.showcase-section {
    --showcase-header-offset: 132px;
    --coin-size: min(
        22.5vw,
        390px,
        calc(100svh - var(--showcase-header-offset) - 270px)
    );
    --coin-half-depth: 11px;
    --coin-front-scale: 0.94;
    --coin-back-scale: 0.94;
    --coin-edge-scale: 0.94;
    --coin-rotation-speed: 10s;

    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: calc(100vh - var(--showcase-header-offset));
    min-height: calc(100svh - var(--showcase-header-offset));
    overflow: hidden;
    padding: clamp(50px, 6vh, 76px) 0 clamp(48px, 6vh, 72px);
    background: linear-gradient(to bottom, #f7f5f2 0%, #ffffff 100%);
}

.showcase-section::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(
        circle at 50% 34%,
        rgba(0, 0, 0, 0.05) 0%,
        rgba(0, 0, 0, 0.018) 20%,
        rgba(0, 0, 0, 0) 52%
    );
}

.showcase-head {
    position: relative;
    z-index: 2;
    flex: 0 0 auto;
    margin-bottom: clamp(42px, 5vh, 62px);
    padding: 0 15px;
    text-align: center;
}

.showcase-eyebrow {
    display: block;
    margin-bottom: 8px;
    color: #7b6443;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 2.2px;
    text-transform: uppercase;
}

.showcase-title {
    margin: 0;
    color: #26231f;
    font-family: "Times New Roman", Georgia, serif;
    font-size: 52px;
    font-weight: 400;
    line-height: 1.05;
    margin-bottom: 100px;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.coin-showcase-stage {
    position: relative;
    z-index: 2;
    flex: 0 0 auto;
    width: 100%;
}

.coin-showcase {
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    width: 100%;
    margin: 0;
    padding: 0;
}

.coin-scene {
    flex: 0 0 var(--coin-size);
    width: var(--coin-size);
    height: var(--coin-size);
    perspective: 1100px;
}

.rotating-coin {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    animation: coin-spin var(--coin-rotation-speed) linear infinite;
    will-change: transform;
}

.rotating-coin.starts-from-back {
    animation-name: coin-spin-from-back;
}

.coin-face,
.coin-edge-layer {
    position: absolute;
    inset: 0;
    transform-style: preserve-3d;
}

.coin-face {
    backface-visibility: hidden;
}

.coin-front {
    transform: translateZ(var(--coin-half-depth));
}

.coin-back {
    transform: rotateY(180deg) translateZ(var(--coin-half-depth));
}

.coin-image-fit {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    transform-origin: center;
}

.coin-front .coin-image-fit {
    transform: translate(-50%, -50%) scale(var(--coin-front-scale));
}

.coin-back .coin-image-fit {
    transform: translate(-50%, -50%) scale(var(--coin-back-scale));
}

.coin-image-fit img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    user-select: none;
    pointer-events: none;
    -webkit-user-drag: none;
}

.coin-edge-shape {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    transform: translate(-50%, -50%) scale(var(--coin-edge-scale));
    background: linear-gradient(
        90deg,
        #6d3a00 0%,
        #a65f08 12%,
        #efc45b 24%,
        #c57a12 36%,
        #8a4b00 50%,
        #f4cf73 64%,
        #b96e0e 78%,
        #744000 100%
    );
    box-shadow:
        inset 0 0 0 1px rgba(255, 234, 170, 0.65),
        inset 0 0 8px rgba(80, 38, 0, 0.35);
    backface-visibility: visible;
}

.coin-nav {
    display: none;
}

.coin-scene:hover .rotating-coin {
    animation-play-state: paused;
}

@keyframes coin-spin {
    from {
        transform: rotateX(-6deg) rotateY(0deg);
    }

    to {
        transform: rotateX(-6deg) rotateY(360deg);
    }
}

@keyframes coin-spin-from-back {
    from {
        transform: rotateX(-6deg) rotateY(180deg);
    }

    to {
        transform: rotateX(-6deg) rotateY(540deg);
    }
}

@media (max-width: 991px) {
    .showcase-section {
        --coin-size: min(22vw, 210px);
        --coin-half-depth: 8px;
        --coin-front-scale: 0.86;
        --coin-back-scale: 0.86;
        --coin-edge-scale: 0.86;
        display: block;
        min-height: 0;
        padding: 64px 0 82px;
    }

    .showcase-title {
        font-size: 38px;
    }

    .showcase-head {
        margin-bottom: 26px;
    }

    .coin-showcase {
        display: grid;
        grid-template-columns: repeat(4, var(--coin-size));
        justify-content: space-evenly;
    }
}

@media (max-width: 767px) {
    .showcase-section {
        --coin-size: min(72vw, 320px);
        --coin-half-depth: 5px;
        padding: 50px 0 64px;
    }

    .showcase-eyebrow {
        font-size: 11px;
        letter-spacing: 1.4px;
    }

    .showcase-title {
        font-size: 28px;
    }

    .coin-showcase-stage {
        max-width: 440px;
        margin: 0 auto;
    }

    .coin-showcase {
        display: block;
        padding: 18px 0 8px;
    }

    .coin-scene {
        display: none;
        margin: 0 auto;
    }

    .coin-scene.is-active {
        display: block;
    }

    .coin-nav {
        position: absolute;
        top: 50%;
        z-index: 3;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        padding: 0;
        border: 1px solid rgba(123, 100, 67, 0.35);
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.92);
        color: #7b6443;
        cursor: pointer;
        transform: translateY(-50%);
        box-shadow: 0 5px 18px rgba(38, 35, 31, 0.12);
        -webkit-tap-highlight-color: transparent;
    }

    .coin-nav-icon {
        width: 23px;
        height: 23px;
        fill: none;
        stroke: currentColor;
        stroke-width: 2;
        stroke-linecap: round;
        stroke-linejoin: round;
        pointer-events: none;
    }

    .coin-nav-prev {
        left: 8px;
    }

    .coin-nav-next {
        right: 8px;
    }

    .coin-nav:focus-visible {
        outline: 2px solid #7b6443;
        outline-offset: 3px;
    }

    .coin-nav[hidden] {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .rotating-coin {
        animation: none;
        transform: rotateX(-6deg) rotateY(30deg);
    }

    .rotating-coin.starts-from-back {
        transform: rotateX(-6deg) rotateY(210deg);
    }
}