:root {
    --roller-rail-width: clamp(16rem, 25vw, 29rem);
    --roller-gap: 0;
    --harmonica-phase-duration: 1.3s;
    --harmonica-phase-easing: cubic-bezier(.42, 0, .58, 1);
}

.language-selector {
    position: fixed;
    z-index: 60;
}

.harmonica-panel {
    transition: opacity var(--harmonica-phase-duration) var(--harmonica-phase-easing), transform var(--harmonica-phase-duration) var(--harmonica-phase-easing), clip-path var(--harmonica-phase-duration) var(--harmonica-phase-easing);
}

.harmonica-panel[hidden] {
    display: none;
}

.harmonica-panel.is-leaving {
    opacity: 0;
    transform: translateX(-3%);
}

.harmonica-panel.is-entering {
    animation: panel-expand var(--harmonica-phase-duration) var(--harmonica-phase-easing) both;
}

.board-stage .hero-copy,
.board-stage .board-shade {
    transition: opacity var(--harmonica-phase-duration) var(--harmonica-phase-easing), visibility 0s linear;
}

.board-stage.is-background-only .hero-copy,
.board-stage.is-background-only .board-shade {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--harmonica-phase-duration) var(--harmonica-phase-easing), visibility 0s linear var(--harmonica-phase-duration);
}

@keyframes panel-expand {
    from { opacity: 0; clip-path: inset(0 0 0 96%); transform: translateX(3%); }
    to { opacity: 1; clip-path: inset(0); transform: translateX(0); }
}

.content-panel {
    position: fixed;
    z-index: 8;
    inset: 0;
    display: grid;
    align-items: center;
    overflow: hidden;
    padding: clamp(5rem, 9vw, 9rem) calc(var(--roller-rail-width) + clamp(2rem, 5vw, 6rem)) clamp(3rem, 6vw, 6rem) clamp(2rem, 8vw, 9rem);
    background:
        radial-gradient(circle at 72% 28%, rgba(138, 201, 255, .13), transparent 28%),
        linear-gradient(125deg, #0b0e0c 0%, #121814 56%, #07100d 100%);
}

.content-panel::before {
    position: absolute;
    inset: 0;
    content: "";
    opacity: .2;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(183, 227, 107, .12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(183, 227, 107, .12) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: linear-gradient(90deg, transparent, #000 45%, #000);
}

.downloads-panel {
    --section-glow: rgba(138, 201, 255, .18);
    align-items: stretch;
    background: linear-gradient(90deg, rgba(5, 9, 7, .92) 0%, rgba(5, 9, 7, .74) 42%, rgba(5, 9, 7, .15) 72%, transparent);
}
.downloads-panel::before { display: none; }
.services-panel { --section-glow: rgba(183, 227, 107, .16); }
.products-panel { --section-glow: rgba(119, 103, 255, .16); }

.kinetra-download {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(17rem, .9fr) minmax(24rem, 1.35fr);
    grid-template-rows: auto 1fr auto;
    column-gap: clamp(2rem, 5vw, 6rem);
    width: min(100%, 77rem);
    margin-block: auto;
}
.kinetra-heading { align-self: end; }
.kinetra-identity { display: flex; align-items: center; gap: clamp(1rem, 2vw, 1.6rem); margin-top: 1rem; }
.kinetra-identity img { width: clamp(4.6rem, 7vw, 6.8rem); aspect-ratio: 1; border-radius: 24%; box-shadow: 0 1rem 2.8rem rgba(0,0,0,.5); }
.kinetra-identity h2 { margin: 0; color: #f1f4ec; font-size: clamp(3.4rem, 6vw, 6.8rem); font-weight: 540; letter-spacing: -.07em; line-height: .82; }
.kinetra-tagline { max-width: 23rem; margin: .8rem 0 0; color: rgba(241,244,236,.82); font-size: clamp(1rem, 1.35vw, 1.2rem); line-height: 1.45; }
.kinetra-features { grid-column: 2; grid-row: 1 / span 2; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .75rem; align-content: center; }
.kinetra-features article { min-height: 9.8rem; padding: 1.15rem 1.2rem; border: 1px solid rgba(183,227,107,.18); background: rgba(7,12,9,.58); backdrop-filter: blur(10px); }
.kinetra-features article > span { color: var(--bio-lime); font: 700 .68rem/1 ui-monospace,monospace; letter-spacing: .15em; }
.kinetra-features h3 { margin: .9rem 0 .45rem; color: #f1f4ec; font-size: clamp(1rem,1.35vw,1.25rem); line-height: 1.12; }
.kinetra-features p { margin: 0; color: rgba(241,244,236,.63); font-size: .9rem; line-height: 1.45; }
.kinetra-get { display: flex; align-items: end; gap: 1.3rem; margin-top: clamp(1.5rem,3vh,2.6rem); }
.kinetra-actions { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: .65rem; flex: 1; }
.download-action { display: inline-flex; min-height: 3.2rem; align-items: center; justify-content: center; padding: .8rem 1rem; border: 1px solid rgba(183,227,107,.4); color: #eaf5d9; font-size: .82rem; font-weight: 750; letter-spacing: .055em; text-align: center; text-decoration: none; text-transform: uppercase; background: rgba(8,15,10,.72); }
.download-action.play-action { color: #10150f; background: var(--bio-lime); }
.download-action.play-action:hover,.download-action.play-action:focus-visible { background: #d1f58e; }
.download-action.is-preparing { cursor: not-allowed; opacity: .48; }
.kinetra-actions small { grid-column: 1/-1; color: rgba(241,244,236,.5); font-size: .72rem; line-height: 1.35; }
.kinetra-qr { display: grid; flex: 0 0 6.2rem; gap: .35rem; color: rgba(241,244,236,.62); font-size: .58rem; letter-spacing: .07em; text-align: center; text-decoration: none; text-transform: uppercase; }
.kinetra-qr img { display: block; width: 100%; aspect-ratio: 1; border: .28rem solid #f1f4ec; background: #f1f4ec; }

.section-copy {
    position: relative;
    z-index: 1;
    max-width: 52rem;
}

.section-kicker {
    color: var(--bio-lime);
    font-size: .74rem;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
}

.section-copy h2 {
    margin: 1rem 0;
    color: #f1f4ec;
    font-size: clamp(3.4rem, 7.5vw, 8rem);
    font-weight: 520;
    letter-spacing: -.065em;
    line-height: .9;
}

.section-copy p {
    max-width: 38rem;
    color: rgba(241, 244, 236, .68);
    font-size: clamp(1rem, 1.5vw, 1.2rem);
}

.capacitor-menu {
    position: fixed;
    z-index: 50;
    top: 0;
    right: 0;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--roller-gap);
    width: var(--roller-rail-width);
    height: 100%;
    padding: .35rem .12rem .35rem 0;
    perspective: 1100px;
    background:
        linear-gradient(90deg, transparent, rgba(3, 8, 6, .5) 10%, rgba(3, 8, 6, .88)),
        repeating-linear-gradient(0deg, transparent 0 34px, rgba(183, 227, 107, .1) 35px, transparent 36px);
    pointer-events: none;
}

.capacitor-button {
    --turn: 0deg;
    position: relative;
    min-width: 0;
    height: 100%;
    padding: clamp(3.8rem, 7vh, 6rem) .3rem;
    overflow: visible;
    border: 0;
    color: rgba(241, 244, 236, .7);
    background: transparent;
    cursor: pointer;
    pointer-events: auto;
    transform-style: preserve-3d;
    transition: transform .36s cubic-bezier(.2, .8, .2, 1), filter .3s ease;
}

.capacitor-button::before,
.capacitor-button::after {
    position: absolute;
    z-index: 3;
    left: 7%;
    width: 86%;
    height: clamp(1.2rem, 3.4vh, 2.2rem);
    content: "";
    border: 1px solid rgba(255, 255, 255, .24);
    background: linear-gradient(90deg, #49504d, #d1d4cf 22%, #686e6a 52%, #e1e3df 74%, #3c423f);
    box-shadow: 0 .2rem .6rem rgba(0, 0, 0, .55);
}

.capacitor-button::before { top: 2.5%; border-radius: 45% 45% 20% 20%; }
.capacitor-button::after { bottom: 2.5%; border-radius: 20% 20% 45% 45%; }

.capacitor-body {
    position: absolute;
    inset: 4.5% 8%;
    display: grid;
    place-items: center;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 46% / 3%;
    background:
        linear-gradient(90deg, #050706 0%, #1d2421 14%, #090c0a 38%, #303833 54%, #080b09 76%, #171d1a 91%, #030504),
        repeating-linear-gradient(0deg, transparent 0 27px, rgba(138, 201, 255, .1) 28px, transparent 29px);
    box-shadow:
        inset 1rem 0 1.4rem rgba(255, 255, 255, .055),
        inset -1.2rem 0 1.8rem rgba(0, 0, 0, .8),
        0 1.1rem 2rem rgba(0, 0, 0, .52);
    transform: rotateY(var(--turn));
    transition: transform .45s cubic-bezier(.2, .8, .2, 1), box-shadow .35s ease;
}

.capacitor-body::before,
.capacitor-body::after {
    position: absolute;
    left: 0;
    width: 100%;
    height: .42rem;
    content: "";
    background: linear-gradient(90deg, #4f6530, var(--bio-lime), #607936);
    box-shadow: 0 0 .75rem rgba(183, 227, 107, .28);
    opacity: .56;
}

.capacitor-body::before { top: 1.5rem; }
.capacitor-body::after { bottom: 1.5rem; }

.capacitor-label {
    position: relative;
    z-index: 2;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: inherit;
    font-size: clamp(.68rem, 1.15vw, 1.12rem);
    font-weight: 520;
    letter-spacing: .13em;
    text-transform: uppercase;
    text-shadow: 0 1px 5px #000;
}

.capacitor-terminal {
    position: absolute;
    z-index: 5;
    left: 50%;
    width: 14%;
    height: 4.2%;
    border: 1px solid #777e79;
    background: linear-gradient(90deg, #333a36, #d2d5d1 45%, #565d59);
    transform: translateX(-50%);
}

.capacitor-terminal.top { top: 0; }
.capacitor-terminal.bottom { bottom: 0; }

.capacitor-button:hover,
.capacitor-button:focus-visible {
    --turn: -12deg;
    color: #f4f8ee;
    filter: brightness(1.13);
    transform: translateX(-.38rem) rotateY(-4deg);
    outline: none;
}

.capacitor-button:hover .capacitor-body,
.capacitor-button:focus-visible .capacitor-body {
    box-shadow:
        inset 1rem 0 1.4rem rgba(255, 255, 255, .08),
        inset -1.2rem 0 1.8rem rgba(0, 0, 0, .8),
        0 0 1.5rem rgba(183, 227, 107, .22),
        0 1.1rem 2rem rgba(0, 0, 0, .6);
}

.capacitor-button.is-unplugging {
    pointer-events: none;
    animation: capacitor-unplug .52s cubic-bezier(.24, .76, .25, 1) both;
}

@keyframes capacitor-unplug {
    0% { transform: translateX(0) rotateY(0); }
    35% { transform: translateX(-.65rem) rotateY(-9deg); }
    72% { transform: translateX(-2.4rem) rotateY(-18deg) scale(.985); }
    100% { transform: translateX(-3.1rem) rotateY(-25deg) scale(.96); opacity: 0; }
}

@media (max-width: 700px) {
    :root { --roller-rail-width: clamp(5.9rem, 24vw, 7.4rem); --roller-gap: 0; }
    .capacitor-menu {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, minmax(0, 1fr));
        padding: .2rem 0 .2rem .08rem;
        background: linear-gradient(90deg, rgba(3, 8, 6, .38), rgba(3, 8, 6, .94) 24%);
    }
    .capacitor-button { width: 100%; height: 100%; padding: 1.4rem .2rem; }
    .capacitor-rail { width: 66%; transform: translateX(-38%); }
    .capacitor-button::before,
    .capacitor-button::after { left: 11%; width: 78%; height: .8rem; }
    .capacitor-body { inset: 5% 13%; border-radius: 44% / 6%; }
    .capacitor-body::before { top: .72rem; }
    .capacitor-body::after { bottom: .72rem; }
    .capacitor-label { font-size: clamp(.56rem, 2.35vw, .74rem); letter-spacing: .09em; }
    .capacitor-terminal { width: 12%; height: 5%; }
    .hero-copy { width: calc(100% - var(--roller-rail-width)); padding-right: .5rem; }
    .hero-copy::before { width: 100%; }
    .copy-panel { width: 100%; }
    .content-panel {
        padding: 6rem calc(var(--roller-rail-width) + 1rem) 3rem 1.2rem;
    }
    .section-copy h2 { font-size: clamp(2.7rem, 13vw, 4.8rem); }
    .downloads-panel { overflow-y: auto; background-position: 48% center; }
    .kinetra-download { display: block; margin-block: 1rem 2rem; }
    .kinetra-identity img { width: 4.25rem; }
    .kinetra-identity h2 { font-size: clamp(3rem, 15vw, 4.5rem); }
    .kinetra-tagline { font-size: .95rem; }
    .kinetra-features { margin-top: 1.25rem; grid-template-columns: 1fr; gap: .55rem; }
    .kinetra-features article { min-height: 0; padding: .9rem; }
    .kinetra-features h3 { margin-top: .55rem; }
    .kinetra-get { align-items: center; }
    .kinetra-actions { grid-template-columns: 1fr; }
    .kinetra-actions small { grid-column: auto; }
    .kinetra-qr { flex-basis: 5.4rem; }
}

@media (prefers-reduced-motion: reduce) {
    .harmonica-panel,
    .capacitor-button,
    .capacitor-body { transition-duration: .01ms; animation-duration: .01ms; }
}

/* The production rollers use the approved photorealistic rendered component.
   CSS supplies only positioning, live labels and interaction transforms. */
.capacitor-button::before,
.capacitor-button::after,
.capacitor-body::before,
.capacitor-body::after,
.capacitor-terminal {
    content: none;
    display: none;
}

.capacitor-body {
    z-index: 2;
    inset: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
}

.capacitor-rail {
    position: absolute;
    z-index: 1;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 64%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
    user-select: none;
    filter: brightness(.78) drop-shadow(.35rem .5rem .65rem rgba(0, 0, 0, .75));
    transform: translateX(-42%);
}

.capacitor-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
    pointer-events: none;
    user-select: none;
    filter: drop-shadow(0 1.2rem 1rem rgba(0, 0, 0, .68));
}

.capacitor-label {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: rgba(241, 244, 236, .82);
    text-shadow: 0 2px 5px #000, 0 0 10px rgba(0, 0, 0, .9);
}

.capacitor-button:hover .capacitor-body,
.capacitor-button:focus-visible .capacitor-body {
    box-shadow: none;
}

.capacitor-button:hover .capacitor-image,
.capacitor-button:focus-visible .capacitor-image {
    filter: brightness(1.08) drop-shadow(0 0 1rem rgba(183, 227, 107, .28)) drop-shadow(0 1.2rem 1rem rgba(0, 0, 0, .72));
}

@media (max-width: 700px) {
    .capacitor-rail { width: 66%; transform: translateX(-38%); }
}

#capacitor-3d-host {
    position: fixed;
    z-index: 49;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

#capacitor-3d-host canvas { display: block; width: 100%; height: 100%; }

@media (min-width: 701px) {
    .capacitor-menu {
        inset: 0;
        display: block;
        width: 100%;
        height: 100%;
        padding: 0;
        background: transparent;
    }
    .capacitor-button {
        position: absolute;
        min-width: 0;
        height: auto;
        padding: 0;
        pointer-events: none;
        transform-origin: 50% 50%;
    }
    #capacitor-3d-host canvas { pointer-events: auto; }
    html.capacitor-3d-ready .capacitor-image,
    html.capacitor-3d-ready .capacitor-rail { display: none; }
    html.capacitor-3d-ready .capacitor-body {
        inset: 0;
        overflow: visible;
        transform: none !important;
    }
    html.capacitor-3d-ready .capacitor-label {
        display: none;
    }
    .capacitor-button:hover,
    .capacitor-button:focus-visible { transform: none; filter: none; }
}

@media (max-width: 700px) {
    #capacitor-3d-host { display: none; }
}

/* The shared PCI rail has been retired. Every bronze roller now owns an
   individual motherboard socket in its GLB model. */
.capacitor-rail { display: none !important; }

/* Lightweight menu renders: these PNGs were baked once from the approved
   Blender models and camera, so visitors never download the production GLBs. */
.capacitor-button::before,
.capacitor-button::after,
.capacitor-body::before,
.capacitor-body::after { display: none !important; }
.capacitor-body {
    inset: 0;
    overflow: visible;
    border: 0;
    border-radius: 0;
    background: none;
    box-shadow: none;
    transform: none !important;
}
.capacitor-image { display: block; width: 100%; height: 100%; object-fit: contain; }
.capacitor-label { display: none; }
.capacitor-button:disabled { cursor: default; filter: saturate(.82) brightness(.9); }

@media (min-width: 701px) {
    .capacitor-menu { inset: 0; display: block; width: 100%; height: 100%; padding: 0; background: none; cursor: default; pointer-events: none; }
    /* The transparent render and capacitor body are visual only. Each desktop
       button exposes a small hit target over its inscription, preventing the
       overlapping PNG rectangles from stealing clicks from nearby words. */
    .capacitor-button { position: absolute; padding: 0; height: auto; cursor: default; pointer-events: none !important; transform: none !important; }
    .capacitor-body,
    .capacitor-image,
    .capacitor-label { pointer-events: none; }
    .capacitor-hotspot {
        position: absolute;
        z-index: 8;
        display: block;
        pointer-events: auto !important;
        cursor: pointer !important;
        background: transparent;
    }
    .capacitor-button:disabled .capacitor-hotspot { cursor: default !important; pointer-events: none !important; }
    .capacitor-button[data-section="landing"] { z-index: 4; left: 88.0729%; top: 67.5%; width: 8.6979%; aspect-ratio: 167 / 351; }
    .capacitor-button[data-section="downloads"] { z-index: 1; left: 78.4375%; top: 53.4259%; width: 5.9375%; aspect-ratio: 114 / 387; }
    .capacitor-button[data-section="services"] { z-index: 2; left: 81.4063%; top: 58.0556%; width: 6.875%; aspect-ratio: 132 / 388; }
    .capacitor-button[data-section="products"] { z-index: 3; left: 84.8958%; top: 62.6852%; width: 7.3958%; aspect-ratio: 142 / 392; }
    .capacitor-button[data-section="landing"] .capacitor-hotspot { left: 37%; top: 28%; width: 34%; height: 46%; }
    .capacitor-button[data-section="downloads"] .capacitor-hotspot { left: 29%; top: 23%; width: 37%; height: 51%; }
    .capacitor-button[data-section="services"] .capacitor-hotspot { left: 28%; top: 27%; width: 34%; height: 45%; }
    .capacitor-button[data-section="products"] .capacitor-hotspot { left: 24%; top: 25%; width: 38%; height: 49%; }
    .capacitor-button:not(:disabled):hover,
    .capacitor-button:not(:disabled):focus-visible { filter: brightness(1.12); }
}

@media (max-width: 700px) {
    .capacitor-button { padding: .16rem; }
    .capacitor-body { position: relative; display: block; width: 100%; height: 100%; }
    .capacitor-image { object-fit: contain; }
    .capacitor-hotspot { display: none; }
}

/* Capacitors remain physically stationary. Interaction effects will be
   introduced separately rather than moving or filtering the hardware. */
.capacitor-button,
.capacitor-button:hover,
.capacitor-button:focus-visible,
.capacitor-button.is-unplugging,
.capacitor-button:hover .capacitor-body,
.capacitor-button:focus-visible .capacitor-body,
.capacitor-button:hover .capacitor-image,
.capacitor-button:focus-visible .capacitor-image {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    filter: none !important;
}