/* ==========================================================================
   Linha de válvulas (home) — índice tipográfico + palco
   Mobile-first: cada família é um card com foto. A partir de 1024px vira um
   índice (linha ativa sólida, demais apagadas) com o palco da foto ao lado.
   ========================================================================== */

.valves {
    position: relative;
    /* Folha clara sobre o fundo escuro da página, como uma página nova. */
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* --- Cabeçalho ---------------------------------------------------------------- */
.valves__head {
    display: grid;
    gap: var(--space-5);
    margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}

.valves__heading {
    display: grid;
    gap: var(--space-5);
}

.valves__head .display-title__line:nth-child(1) { --reveal-delay: 80ms; }
.valves__head .display-title__line:nth-child(2) { --reveal-delay: 160ms; }

.valves__lead {
    max-width: 30rem;
    font-size: var(--fs-md);
    line-height: var(--lh-base);
    color: var(--ink-2);
    --reveal-delay: 240ms;
}

/* --- Lista (cards no celular) ------------------------------------------------- */
.valves__list {
    display: grid;
    gap: var(--space-3);
    list-style: none;
}

.valves__item:nth-child(2) { --reveal-delay: 70ms; }
.valves__item:nth-child(3) { --reveal-delay: 140ms; }
.valves__item:nth-child(4) { --reveal-delay: 210ms; }
.valves__item:nth-child(5) { --reveal-delay: 280ms; }
.valves__item:nth-child(6) { --reveal-delay: 350ms; }

.valve-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 40%;
    grid-template-rows: auto auto 1fr auto;
    grid-template-areas:
        "meta    media"
        "name    media"
        "summary media"
        "models  media";
    column-gap: var(--space-4);
    min-height: 176px;
    padding: var(--space-4) 0 var(--space-4) var(--space-5);
    overflow: hidden;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    box-shadow:
        0 1px 2px rgba(var(--co-ink-rgb), 0.04),
        0 18px 40px -28px rgba(var(--co-ink-rgb), 0.35);
    transition:
        transform var(--dur-base) var(--ease-out-expo),
        border-color var(--dur-base) var(--ease-apple),
        box-shadow var(--dur-base) var(--ease-apple);
}

.valve-row:active {
    transform: scale(0.985);
}

.valve-row__meta {
    grid-area: meta;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-family: var(--font-mono);
    font-size: var(--fs-2xs);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
}

.valve-row__index {
    color: var(--co-accent-text);
}

.valve-row__fn {
    color: var(--ink-3);
}

.valve-row__fn::before {
    content: "·";
    margin-right: var(--space-2);
    color: var(--ink-3);
}

.valve-row__name {
    grid-area: name;
    margin-top: var(--space-2);
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 1.2rem + 1.4vw, 2.25rem);
    font-weight: 800;
    letter-spacing: var(--tracking-tight);
    line-height: 1;
    text-transform: uppercase;
    transition: color var(--dur-slow) var(--ease-apple);
}

.valve-row__summary {
    grid-area: summary;
    margin-top: var(--space-2);
    font-size: var(--fs-sm);
    line-height: 1.45;
    color: var(--ink-2);
}

.valve-row__models {
    grid-area: models;
    margin-top: var(--space-3);
    font-family: var(--font-mono);
    font-size: var(--fs-2xs);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    color: var(--ink-3);
}

/* A foto ocupa toda a altura do card, encostada na borda direita. */
.valve-row__media {
    grid-area: media;
    margin-block: calc(-1 * var(--space-4));
    background: var(--photo-bg);
}

.valve-row__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Seta sobre a foto: o card inteiro é o link, a seta só sinaliza. */
.valve-row__arrow {
    grid-area: media;
    z-index: 1;
    align-self: end;
    justify-self: end;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    margin-right: var(--space-3);
    font-size: 1rem;
    color: #fff;
    background: var(--co);
    border-radius: 50%;
    box-shadow: 0 6px 16px rgba(var(--co-deep-rgb), 0.3);
    transition:
        transform var(--dur-slow) var(--ease-out-expo),
        opacity var(--dur-base) var(--ease-apple),
        background-color var(--dur-base) var(--ease-apple);
}

@media (hover: hover) {
    .valve-row:hover {
        border-color: var(--hairline-strong);
        box-shadow:
            0 1px 2px rgba(var(--co-ink-rgb), 0.04),
            0 24px 48px -26px rgba(var(--co-ink-rgb), 0.45);
    }

    .valve-row:hover .valve-row__arrow {
        transform: rotate(45deg);
    }
}

/* O palco só existe no desktop. */
.valves__stage {
    display: none;
}

/* --- Tablet ---------------------------------------------------------------------- */
@media (min-width: 768px) {
    .valves {
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }

    .valves__head {
        grid-template-columns: minmax(0, 1fr) minmax(0, 24rem);
        align-items: end;
        column-gap: var(--space-12);
    }

    .valve-row {
        grid-template-columns: minmax(0, 1fr) 34%;
        min-height: 220px;
        padding: var(--space-6) 0 var(--space-6) var(--space-8);
    }

    .valve-row__media {
        margin-block: calc(-1 * var(--space-6));
    }

    .valve-row__summary {
        max-width: 26rem;
        font-size: var(--fs-md);
    }
}

/* --- Desktop: índice + palco ------------------------------------------------------- */
@media (min-width: 1024px) {
    .valves__body {
        display: grid;
        grid-template-columns: minmax(0, 1fr) min(36vw, 460px);
        align-items: center;
        gap: clamp(var(--space-12), 6vw, 7rem);
    }

    .valves__list {
        gap: 0;
        border-top: 1px solid var(--hairline);
    }

    .valves__item {
        border-bottom: 1px solid var(--hairline);
    }

    .valve-row {
        grid-template-columns: 3.25rem minmax(0, 1fr) auto 3rem;
        grid-template-rows: auto auto;
        grid-template-areas: none;
        column-gap: var(--space-5);
        align-items: center;
        min-height: 0;
        padding: clamp(var(--space-4), 1.6vw, var(--space-6)) 0;
        overflow: visible;
        background: none;
        border: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .valve-row:active {
        transform: none;
    }

    .valve-row__meta {
        display: contents;
    }

    .valve-row__index {
        grid-column: 1;
        grid-row: 1 / span 2;
        font-family: var(--font-mono);
        font-size: var(--fs-xs);
    }

    .valve-row__name {
        grid-column: 2;
        grid-row: 1 / span 2;
        margin: 0;
        font-size: clamp(2.25rem, 0.6rem + 3vw, 3.75rem);
        color: var(--ink-ghost);
    }

    .valve-row__fn {
        grid-column: 3;
        grid-row: 1;
        align-self: end;
        justify-self: end;
        font-family: var(--font-text);
        font-size: var(--fs-sm);
        font-weight: 600;
        letter-spacing: var(--tracking-snug);
        text-transform: none;
        color: var(--ink-2);
    }

    .valve-row__fn::before {
        content: none;
    }

    .valve-row__models {
        grid-column: 3;
        grid-row: 2;
        align-self: start;
        justify-self: end;
        margin-top: var(--space-1);
    }

    /* No índice o resumo vai para o palco (continua como descrição acessível do link). */
    .valve-row__summary,
    .valve-row__media {
        display: none;
    }

    .valve-row__arrow {
        grid-column: 4;
        grid-row: 1 / span 2;
        align-self: center;
        margin: 0;
        opacity: 0;
        transform: scale(0.6) rotate(-45deg);
    }

    .valve-row.is-active .valve-row__name {
        color: var(--ink);
    }

    .valve-row.is-active .valve-row__arrow {
        opacity: 1;
        transform: none;
    }

    @media (hover: hover) {
        .valve-row:hover {
            box-shadow: none;
        }

        .valve-row.is-active:hover .valve-row__arrow {
            background: var(--co-accent-text);
            transform: rotate(45deg);
        }
    }

    /* --- Palco --- */
    .valves__stage {
        position: relative;
        display: grid;
        aspect-ratio: 4 / 5;
        overflow: hidden;
        background: var(--photo-bg);
        border-radius: var(--radius-xl);
        box-shadow:
            0 2px 4px rgba(var(--co-ink-rgb), 0.06),
            0 40px 80px -40px rgba(var(--co-ink-rgb), 0.45);
        isolation: isolate;
    }

    .valves__shot {
        position: relative;
        grid-area: 1 / 1;
        display: block;
        opacity: 0;
        visibility: hidden;
        transform: scale(1.04);
        transition:
            opacity 700ms var(--ease-out-expo),
            transform 1200ms var(--ease-out-expo),
            visibility 0s linear 700ms;
    }

    .valves__shot.is-active {
        z-index: 1;
        opacity: 1;
        visibility: visible;
        transform: none;
        transition-delay: 0s;
    }

    .valves__shot img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .valves__code {
        position: absolute;
        top: var(--space-5);
        left: var(--space-5);
        display: inline-flex;
        gap: var(--space-3);
        padding: 0.4rem 0.8rem;
        font-family: var(--font-mono);
        font-size: var(--fs-2xs);
        font-weight: 500;
        letter-spacing: var(--tracking-wider);
        color: var(--ink);
        background: rgba(255, 255, 255, 0.62);
        border: 1px solid rgba(255, 255, 255, 0.7);
        border-radius: var(--radius-pill);
        -webkit-backdrop-filter: blur(12px);
        backdrop-filter: blur(12px);
    }

    .valves__code span {
        color: var(--ink-3);
    }

    /* Painel de vidro escuro, o mesmo tom do header rolado: legível sobre a foto clara. */
    .valves__panel {
        position: absolute;
        right: var(--space-4);
        bottom: var(--space-4);
        left: var(--space-4);
        display: grid;
        gap: var(--space-3);
        padding: var(--space-4) var(--space-5);
        color: var(--text);
        background: rgba(var(--co-deep-rgb), 0.8);
        border: 1px solid var(--glass-border);
        border-radius: var(--radius-lg);
        -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(140%);
        backdrop-filter: blur(var(--glass-blur)) saturate(140%);
        box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
        opacity: 0;
        transform: translate3d(0, 14px, 0);
        transition:
            opacity var(--dur-slow) var(--ease-out-expo),
            transform var(--dur-slow) var(--ease-out-expo);
    }

    .valves__shot.is-active .valves__panel {
        opacity: 1;
        transform: none;
        transition-delay: 120ms;
    }

    .valves__panel-text {
        font-size: var(--fs-sm);
        line-height: 1.45;
        color: var(--text-2);
    }

    .valves__panel-cta {
        display: inline-flex;
        align-items: center;
        gap: var(--space-2);
        font-size: var(--fs-xs);
        font-weight: 600;
        letter-spacing: var(--tracking-wide);
        text-transform: uppercase;
        color: var(--co-accent-2);
    }

    @media (hover: hover) {
        .valves__shot img {
            transition: transform 1200ms var(--ease-out-expo);
        }

        .valves__shot:hover img {
            transform: scale(1.03);
        }
    }
}