/*
 * Solira — Reconstitution / Concentration calculator (core 1.5.40)
 * Uses peptide-theme design tokens (CSS custom properties) so it stays on
 * brand. Mobile-first. RUO: presents a solution property, never a dose.
 */

.sol-calc-page {
    background: var(--color-gray-lightest, #F8FAFC);
}

.sol-calc-page__inner {
    max-width: 920px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 3.5rem;
}

.sol-calc-page__crumb {
    font-family: var(--font-primary);
    font-size: 0.8125rem;
    color: var(--color-gray-text, #475569);
    margin: 0 0 1.25rem;
}
.sol-calc-page__crumb a { color: var(--color-blue-accent, #4A90C4); text-decoration: none; }
.sol-calc-page__crumb a:hover { text-decoration: underline; }

.sol-calc-page__eyebrow {
    font-family: var(--font-mono, monospace);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-teal-dark, #0EA5E9);
    margin: 0 0 0.5rem;
}

.sol-calc-page__title {
    font-family: var(--font-heading);
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    line-height: 1.15;
    color: var(--color-navy, #1B2A4A);
    margin: 0 0 0.75rem;
}

.sol-calc-page__lede {
    font-family: var(--font-primary);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--color-gray-text, #475569);
    max-width: 60ch;
    margin: 0 0 2rem;
}

/* ---- Tool shell ---- */
.sol-calc {
    background: var(--color-white, #fff);
    border: 1px solid var(--color-gray-mid, #E2E8F0);
    border-radius: var(--radius-xl, 16px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(27,42,74,0.08));
    overflow: hidden;
}

.sol-calc__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
}

.sol-calc__controls {
    padding: 1.5rem 1.5rem 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sol-calc__field { display: flex; flex-direction: column; gap: 0.6rem; }

.sol-calc__label {
    font-family: var(--font-primary);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-gray-text, #475569);
}

.sol-calc__hint {
    margin: 0;
    font-size: 0.78rem;
    color: var(--color-gray-text, #475569);
    opacity: 0.85;
}

/* size pills + preset pills share a look */
.sol-calc__sizes, .sol-calc__presets { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.sol-calc__size, .sol-calc__preset, .sol-calc__static-size {
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.5rem 0.95rem;
    border-radius: 999px;
    border: 1.5px solid var(--color-gray-mid, #E2E8F0);
    background: var(--color-white, #fff);
    color: var(--color-navy, #1B2A4A);
    cursor: pointer;
    transition: all var(--transition-fast, 150ms ease);
    line-height: 1.2;
}
.sol-calc__static-size { cursor: default; background: var(--color-gray-light, #F5F7FA); }
.sol-calc__size:hover, .sol-calc__preset:hover { border-color: var(--color-teal-dark, #0EA5E9); }
.sol-calc__size.is-active, .sol-calc__preset.is-active {
    background: var(--color-navy, #1B2A4A);
    border-color: var(--color-navy, #1B2A4A);
    color: var(--color-white, #fff);
}

/* water row: slider + number */
.sol-calc__water { display: flex; align-items: center; gap: 1rem; }
.sol-calc__range { flex: 1; accent-color: var(--color-teal-dark, #0EA5E9); height: 4px; }
.sol-calc__water-num {
    display: inline-flex; align-items: baseline; gap: 0.35rem;
    border: 1.5px solid var(--color-gray-mid, #E2E8F0);
    border-radius: var(--radius-md, 8px);
    padding: 0.4rem 0.6rem;
    background: var(--color-gray-lightest, #F8FAFC);
}
.sol-calc__input {
    width: 3.2rem; border: 0; background: transparent;
    font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700;
    color: var(--color-navy, #1B2A4A); text-align: right;
    -moz-appearance: textfield;
}
.sol-calc__input::-webkit-outer-spin-button,
.sol-calc__input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.sol-calc__unit { font-size: 0.85rem; font-weight: 600; color: var(--color-gray-text, #475569); }

/* readout */
.sol-calc__readout {
    display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem;
    background: linear-gradient(135deg, var(--color-navy, #1B2A4A), var(--color-navy-light, #243658));
    border-radius: var(--radius-lg, 12px);
    padding: 1.1rem 1.25rem;
}
.sol-calc__stat { display: flex; flex-direction: column; gap: 0.2rem; }
.sol-calc__stat-val {
    font-family: var(--font-heading); font-size: clamp(1.3rem, 4.5vw, 1.7rem);
    font-weight: 700; color: var(--color-white, #fff); line-height: 1.1;
    transition: color var(--transition-fast, 150ms ease);
}
.sol-calc__stat-key {
    font-size: 0.68rem; letter-spacing: 0.05em; text-transform: uppercase;
    color: rgba(255,255,255,0.7); font-weight: 600;
}

/* visual / syringe */
.sol-calc__visual {
    padding: 1.5rem;
    background: var(--color-gray-lightest, #F8FAFC);
    border-top: 1px solid var(--color-gray-mid, #E2E8F0);
    display: flex; flex-direction: column; gap: 0.75rem; justify-content: center;
}
.sol-calc__syringe { width: 100%; display: flex; justify-content: center; }
.sol-syringe-svg { height: 360px; width: auto; max-width: 100%; display: block; margin: 0 auto; }

.sol-syringe-barrel { fill: var(--color-white, #fff); stroke: var(--color-navy, #1B2A4A); stroke-width: 1.5; }
.sol-syringe-liquid {
    fill: rgb(226, 247, 255);
    fill-opacity: 0.85;
    transition: fill 0.45s ease;
}
@media (prefers-reduced-motion: reduce) {
    .sol-syringe-liquid { transition: none; }
}
.sol-syringe-thumb, .sol-syringe-rod, .sol-syringe-hub { fill: var(--color-navy, #1B2A4A); }
.sol-syringe-needle { stroke: var(--color-gray-text, #475569); stroke-width: 2; stroke-linecap: round; }
.sol-syringe-tick { stroke: var(--color-gray-mid, #cbd5e1); stroke-width: 1; }
.sol-syringe-tick.is-major { stroke: var(--color-navy, #1B2A4A); stroke-width: 1.5; }
.sol-syringe-unit {
    fill: var(--color-gray-text, #475569); font-family: var(--font-mono, monospace);
    font-size: 12px; text-anchor: end;
}
.sol-syringe-mass {
    fill: var(--color-navy, #1B2A4A); font-family: var(--font-primary, sans-serif);
    font-size: 17px; font-weight: 700; text-anchor: start;
}
.sol-syringe-svg.is-pulse .sol-syringe-mass { animation: solCalcMassPulse 0.4s ease; }
@keyframes solCalcMassPulse {
    0%   { opacity: 0.3; }
    100% { opacity: 1; }
}
@media (prefers-reduced-motion: reduce) {
    .sol-syringe-svg.is-pulse .sol-syringe-mass { animation: none; }
}
.sol-syringe-axis {
    fill: var(--color-gray-text, #475569); font-family: var(--font-primary, sans-serif);
    font-size: 7.5px; text-anchor: middle; opacity: 0.8;
}
.sol-calc__syringe-cap {
    margin: 0; font-size: 0.74rem; line-height: 1.45;
    color: var(--color-gray-text, #475569); text-align: center;
}

/* reference table */
.sol-calc__table-wrap { padding: 0 1.5rem 1.75rem; }
.sol-calc__table {
    width: 100%; border-collapse: collapse;
    font-family: var(--font-primary); font-size: 0.85rem;
}
.sol-calc__table-cap {
    caption-side: top; text-align: left;
    font-size: 0.72rem; letter-spacing: 0.05em; text-transform: uppercase;
    font-weight: 600; color: var(--color-gray-text, #475569);
    padding: 0 0 0.6rem;
}
.sol-calc__table th, .sol-calc__table td {
    padding: 0.5rem 0.6rem; text-align: right; border-bottom: 1px solid var(--color-gray-mid, #E2E8F0);
}
.sol-calc__table thead th {
    text-align: right; font-size: 0.7rem; letter-spacing: 0.04em; text-transform: uppercase;
    color: var(--color-gray-text, #475569); border-bottom: 1.5px solid var(--color-navy, #1B2A4A);
}
.sol-calc__table tbody th[scope="row"] { text-align: left; font-weight: 600; color: var(--color-navy, #1B2A4A); }
.sol-calc__table .sol-calc__ml { font-weight: 400; color: var(--color-gray-text, #475569); font-size: 0.78em; }
.sol-calc__table .sol-calc__total { font-weight: 700; color: var(--color-navy, #1B2A4A); }
.sol-calc__table tbody tr:hover td, .sol-calc__table tbody tr:hover th { background: var(--color-gray-lightest, #F8FAFC); }

.sol-calc__empty { padding: 2rem; text-align: center; color: var(--color-gray-text, #475569); }

/* RUO note + product CTA on the calculator page */
.sol-calc-page__ruo {
    margin: 1.5rem 0 0; padding: 0.9rem 1.1rem;
    background: var(--color-gray-light, #F5F7FA);
    border-left: 3px solid var(--color-blue-accent, #4A90C4);
    border-radius: var(--radius-sm, 4px);
    font-size: 0.82rem; line-height: 1.5; color: var(--color-gray-text, #475569);
}
.sol-calc-page__cta-wrap { margin: 2rem 0 0; text-align: center; }
.sol-calc-page__cta {
    display: inline-block; font-family: var(--font-primary); font-weight: 600;
    padding: 0.8rem 1.6rem; border-radius: 999px; text-decoration: none;
    color: var(--color-white, #fff);
    background: linear-gradient(135deg, var(--color-teal, #22D3EE), var(--color-blue-accent, #4A90C4));
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.sol-calc-page__cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }

/* FAQ (reuses native details/summary like /faq/) */
.sol-calc-page__faq { margin: 2.5rem 0 0; }
.sol-calc-page__faq h2 {
    font-family: var(--font-heading); font-size: 1.4rem; color: var(--color-navy, #1B2A4A);
    margin: 0 0 1rem;
}
.sol-calc-page__faq details {
    border: 1px solid var(--color-gray-mid, #E2E8F0); border-radius: var(--radius-md, 8px);
    padding: 0.9rem 1.1rem; margin: 0 0 0.7rem; background: var(--color-white, #fff);
}
.sol-calc-page__faq summary {
    font-family: var(--font-primary); font-weight: 600; color: var(--color-navy, #1B2A4A);
    cursor: pointer; list-style: none;
}
.sol-calc-page__faq summary::-webkit-details-marker { display: none; }
.sol-calc-page__faq details[open] summary { margin-bottom: 0.5rem; }
.sol-calc-page__faq p { margin: 0; font-size: 0.9rem; line-height: 1.6; color: var(--color-gray-text, #475569); }

/* ---- reciprocal link on single product pages ---- */
.sol-product-calc-link {
    display: flex; align-items: center; gap: 0.9rem;
    margin: 1.5rem auto; max-width: 1200px;
    padding: 0.9rem 1.1rem;
    border: 1px solid var(--color-gray-mid, #E2E8F0);
    border-radius: var(--radius-lg, 12px);
    background: var(--color-gray-lightest, #F8FAFC);
}
.sol-product-calc-link__icon { color: var(--color-teal-dark, #0EA5E9); flex-shrink: 0; }
.sol-product-calc-link__text { display: flex; flex-direction: column; gap: 0.1rem; flex: 1; min-width: 0; }
.sol-product-calc-link__text strong { font-family: var(--font-primary); font-size: 0.9rem; color: var(--color-navy, #1B2A4A); }
.sol-product-calc-link__text span { font-size: 0.8rem; color: var(--color-gray-text, #475569); }
.sol-product-calc-link__cta {
    flex-shrink: 0; font-family: var(--font-primary); font-weight: 600; font-size: 0.85rem;
    color: var(--color-blue-accent, #4A90C4); text-decoration: none; white-space: nowrap;
}
.sol-product-calc-link__cta:hover { text-decoration: underline; }

/* prominent product CTA (rendered directly under add-to-cart) */
.sol-product-calc-cta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 1rem 0 0;
    padding: 0.85rem 1rem;
    border: 1.5px solid var(--color-teal-dark, #0EA5E9);
    border-radius: var(--radius-md, 8px);
    background: var(--color-teal-glow, rgba(34, 211, 238, 0.15));
    text-decoration: none;
    transition: background var(--transition-fast, 150ms ease), transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease);
}
.sol-product-calc-cta:hover {
    background: rgba(34, 211, 238, 0.24);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}
.sol-product-calc-cta__icon { color: var(--color-teal-dark, #0EA5E9); flex-shrink: 0; display: flex; }
.sol-product-calc-cta__text { display: flex; flex-direction: column; gap: 0.12rem; flex: 1; min-width: 0; }
.sol-product-calc-cta__text strong { font-family: var(--font-primary); font-size: 0.92rem; font-weight: 700; color: var(--color-navy, #1B2A4A); }
.sol-product-calc-cta__text span { font-size: 0.78rem; line-height: 1.35; color: var(--color-gray-text, #475569); }
.sol-product-calc-cta__arrow { color: var(--color-teal-dark, #0EA5E9); font-weight: 700; font-size: 1.15rem; flex-shrink: 0; }

/* ---- calculators hub (/calculators/) ---- */
.sol-calc-hub__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
    margin: 0 0 2.5rem;
}
.sol-calc-hub__card {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 1.1rem 1.25rem;
    border: 1px solid var(--color-gray-mid, #E2E8F0);
    border-radius: var(--radius-lg, 12px);
    background: var(--color-white, #fff);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast, 150ms ease), box-shadow var(--transition-fast, 150ms ease), border-color var(--transition-fast, 150ms ease);
}
.sol-calc-hub__card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-teal-dark, #0EA5E9);
}
.sol-calc-hub__name {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-navy, #1B2A4A);
}
.sol-calc-hub__cta {
    font-family: var(--font-primary);
    font-size: 0.82rem;
    color: var(--color-blue-accent, #4A90C4);
}

/* ---- desktop layout ---- */
@media (min-width: 760px) {
    .sol-calc__grid { grid-template-columns: 1.05fr 0.95fr; }
    .sol-calc__visual { border-top: 0; border-left: 1px solid var(--color-gray-mid, #E2E8F0); }
}

@media (max-width: 480px) {
    .sol-product-calc-link { flex-wrap: wrap; }
    .sol-product-calc-link__cta { width: 100%; text-align: center; padding-top: 0.4rem; border-top: 1px solid var(--color-gray-mid, #E2E8F0); }
    .sol-calc__table { font-size: 0.78rem; }
    .sol-calc__table th, .sol-calc__table td { padding: 0.45rem 0.4rem; }
}