.formula-finder-page {
    --formula-green: #1f5a43;
    --formula-green-soft: #eaf4ee;
    --formula-orange: #e98617;
    --formula-ink: #1f2d3d;
    --formula-muted: #617086;
    --formula-line: #dce4df;
    --formula-paper: #fbfcfa;
    background: #fff;
    color: var(--formula-ink);
}

.formula-hero {
    padding: 76px 0 68px;
    background: linear-gradient(110deg, #f2f8f4 0%, #fff 58%, #fff5e9 100%);
    border-bottom: 1px solid var(--formula-line);
}

.formula-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(360px, .8fr);
    gap: 64px;
    align-items: center;
}

.formula-hero-copy h1 {
    max-width: 780px;
    margin: 16px 0 20px;
    color: var(--formula-ink);
    font-size: clamp(42px, 5vw, 68px);
    line-height: 1.04;
    letter-spacing: 0;
}

.formula-hero-copy > p {
    max-width: 760px;
    margin: 0;
    color: var(--formula-muted);
    font-size: 18px;
    line-height: 1.75;
}

.formula-hero-actions,
.formula-path-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.formula-hero-board {
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    border: 1px solid #cddbd2;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 24px 55px rgba(28, 57, 44, .12);
}

.formula-hero-board article {
    min-height: 190px;
    padding: 30px;
    background: var(--formula-green);
    color: #fff;
}

.formula-hero-board article + article {
    background: #263b57;
}

.formula-hero-board article span,
.formula-hero-board article small {
    display: block;
    font-weight: 700;
    text-transform: uppercase;
}

.formula-hero-board article span {
    font-size: 13px;
}

.formula-hero-board article strong {
    display: block;
    margin: 26px 0 4px;
    font-family: var(--font-heading);
    font-size: 42px;
    line-height: 1;
}

.formula-hero-board article small {
    color: rgba(255,255,255,.75);
    font-size: 11px;
}

.formula-hero-board-note {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 30px;
    color: var(--formula-ink);
}

.formula-hero-board-note span {
    color: var(--formula-muted);
    font-size: 13px;
}

.formula-builder-section {
    background: #fff;
}

.formula-builder-layout {
    display: grid;
    grid-template-columns: minmax(330px, 410px) minmax(0, 1fr);
    gap: 34px;
    align-items: start;
}

.formula-filter-panel,
.formula-results-panel {
    border: 1px solid var(--formula-line);
    border-radius: 8px;
    background: var(--formula-paper);
}

.formula-filter-panel {
    position: sticky;
    top: 96px;
    padding: 26px;
}

.formula-panel-heading {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--formula-line);
}

.formula-panel-heading > span {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border-radius: 50%;
    background: var(--formula-green);
    color: #fff;
    font-weight: 800;
}

.formula-panel-heading h2 {
    margin: 0;
    font-size: 23px;
}

.formula-filter-panel fieldset {
    margin: 24px 0 0;
    padding: 0;
    border: 0;
}

.formula-filter-panel legend,
.formula-field > span {
    display: block;
    margin-bottom: 9px;
    color: var(--formula-ink);
    font-size: 13px;
    font-weight: 800;
}

.formula-segment {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.formula-segment-stack {
    grid-template-columns: 1fr;
}

.formula-segment label {
    position: relative;
    min-width: 0;
}

.formula-segment input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.formula-segment span {
    display: flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    padding: 9px 12px;
    border: 1px solid #cfd9d3;
    border-radius: 6px;
    background: #fff;
    color: var(--formula-ink);
    font-size: 13px;
    font-weight: 700;
    text-align: center;
    cursor: pointer;
}

.formula-segment input:checked + span {
    border-color: var(--formula-green);
    background: var(--formula-green-soft);
    color: var(--formula-green);
    box-shadow: inset 0 0 0 1px var(--formula-green);
}

.formula-segment input:focus-visible + span {
    outline: 3px solid rgba(233, 134, 23, .3);
    outline-offset: 2px;
}

.formula-field-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 12px;
    margin-top: 24px;
}

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

.formula-field select,
.formula-field input {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid #cfd9d3;
    border-radius: 6px;
    background: #fff;
    color: var(--formula-ink);
    font: inherit;
    font-size: 14px;
}

.formula-field select:focus,
.formula-field input:focus {
    border-color: var(--formula-green);
    outline: 3px solid rgba(31, 90, 67, .12);
}

.formula-match-button {
    width: 100%;
    margin-top: 22px;
    justify-content: center;
}

.formula-results-panel {
    min-height: 680px;
    padding: 34px;
    background: #fff;
}

.formula-results-heading {
    max-width: 760px;
    margin-bottom: 26px;
}

.formula-results-heading h2 {
    margin: 9px 0 10px;
    font-size: 34px;
}

.formula-results-heading p {
    margin: 0;
    color: var(--formula-muted);
    line-height: 1.65;
}

.formula-results {
    display: grid;
    gap: 15px;
}

.formula-result-card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 24px;
    padding: 22px;
    border: 1px solid var(--formula-line);
    border-left: 4px solid var(--formula-green);
    border-radius: 6px;
    background: var(--formula-paper);
}

.formula-result-card h3 {
    margin: 8px 0 7px;
    font-size: 21px;
    line-height: 1.28;
}

.formula-result-card p {
    margin: 0;
    color: var(--formula-muted);
    font-size: 14px;
    line-height: 1.55;
}

.formula-result-meta,
.formula-card-topline,
.formula-tag-row {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.formula-result-meta span,
.formula-card-topline span,
.formula-tag-row span {
    display: inline-flex;
    align-items: center;
    min-height: 27px;
    padding: 4px 8px;
    border: 1px solid #d5dfd9;
    border-radius: 4px;
    background: #fff;
    color: var(--formula-green);
    font-size: 11px;
    font-weight: 800;
}

.formula-result-actions {
    display: flex;
    width: 170px;
    flex-direction: column;
    justify-content: center;
    gap: 9px;
}

.formula-result-actions .btn {
    width: 100%;
    min-height: 42px;
    justify-content: center;
    padding: 9px 12px;
    font-size: 12px;
}

.formula-reference-note {
    margin: 22px 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--formula-line);
    color: var(--formula-muted);
    font-size: 12px;
    line-height: 1.55;
}

.formula-library-section {
    background: #f4f7f5;
    border-top: 1px solid var(--formula-line);
    border-bottom: 1px solid var(--formula-line);
}

.formula-library-heading {
    max-width: 820px;
}

.formula-library-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.formula-library-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: 22px;
    border: 1px solid var(--formula-line);
    border-radius: 8px;
    background: #fff;
}

.formula-library-card[data-species="cat"] {
    border-top: 3px solid #314b70;
}

.formula-library-card[data-species="dog"] {
    border-top: 3px solid var(--formula-green);
}

.formula-library-card h3 {
    margin: 16px 0 9px;
    font-size: 20px;
    line-height: 1.35;
}

.formula-library-card > p {
    min-height: 68px;
    margin: 0;
    color: var(--formula-muted);
    font-size: 14px;
    line-height: 1.6;
}

.formula-nutrition-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 20px 0 14px;
}

.formula-nutrition-row span {
    padding: 11px;
    border-radius: 6px;
    background: #f2f6f3;
    color: var(--formula-muted);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
}

.formula-nutrition-row strong {
    display: block;
    margin-bottom: 3px;
    color: var(--formula-ink);
    font-size: 22px;
    line-height: 1;
}

.formula-library-card details {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px solid var(--formula-line);
}

.formula-library-card summary {
    color: var(--formula-green);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
}

.formula-library-card details p {
    margin: 10px 0 0;
    color: var(--formula-muted);
    font-size: 13px;
    line-height: 1.6;
}

.formula-path-section {
    background: #fff;
}

.formula-path-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(340px, .9fr);
    gap: 54px;
    align-items: center;
}

.formula-path-grid h2 {
    max-width: 760px;
    margin: 12px 0 16px;
    font-size: 38px;
}

.formula-path-grid > div > p {
    max-width: 760px;
    color: var(--formula-muted);
    font-size: 16px;
    line-height: 1.7;
}

.formula-review-list {
    padding: 26px;
    border: 1px solid #efd6b5;
    border-radius: 8px;
    background: #fff8ef;
}

.formula-review-list h3 {
    margin: 0 0 16px;
    font-size: 20px;
}

.formula-review-list ul {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 18px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.formula-review-list li {
    display: flex;
    gap: 8px;
    color: var(--formula-ink);
    font-size: 13px;
    line-height: 1.45;
}

.formula-review-list li span {
    color: var(--formula-orange);
    font-weight: 900;
}

.formula-faq-section {
    background: #f7f8fb;
}

.formula-faq-wrap > h2 {
    margin: 0 0 26px;
    font-size: 34px;
}

.formula-faq-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.formula-faq-grid article {
    padding: 22px;
    border-left: 3px solid var(--formula-orange);
    background: #fff;
}

.formula-faq-grid h3 {
    margin: 0 0 10px;
    font-size: 18px;
    line-height: 1.4;
}

.formula-faq-grid p {
    margin: 0;
    color: var(--formula-muted);
    font-size: 14px;
    line-height: 1.65;
}

@media (max-width: 1050px) {
    .formula-hero-grid,
    .formula-builder-layout,
    .formula-path-grid {
        grid-template-columns: 1fr;
    }

    .formula-hero-board {
        max-width: 620px;
    }

    .formula-filter-panel {
        position: static;
    }

    .formula-library-grid,
    .formula-faq-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    .formula-hero {
        padding: 48px 0 44px;
    }

    .formula-hero-grid {
        gap: 34px;
    }

    .formula-hero-copy h1 {
        font-size: 42px;
    }

    .formula-hero-copy > p {
        font-size: 16px;
    }

    .formula-hero-actions,
    .formula-path-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .formula-hero-actions .btn,
    .formula-path-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .formula-hero-board article {
        min-height: 150px;
        padding: 22px 18px;
    }

    .formula-hero-board article strong {
        margin-top: 20px;
        font-size: 31px;
    }

    .formula-hero-board-note {
        align-items: flex-start;
        flex-direction: column;
        padding: 18px;
    }

    .formula-field-grid,
    .formula-library-grid,
    .formula-faq-grid,
    .formula-review-list ul {
        grid-template-columns: 1fr;
    }

    .formula-field-wide {
        grid-column: auto;
    }

    .formula-filter-panel,
    .formula-results-panel {
        padding: 20px;
    }

    .formula-results-panel {
        min-height: 0;
    }

    .formula-results-heading h2,
    .formula-path-grid h2,
    .formula-faq-wrap > h2 {
        font-size: 29px;
    }

    .formula-result-card {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .formula-result-actions {
        width: 100%;
        flex-direction: row;
    }

    .formula-result-actions .btn {
        min-width: 0;
    }

    .formula-library-card > p {
        min-height: 0;
    }
}

@media (max-width: 430px) {
    .formula-hero-copy h1 {
        font-size: 36px;
    }

    .formula-result-actions {
        flex-direction: column;
    }
}