex;
    min-height: 48px;
    align-items: center;
    gap: 11px;
    padding: 10px 12px;
    border: 1px solid var(--calculator-line);
    border-radius: 10px;
    background: #faf9f7;
    cursor: pointer;
    font-weight: 650;
}

.calculator-check input {
    width: 22px;
    height: 22px;
    accent-color: var(--calculator-accent);
}

.calculator-size {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.calculator-size__grid {
    display: grid;
    grid-template-columns: minmax(160px, 1.4fr) minmax(100px, 0.7fr) minmax(100px, 0.7fr);
    gap: 10px;
}

.calculator-size__value span {
    display: block;
    margin-bottom: 5px;
    color: var(--calculator-muted);
    font-size: 12px;
    font-weight: 650;
}

.calculator-form__actions {
    display: flex;
    justify-content: flex-start;
    padding: 2px 2px 8px;
}

.calculator-feedback {
    padding: 0 20px 20px;
}

.calculator-feedback:empty {
    display: none;
}

.calculator-allocation,
.calculator-error {
    padding: 11px 13px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 700;
}

.calculator-allocation:not(:empty) {
    margin-top: 2px;
    background: #edf7ef;
    color: #225e2c;
}

.calculator-error:not(.hide) {
    margin-top: 8px;
    background: #fff0f2;
    color: #9d1730;
}

.calculator-reset {
    min-height: 44px;
    padding: 9px 16px;
    border: 1px solid #adb2b6;
    border-radius: 10px;
    background: transparent;
    color: #414950;
    cursor: pointer;
    font-weight: 700;
}

.calculator-reset:hover {
    border-color: var(--calculator-ink);
    background: #fff;
}

.calculator-result {
    position: sticky;
    top: 18px;
    min-width: 0;
    overflow: hidden;
    padding: 22px;
    border-radius: var(--calculator-radius);
    background: var(--calculator-ink);
    color: #fff;
    box-shadow: 0 18px 42px rgba(30, 37, 43, 0.18);
}

.calculator-result::before {
    position: absolute;
    inset: 0 0 auto;
    height: 5px;
    background: var(--calculator-accent);
    content: '';
}

.calculator-result h2 {
    font-size: 28px;
    letter-spacing: -0.025em;
}

.calculator-result__note {
    margin: 9px 0 18px;
    color: #cfd3d5;
    font-size: 14px;
}

.calculator-price-cards {
    display: grid;
    gap: 10px;
}

.calculator-price-card {
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.07);
}

.calculator-price-card--featured,
.calculator-price-card:first-child {
    border-color: rgba(214, 31, 61, 0.6);
    background: rgba(214, 31, 61, 0.14);
}

.calculator-price-card h3 {
    margin-bottom: 12px;
    font-size: 15px;
}

.calculator-price-card__primary,
.calculator-price-card__secondary {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.calculator-price-card__secondary {
    margin-top: 9px;
    padding-top: 9px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.calculator-price-card__label {
    color: #d8dbdd;
    font-size: 13px;
}

.calculator-result__value {
    display: flex;
    min-width: 0;
    align-items: baseline;
    justify-content: flex-end;
    gap: 4px;
    color: #fff;
    font-weight: 800;
}

.calculator-result__number {
    min-width: 0;
    overflow-wrap: anywhere;
    color: inherit;
    font-size: 22px;
    line-height: 1;
}

div.calculator-result__number:empty::before {
    content: '—';
}

input.calculator-result__number {
    width: min(100%, 120px);
    padding: 0;
    border: 0;
    outline: 0;
    background: transparent;
    text-align: right;
}

.calculator-result__currency {
    color: #d8dbdd;
    font-size: 13px;
}

.calculator-technical {
    margin-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.calculator-technical summary {
    min-height: 44px;
    padding: 14px 0 0;
    cursor: pointer;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
}

.calculator-technical-table {
    width: 100% !important;
    margin-top: 12px;
    border-collapse: collapse;
    color: #e7e9ea;
    font-size: 12px;
}

.calculator-technical-table tr:first-child {
    display: none;
}

.calculator-technical-table td {
    padding: 5px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
    vertical-align: top;
}

.calculator-technical-table td:first-child {
    padding-right: 10px;
    color: #aeb5b9;
}

@media (max-width: 820px) {
    .calculator-document {
        padding: 18px 16px 28px;
    }

    .calculator-layout {
        grid-template-columns: minmax(0, 1fr);
    }

    .calculator-result {
        position: static;
        grid-row: 1;
    }
}

@media (max-width: 560px) {
    .calculator-document {
        padding-inline: 12px;
    }

    .calculator-intro {
        margin-bottom: 16px;
    }

    .calculator-intro h1 {
        font-size: 25px;
    }

    .calculator-intro > p:last-child {
        font-size: 14px;
    }

    .calculator-fields {
        grid-template-columns: minmax(0, 1fr);
        padding: 16px;
    }

    .calculator-section__heading {
        padding: 17px 16px 13px;
    }

    .calculator-size__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .calculator-size__preset {
        grid-column: 1 / -1;
    }

    .calculator-result {
        padding: 20px 16px;
    }

    .calculator-result h2 {
        font-size: 25px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}