:root {
    --site-ink: #18212f;
    --site-muted: #64748b;
    --site-line: #e5e7eb;
    --site-paper: #ffffff;
    --site-warm: #f8f7f4;
    --site-indigo: #5b5bd6;
    --site-indigo-dark: #4343b8;
    --site-focus: rgba(91, 91, 214, .24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    min-width: 0;
    color: var(--site-ink);
    background: var(--site-warm);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", "Noto Sans SC", sans-serif;
    overflow-x: clip;
}
img, svg, video { max-width: 100%; }
button, input, select, textarea { font: inherit; }

.site-skip-link {
    position: fixed;
    top: -5rem;
    left: 1rem;
    z-index: 100;
    border-radius: .65rem;
    padding: .7rem 1rem;
    color: white;
    background: var(--site-ink);
    text-decoration: none;
}
.site-skip-link:focus { top: 1rem; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 40;
    border-bottom: 1px solid rgba(229, 231, 235, .92);
    background: rgba(255, 255, 255, .94);
    backdrop-filter: blur(16px);
}
.site-nav {
    width: min(1180px, calc(100% - 2rem));
    min-height: 70px;
    margin-inline: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.site-nav-frame { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.site-brand {
    display: inline-flex;
    min-width: 0;
    align-items: center;
    gap: .65rem;
    color: var(--site-ink);
    text-decoration: none;
    font-size: 1.08rem;
    font-weight: 800;
    letter-spacing: -.02em;
}
.site-logo { width: 44px !important; height: 44px !important; flex: 0 0 44px; }
.site-version {
    border-radius: 999px;
    padding: .18rem .5rem;
    color: var(--site-indigo-dark);
    background: #eeeeff;
    font-size: .68rem;
    font-weight: 750;
}
.site-nav-links,
.site-nav-actions {
    display: flex;
    align-items: center;
    gap: clamp(.75rem, 1.8vw, 1.35rem);
}
.site-nav-links { margin-left: auto; }
.site-nav-actions { display: none; }
.site-nav-link {
    color: #475569;
    text-decoration: none;
    font-size: .9rem;
    font-weight: 580;
    white-space: nowrap;
}
.site-nav-link:hover,
.site-nav-link[aria-current="page"] { color: var(--site-indigo-dark); }
.site-nav-button,
.site-menu-button {
    min-height: 38px;
    border: 1px solid var(--site-line);
    border-radius: .7rem;
    padding: .42rem .72rem;
    color: #475569;
    background: white;
    cursor: pointer;
}
.site-nav-button:hover,
.site-menu-button:hover { border-color: #b8b8e8; color: var(--site-indigo-dark); }
.site-menu-button { display: none; margin-left: auto; padding-inline: .65rem; }
.site-mobile-menu {
    border-top: 1px solid var(--site-line);
    background: white;
}
.site-mobile-menu[hidden] { display: none !important; }
.site-mobile-menu-inner {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
    padding: .65rem 0 1rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .3rem;
}
.site-mobile-menu .site-nav-link {
    border-radius: .65rem;
    padding: .7rem .75rem;
}
.site-mobile-menu .site-nav-link:hover { background: #f5f3ff; }

.site-page-hero {
    border-bottom: 1px solid var(--site-line);
    background: var(--site-paper);
}
.site-page-hero-inner {
    width: min(900px, calc(100% - 2rem));
    margin-inline: auto;
    padding: clamp(2.6rem, 7vw, 5.25rem) 0;
    text-align: center;
}
.site-eyebrow {
    margin-bottom: .8rem;
    color: var(--site-indigo-dark);
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.site-page-hero h1 {
    margin: 0;
    color: var(--site-ink);
    font-size: clamp(2.1rem, 6vw, 4rem);
    line-height: 1.05;
    letter-spacing: -.045em;
}
.site-page-hero p {
    max-width: 680px;
    margin: 1rem auto 0;
    color: var(--site-muted);
    font-size: clamp(1rem, 2.4vw, 1.18rem);
    line-height: 1.75;
}

.site-platform-pills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: .55rem;
    margin: 1.4rem 0 0;
}
.site-platform-pill {
    border: 1px solid #dddff7;
    border-radius: 999px;
    padding: .4rem .72rem;
    color: #434b61;
    background: #f8f8ff;
    font-size: .82rem;
    font-weight: 650;
    text-decoration: none;
}
.site-platform-pill:hover { border-color: #b8b8e8; color: var(--site-indigo-dark); }

/* Product hero: a live FPGA engineering run, not an architecture diagram. */
.sp-hero {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    border-bottom: 1px solid #dfe3eb;
    color: #f7f8fb;
    background:
        radial-gradient(circle at 76% 15%, rgba(97, 108, 255, .2), transparent 27rem),
        linear-gradient(132deg, #101622 0%, #151d2d 58%, #111827 100%);
}
.sp-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -2;
    opacity: .34;
    background-image:
        linear-gradient(rgba(148, 163, 184, .12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(148, 163, 184, .12) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: linear-gradient(90deg, black, rgba(0,0,0,.12) 72%, transparent);
}
.sp-hero-trace {
    position: absolute;
    z-index: -1;
    width: 46rem;
    height: 46rem;
    right: -22rem;
    top: -18rem;
    border: 1px solid rgba(129, 140, 248, .25);
    border-radius: 50%;
    box-shadow:
        0 0 0 4rem rgba(129, 140, 248, .035),
        0 0 0 9rem rgba(129, 140, 248, .025);
}
.sp-hero-inner {
    width: min(1180px, calc(100% - 2rem));
    min-height: min(760px, calc(100svh - 70px));
    margin-inline: auto;
    padding: clamp(4.5rem, 8vw, 7.5rem) 0 clamp(3.5rem, 6vw, 5.5rem);
    display: grid;
    grid-template-columns: minmax(0, 1.03fr) minmax(390px, .97fr);
    align-items: center;
    gap: clamp(3rem, 7vw, 7rem);
}
.sp-hero-copy { min-width: 0; }
.sp-hero-kicker {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    margin-bottom: 1.35rem;
    color: #aeb8ca;
    font-size: .74rem;
    font-weight: 750;
    letter-spacing: .16em;
    text-transform: uppercase;
}
.sp-hero-kicker::before {
    content: "";
    width: 2.8rem;
    height: 1px;
    background: #7c86ff;
}
.sp-hero h1 {
    margin: 0;
    letter-spacing: -.06em;
    line-height: .92;
}
.sp-hero-product,
.sp-hero-promise { display: block; }
.sp-hero-product {
    color: #fff;
    font-size: clamp(4rem, 8vw, 7.2rem);
    font-weight: 820;
}
.sp-hero-promise {
    max-width: 15ch;
    margin-top: 1.15rem;
    color: #d7ddeb;
    font-size: clamp(1.65rem, 3.4vw, 2.8rem);
    font-weight: 630;
    line-height: 1.18;
    letter-spacing: -.035em;
}
.sp-hero-lead {
    max-width: 39rem;
    margin: 1.8rem 0 0;
    color: #c6cedd;
    font-size: clamp(1.05rem, 1.8vw, 1.24rem);
    line-height: 1.75;
}
.sp-hero-detail {
    max-width: 36rem;
    margin: .7rem 0 0;
    color: #8f9aad;
    font-size: .95rem;
    line-height: 1.7;
}
.sp-hero-actions {
    margin-top: 2rem;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: .8rem;
}
.sp-hero-primary,
.sp-hero-secondary {
    min-height: 3.25rem;
    border-radius: .6rem;
    padding: .8rem 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    font-size: .95rem;
    font-weight: 720;
    text-decoration: none;
    transition: transform .2s ease, border-color .2s ease, background .2s ease;
}
.sp-hero-primary {
    min-width: 12rem;
    border: 1px solid #8b94ff;
    color: #101622;
    background: #a8afff;
    cursor: pointer;
}
.sp-hero-primary:hover { transform: translateY(-2px); background: #bec3ff; }
.sp-hero-secondary {
    border: 1px solid #3a4558;
    color: #d7ddeb;
    background: rgba(255,255,255,.025);
}
.sp-hero-secondary:hover { border-color: #717d91; color: white; }
.sp-hero-form-wrap { max-width: 31rem; }
.sp-hero-form-wrap .inline-license-form { margin: .85rem 0 0 !important; }
.sp-hero-platforms {
    margin: 1.35rem 0 0;
    color: #7f8a9f;
    font-size: .77rem;
    line-height: 1.8;
}
.sp-hero-platforms a { color: #aeb8ca; text-decoration: none; white-space: nowrap; }
.sp-hero-platforms a:hover { color: white; }

.sp-flow {
    position: relative;
    border-left: 1px solid rgba(139, 148, 255, .52);
    padding: .4rem 0 .35rem clamp(1.5rem, 4vw, 3.15rem);
}
.sp-flow::before,
.sp-flow::after {
    content: "";
    position: absolute;
    left: -3px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: #9ea6ff;
    box-shadow: 0 0 16px #818cf8;
}
.sp-flow::before { top: 0; }
.sp-flow::after { bottom: 0; }
.sp-flow-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    color: #7f8a9f;
    font: 700 .68rem/1.2 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: .17em;
}
.sp-flow-live { display: inline-flex; align-items: center; gap: .45rem; color: #9ca6b8; letter-spacing: .04em; }
.sp-flow-live i {
    width: .42rem;
    height: .42rem;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 0 .28rem rgba(74,222,128,.1), 0 0 14px rgba(74,222,128,.55);
    animation: sp-live 1.8s ease-in-out infinite;
}
.sp-flow-prompt {
    margin: 1.65rem 0 2.15rem;
    padding: 0 0 1.65rem;
    border-bottom: 1px solid rgba(148,163,184,.18);
}
.sp-flow-prompt span {
    color: #818cf8;
    font-size: .72rem;
    font-weight: 750;
    letter-spacing: .12em;
}
.sp-flow-prompt p {
    margin: .75rem 0 0;
    color: #eef1f7;
    font-size: clamp(1rem, 2vw, 1.25rem);
    line-height: 1.65;
}
.sp-flow-stages { margin: 0; padding: 0; list-style: none; }
.sp-flow-stages li {
    min-height: 4.15rem;
    border-bottom: 1px solid rgba(148,163,184,.13);
    display: grid;
    grid-template-columns: 2rem 5.7rem minmax(0, 1fr) auto;
    align-items: center;
    gap: .65rem;
    color: #5f6a7d;
    font: 600 .73rem/1.3 ui-monospace, SFMono-Regular, Consolas, monospace;
}
.sp-flow-index { color: #4d586b; }
.sp-flow-stages strong { color: #8994a7; letter-spacing: .07em; }
.sp-flow-stages small { color: #778296; font: 500 .8rem/1.4 Inter, ui-sans-serif, system-ui, sans-serif; }
.sp-flow-stages b { color: #5f6a7d; font-size: .65rem; letter-spacing: .08em; }
.sp-flow-stages .is-complete strong { color: #d8deea; }
.sp-flow-stages .is-complete b { color: #69d89a; }
.sp-flow-stages .is-active {
    margin-left: -1rem;
    padding-left: 1rem;
    border-bottom-color: transparent;
    background: linear-gradient(90deg, rgba(129,140,248,.13), transparent 85%);
}
.sp-flow-stages .is-active strong,
.sp-flow-stages .is-active small { color: #f2f4ff; }
.sp-flow-stages .is-active b { color: #a8afff; }
.sp-flow-result {
    margin-top: 1.7rem;
    display: flex;
    gap: .75rem;
    color: #8f9aad;
    font-size: .82rem;
}
.sp-flow-result span { color: #818cf8; }
.sp-flow-result p { margin: 0; line-height: 1.55; }

.sp-hero-capabilities {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
    border-top: 1px solid rgba(148,163,184,.18);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}
.sp-hero-capabilities > div {
    min-width: 0;
    padding: 1.35rem clamp(1rem, 3vw, 2rem);
    display: grid;
    grid-template-columns: auto 1fr;
    column-gap: .85rem;
    align-items: baseline;
}
.sp-hero-capabilities > div + div { border-left: 1px solid rgba(148,163,184,.18); }
.sp-hero-capabilities span {
    grid-row: 1 / span 2;
    color: #626d80;
    font: 700 .68rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
}
.sp-hero-capabilities strong { color: #d9dfeb; font-size: .88rem; }
.sp-hero-capabilities small { margin-top: .2rem; color: #7f8a9f; font-size: .75rem; }
@keyframes sp-live { 50% { opacity: .45; transform: scale(.82); } }

.site-region-bar {
    border-bottom: 1px solid #dddff7;
    color: #37375f;
    background: #f4f3ff;
    font-size: .86rem;
}
.site-region-bar-inner {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
    padding: .55rem 0;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: .45rem .8rem;
}
.site-region-bar a { color: var(--site-indigo-dark); font-weight: 750; }
.site-region-dismiss {
    border: 0;
    padding: .3rem .45rem;
    color: #74749b;
    background: transparent;
    cursor: pointer;
}

.site-footer {
    border-top: 1px solid var(--site-line);
    padding: 2rem 0;
    color: var(--site-muted);
    background: white;
    font-size: .86rem;
}
.site-footer-inner {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: .8rem 1rem;
}
.site-footer-links { display: flex; flex-wrap: wrap; gap: .85rem; }
.site-footer a { color: var(--site-indigo-dark); text-decoration: none; }
.site-trademark {
    flex: 1 0 100%;
    margin: .4rem 0 0;
    color: #8a94a6;
    font-size: .72rem;
    line-height: 1.65;
    text-align: center;
}

:where(a, button, input, select, textarea):focus-visible {
    outline: 3px solid var(--site-focus);
    outline-offset: 3px;
}

@media (max-width: 900px) {
    .site-nav { min-height: 64px; }
    .site-nav-links { display: none !important; }
    .site-nav-actions { display: flex; margin-left: auto; gap: .5rem; }
    .site-nav-actions .site-github-link { display: none; }
    .site-menu-button { display: inline-flex; align-items: center; justify-content: center; }
    .sp-hero-inner {
        min-height: 0;
        grid-template-columns: 1fr;
        gap: 4rem;
        padding-top: 4.5rem;
    }
    .sp-hero-copy { max-width: 44rem; }
    .sp-flow { max-width: 42rem; }
}

@media (max-width: 520px) {
    .site-nav { width: min(100% - 1.25rem, 1180px); }
    .site-brand { gap: .45rem; font-size: 1rem; }
    .site-logo { width: 40px !important; height: 40px !important; flex-basis: 40px; }
    .site-version { display: none !important; }
    #cnSiteLinkMobile { display: none !important; }
    .site-nav-button { padding-inline: .58rem; }
    .site-mobile-menu-inner { width: min(100% - 1.25rem, 1180px); grid-template-columns: 1fr; }
    .site-footer-inner { width: min(100% - 1.25rem, 1180px); align-items: flex-start; flex-direction: column; }
    .sp-hero-inner,
    .sp-hero-capabilities { width: min(100% - 1.25rem, 1180px); }
    .sp-hero-inner { padding: 3.5rem 0 3rem; gap: 3.2rem; }
    .sp-hero-product { font-size: clamp(3.25rem, 17vw, 4.6rem); }
    .sp-hero-promise { max-width: 13ch; font-size: 1.55rem; }
    .sp-hero-actions { align-items: stretch; flex-direction: column; }
    .sp-hero-primary,
    .sp-hero-secondary { width: 100%; }
    .sp-flow { padding-left: 1.25rem; }
    .sp-flow-stages li {
        min-height: 4.55rem;
        grid-template-columns: 1.65rem 5.25rem auto;
        gap: .4rem;
    }
    .sp-flow-stages small { grid-column: 2 / -1; margin-top: -.9rem; }
    .sp-flow-stages b { grid-column: 3; grid-row: 1; justify-self: end; }
    .sp-hero-capabilities { grid-template-columns: 1fr; }
    .sp-hero-capabilities > div + div { border-left: 0; border-top: 1px solid rgba(148,163,184,.18); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
}