.homepage-preview {
    --preview-green: #4ade80;
    --preview-dark: #080c0a;
    letter-spacing: 0;
}
.homepage-preview > header { height: 64px; box-shadow: none; }

/* Reserve the first viewport until the calculator cards are inserted. */
.homepage-preview .preview-calculator #partsGrid:empty { min-height: 100vh; }

.homepage-preview .preview-hero {
    position: relative;
    isolation: isolate;
    width: 100%;
    height: 278px;
    background: var(--preview-dark);
    color: #fff;
    overflow: hidden;
}
.homepage-preview .preview-hero-copy {
    position: relative;
    z-index: 2;
    width: min(100% - 48px, 1100px);
    margin: 0 auto;
    padding: 27px 0;
    pointer-events: none;
}
.homepage-preview .preview-hero h1 {
    margin: 0;
    max-width: 570px;
    font-size: 42px;
    line-height: 1.12;
    font-weight: 700;
    letter-spacing: 0;
}
.homepage-preview .preview-title-line { display: block; overflow: hidden; padding-bottom: 4px; margin-bottom: -4px; }
.homepage-preview .preview-title-line > span { display: block; }
.homepage-preview .preview-title-line:nth-child(2) > span { color: var(--preview-green); }
.homepage-preview .preview-title-word { display: inline-block; vertical-align: top; animation: preview-word-arrive .95s cubic-bezier(.16, 1, .3, 1) both; animation-delay: calc(.12s + var(--word-index) * .09s); }
.homepage-preview .preview-hero-description {
    max-width: 550px;
    margin: 12px 0 0;
    font-size: 15px;
    line-height: 1.5;
    color: #ccd7d0;
    animation: preview-copy-arrive .85s .6s cubic-bezier(.16, 1, .3, 1) both;
}
.homepage-preview .preview-hero-actions {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-top: 18px;
    pointer-events: auto;
    width: fit-content;
    max-width: 100%;
}
.homepage-preview .preview-primary-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 22px;
    min-height: 46px;
    padding: 12px 23px;
    border-radius: 6px;
    background: #15803d;
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
    transition: background-color .2s ease;
    animation: preview-action-arrive .85s .8s cubic-bezier(.16, 1, .3, 1) both;
}
.homepage-preview .preview-primary-action:hover { background: #166534; }
.homepage-preview .preview-primary-action i { font-size: 12px; animation: preview-arrow 2.5s 1s ease-in-out infinite; }
.homepage-preview .preview-reference-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-size: 13px; color: #dce8df; animation: preview-action-arrive .85s .96s cubic-bezier(.16, 1, .3, 1) both; }
.homepage-preview .preview-reference-link i { font-size: 10px; }
.homepage-preview .preview-reference-link:hover { text-decoration: underline; text-underline-offset: 4px; }
.homepage-preview .preview-primary-action:focus-visible,
.homepage-preview .preview-reference-link:focus-visible { outline: 3px solid var(--preview-green); outline-offset: 4px; }

.homepage-preview .preview-hero-scene {
    position: absolute;
    z-index: 0;
    right: 0;
    top: 0;
    width: 57%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    mask-image: linear-gradient(to right, transparent, #000 30%);
}
.homepage-preview .preview-hero-photo {
    position: absolute;
    inset: 0;
}
.homepage-preview .preview-hero-picture { display: contents; }
.homepage-preview .preview-hero-image {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 78%;
    animation: preview-photo-arrive 1.4s .2s both;
}
.homepage-preview .preview-live-scene { position: absolute; inset: 0; display: block; width: 100%; height: 100%; opacity: 0; pointer-events: none; }
.homepage-preview .preview-hero-photo.is-live-ready > .preview-live-scene { opacity: 1; }
.homepage-preview .preview-hero-photo.is-live-ready .preview-hero-image { opacity: 0; animation: none; }
.homepage-preview .preview-orbit-part { position: absolute; z-index: 1; width: 62px; height: 62px; will-change: transform, opacity; }
.homepage-preview .preview-orbit-part > span { display: grid; place-items: center; width: 100%; height: 100%; animation: preview-action-arrive 1.1s .5s cubic-bezier(.16, 1, .3, 1) both; }
.homepage-preview .preview-orbit-part picture { display: block; width: 100%; height: 100%; }
.homepage-preview .preview-orbit-part img { display: block; width: 100%; height: 100%; object-fit: contain; transform: scale(1.42); }
.homepage-preview .preview-orbit-gpu img { transform: scale(1.63); }
.homepage-preview .preview-orbit-ram img { transform: scale(1.73); }
.homepage-preview .preview-orbit-cpu { left: 19%; top: 18%; }
.homepage-preview .preview-orbit-gpu { right: 11%; bottom: 14%; }
.homepage-preview .preview-orbit-ram { right: 19%; top: 9%; width: 52px; height: 52px; }
.homepage-preview .preview-scene-offer {
    position: absolute;
    z-index: 2;
    left: 50%;
    bottom: 12px;
    width: min(254px, 66%);
    height: 54px;
    padding: 7px 15px;
    display: grid;
    grid-template-columns: 1fr 34px;
    grid-template-rows: 13px 25px;
    align-items: center;
    border: 1px solid #42634d;
    border-radius: 8px;
    background: #101a14;
    color: #4ade80;
    box-shadow: 0 9px 20px -9px #14281b66;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translate(-50%, 90px);
    will-change: transform, opacity;
}
.homepage-preview .is-live-ready > .preview-scene-offer { visibility: visible; }
.homepage-preview .preview-scene-offer-label { grid-column: 1; font-size: 9px; font-weight: 500; line-height: 13px; color: #dce8df; }
.homepage-preview .preview-scene-offer strong { grid-column: 1; font-size: 24px; font-weight: 800; line-height: 25px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.homepage-preview .preview-scene-check { grid-column: 2; grid-row: 1 / 3; display: grid; place-items: center; width: 32px; height: 32px; border: 1px solid #3b995a; border-radius: 50%; background: #1e6935; color: #fff; font-size: 15px; opacity: 0; }
.homepage-preview .preview-hero.is-motion-offscreen * { animation-play-state: paused !important; }

.homepage-preview .preview-process-band { width: 100%; background: #101a14; border-top: 1px solid #233429; border-bottom: 1px solid #2b3b30; color: #ecfdf5; }
.homepage-preview .preview-process { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); max-width: 1100px; margin: 0 auto; padding: 13px 0; list-style: none; }
.homepage-preview .preview-process li { display: flex; align-items: center; gap: 11px; padding: 0 22px; min-width: 0; }
.homepage-preview .preview-process li + li { border-left: 1px solid #2c3e31; }
.homepage-preview .preview-process span { font-size: 10px; color: #90b29c; }
.homepage-preview .preview-process strong { font-size: 12px; line-height: 1.45; font-weight: 500; }
.homepage-preview .preview-process i { margin-left: auto; color: var(--preview-green); font-size: 11px; }

.homepage-preview .preview-calculator { width: 100%; max-width: 1140px; padding: 0 20px 40px; }
.homepage-preview .preview-calculator > .page-section { margin-top: 20px; }
.homepage-preview .preview-calculator-heading { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 16px; }
.homepage-preview .preview-calculator-heading h2 { margin: 0; font-size: 23px; font-weight: 700; line-height: 1.3; color: #16271c; letter-spacing: 0; }
.homepage-preview .home-reference-section::before { display: none; }

@keyframes preview-word-arrive { from { opacity: 0; transform: translateY(115%) rotate(4deg); filter: blur(5px); } to { opacity: 1; transform: translateY(0) rotate(0); filter: blur(0); } }
@keyframes preview-copy-arrive { from { opacity: 0; transform: translate(-22px, 20px); } to { opacity: 1; transform: translate(0, 0); } }
@keyframes preview-action-arrive { from { opacity: 0; transform: translate(-34px, 28px) scale(.92); } to { opacity: 1; transform: translate(0, 0) scale(1); } }
@keyframes preview-photo-arrive { from { opacity: 0; transform: translateY(80px) scale(.9); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes preview-arrow { 0%, 60%, 100% { transform: translateY(0); } 75% { transform: translateY(3px); } }

@media (min-width: 1700px) {
    .homepage-preview .preview-hero-scene { width: calc(50% + 300px); }
    .homepage-preview .preview-hero-image { object-fit: cover; object-position: center 77%; }
}
@media (min-width: 901px) and (max-height: 800px) {
    .homepage-preview .preview-hero { height: 238px; }
    .homepage-preview .preview-hero-copy { padding: 20px 0; }
    .homepage-preview .preview-hero h1 { font-size: 38px; }
    .homepage-preview .preview-hero-description { margin-top: 10px; font-size: 14px; }
    .homepage-preview .preview-hero-actions { margin-top: 14px; }
    .homepage-preview .preview-calculator-heading h2 { font-size: 21px; }
}
@media (max-width: 1100px) and (min-width: 701px) {
    .homepage-preview .preview-hero h1 { font-size: 36px; }
    .homepage-preview .preview-hero-copy { padding-top: 30px; }
    .homepage-preview .preview-hero-scene { width: 52%; }
    .homepage-preview .preview-hero-description { max-width: 450px; font-size: 13px; }
    .homepage-preview .preview-orbit-part { width: 50px; height: 50px; }
}
@media (max-width: 900px) and (min-width: 701px) {
    .homepage-preview .preview-hero { height: 260px; }
    .homepage-preview .preview-hero h1 { font-size: 30px; }
    .homepage-preview .preview-hero-description { max-width: 350px; font-size: 12px; }
    .homepage-preview .preview-hero-actions { gap: 16px; }
    .homepage-preview .preview-reference-link { font-size: 11px; }
    .homepage-preview .preview-primary-action { padding: 10px 17px; font-size: 12px; }
    .homepage-preview .preview-orbit-ram { display: none; }
}
@media (min-width: 901px) and (max-height: 740px) {
    .homepage-preview .preview-hero { height: clamp(180px, calc(100svh - 520px), 200px); }
    .homepage-preview .preview-hero-copy { padding: 14px 0; }
    .homepage-preview .preview-hero h1 { font-size: 32px; }
    .homepage-preview .preview-hero-description { margin-top: 8px; font-size: 13px; }
    .homepage-preview .preview-hero-actions { margin-top: 10px; }
    .homepage-preview .preview-primary-action { min-height: 42px; padding-top: 10px; padding-bottom: 10px; }
    .homepage-preview .preview-process { padding-top: 10px; padding-bottom: 10px; }
    .homepage-preview .preview-calculator > .page-section { margin-top: 16px; }
}
@media (max-width: 700px) {
    .homepage-preview > header { height: 58px; padding: 0 18px; }
    .homepage-preview .brand-logo { height: 32px; max-width: 210px; }
    .homepage-preview .mobile-toggle-btn { padding: 6px 0; font-size: 22px; }
    .homepage-preview .preview-hero { height: 330px; }
    .homepage-preview .preview-hero-copy { width: calc(100% - 32px); padding: 20px 0 0; text-align: center; }
    .homepage-preview .preview-hero h1 { max-width: none; font-size: 30px; line-height: 1.13; }
    .homepage-preview .preview-hero-description { font-size: 12px; margin: 9px 0 0; max-width: none; }
    .homepage-preview .preview-hero-actions { justify-content: center; gap: 17px; width: 100%; margin-top: 13px; }
    .homepage-preview .preview-primary-action { min-height: 42px; padding: 10px 17px; gap: 19px; font-size: 12px; }
    .homepage-preview .preview-reference-link { font-size: 11px; min-height: 42px; gap: 6px; }
    .homepage-preview .preview-reference-link i { font-size: 9px; }
    .homepage-preview .preview-hero-scene { width: 100%; height: 170px; top: auto; bottom: 0; mask-image: linear-gradient(to bottom, transparent, #000 23%); }
    .homepage-preview .preview-hero-image { height: 300px; bottom: -35px; object-fit: cover; object-position: center top; }
    .homepage-preview .preview-orbit-part { width: 48px; height: 48px; }
    .homepage-preview .preview-orbit-part img { transform: scale(1.31); }
    .homepage-preview .preview-orbit-cpu { left: 8%; top: 38%; }
    .homepage-preview .preview-orbit-gpu { right: 8%; bottom: 12%; }
    .homepage-preview .preview-orbit-ram { display: none; }
    .homepage-preview .preview-scene-offer { bottom: 8px; width: min(250px, 72%); height: 44px; padding: 4px 12px; grid-template-columns: 1fr 28px; grid-template-rows: 12px 22px; }
    .homepage-preview .preview-scene-offer-label { font-size: 8px; line-height: 12px; }
    .homepage-preview .preview-scene-offer strong { font-size: 21px; line-height: 22px; }
    .homepage-preview .preview-scene-check { width: 27px; height: 27px; font-size: 12px; }
    .homepage-preview .preview-process { padding: 12px 10px; }
    .homepage-preview .preview-process li { display: grid; grid-template-columns: 1fr; gap: 4px; padding: 0 9px; text-align: center; }
    .homepage-preview .preview-process span { font-size: 9px; }
    .homepage-preview .preview-process strong { font-size: 10px; line-height: 1.4; }
    .homepage-preview .preview-process i { display: none; }
    .homepage-preview .preview-calculator { padding: 0 18px 30px; }
    .homepage-preview .preview-calculator > .page-section { margin-top: 20px; }
    .homepage-preview .preview-calculator-heading { display: block; }
    .homepage-preview .preview-calculator-heading h2 { font-size: 21px; }
}
@media (max-width: 359px) {
    .homepage-preview .preview-hero h1 { font-size: 26px; }
    .homepage-preview .preview-hero-description { font-size: 11px; }
    .homepage-preview .preview-hero-actions { gap: 13px; }
    .homepage-preview .preview-primary-action { padding: 10px 15px; }
    .homepage-preview .preview-reference-link { font-size: 10px; }
    .homepage-preview .preview-process li { padding: 0 6px; }
    .homepage-preview .preview-process strong { font-size: 9px; }
    .homepage-preview .preview-calculator-heading h2 { font-size: 19px; }
    .homepage-preview .preview-orbit-cpu { left: 3%; }
    .homepage-preview .preview-orbit-gpu { right: 3%; }
    .homepage-preview .preview-orbit-part img { transform: scale(1.21); }
}
@media (max-width: 700px) and (max-height: 700px) {
    .homepage-preview .preview-hero { height: 276px; }
    .homepage-preview .preview-hero-copy { padding-top: 13px; }
    .homepage-preview .preview-hero h1 { font-size: 26px; }
    .homepage-preview .preview-hero-description { margin-top: 7px; font-size: 11px; }
    .homepage-preview .preview-hero-actions { margin-top: 9px; }
    .homepage-preview .preview-hero-scene { height: 134px; }
    .homepage-preview .preview-hero-image { height: 245px; bottom: -29px; }
    .homepage-preview .preview-orbit-part { width: 40px; height: 40px; }
    .homepage-preview .preview-scene-offer { bottom: 6px; height: 36px; padding: 2px 11px; grid-template-rows: 11px 19px; }
    .homepage-preview .preview-scene-offer-label { line-height: 11px; }
    .homepage-preview .preview-scene-offer strong { font-size: 18px; line-height: 19px; }
    .homepage-preview .preview-scene-check { width: 24px; height: 24px; font-size: 11px; }
}
@media (prefers-reduced-motion: reduce) {
    .homepage-preview .preview-hero * { animation: none !important; }
    .homepage-preview .preview-live-scene { display: none; }
    .homepage-preview .preview-scene-offer { display: none; }
    .homepage-preview .preview-hero-photo.is-live-ready .preview-hero-image { opacity: 1; }
}