.kwg-calculator {
    --kwg-primary: #146B5C;
    --kwg-accent: #D4A017;
    --kwg-bg: #fff;
    --kwg-card: #FFFFFF;
    --kwg-text: #1F2937;
    --kwg-muted: #667085;
    --kwg-track: #D9E4E6;
    --kwg-warning: #8A6200;
    --kwg-warning-bg: #FFF3C4;
    --kwg-danger: #B42318;
    --kwg-danger-bg: #FFF1F0;
    --kwg-radius: 24px;
    --kwg-max: 920px;
    --kwg-font: Inter, Arial, sans-serif;
    width: 100%;
    color: var(--kwg-text);
    font-family: var(--kwg-font);
}

.kwg-calculator *, .kwg-calculator *::before, .kwg-calculator *::after { box-sizing: border-box; }

.kwg-calculator__inner {
    width: min(var(--kwg-max), calc(100% - 28px));
    margin-inline: auto;
    padding: clamp(22px, 2.7vw, 36px);
    border: 1px solid color-mix(in srgb, var(--kwg-primary) 14%, #fff);
    border-radius: var(--kwg-radius);
    background: var(--kwg-bg);
    box-shadow: 0 18px 54px rgba(50, 28, 65, .075);
}

.kwg-calculator__header { max-width: 700px; margin-bottom: 24px; }
.kwg-calculator__eyebrow {
    display: inline-flex; align-items: center; min-height: 27px; padding: 0 11px;
    border-radius: 999px; background: color-mix(in srgb, var(--kwg-accent) 9%, #fff);
    color: var(--kwg-accent); font-size: 11px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase;
}
.kwg-calculator__header h2 { margin: 10px 0 0; font-size: clamp(27px, 3.5vw, 40px); line-height: 1.03; letter-spacing: -.04em; font-weight: 900; color: var(--kwg-text); }
.kwg-calculator__header p { margin: 10px 0 0; max-width: 650px; color: var(--kwg-muted); font-size: 14px; line-height: 1.5; }

.kwg-calculator__layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(270px, .65fr); gap: clamp(18px, 2.8vw, 28px); align-items: stretch; }
.kwg-calculator__controls { display: grid; gap: 12px; }
.kwg-slider-block { padding: 17px 18px 15px; border-radius: calc(var(--kwg-radius) * .72); background: var(--kwg-card); }
.kwg-slider-block__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 18px; margin-bottom: 13px; }
.kwg-slider-block__top label { max-width: 68%; font-size: 13px; line-height: 1.3; font-weight: 750; color: var(--kwg-text); }
.kwg-slider-block__top strong { flex: 0 0 auto; color: var(--kwg-primary); font-size: 19px; line-height: 1; font-weight: 900; white-space: nowrap; }
.kwg-slider-block__top small { font-size: 10px; color: var(--kwg-muted); font-weight: 650; }

.kwg-range { --kwg-progress: 0%; width: 100%; height: 18px; margin: 0; appearance: none; -webkit-appearance: none; background: transparent; cursor: pointer; }
.kwg-range::-webkit-slider-runnable-track { height: 6px; border-radius: 999px; background: linear-gradient(90deg, var(--kwg-primary) 0 var(--kwg-progress), var(--kwg-track) var(--kwg-progress) 100%); }
.kwg-range::-moz-range-track { height: 6px; border-radius: 999px; background: var(--kwg-track); }
.kwg-range::-moz-range-progress { height: 6px; border-radius: 999px; background: var(--kwg-primary); }
.kwg-range::-webkit-slider-thumb { width: 21px; height: 21px; margin-top: -7.5px; appearance: none; -webkit-appearance: none; border: 4px solid #fff; border-radius: 50%; background: var(--kwg-accent); box-shadow: 0 3px 11px color-mix(in srgb, var(--kwg-accent) 30%, transparent); }
.kwg-range::-moz-range-thumb { width: 15px; height: 15px; border: 4px solid #fff; border-radius: 50%; background: var(--kwg-accent); box-shadow: 0 3px 11px color-mix(in srgb, var(--kwg-accent) 30%, transparent); }
.kwg-range:focus-visible { outline: 3px solid color-mix(in srgb, var(--kwg-primary) 20%, transparent); outline-offset: 4px; border-radius: 8px; }
.kwg-range-scale { display: flex; justify-content: space-between; margin-top: 3px; color: var(--kwg-muted); font-size: 9px; font-weight: 600; }

.kwg-status { display: flex; align-items: flex-start; gap: 9px; margin-top: 10px; padding: 10px 12px; border-radius: 12px; font-size: 11px; font-weight: 650; line-height: 1.4; animation: kwg-status-in .22s ease both; }
.kwg-status[hidden] { display: none; }
.kwg-status.is-warning { background: var(--kwg-warning-bg); color: var(--kwg-warning); }
.kwg-status.is-danger { background: var(--kwg-danger-bg); color: var(--kwg-danger); }
.kwg-status__icon { display: grid; place-items: center; flex: 0 0 20px; width: 20px; height: 20px; border: 1px solid currentColor; border-radius: 50%; font-weight: 900; }
@keyframes kwg-status-in { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

.kwg-result-card {
    position: relative; overflow: hidden; display: flex; flex-direction: column; min-height: 100%;
    padding: 24px; border-radius: calc(var(--kwg-radius) * .85);
    background: linear-gradient(145deg, color-mix(in srgb, var(--kwg-primary) 76%, #000), var(--kwg-primary));
    color: #fff; box-shadow: 0 18px 40px color-mix(in srgb, var(--kwg-primary) 20%, transparent);
}
.kwg-result-card::after { content: ''; position: absolute; right: -72px; bottom: -88px; width: 180px; height: 180px; border: 1px solid rgba(255,255,255,.13); border-radius: 50%; }
.kwg-result-card__label { position: relative; z-index: 1; font-size: 11px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; opacity: .82; }
.kwg-result-card__main { position: relative; z-index: 1; display: flex; align-items: baseline; gap: 7px; margin-top: 16px; }
.kwg-result-card__main strong { font-size: clamp(34px, 4vw, 48px); line-height: .95; letter-spacing: -.05em; font-weight: 950; }
.kwg-result-card__main span { font-size: 16px; font-weight: 750; opacity: .9; }
.kwg-result-card__period { position: relative; z-index: 1; margin-top: 5px; font-size: 11px; opacity: .72; }
.kwg-result-card__divider { position: relative; z-index: 1; height: 1px; margin: 20px 0 17px; background: rgba(255,255,255,.18); }
.kwg-result-card__annual { position: relative; z-index: 1; display: grid; gap: 4px; }
.kwg-result-card__annual strong { font-size: 21px; line-height: 1.05; font-weight: 900; }
.kwg-result-card__annual span { font-size: 11px; opacity: .72; }
.kwg-result-card__disclaimer { position: relative; z-index: 1; margin: 18px 0 0; padding-top: 15px; border-top: 1px solid rgba(255,255,255,.15); color: rgba(255,255,255,.72); font-size: 9.5px; line-height: 1.45; }
.kwg-result-card__note { position: relative; z-index: 1; margin: 13px 0 0; color: #fff; font-size: 12px; line-height: 1.45; font-weight: 800; }
.kwg-result-card__cta { position: relative; z-index: 1; display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 45px; margin-top: 16px; padding: 10px 16px; border-radius: 999px; background: var(--kwg-accent); color: var(--kwg-text); font-size: 13px; font-weight: 850; text-decoration: none; }
.kwg-result-card__cta:hover { color: var(--kwg-text); transform: translateY(-1px); }

@media (max-width: 760px) {
    .kwg-calculator__inner { width: min(var(--kwg-max), calc(100% - 18px)); padding: 20px 14px; }
    .kwg-calculator__header { margin-bottom: 18px; }
    .kwg-calculator__layout { grid-template-columns: 1fr; gap: 14px; }
    .kwg-result-card { min-height: 0; padding: 21px 18px; }
    .kwg-slider-block { padding: 15px 14px 13px; }
    .kwg-slider-block__top { display: grid; gap: 7px; margin-bottom: 11px; }
    .kwg-slider-block__top label { max-width: none; }
    .kwg-slider-block__top strong { font-size: 18px; }
}

/* v1.1.1 — szacowany czas działania w panelu wyniku */
.kwg-result-card__time {
    position: relative;
    z-index: 1;
    display: grid;
    gap: 5px;
    margin-top: 17px;
    padding: 14px 15px;
    border: 1px solid rgba(255,255,255,.14);
    border-radius: 14px;
    background: rgba(255,255,255,.08);
}
.kwg-result-card__time span {
    font-size: 9.5px;
    line-height: 1.35;
    font-weight: 750;
    text-transform: uppercase;
    letter-spacing: .04em;
    opacity: .72;
}
.kwg-result-card__time strong {
    font-size: 20px;
    line-height: 1.05;
    font-weight: 900;
}

/* v1.2.0 — dynamiczny szacowany czas działania */
.kwg-result-card__time small {
    display: block;
    margin-top: 3px;
    color: rgba(255,255,255,.68);
    font-size: 9px;
    line-height: 1.4;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
}

/* v1.2.1 — opcjonalny nagłówek nad boxem kalkulatora */
.kwg-calculator__section-header {
    width: min(var(--kwg-max), calc(100% - 28px));
    margin: 0 auto clamp(22px, 3vw, 34px);
    text-align: center;
}

.kwg-calculator__section-eyebrow {
    display: inline-flex;
    align-items: center;
    min-height: 28px;
    padding: 0 12px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--kwg-accent) 9%, #fff);
    color: var(--kwg-accent);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.kwg-calculator__section-header h2 {
    max-width: 850px;
    margin: 13px auto 0;
    color: var(--kwg-text);
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.03;
    letter-spacing: -.045em;
    font-weight: 900;
    text-wrap: balance;
}

.kwg-calculator__section-header p {
    max-width: 720px;
    margin: 12px auto 0;
    color: var(--kwg-muted);
    font-size: 15px;
    line-height: 1.55;
}

@media (max-width: 760px) {
    .kwg-calculator__section-header {
        width: min(var(--kwg-max), calc(100% - 18px));
        margin-bottom: 20px;
        text-align: left;
    }

    .kwg-calculator__section-header h2 {
        margin-left: 0;
        font-size: clamp(28px, 9vw, 38px);
    }

    .kwg-calculator__section-header p {
        margin-left: 0;
        font-size: 14px;
    }
}

/* v1.5.1 — przykład miejscowości obok liczby mieszkańców */
.kwg-population-value {
    white-space: normal !important;
    text-align: right;
}
.kwg-population-value small {
    font-size: 10px;
    color: var(--kwg-muted);
    font-weight: 650;
}
.kwg-population-value [data-display="population-example"] {
    color: var(--kwg-primary);
    font-weight: 800;
}
@media (max-width: 760px) {
    .kwg-population-value { text-align: left; }
}