@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&display=swap');

:root {
    --ink: #151515;
    --muted: #676767;
    --paper: #ffffff;
    --soft: #fbfaf3;
    --line: #deddd6;
    --sun: #f4bd00;
    --sun-strong: #d9a600;
    --radius: 22px;
    --shadow: 0 22px 70px rgba(17, 17, 17, 0.1);
    --shell: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: 'Manrope', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

button, a, input, select { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

.shell {
    width: min(calc(100% - 40px), var(--shell));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    z-index: 100;
    top: 10px;
    left: 10px;
    padding: 10px 14px;
    color: #fff;
    background: var(--ink);
    border-radius: 8px;
    transform: translateY(-160%);
}

.skip-link:focus { transform: translateY(0); }

.site-header {
    position: relative;
    z-index: 5;
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
    background: rgba(255, 255, 255, 0.92);
}

.header-inner {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.brand { display: inline-flex; align-items: center; }
.brand img { display: block; width: 142px; height: auto; }

.header-label {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.11em;
    text-transform: uppercase;
}

.hero {
    position: relative;
    overflow: hidden;
    padding: clamp(64px, 8vw, 112px) 0;
    background:
        radial-gradient(circle at 82% 12%, rgba(244, 189, 0, 0.28), transparent 28%),
        linear-gradient(135deg, #fbfaf3 0%, #fff 58%);
}

.hero::after {
    content: '';
    position: absolute;
    width: 430px;
    height: 430px;
    right: -185px;
    bottom: -250px;
    border: 70px solid rgba(244, 189, 0, 0.12);
    border-radius: 50%;
}

.hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.75fr);
    align-items: center;
    gap: clamp(48px, 8vw, 104px);
}

.eyebrow, .card-kicker {
    margin: 0 0 18px;
    color: #8b6900;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
    max-width: 780px;
    margin-bottom: 24px;
    font-size: clamp(2.6rem, 6vw, 5.25rem);
    font-weight: 600;
    letter-spacing: -0.055em;
    line-height: 0.99;
}

.hero-lead {
    max-width: 650px;
    margin-bottom: 30px;
    color: #4e4e4e;
    font-size: clamp(1.05rem, 2vw, 1.27rem);
}

.trust-row {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 12px 22px;
    margin: 0;
    padding: 0;
    color: #3c3c3c;
    font-size: 0.9rem;
    font-weight: 600;
}

.trust-row li::before {
    content: '✓';
    margin-right: 8px;
    color: #9b7500;
}

.intro-card {
    padding: clamp(28px, 5vw, 46px);
    background: var(--paper);
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.intro-card h2 {
    margin-bottom: 16px;
    font-size: clamp(1.7rem, 3vw, 2.45rem);
    letter-spacing: -0.035em;
    line-height: 1.12;
}

.intro-card > p:not(.card-kicker) { color: var(--muted); }

.primary-button {
    width: 100%;
    min-height: 58px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 30px;
    padding: 15px 19px 15px 22px;
    color: var(--ink);
    background: var(--sun);
    border: 0;
    border-radius: 12px;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: background 160ms ease, transform 160ms ease;
    text-decoration: none;
}

.primary-button:hover { background: var(--sun-strong); transform: translateY(-1px); }
.primary-button:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }

.primary-button span {
    display: grid;
    width: 32px;
    height: 32px;
    place-items: center;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    font-size: 1.2rem;
}

.primary-button .button-label {
    display: inline;
    width: auto;
    height: auto;
    background: transparent;
    border-radius: 0;
    font-size: inherit;
}

.primary-button:disabled {
    cursor: wait;
    opacity: 0.72;
    transform: none;
}

.build-note {
    min-height: 1.4em;
    margin: 14px 0 0;
    font-size: 0.78rem;
}

.demand-step[hidden],
.demand-mode-panel[hidden],
[data-exact-household-field][hidden],
.consumer-detail-panel[hidden],
[data-gas-unit-field][hidden] { display: none; }

.demand-wizard { padding: clamp(42px, 5.5vw, 72px) 0; }
.demand-intro { position: relative; z-index: 1; max-width: 860px; }
.demand-intro .eyebrow { margin-bottom: 14px; }
.demand-intro h1 {
    max-width: 820px;
    margin-bottom: 18px;
    font-size: clamp(2.35rem, 4.6vw, 4.25rem);
    line-height: 1.02;
}
.demand-intro .hero-lead { margin-bottom: 0; }
.demand-intro .demand-start-button { max-width: 330px; margin-top: 22px; margin-bottom: 18px; }

.demand-step-heading {
    position: relative;
    z-index: 1;
    max-width: 760px;
    margin-bottom: 32px;
}

.demand-step-heading h2 {
    margin-bottom: 14px;
    font-size: clamp(2.15rem, 5vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.05;
}

.demand-step-heading > p:not(.eyebrow) { color: var(--muted); }
.demand-form { position: relative; z-index: 1; max-width: 760px; }

.demand-choice-group {
    display: grid;
    gap: 10px;
    margin: 30px 0;
    padding: 0;
    border: 0;
}

.demand-choice-group legend {
    margin-bottom: 10px;
    font-size: 0.88rem;
    font-weight: 700;
}

.choice-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 15px 16px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    cursor: pointer;
}

.choice-card:has(input:checked) { border-color: #9b7500; box-shadow: 0 0 0 1px #9b7500; }
.choice-card input { width: 18px; height: 18px; margin: 3px 0 0; accent-color: #9b7500; }
.choice-card span { font-weight: 600; }
.demand-mode-panel { margin-top: 26px; }
.demand-mode-panel .field + .field { margin-top: 19px; }

.estimated-consumption {
    display: grid;
    gap: 5px;
    margin-top: 24px;
    padding: 22px;
    color: #fff;
    background: var(--ink);
    border-radius: 14px;
}

.estimated-consumption > span { color: #c9c9c9; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; }
.estimated-consumption strong { font-size: clamp(1.65rem, 4vw, 2.4rem); letter-spacing: -0.035em; }
.estimated-consumption p { margin: 5px 0 0; color: #c9c9c9; font-size: 0.78rem; }

.demand-navigation {
    display: grid;
    grid-template-columns: auto minmax(220px, 1fr);
    align-items: end;
    gap: 12px;
    margin-top: 34px;
}

.demand-navigation .secondary-button,
.demand-navigation .primary-button { margin-top: 0; }

.demand-consumers-form { max-width: 900px; }

.consumer-choice-fieldset {
    margin: 0;
    padding: 0;
    border: 0;
}

.consumer-choice-fieldset > legend {
    margin-bottom: 12px;
    font-size: 0.88rem;
    font-weight: 700;
}

.consumer-choice-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.consumer-choice-card { min-height: 92px; }
.consumer-choice-card > span { display: grid; gap: 3px; }
.consumer-choice-card strong { font-size: 0.96rem; }
.consumer-choice-card small { color: var(--muted); font-size: 0.76rem; font-weight: 500; }
.consumer-choice-none { background: #f7f6f0; }
.consumer-selection-error { display: block; margin-top: 8px; }

.consumer-detail-panel {
    margin-top: 24px;
    padding: clamp(20px, 4vw, 28px);
    background: #f7f6f0;
    border: 1px solid var(--line);
    border-radius: 16px;
}

.consumer-detail-heading {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 22px;
}

.consumer-detail-heading h3 { margin: 0; font-size: 1.25rem; }
.consumer-detail-heading output { font-size: 0.88rem; font-weight: 700; }
.field label small { color: var(--muted); font-size: 0.72rem; font-weight: 500; }

.consumer-optional-details {
    margin-top: 18px;
    border-top: 1px solid var(--line);
}

.consumer-optional-details summary {
    padding: 14px 0 0;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    cursor: pointer;
}

.consumer-optional-details[open] summary { margin-bottom: 16px; }

.custom-consumers { margin-top: 22px; }
.custom-consumer-add { margin-top: 0; }
.custom-consumer-list { display: grid; gap: 16px; margin-top: 18px; }

.custom-consumer-card {
    padding: clamp(20px, 4vw, 28px);
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(25, 25, 22, 0.06);
}

.custom-consumer-heading { margin-bottom: 22px; }
.custom-consumer-heading > div { display: flex; align-items: center; gap: 14px; }
.custom-consumer-remove {
    padding: 3px 0;
    color: #9a2c1f;
    background: transparent;
    border: 0;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 3px;
    cursor: pointer;
}
.custom-consumer-remove:focus-visible { outline: 3px solid rgba(244, 189, 0, 0.55); outline-offset: 3px; }
.custom-consumers-note { margin-top: 14px; }

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.assumption-note {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 0.76rem;
}

.demand-summary {
    margin-top: 28px;
    padding: clamp(22px, 4vw, 30px);
    color: #fff;
    background: var(--ink);
    border-radius: 16px;
}

.demand-summary h3 { margin-bottom: 18px; font-size: 1.25rem; }
.demand-summary dl { margin: 0; }
.demand-summary dl > div {
    display: flex;
    justify-content: space-between;
    gap: 24px;
    padding: 8px 0;
    color: #cecece;
    border-bottom: 1px solid #353535;
    font-size: 0.84rem;
}
.demand-summary dt, .demand-summary dd { margin: 0; }
.demand-summary dd { color: #fff; font-weight: 700; text-align: right; }
.demand-summary .demand-summary-total {
    align-items: baseline;
    margin-top: 7px;
    padding-top: 15px;
    color: #fff;
    border-bottom: 0;
    font-weight: 700;
}
.demand-summary-total dd { color: var(--sun); font-size: clamp(1.2rem, 3vw, 1.65rem); }

.calculation-basis {
    margin-top: 18px;
    padding: 16px 18px;
    background: #f7f6f0;
    border: 1px solid var(--line);
    border-radius: 12px;
}
.calculation-basis summary { font-size: 0.84rem; font-weight: 700; cursor: pointer; }
.calculation-basis > div { padding-top: 14px; color: var(--muted); font-size: 0.76rem; }
.calculation-basis p { margin-bottom: 10px; }
.calculation-basis p:last-child { margin-bottom: 0; }
.calculation-basis a { text-underline-offset: 3px; }

.calculator-section {
    scroll-margin-top: 24px;
    padding: clamp(70px, 9vw, 120px) 0;
    background: #f5f4ed;
}

.calculator-section[hidden],
.demand-wizard[hidden],
.process-section[hidden] { display: none; }

.calculator-grid {
    display: grid;
    grid-template-columns: minmax(280px, 0.7fr) minmax(520px, 1.3fr);
    align-items: start;
    gap: clamp(38px, 7vw, 90px);
}

.calculator-heading {
    position: sticky;
    top: 34px;
}

.calculator-heading h2 {
    margin-bottom: 18px;
    font-size: clamp(2rem, 4vw, 3.45rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.06;
}

.calculator-heading > p:not(.eyebrow) { color: var(--muted); }

.live-summary {
    display: grid;
    margin-top: 34px;
    padding: 24px;
    background: var(--ink);
    color: #fff;
    border-radius: 16px;
}

.live-summary span {
    margin-bottom: 8px;
    color: #bdbdbd;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.live-summary strong {
    color: var(--sun);
    font-size: clamp(1.8rem, 4vw, 2.65rem);
    letter-spacing: -0.045em;
    line-height: 1.1;
}

.live-summary small { margin-top: 9px; color: #aaa; }

.calculator-form {
    padding: clamp(26px, 5vw, 46px);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 18px 55px rgba(17, 17, 17, 0.07);
}

.form-block + .form-block {
    margin-top: 36px;
    padding-top: 36px;
    border-top: 1px solid var(--line);
}

.form-block-heading {
    display: grid;
    grid-template-columns: 38px 1fr;
    gap: 14px;
    margin-bottom: 24px;
}

.form-number {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #684f00;
    background: #fff1b8;
    border-radius: 50%;
    font-size: 0.72rem;
    font-weight: 700;
}

.form-block-heading h3 { margin-bottom: 4px; font-size: 1.25rem; }
.form-block-heading p { margin: 0; color: var(--muted); font-size: 0.88rem; }

.field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

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

.roof-areas {
    display: grid;
    gap: 16px;
}

.roof-area-card {
    padding: 20px;
    background: #fbfaf6;
    border: 1px solid var(--line);
    border-radius: 14px;
}

.roof-area-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-bottom: 18px;
}

.roof-area-heading h4 {
    margin: 0;
    font-size: 1rem;
}

.roof-field-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 15px;
}

.remove-roof-button {
    padding: 7px 9px;
    color: #7a271a;
    background: transparent;
    border: 0;
    border-radius: 7px;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 700;
    cursor: pointer;
}

.remove-roof-button:hover { background: #fff0ed; }
.remove-roof-button:focus-visible,
.secondary-button:focus-visible { outline: 3px solid rgba(244, 189, 0, 0.55); outline-offset: 2px; }

.secondary-button {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    margin-top: 16px;
    padding: 11px 16px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #b9b8b1;
    border-radius: 10px;
    font: inherit;
    font-size: 0.87rem;
    font-weight: 700;
    cursor: pointer;
}

.secondary-button:hover { border-color: #7d6100; background: #fffaf0; }
.secondary-button:disabled { cursor: not-allowed; opacity: 0.5; }

.field { min-width: 0; }
.field label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.86rem;
    font-weight: 700;
}

.field input,
.field select {
    width: 100%;
    min-height: 54px;
    padding: 13px 14px;
    color: var(--ink);
    background: #fff;
    border: 1px solid #c9c8c1;
    border-radius: 10px;
    font: inherit;
    outline: none;
    transition: border-color 150ms ease, box-shadow 150ms ease;
}

.field select {
    appearance: none;
    padding-right: 42px;
    background-image: linear-gradient(45deg, transparent 50%, #555 50%), linear-gradient(135deg, #555 50%, transparent 50%);
    background-position: calc(100% - 19px) 23px, calc(100% - 14px) 23px;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}

.field input:focus,
.field select:focus {
    border-color: #7d6100;
    box-shadow: 0 0 0 3px rgba(244, 189, 0, 0.25);
}

.field input[aria-invalid="true"],
.field select[aria-invalid="true"] { border-color: #b42318; }

.field input::placeholder { color: #94938e; opacity: 1; }

.input-unit { position: relative; }
.input-unit input { padding-right: 64px; }
.input-unit span {
    position: absolute;
    top: 50%;
    right: 14px;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 600;
    transform: translateY(-50%);
    pointer-events: none;
}

.field-help,
.field-error {
    display: block;
    min-height: 1.25em;
    margin-top: 6px;
    font-size: 0.75rem;
}

.field-help { color: var(--muted); }
.field-error { color: #b42318; }
.field-help + .field-error { margin-top: 0; }

.form-submit { margin-top: 36px; }
.form-status {
    display: none;
    margin-top: 16px;
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 0.86rem;
}

.form-status.is-success {
    display: block;
    color: #315314;
    background: #eef8e5;
    border: 1px solid #b8d79d;
}

.form-status.is-loading,
.form-status.is-error { display: block; }

.form-status.is-loading {
    color: #5f4b08;
    background: #fff8dc;
    border: 1px solid #e9d382;
}

.form-status.is-error {
    color: #7a271a;
    background: #fff0ed;
    border: 1px solid #f1b7ad;
}

.results-section {
    scroll-margin-top: 24px;
    padding: clamp(70px, 9vw, 120px) 0;
    background: var(--ink);
    color: #fff;
}

.results-section[hidden] { display: none; }

.results-heading {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(250px, 0.6fr);
    align-items: end;
    gap: 40px;
    margin-bottom: 42px;
}

.results-heading h2 {
    max-width: 800px;
    margin-bottom: 0;
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.06;
}

.result-location {
    margin: 0;
    color: #bdbdbd;
    font-size: 0.88rem;
}

.result-metrics {
    display: grid;
    grid-template-columns: 1.25fr 1fr 1fr;
    gap: 16px;
    margin-bottom: 20px;
}

.roof-results {
    margin-bottom: 20px;
    padding: clamp(24px, 4vw, 34px);
    color: var(--ink);
    background: #f7f6f0;
    border-radius: 17px;
}

.roof-results[hidden] { display: none; }

.roof-results-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 20px;
}

.roof-results-heading h3 { margin: 0; font-size: 1.25rem; }
.roof-results-heading p { margin: 0; color: var(--muted); font-size: 0.82rem; }

.roof-result-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.roof-result-card {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4px 18px;
    padding: 16px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 11px;
}

.roof-result-card strong { font-size: 0.9rem; }
.roof-result-card span { color: var(--muted); font-size: 0.76rem; }
.roof-result-card b { grid-column: 2; grid-row: 1 / span 2; align-self: center; font-size: 0.94rem; }

.metric-card {
    min-width: 0;
    padding: clamp(24px, 4vw, 34px);
    color: var(--ink);
    background: #fff;
    border-radius: 17px;
}

.metric-card-primary { background: var(--sun); }

.metric-card > span {
    display: block;
    margin-bottom: 24px;
    color: #5b5b57;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.metric-card strong {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px;
    font-size: clamp(2rem, 4.3vw, 3.65rem);
    letter-spacing: -0.05em;
    line-height: 1;
}

.metric-card strong small {
    font-size: 0.88rem;
    letter-spacing: 0;
}

.yield-panel {
    padding: clamp(24px, 4vw, 38px);
    color: var(--ink);
    background: #fff;
    border-radius: 18px;
}

.yield-panel-heading {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 28px;
    margin-bottom: 36px;
}

.yield-panel-heading .card-kicker { margin-bottom: 8px; }
.yield-panel-heading h3 { margin-bottom: 0; font-size: 1.45rem; }
.yield-panel-heading > p { margin: 0; color: var(--muted); font-size: 0.82rem; }

.yield-panel-controls {
    display: grid;
    justify-items: end;
    gap: 12px;
}

.yield-panel-controls > p { margin: 0; color: var(--muted); font-size: 0.82rem; }

.chart-view-toggle {
    display: inline-flex;
    padding: 3px;
    background: #f1f0eb;
    border: 1px solid var(--line);
    border-radius: 999px;
}

.chart-view-button {
    min-height: 34px;
    padding: 7px 14px;
    color: #62625e;
    background: transparent;
    border: 0;
    border-radius: 999px;
    font: inherit;
    font-size: 0.76rem;
    font-weight: 700;
    cursor: pointer;
}

.chart-view-button:hover { color: var(--ink); }
.chart-view-button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }
.chart-view-button.is-active { color: var(--ink); background: #fff; box-shadow: 0 1px 4px rgb(0 0 0 / 10%); }

.yield-chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 9px 18px;
    margin: -16px 0 22px;
}

.yield-chart-legend[hidden] { display: none; }
.chart-legend-item { display: inline-flex; align-items: center; gap: 7px; color: #5f5f5a; font-size: 0.72rem; }
.chart-legend-item i { width: 10px; height: 10px; flex: 0 0 10px; border-radius: 3px; }

.yield-chart {
    min-height: 305px;
    display: grid;
    grid-template-columns: repeat(12, minmax(34px, 1fr));
    align-items: end;
    gap: 10px;
    padding-top: 20px;
    border-bottom: 1px solid var(--line);
}

.chart-column {
    height: 275px;
    display: grid;
    grid-template-rows: 26px 1fr 31px;
    align-items: end;
    text-align: center;
}

.chart-value { color: #777; font-size: 0.66rem; }

.chart-bar-track {
    height: 100%;
    display: flex;
    align-items: end;
    justify-content: center;
}

.chart-bar {
    width: min(100%, 42px);
    min-height: 4px;
    display: block;
    background: var(--sun);
    border-radius: 5px 5px 0 0;
    transform-origin: bottom;
    animation: reveal-bar 550ms ease both;
}

.chart-bar-stack {
    width: min(100%, 42px);
    min-height: 4px;
    display: flex;
    flex-direction: column-reverse;
    overflow: hidden;
    border-radius: 5px 5px 0 0;
    transform-origin: bottom;
    animation: reveal-bar 550ms ease both;
}

.chart-bar-segment { display: block; min-height: 1px; }
.chart-bar-segment + .chart-bar-segment { border-bottom: 1px solid rgb(255 255 255 / 55%); }

.chart-label { align-self: center; font-size: 0.72rem; font-weight: 700; }

@keyframes reveal-bar {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

.table-scroll { display: none; overflow-x: auto; }
.yield-table { width: 100%; border-collapse: collapse; }
.yield-table th, .yield-table td { padding: 12px 8px; border-bottom: 1px solid var(--line); text-align: right; }
.yield-table th:first-child { text-align: left; }
.yield-table thead th { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; }
.table-roof-marker { display: inline-block; width: 9px; height: 9px; margin-right: 6px; border-radius: 3px; vertical-align: 1px; }
.roof-table-energy, .roof-table-share { display: block; white-space: nowrap; }
.roof-table-share { margin-top: 2px; color: var(--ink); font-size: 0.82rem; }

.economics-results {
    margin-top: 20px;
    padding: clamp(24px, 4vw, 38px);
    color: var(--ink);
    background: #f7f6f0;
    border-radius: 18px;
}

.economics-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 28px;
    margin-bottom: 28px;
}

.economics-heading .card-kicker { margin-bottom: 8px; }
.economics-heading h3 { margin-bottom: 0; font-size: 1.45rem; }
.economics-heading > p { margin: 0; color: var(--muted); font-size: 0.82rem; }

.energy-flow-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.flow-card,
.financial-card {
    min-width: 0;
    padding: 20px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 13px;
}

.flow-card > span,
.financial-card > span {
    display: block;
    margin-bottom: 12px;
    color: #5b5b57;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.flow-card strong,
.financial-card strong {
    display: block;
    font-size: clamp(1.35rem, 2.7vw, 2rem);
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.flow-card small,
.financial-card small {
    display: block;
    margin-top: 8px;
    color: var(--muted);
    font-size: 0.72rem;
}

.financial-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.financial-card { padding: 24px 20px; }
.financial-card-primary { background: var(--sun); border-color: var(--sun); }
.financial-card-primary small { color: #574400; }

.assumptions {
    margin-top: 20px;
    padding: clamp(24px, 4vw, 34px);
    color: #d6d6d6;
    background: #232323;
    border: 1px solid #363636;
    border-radius: 17px;
}

.assumptions h3 { margin-bottom: 14px; color: #fff; font-size: 1.05rem; }
.assumptions ul { margin: 0 0 18px; padding-left: 20px; }
.assumptions li + li { margin-top: 5px; }
.assumptions p { margin-bottom: 0; font-size: 0.82rem; }
.assumptions .data-sources { margin-top: 12px; color: #aaa; }
.data-sources a { text-underline-offset: 3px; }

.process-section { padding: clamp(64px, 8vw, 108px) 0; }

.section-heading {
    max-width: 710px;
    margin-bottom: 42px;
}

.section-heading h2 {
    margin-bottom: 0;
    font-size: clamp(2rem, 4vw, 3.35rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.08;
}

.process-grid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin: 0;
    padding: 0;
}

.process-card {
    min-height: 250px;
    padding: 28px;
    background: var(--soft);
    border: 1px solid var(--line);
    border-radius: 18px;
}

.process-card.is-active { border-top: 5px solid var(--sun); padding-top: 24px; }

.step-number {
    display: block;
    margin-bottom: 50px;
    color: #8a8a84;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.process-card h3 {
    margin-bottom: 10px;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
}

.process-card p { margin: 0; color: var(--muted); font-size: 0.94rem; }

.site-footer {
    padding: 26px 0;
    color: #d8d8d8;
    background: var(--ink);
    font-size: 0.84rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.footer-inner nav { display: flex; gap: 22px; }
.footer-inner a { text-underline-offset: 4px; }

@media (max-width: 860px) {
    .hero-grid { grid-template-columns: 1fr; gap: 38px; }
    .hero-copy { max-width: 720px; }
    .intro-card { max-width: 620px; }
    .process-grid { grid-template-columns: 1fr; }
    .process-card { min-height: auto; }
    .step-number { margin-bottom: 28px; }
    .calculator-grid { grid-template-columns: 1fr; }
    .calculator-heading { position: static; }
    .calculator-heading > p:not(.eyebrow) { max-width: 620px; }
    .live-summary { max-width: 620px; }
    .results-heading { grid-template-columns: 1fr; gap: 20px; }
    .result-metrics { grid-template-columns: 1fr; }
    .metric-card > span { margin-bottom: 14px; }
    .roof-field-grid { grid-template-columns: 1fr 1fr; }
    .roof-field-grid .field:last-child { grid-column: 1 / -1; }
    .energy-flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .financial-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .shell { width: min(calc(100% - 28px), var(--shell)); }
    .header-inner { min-height: 70px; }
    .brand img { width: 118px; }
    .header-label { font-size: 0.68rem; letter-spacing: 0.07em; }
    .hero { padding: 50px 0 58px; }
    .demand-wizard { padding: 34px 0 42px; }
    h1 { font-size: clamp(2.45rem, 12.4vw, 3.5rem); }
    .demand-intro h1 { font-size: clamp(2.05rem, 10vw, 3rem); line-height: 1.04; }
    .hero-lead { font-size: 1rem; }
    .trust-row { display: grid; gap: 8px; }
    .intro-card { padding: 25px 21px; border-radius: 18px; }
    .demand-step-heading { margin-bottom: 24px; }
    .demand-form { padding: 24px 18px; }
    .demand-navigation { grid-template-columns: 1fr; }
    .demand-navigation .secondary-button { order: 2; width: 100%; }
    .consumer-choice-grid { grid-template-columns: 1fr; }
    .consumer-choice-card { min-height: auto; }
    .consumer-detail-heading { display: grid; gap: 5px; }
    .consumer-detail-panel { padding: 19px 16px; }
    .custom-consumer-card { padding: 19px 16px; }
    .custom-consumer-heading > div { align-items: flex-start; justify-content: space-between; }
    .custom-consumer-add { width: 100%; }
    .demand-summary dl > div { display: grid; gap: 2px; }
    .demand-summary dd { text-align: left; }
    .calculator-section { padding: 58px 0; }
    .calculator-grid { gap: 30px; }
    .calculator-form { padding: 25px 20px; border-radius: 18px; }
    .field-grid { grid-template-columns: 1fr; gap: 19px; }
    .roof-field-grid { grid-template-columns: 1fr; }
    .roof-field-grid .field:last-child { grid-column: auto; }
    .roof-area-card { padding: 17px 15px; }
    .roof-results-heading { display: block; }
    .roof-results-heading p { margin-top: 5px; }
    .roof-result-grid { grid-template-columns: 1fr; }
    .roof-result-card { grid-template-columns: 1fr; }
    .roof-result-card b { grid-column: 1; grid-row: auto; margin-top: 5px; }
    .form-block + .form-block { margin-top: 30px; padding-top: 30px; }
    .form-block-heading { grid-template-columns: 34px 1fr; gap: 11px; }
    .live-summary { margin-top: 25px; padding: 20px; }
    .results-section { padding: 58px 0; }
    .result-metrics { gap: 11px; }
    .metric-card { padding: 23px; }
    .yield-panel { padding: 23px 18px; }
    .yield-panel-heading { display: block; margin-bottom: 20px; }
    .yield-panel-heading > p { margin-top: 6px; }
    .yield-panel-controls { justify-items: start; margin-top: 14px; }
    .yield-chart-legend { margin: 0 0 18px; }
    .chart-view-button { padding-inline: 12px; }
    .economics-heading { display: block; }
    .economics-heading > p { margin-top: 6px; }
    .energy-flow-grid { grid-template-columns: 1fr; }
    .flow-card, .financial-card { padding: 19px; }
    .yield-chart { display: none; }
    .table-scroll { display: block; }
    .process-section { padding: 58px 0; }
    .section-heading { margin-bottom: 30px; }
    .process-card { padding: 23px; }
    .process-card.is-active { padding-top: 19px; }
    .footer-inner { flex-direction: column; gap: 10px; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition-duration: 0.01ms !important; }
}
/* Compact calculator: scoped to the input layout; result and wizard styles stay independent. */
.compact-calculator { padding: 36px 0; }
.compact-calculator .calculator-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; max-width: 1080px; }
.compact-calculator .calculator-heading { position: static; }
.compact-calculator .calculator-heading h2 { font-size: clamp(1.65rem, 3vw, 2.25rem); margin: 0 0 8px; }
.compact-calculator .calculator-heading > p { margin: 0; }
.compact-calculator .calculator-form { padding: 28px 32px; }
.compact-calculator .form-block + .form-block { margin-top: 24px; padding-top: 24px; }
.compact-calculator .form-block-heading { margin-bottom: 16px; gap: 10px; }
.compact-calculator .form-block-heading h3 { font-size: 1.15rem; }
.compact-calculator .location-module-grid { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); }
.compact-calculator .field-grid { gap: 18px 24px; }
.compact-calculator .field { margin: 0; min-width: 0; }
.compact-calculator .field-error:empty { display: none; }
.compact-calculator .roof-area-card { padding: 16px; }
.compact-calculator .roof-area-heading { margin-bottom: 12px; }
.compact-calculator .live-summary { margin-top: 14px; padding: 12px 16px; border-radius: 10px; grid-template-columns: 1fr auto; align-items: center; gap: 4px 16px; }
.compact-calculator .live-summary span { margin: 0; }
.compact-calculator .live-summary strong { font-size: 1.65rem; grid-column: 2; grid-row: 1 / 3; }
.compact-calculator .live-summary small { margin: 0; }
.compact-calculator .economics-fields > .field:nth-child(3) { grid-column: 1 / -1; }
.compact-calculator .economics-fields > .field:nth-child(3) .input-unit { max-width: 460px; }
.compact-calculator details { font-size: .88rem; }
.compact-calculator summary, .compact-process summary { cursor: pointer; padding: 12px 0; min-height: 44px; }
.compact-calculator summary:focus-visible, .compact-process summary:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; }
.compact-calculator .price-explanation p { margin: 0 0 10px; color: var(--muted); }
.compact-calculator .extra-assumptions { margin-top: 16px; border-top: 1px solid var(--line); }
.compact-calculator .extra-assumptions .field { max-width: 460px; margin: 4px 0 12px; }
.compact-calculator .form-submit { margin-top: 24px; }
.compact-calculator .form-status:empty { display: none; }
.compact-process { padding: 18px 0 28px; }
.compact-process .shell { max-width: 1080px; }
.compact-process summary { font-weight: 600; }
.compact-process .process-grid { margin: 12px 0 0; gap: 16px; }
.compact-process .process-card, .compact-process .process-card.is-active { min-height: 0; padding: 18px; }
.compact-process .process-card h3 { margin: 12px 0 8px; }
@media (max-width: 640px) {
    .compact-calculator { padding: 24px 0; }
    .compact-calculator .calculator-grid { gap: 16px; }
    .compact-calculator .calculator-form { padding: 20px 16px; }
    .compact-calculator .field-grid, .compact-calculator .location-module-grid, .compact-calculator .roof-field-grid { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .compact-calculator .form-block + .form-block { margin-top: 20px; padding-top: 20px; }
    .compact-calculator .live-summary { grid-template-columns: minmax(0, 1fr); gap: 4px; }
    .compact-calculator .live-summary strong { grid-column: auto; grid-row: auto; }
    .compact-calculator .live-summary small { overflow-wrap: anywhere; }
    .compact-calculator .form-block-heading p { font-size: .85rem; }
}
/* Compact result overview: primary figures first, supporting data on demand. */
.compact-results { padding: 32px 0; }
.compact-results > .shell { max-width: 1080px; }
.compact-results .results-heading { gap: 20px; margin-bottom: 20px; }
.compact-results .results-heading h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
.compact-results .eyebrow { margin-bottom: 8px; }
.compact-results .metric-card { padding: 18px; border-radius: 12px; }
.compact-results .metric-card > span { margin-bottom: 12px; }
.compact-results .metric-card strong { font-size: clamp(1.55rem, 3vw, 2.4rem); }
.compact-results .economics-results { margin: 0 0 16px; padding: 20px; }
.compact-results .economics-heading { margin-bottom: 16px; gap: 16px; }
.compact-results .economics-heading h3 { font-size: 1.2rem; }
.compact-results .financial-grid { margin: 0 0 12px; }
.compact-results .flow-card, .compact-results .financial-card { padding: 14px; }
.compact-results .flow-card > span, .compact-results .financial-card > span { margin-bottom: 8px; letter-spacing: .02em; }
.compact-results .flow-card strong, .compact-results .financial-card strong { font-size: clamp(1.25rem, 2.5vw, 1.75rem); overflow-wrap: anywhere; }
.compact-results .roof-results, .compact-results .yield-panel { margin: 0 0 12px; padding: 8px 20px; border-radius: 12px; }
.compact-results summary { cursor: pointer; padding: 12px 0; min-height: 44px; font-weight: 600; }
.compact-results summary:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; }
.compact-results .roof-results-heading { margin: 8px 0 12px; }
.compact-results .roof-results-heading h3 { display: none; }
.compact-results .roof-result-grid { margin-bottom: 12px; }
.compact-results .yield-panel-heading { margin: 12px 0 18px; }
.compact-results .yield-panel-heading h3 { display: none; }
.compact-results .yield-chart { min-height: 240px; margin-bottom: 12px; }
.compact-results .chart-column { height: 220px; }
.compact-results .assumptions { margin-top: 12px; padding: 8px 20px 16px; }
.compact-results .assumptions details ul { margin-top: 8px; }
.compact-results .assumptions > p { margin-top: 10px; }
.compact-results .table-scroll { max-width: 100%; }
@media (max-width: 640px) {
    .compact-results { padding: 24px 0; }
    .compact-results .results-heading { grid-template-columns: 1fr; gap: 10px; }
    .compact-results .result-location { overflow-wrap: anywhere; }
    .compact-results .result-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
    .compact-results .metric-card-primary { grid-column: 1 / -1; }
    .compact-results .metric-card { padding: 14px; }
    .compact-results .metric-card > span { font-size: .7rem; letter-spacing: .02em; }
    .compact-results .metric-card strong { font-size: 1.6rem; }
    .compact-results .economics-results { padding: 16px 12px; }
    .compact-results .financial-grid, .compact-results .energy-flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
    .compact-results .financial-card-primary { grid-column: 1 / -1; }
    .compact-results .flow-card, .compact-results .financial-card { padding: 12px; }
    .compact-results .roof-results, .compact-results .yield-panel, .compact-results .assumptions { padding-inline: 14px; }
    .compact-results .roof-result-grid { grid-template-columns: 1fr; }
}
.compact-results .flow-card > span, .compact-results .financial-card > span { overflow-wrap: anywhere; hyphens: auto; }
@media (max-width: 359px) {
    .compact-results .financial-grid, .compact-results .energy-flow-grid { grid-template-columns: minmax(0, 1fr); }
}


/* Mobile monthly chart: same data and scale as desktop, touch-accessible details. */
.chart-view-toggle[hidden] { display: none !important; }
.mobile-yield-chart, .mobile-yield-hint { display: none; }
.yield-values { margin-top: 20px; }
.yield-values > summary { cursor: pointer; font-size: .85rem; font-weight: 650; padding-block: 12px; }
.yield-values .table-scroll { display: block; }
@media (max-width: 760px) {
    .compact-results .yield-chart, .yield-chart { display: none; }
    .mobile-yield-chart { display: grid; gap: 4px; padding: 0; margin: 12px 0; list-style: none; }
    .mobile-yield-row { display: grid; grid-template-columns: 1fr auto; gap: 6px 12px; width: 100%; min-height: 55px; padding: 10px 0; border: 0; border-radius: 0; background: transparent; color: var(--ink); font: inherit; text-align: left; }
    button.mobile-yield-row { cursor: pointer; }
    button.mobile-yield-row:focus-visible { outline: 2px solid var(--ink); outline-offset: 4px; }
    .mobile-yield-month { font-size: .85rem; font-weight: 700; }
    .mobile-yield-value { font-size: .8rem; font-variant-numeric: tabular-nums; }
    .mobile-yield-track { grid-column: 1 / -1; height: 13px; border-radius: 4px; background: #e9e7df; overflow: hidden; }
    .mobile-yield-bar { display: flex; height: 100%; background: var(--sun); border-radius: 4px; overflow: hidden; }
    .mobile-yield-bar > span { flex-basis: 0; min-width: 0; }
    .mobile-yield-details { padding: 8px 10px; border-radius: 6px; background: #f2f1eb; }
    .mobile-yield-details[hidden] { display: none; }
    .mobile-yield-details p { margin: 4px 0; font-size: .75rem; }
    .mobile-yield-details i { display: inline-block; width: 9px; height: 9px; margin-right: 7px; border-radius: 2px; }
    .mobile-yield-hint:not([hidden]) { display: block; color: var(--muted); font-size: .75rem; margin: 0 0 12px; }
    .yield-values .yield-table th, .yield-values .yield-table td { padding: 10px 5px; font-size: .75rem; }
}
.location-input-wrap { position: relative; }
.location-input-wrap #location { padding-right: 58px; }
.location-detect-button { position: absolute; top: 5px; right: 5px; width: 44px; height: 44px; padding: 10px; border: 0; border-radius: 8px; background: transparent; color: #665000; cursor: pointer; display: grid; place-items: center; }
.location-detect-button:hover { background: #fff1b8; }
.location-detect-button:focus-visible { outline: 3px solid var(--sun); outline-offset: 1px; }
.location-detect-button[aria-busy="true"] svg { visibility: hidden; }
.location-detect-button[aria-busy="true"]::after { content: ''; position: absolute; width: 19px; height: 19px; border: 2px solid #d6d2c5; border-top-color: #665000; border-radius: 50%; animation: location-spin .8s linear infinite; }
#location-detection-status:empty { display: none; }
@keyframes location-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .location-detect-button[aria-busy="true"]::after { animation: none; } }