/* === Heat Pumps for Homes in Ireland — interactive guide === */

.hp-guide h1 {
    margin-bottom: var(--space-sm);
    font-size: clamp(2rem, 4.5vw, 3rem);
    line-height: 1.15;
}

/* ── Hero band ─────────────────────────────────────────────────────── */
.hp-hero {
    background: linear-gradient(160deg, var(--kw-green-tint) 0%, var(--white) 70%);
    padding: var(--space-xl) 0 var(--space-lg);
}
.hp-hero-inner {
    max-width: 72rem;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-xl);
    align-items: center;
}
.hp-hero-media img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: block;
}
@media (max-width: 820px) {
    .hp-hero-inner {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
    .hp-hero-media {
        order: -1;
        max-width: 30rem;
        margin: 0 auto;
    }
}

/* ── Stat band ─────────────────────────────────────────────────────── */
.hp-stat-band {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}
.hp-stat {
    background: var(--white);
    border: 1px solid var(--grey-border);
    border-top: 4px solid #22c55e;
    border-radius: var(--radius-md);
    padding: var(--space-md);
    text-align: center;
    box-shadow: var(--shadow-md);
}
.hp-stat-num {
    display: block;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 800;
    color: #166534;
    line-height: 1.2;
    font-variant-numeric: tabular-nums;
}
.hp-stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--grey-text);
    margin-top: var(--space-xs);
}
@media (max-width: 640px) {
    .hp-stat-band {
        grid-template-columns: 1fr;
    }
}

/* ── Calculator card ───────────────────────────────────────────────── */
.hp-calc-card {
    padding: var(--space-lg);
    margin: var(--space-lg) 0;
}
.hp-calc-controls {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    align-items: start;
    margin-bottom: var(--space-md);
}

/* ── Fuel switch (kitchen-sink .kw-option radios) ─────────────────── */
.hp-fuel-switch {
    border: none;
    padding: 0;
    margin: 0 0 var(--space-md) 0;
}

/* ── Comparison table ──────────────────────────────────────────────── */
.hp-compare-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}
.hp-compare-table th,
.hp-compare-table td {
    padding: 0.6rem 0.75rem;
    border-bottom: 1px solid var(--grey-border);
    text-align: right;
    font-variant-numeric: tabular-nums;
}
.hp-compare-table th:first-child,
.hp-compare-table td:first-child {
    text-align: left;
}
.hp-compare-table thead th {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--grey-text);
}
.hp-compare-table tbody tr:last-child td {
    border-bottom: none;
}
.hp-cell-label {
    font-weight: 600;
    color: var(--grey-text);
    font-size: 0.85rem;
}

/* ── Benefits grid ─────────────────────────────────────────────────── */
.hp-benefits-grid .kw-card {
    padding: var(--space-lg);
    text-align: center;
}

/* ── FAQ ───────────────────────────────────────────────────────────── */
.hp-faq-item {
    border-bottom: 1px solid var(--grey-border);
    padding: var(--space-sm) 0;
}
.hp-faq-item summary {
    font-weight: 600;
    cursor: pointer;
    padding: 0.5rem 0;
}
.hp-faq-item summary:hover {
    color: var(--kw-blue);
}
.hp-faq-item p {
    padding: 0.5rem 0 0.75rem 0;
    color: var(--grey-text);
}

/* ── Next steps cards ──────────────────────────────────────────────── */
.hp-next-grid .kw-card {
    padding: var(--space-lg);
    text-align: center;
}

/* ── Calculator: loading spinner / results swap ───────── */
/* The spinner overlays the results area, and the table stays
   laid out (visibility:hidden) until results are ready — the
   card's height never changes between loading and loaded. */
#hp-results { position: relative; }
#hp-loading {
    position: absolute;
    inset: 0;
    justify-content: center;
}
#hp-loading[hidden] { visibility: hidden; }
#hp-compare-table { visibility: hidden; }
#hp-results.results-ready #hp-compare-table { visibility: visible; }

/* ── Assumptions (inside the calculator card) ─────────────────── */
#assumptions {
    margin-top: var(--space-md);
    border-top: 1px solid var(--grey-border);
}
#assumptions summary {
    cursor: pointer;
    padding: var(--space-sm) 0;
}
#assumptions > div {
    padding: var(--space-sm) 0 var(--space-md) 0;
}
#assumptions ul {
    padding-left: 1.25rem;
}
#assumptions li {
    margin-bottom: var(--space-sm);
}