/* Homepage only: retain the PURE TECH artwork over softly lit, quiet water.
   Each piece keeps its original swing and bob from puretech-mark.css. */
.pth {
    --pth-mark: clamp(420px, min(54vw, 64svh), 680px);
    position: relative;
    isolation: isolate;
    display: block;
    min-height: clamp(860px, 100svh, 1060px);
    padding-bottom: 112px;
    overflow: hidden;
    background: #f8fafb;
    color: #152c3c;
    font-family: "Google Sans Flex", sans-serif;
    text-decoration: none;
}

.pth *,
.pth *::before,
.pth *::after {
    box-sizing: border-box;
}

.pth span,
.pth b,
.pth strong,
.pth small {
    display: block;
}

.pth .pt-name,
.pth .pt-name b,
.pth .pt-name i {
    display: inline;
}

.pth-water-scene {
    position: absolute;
    inset: 38% 0 0;
    z-index: -1;
    display: block;
    pointer-events: none;
    -webkit-mask-image: linear-gradient(to bottom, transparent, #000 46%);
    mask-image: linear-gradient(to bottom, transparent, #000 46%);
}

.pth .pth-water {
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    /* Anchor the film's waterline below the core across wide and tall crops. */
    object-position: 50% 58%;
}

.pth-copy {
    position: relative;
    z-index: 2;
    padding: clamp(48px, 7vh, 80px) 24px 0;
    text-align: center;
}

.pth-small {
    color: #456171;
    font-size: clamp(15px, 1.3vw, 19px);
    font-weight: 600;
    letter-spacing: -0.025em;
}

.pth-title {
    margin-top: 8px;
    font-size: clamp(28px, 4vw, 62px);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.1;
    text-wrap: balance;
}

.pth .pth-items {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 32px;
    max-width: 960px;
    margin: 30px auto 30px;
}

.pth-items > span {
    text-align: center;
}

.pth-items strong {
    margin-top: 4px;
    font-size: clamp(22px, 2vw, 30px);
    font-weight: 600;
    letter-spacing: -0.035em;
    line-height: 1.15;
}

.pth-items small {
    margin-top: 9px;
    color: #456171;
    font-size: clamp(14px, 1.1vw, 16px);
    font-weight: 400;
    line-height: 1.4;
    text-wrap: balance;
}

.pth-stage {
    position: relative;
    z-index: 1;
    margin-top: 32px;
}

/* Match the artwork's optical centre, not the transparent canvas centre. */
.pth .pth-mark {
    position: relative;
    left: 50%;
    width: var(--pth-mark);
    translate: -59.65% 0;
    filter: saturate(0.72) contrast(0.95);
}

/* A soft cast shadow ties the symbol to the water without another reflection. */
.pth-stage::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -18px;
    width: calc(var(--pth-mark) * 0.38);
    height: 26px;
    transform: translateX(-50%);
    border-radius: 50%;
    background: radial-gradient(ellipse, rgb(40 76 92 / 0.14), transparent 70%);
    filter: blur(7px);
    pointer-events: none;
}

.pth:focus-visible {
    outline: 3px solid #11527e;
    outline-offset: -6px;
}

@media (max-width: 1099.98px) {
    .pth {
        --pth-mark: clamp(400px, min(56vw, 58svh), 580px);
        min-height: 820px;
    }
}

@media (max-width: 759.98px) {
    .pth {
        --pth-mark: min(100vw, 580px);
        min-height: 0;
        padding-bottom: 100px;
    }

    .pth-copy {
        padding: 44px 14px 0;
    }

    .pth .pth-items {
        gap: 10px;
        margin-top: 28px;
        margin-bottom: 28px;
    }

    .pth-items strong {
        font-size: clamp(17px, 4.6vw, 26px);
    }

    .pth-items small {
        font-size: clamp(12px, 3.1vw, 14px);
        line-height: 1.45;
    }

    .pth-stage {
        margin-top: 28px;
    }

}