.pool-calculator-page {
    --pool-primary: #0d6efd;
    --pool-primary-soft: #e9f2ff;
    --pool-success-soft: #eafbf1;
    --pool-ink: #0f172a;
    --pool-muted: #5b6475;
}

.pool-calculator-hero {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(13, 110, 253, 0.12);
    border-radius: 28px;
    padding: 2rem;
    background:
        radial-gradient(circle at top right, rgba(13, 110, 253, 0.14), transparent 34%),
        linear-gradient(135deg, #ffffff 0%, #f6f9ff 55%, #eef6ff 100%);
}

.pool-calculator-kicker,
.pool-section-label {
    color: var(--pool-primary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.pool-calculator-flow {
    display: grid;
    gap: 0.9rem;
}

.pool-flow-card {
    display: grid;
    gap: 0.25rem;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.06);
}

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

.pool-flow-icon,
.pool-section-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 16px;
    background: var(--pool-primary-soft);
    color: var(--pool-primary);
    font-size: 1.3rem;
}

.pool-section-icon-secondary {
    background: #eef7ff;
}

.pool-section-icon-success {
    background: var(--pool-success-soft);
    color: #198754;
}

.pool-calculator-panel {
    border-radius: 28px;
}

.shape-selector {
    display: grid;
    gap: 0.9rem;
}

.shape-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.shape-option-card {
    display: grid;
    gap: 0.35rem;
    padding: 1rem 1.1rem;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-radius: 20px;
    background: #fff;
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.shape-option-card i {
    color: var(--pool-primary);
    font-size: 1.2rem;
}

.shape-option-card small {
    color: var(--pool-muted);
    font-size: 0.83rem;
}

.shape-option input:checked + .shape-option-card,
.shape-option-card.is-selected {
    border-color: rgba(13, 110, 253, 0.45);
    background: linear-gradient(180deg, #ffffff 0%, #eef5ff 100%);
    box-shadow: 0 14px 30px rgba(13, 110, 253, 0.12);
    transform: translateY(-1px);
}

.pool-formula {
    border-radius: 18px;
    padding: 1rem 1.1rem;
    background: #f8fbff;
    border: 1px dashed rgba(13, 110, 253, 0.28);
}

.pool-formula-label {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--pool-muted);
    font-size: 0.84rem;
}

.pool-calculate-btn {
    min-height: 3.4rem;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 20px 40px rgba(25, 135, 84, 0.18);
}

.pool-calculator-sidebar {
    position: sticky;
    top: 104px;
}

.pool-volume-value {
    color: var(--pool-ink);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1;
}

.pool-volume-metric {
    color: var(--pool-muted);
    font-size: 1rem;
}

.pool-volume-note {
    padding: 0.95rem 1rem;
    border-radius: 18px;
    background: #f8fafc;
    color: var(--pool-muted);
    font-size: 0.92rem;
}

.pool-help-banner {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.9rem;
    align-items: center;
    padding: 1rem 1.1rem;
    border-radius: 22px;
    text-decoration: none;
    color: #114e2a;
    background: linear-gradient(135deg, #effff5 0%, #ddf9e8 100%);
    border: 1px solid rgba(25, 135, 84, 0.16);
    box-shadow: 0 14px 28px rgba(25, 135, 84, 0.1);
}

.pool-help-banner:hover {
    color: #114e2a;
}

.pool-help-banner-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: 16px;
    background: rgba(25, 135, 84, 0.12);
    font-size: 1.35rem;
}

.pool-help-banner strong,
.pool-results-summary strong {
    display: block;
}

.pool-help-banner span:last-child {
    display: block;
    color: rgba(17, 78, 42, 0.84);
    font-size: 0.9rem;
}

.calculator-results {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.calculator-results.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.pool-results-summary {
    min-width: 220px;
    padding: 0.95rem 1rem;
    border-radius: 18px;
    background: #f8fbff;
    border: 1px solid rgba(13, 110, 253, 0.12);
}

.pool-results-summary span,
.pool-results-summary small {
    display: block;
    color: var(--pool-muted);
}

.pool-results-summary strong {
    color: var(--pool-ink);
    font-size: 1.35rem;
}

.pool-results-table thead th {
    color: #334155;
    font-size: 0.84rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom-width: 1px;
}

.pool-results-table tbody tr:last-child td {
    border-bottom: 0;
}

.pool-dose-value {
    display: block;
    font-weight: 700;
    color: var(--pool-ink);
}

.pool-dose-note {
    display: block;
    color: var(--pool-muted);
    font-size: 0.8rem;
}

.pool-when-use {
    color: var(--pool-muted);
    font-size: 0.92rem;
    min-width: 220px;
}

.pool-results-footnote {
    margin-top: 1rem;
    color: var(--pool-muted);
    font-size: 0.92rem;
}

.pool-whatsapp-cta {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 1.4rem;
    border-radius: 24px;
    background: linear-gradient(135deg, #f6fff8 0%, #e6fff0 100%);
    border: 1px solid rgba(25, 135, 84, 0.14);
}

.pool-seo-copy p:last-child,
.pool-checklist {
    margin-bottom: 0;
}

.pool-checklist {
    padding-left: 1.15rem;
    color: var(--pool-muted);
}

.pool-checklist li + li {
    margin-top: 0.6rem;
}

@media (min-width: 768px) {
    .shape-selector {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .pool-whatsapp-cta {
        align-items: center;
        justify-content: space-between;
        flex-direction: row;
    }
}

@media (max-width: 991.98px) {
    .pool-calculator-sidebar {
        position: static;
        top: auto;
    }
}

@media (max-width: 767.98px) {
    .pool-calculator-hero {
        padding: 1.35rem;
        border-radius: 24px;
    }

    .pool-calculator-panel {
        border-radius: 24px;
    }

    .pool-results-table th,
    .pool-results-table td {
        white-space: nowrap;
    }
}