/* ==========================================================================
   QuanLLM Harness V5.1 · Reliability / Scientific Verification
   Page-specific visual system. Shared navigation, typography, and theme
   foundations remain in styles.css + theme.css.
   ========================================================================== */

.harness-v1 {
    --h-blue: #5978ef;
    --h-blue-strong: #7894ff;
    --h-cyan: #25bec9;
    --h-emerald: #39bd8b;
    --h-violet: #8a72ea;
    --h-amber: #d8a14b;
    --h-red: #d86a73;
    --h-line: rgba(119, 149, 255, .16);
    --h-line-strong: rgba(63, 208, 218, .34);
    --h-card-border: rgba(137, 161, 197, .13);
    --h-shadow: 0 26px 80px -56px rgba(0,0,0,.82);
    --h-section-gap: 118px;
    background:
        radial-gradient(circle at 80% 7%, rgba(89,120,239,.055), transparent 31rem),
        var(--bg);
}

html[data-theme="light"] .harness-v1 {
    --h-blue: #335bd7;
    --h-blue-strong: #426ce2;
    --h-cyan: #0d909c;
    --h-emerald: #16825f;
    --h-violet: #6f58cd;
    --h-amber: #a96f27;
    --h-red: #b74f59;
    --h-line: rgba(51,91,215,.10);
    --h-line-strong: rgba(13,144,156,.20);
    --h-card-border: rgba(26,49,80,.09);
    --h-shadow: 0 25px 68px -48px rgba(31,54,86,.28);
    background:
        radial-gradient(circle at 80% 7%, rgba(51,91,215,.05), transparent 31rem),
        #f7f9fc;
}

.harness-v1 .navbar.scrolled {
    background: rgba(7,16,29,.82);
    border-bottom-color: rgba(142,164,199,.12);
    box-shadow: 0 14px 50px -34px rgba(0,0,0,.72);
}
html[data-theme="light"] .harness-v1 .navbar.scrolled {
    background: rgba(248,250,253,.90);
    border-bottom-color: rgba(25,45,76,.075);
    box-shadow: 0 14px 42px -32px rgba(25,45,76,.24);
}
.harness-v1 .nav-cta { background: linear-gradient(135deg,var(--h-blue),var(--h-cyan)); box-shadow:0 10px 26px -17px rgba(66,127,238,.7); }
.harness-v1 .details-menu a[aria-current="page"] { background: rgba(89,120,239,.10); border-color: rgba(89,120,239,.18); }
.harness-v1 .icon-sprite { position:absolute; width:0; height:0; overflow:hidden; }
.harness-v1 .button-icon { width:17px; height:17px; fill:none; stroke:currentColor; stroke-width:1.8; stroke-linecap:round; stroke-linejoin:round; flex:none; }

/* Shared section rhythm */
.harness-v1 .harness-section { position:relative; padding:var(--h-section-gap) 0; overflow:clip; }
.harness-v1 .section-header { max-width:850px; margin-bottom:56px; }
.harness-v1 .section-tag {
    display:inline-block; position:relative; padding-left:28px; border:0; background:none;
    color:var(--h-blue-strong); text-transform:uppercase; letter-spacing:.12em;
    font-size:.71rem; font-weight:700;
}
.harness-v1 .section-tag::before { content:""; position:absolute; left:0; top:50%; width:18px; height:1px; background:var(--h-cyan); }
.harness-v1 .section-header h2 { margin-top:14px; font-size:clamp(2rem,4.2vw,3.55rem); line-height:1.12; letter-spacing:-.035em; }
.harness-v1 .section-header p { margin-top:18px; max-width:790px; color:var(--text-muted); line-height:1.86; font-size:1.03rem; }

/* Hero */
.harness-hero {
    position:relative; min-height:100svh; display:flex; align-items:center; padding:132px 0 78px;
    isolation:isolate; overflow:clip;
    background:
        radial-gradient(circle at 79% 23%, rgba(89,120,239,.12), transparent 30rem),
        radial-gradient(circle at 13% 78%, rgba(37,190,201,.065), transparent 27rem),
        linear-gradient(180deg,rgba(255,255,255,.01),transparent 52%);
}
html[data-theme="light"] .harness-hero {
    background:
        radial-gradient(circle at 79% 22%, rgba(51,91,215,.07), transparent 31rem),
        radial-gradient(circle at 13% 78%, rgba(13,144,156,.045), transparent 27rem),
        linear-gradient(180deg,#fbfcff 0%,#f7f9fc 100%);
}
.harness-hero::after { content:""; position:absolute; left:50%; bottom:0; width:min(1180px,92vw); height:1px; transform:translateX(-50%); background:linear-gradient(90deg,transparent,var(--h-line-strong),transparent); opacity:.65; }
.harness-hero__field { position:absolute; inset:0; z-index:-1; pointer-events:none; }
.harness-field-grid { position:absolute; inset:0; background-image:linear-gradient(var(--h-line) 1px,transparent 1px),linear-gradient(90deg,var(--h-line) 1px,transparent 1px); background-size:82px 82px; opacity:.18; mask-image:linear-gradient(to bottom,rgba(0,0,0,.52),transparent 80%); }
.harness-field-orbit { position:absolute; border:1px solid var(--h-line-strong); border-radius:50%; opacity:.11; animation:hOrbit 20s ease-in-out infinite; }
.harness-field-orbit--a { width:760px; height:310px; left:-300px; bottom:6%; transform:rotate(-13deg); }
.harness-field-orbit--b { width:650px; height:270px; right:-250px; top:19%; transform:rotate(17deg); animation-duration:25s; animation-direction:reverse; border-color:var(--h-line); }
.harness-field-code { position:absolute; font-family:"Courier New",monospace; font-size:.72rem; letter-spacing:.04em; color:var(--text-subtle); opacity:.17; animation:hCodeFloat 10s ease-in-out infinite; }
.harness-field-code--a { left:6%; top:27%; }
.harness-field-code--b { right:7%; top:33%; animation-delay:-3s; }
.harness-field-code--c { left:11%; bottom:14%; animation-delay:-6s; color:var(--h-emerald); }
.harness-hero__layout { display:grid; grid-template-columns:minmax(0,.92fr) minmax(520px,1.08fr); gap:58px; align-items:center; }
.harness-hero__copy .hero-badge { margin-bottom:23px; background:rgba(89,120,239,.065); border-color:rgba(89,120,239,.15); color:var(--h-blue-strong); }
.harness-hero__copy h1 { font-size:clamp(2.7rem,4.55vw,4.95rem); line-height:1.03; letter-spacing:-.047em; }
.harness-v1 .gradient-text { display:block; margin-top:5px; background:linear-gradient(100deg,var(--h-blue-strong),var(--h-cyan) 78%); -webkit-background-clip:text; background-clip:text; color:transparent; -webkit-text-fill-color:transparent; }
.harness-hero__lead { margin-top:28px; max-width:735px; color:var(--text-muted); line-height:1.88; font-size:1.055rem; }
.harness-hero__metrics { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:10px; margin-top:38px; }
.harness-hero__metrics > div { padding:14px 12px; border:1px solid var(--h-card-border); border-radius:13px; background:color-mix(in srgb,var(--bg-light) 88%,transparent); backdrop-filter:blur(10px); }
.harness-hero__metrics strong,.harness-hero__metrics span { display:block; }
.harness-hero__metrics strong { color:var(--text); font-size:1.08rem; }
.harness-hero__metrics span { margin-top:4px; color:var(--text-subtle); font-size:.66rem; line-height:1.35; }

/* Runtime panel */
.runtime-demo { min-width:0; --runtime-tilt-x:0deg; --runtime-tilt-y:0deg; transform:perspective(1200px) rotateX(var(--runtime-tilt-x)) rotateY(var(--runtime-tilt-y)); transition:transform .35s cubic-bezier(.2,.7,.2,1); will-change:transform; }
.runtime-demo::before { content:""; position:absolute; inset:8% 4% -6%; z-index:-1; background:radial-gradient(circle,rgba(89,120,239,.18),transparent 65%); filter:blur(38px); opacity:.6; }
.runtime-window { overflow:hidden; border:1px solid rgba(121,151,204,.16); border-radius:22px; background:radial-gradient(circle at 78% 15%,rgba(89,120,239,.08),transparent 22rem),color-mix(in srgb,var(--bg-light) 98%,var(--h-blue) 2%); box-shadow:0 40px 100px -58px rgba(23,54,111,.65); }
html[data-theme="light"] .runtime-window { background:radial-gradient(circle at 78% 15%,rgba(51,91,215,.06),transparent 22rem),rgba(255,255,255,.92); box-shadow:0 34px 80px -50px rgba(32,61,103,.28); }
.runtime-window__bar { height:45px; display:grid; grid-template-columns:78px 1fr auto; gap:10px; align-items:center; padding:0 15px; border-bottom:1px solid var(--h-card-border); font-family:"Courier New",monospace; font-size:.64rem; color:var(--text-subtle); background:rgba(89,120,239,.025); }
.runtime-dots { display:flex; gap:5px; }.runtime-dots i{width:7px;height:7px;border-radius:50%;background:rgba(128,153,190,.34)}.runtime-dots i:first-child{background:#ef6c63}.runtime-dots i:nth-child(2){background:#e4b94f}.runtime-dots i:nth-child(3){background:#49bb79}
.runtime-window__bar em { font-style:normal; color:var(--h-emerald); }
.runtime-window__status { display:flex; justify-content:space-between; align-items:center; padding:16px 18px 12px; }
.runtime-window__status > span { display:flex; align-items:center; gap:9px; color:var(--text-subtle); font-size:.67rem; letter-spacing:.1em; font-weight:700; }
.runtime-window__status > span i { width:7px;height:7px;border-radius:50%;background:var(--h-emerald);box-shadow:0 0 0 5px rgba(57,189,139,.07);animation:hPulse 2s ease-in-out infinite}
.runtime-window__status code { color:var(--h-cyan); font-size:.72rem; }
.runtime-track { padding:4px 16px 12px; display:grid; gap:6px; }
.runtime-stage { position:relative; display:grid; grid-template-columns:32px 105px 1fr; align-items:center; min-height:34px; padding:6px 10px; border:1px solid transparent; border-radius:9px; color:var(--text-subtle); font-family:"Courier New",monospace; font-size:.65rem; transition:.3s ease; }
.runtime-stage::before { content:""; position:absolute; left:15px; top:100%; width:1px; height:8px; background:var(--h-line); }
.runtime-stage:last-child::before { display:none; }
.runtime-stage span { opacity:.55; }.runtime-stage b{font-weight:600;color:var(--text-muted)}.runtime-stage em{justify-self:end;font-style:normal;font-size:.61rem}
.runtime-stage.is-complete { color:var(--h-emerald); }.runtime-stage.is-complete b{color:var(--text)}
.runtime-stage.is-active { border-color:rgba(37,190,201,.24); background:rgba(37,190,201,.055); color:var(--h-cyan); box-shadow:0 10px 24px -20px rgba(37,190,201,.75); }
.runtime-stage.is-active b { color:var(--text); }
.runtime-console { margin:5px 16px 14px; padding:12px 14px; border:1px solid var(--h-card-border); border-radius:12px; background:rgba(4,12,22,.28); font-family:"Courier New",monospace; font-size:.62rem; }
html[data-theme="light"] .runtime-console { background:rgba(51,91,215,.025); }
.runtime-console__line { display:flex; justify-content:space-between; gap:18px; padding:4px 0; color:var(--text-subtle); }.runtime-console__line b{font-weight:500;color:var(--text-muted)}
.runtime-result { display:flex; align-items:center; gap:10px; padding:13px 18px; border-top:1px solid var(--h-card-border); background:rgba(57,189,139,.035); }
.runtime-result span { font-size:.62rem;letter-spacing:.12em;color:var(--text-subtle);font-weight:700}.runtime-result strong{margin-left:auto;font-family:"Courier New",monospace;color:var(--h-cyan);font-size:.76rem}.runtime-result i{width:8px;height:8px;border-radius:50%;background:var(--h-cyan);box-shadow:0 0 0 5px rgba(37,190,201,.07)}
.runtime-result.is-verified strong { color:var(--h-emerald); }.runtime-result.is-verified i { background:var(--h-emerald); box-shadow:0 0 0 5px rgba(57,189,139,.07); }
.runtime-demo__caption { display:flex; justify-content:center; align-items:center; gap:9px; margin-top:14px; color:var(--text-subtle); font-size:.72rem; }.runtime-demo__caption span{width:7px;height:7px;border-radius:50%;background:var(--h-emerald);}

/* Identity + local nav */
.harness-identity { padding:24px 0; border-bottom:1px solid var(--h-card-border); background:color-mix(in srgb,var(--bg-light) 35%,transparent); }
.identity-strip { display:grid; grid-template-columns:minmax(190px,.8fr) minmax(0,1.7fr) auto; gap:26px; align-items:center; }
.identity-strip > div:first-child strong,.identity-strip > div:first-child p { display:block; }.identity-strip > div:first-child strong{margin-top:4px}.identity-strip > div:first-child p{margin-top:3px;color:var(--text-subtle);font-size:.76rem}
.identity-kicker{font-size:.63rem;letter-spacing:.13em;color:var(--h-blue-strong);font-weight:700}
.identity-tags{display:flex;gap:8px;flex-wrap:wrap}.identity-tags span{padding:6px 9px;border:1px solid var(--h-card-border);border-radius:999px;color:var(--text-muted);font-size:.68rem;background:rgba(89,120,239,.022)}
.identity-status{display:flex;align-items:center;gap:8px;color:var(--text-subtle);font-size:.72rem;white-space:nowrap}.identity-status i{width:7px;height:7px;border-radius:50%;background:var(--h-emerald);box-shadow:0 0 0 5px rgba(57,189,139,.06)}
.harness-local-nav { position:sticky; top:62px; z-index:80; border-bottom:1px solid var(--h-card-border); background:color-mix(in srgb,var(--bg) 82%,transparent); backdrop-filter:blur(18px); }
html[data-theme="light"] .harness-local-nav { background:rgba(247,249,252,.86); }
.harness-local-nav__track { display:flex; gap:30px; overflow-x:auto; scrollbar-width:none; }
.harness-local-nav__track::-webkit-scrollbar{display:none}
.harness-local-nav a { position:relative; flex:none; padding:13px 0 12px; color:var(--text-subtle); font-size:.77rem; font-weight:600; }
.harness-local-nav a::after { content:""; position:absolute; left:0; right:0; bottom:-1px; height:2px; background:var(--h-cyan); transform:scaleX(0); transition:transform .25s ease; }
.harness-local-nav a.is-active { color:var(--text); }.harness-local-nav a.is-active::after{transform:scaleX(1)}


/* ==========================================================================
   Harness Public Marketing V5.1
   Rich technical presentation without exposing implementation recipes.
   ========================================================================== */

/* Hero public runtime ---------------------------------------------------- */
.runtime-summary{
    margin:16px 16px 10px;
    padding:14px 15px;
    border:1px solid var(--h-card-border);
    border-radius:12px;
    background:rgba(89,120,239,.025);
}
.runtime-summary__kicker{
    display:block;
    color:var(--h-cyan);
    font-family:"Courier New",monospace;
    font-size:.58rem;
    letter-spacing:.07em;
}
.runtime-summary p{
    margin-top:7px;
    color:var(--text-muted);
    font-size:.72rem;
    line-height:1.55;
}
.runtime-track--public{
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:7px;
    padding-top:5px;
}
.runtime-track--public .runtime-stage{
    display:block;
    min-height:98px;
    padding:12px 11px;
    border:1px solid var(--h-card-border);
    text-align:left;
    cursor:pointer;
    background:color-mix(in srgb,var(--bg-light) 93%,transparent);
}
.runtime-track--public .runtime-stage::before{display:none}
.runtime-track--public .runtime-stage span,
.runtime-track--public .runtime-stage strong,
.runtime-track--public .runtime-stage small{display:block}
.runtime-track--public .runtime-stage span{
    color:var(--h-blue-strong);
    font-size:.58rem;
}
.runtime-track--public .runtime-stage strong{
    margin-top:14px;
    color:var(--text);
    font-size:.76rem;
    line-height:1.25;
}
.runtime-track--public .runtime-stage small{
    margin-top:5px;
    color:var(--text-subtle);
    font-size:.57rem;
    line-height:1.35;
}
.runtime-track--public .runtime-stage:hover,
.runtime-track--public .runtime-stage:focus-visible,
.runtime-track--public .runtime-stage.is-active{
    outline:none;
    transform:translateY(-2px);
    border-color:rgba(37,190,201,.26);
    background:rgba(37,190,201,.045);
}
.runtime-console--public{
    min-height:100px;
}
.runtime-console--public > div{
    display:flex;
    justify-content:space-between;
    gap:18px;
    align-items:center;
}
.runtime-console--public span{
    color:var(--text-subtle);
    font-size:.56rem;
    letter-spacing:.08em;
}
.runtime-console--public strong{
    color:var(--text);
    font-size:.74rem;
    text-align:right;
}
.runtime-console--public p{
    margin-top:12px;
    color:var(--text-muted);
    font-family:inherit;
    font-size:.66rem;
    line-height:1.6;
}
.runtime-result{
    flex-wrap:wrap;
}
.runtime-result p{
    width:100%;
    margin-top:3px;
    color:var(--text-subtle);
    font-size:.61rem;
    line-height:1.5;
}

/* 01 · Where Harness Sits ----------------------------------------------- */
.workflow-section{
    background:
        radial-gradient(circle at 88% 26%,rgba(89,120,239,.045),transparent 25rem),
        linear-gradient(180deg,transparent,rgba(89,120,239,.018),transparent);
}
.position-shell{
    display:grid;
    grid-template-columns:minmax(0,1.25fr) minmax(310px,.75fr);
    gap:24px;
    align-items:stretch;
}
.position-stack{
    position:relative;
    padding:24px;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at 50% 45%,rgba(37,190,201,.05),transparent 28rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
}
.position-layer{
    display:grid;
    grid-template-columns:50px 1fr auto;
    gap:16px;
    align-items:center;
    min-height:130px;
    padding:18px 20px;
    border:1px solid var(--h-card-border);
    border-radius:16px;
    background:color-mix(in srgb,var(--bg-light) 94%,transparent);
    transition:.25s ease;
}
.position-layer:hover{
    transform:translateX(4px);
    border-color:rgba(37,190,201,.25);
}
.position-layer.is-focus{
    border-color:rgba(37,190,201,.30);
    background:
        linear-gradient(105deg,rgba(89,120,239,.055),rgba(37,190,201,.045)),
        color-mix(in srgb,var(--bg-light) 95%,transparent);
    box-shadow:0 22px 50px -40px rgba(37,190,201,.8);
}
.position-layer__index{
    display:grid;
    place-items:center;
    width:42px;height:42px;
    border:1px solid var(--h-card-border);
    border-radius:50%;
    color:var(--h-blue-strong);
    font-family:"Courier New",monospace;
    font-size:.65rem;
}
.position-layer.is-focus .position-layer__index{
    color:var(--h-cyan);
    border-color:rgba(37,190,201,.32);
    box-shadow:0 0 0 6px rgba(37,190,201,.05);
}
.position-layer span{
    color:var(--text-subtle);
    font-size:.58rem;
    letter-spacing:.09em;
    font-weight:700;
}
.position-layer h3{
    margin-top:5px;
    font-size:1.13rem;
}
.position-layer p{
    margin-top:6px;
    color:var(--text-muted);
    font-size:.75rem;
    line-height:1.6;
}
.position-layer em{
    color:var(--h-cyan);
    font-style:normal;
    font-family:"Courier New",monospace;
    font-size:.66rem;
}
.position-connector{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:12px;
    height:38px;
    color:var(--text-subtle);
    font-size:.61rem;
}
.position-connector i{
    position:relative;
    width:1px;height:28px;
    background:linear-gradient(var(--h-line),var(--h-cyan),var(--h-line));
}
.position-connector i::after{
    content:"";
    position:absolute;
    left:-2px;top:0;
    width:5px;height:5px;
    border-radius:50%;
    background:var(--h-cyan);
    box-shadow:0 0 9px rgba(37,190,201,.8);
    animation:hPublicVerticalSignal 2.7s linear infinite;
}
.position-value{
    padding:26px;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at 82% 10%,rgba(37,190,201,.075),transparent 17rem),
        color-mix(in srgb,var(--bg-light) 90%,transparent);
    box-shadow:var(--h-shadow);
}
.position-value__kicker{
    color:var(--h-cyan);
    font-family:"Courier New",monospace;
    font-size:.61rem;
    letter-spacing:.09em;
}
.position-value h3{
    margin-top:12px;
    font-size:1.45rem;
    line-height:1.35;
}
.position-value__rows{
    display:grid;
    gap:0;
    margin-top:26px;
    border-top:1px solid var(--h-card-border);
}
.position-value__rows > div{
    display:grid;
    grid-template-columns:30px 90px 1fr;
    gap:10px;
    padding:17px 0;
    border-bottom:1px solid var(--h-card-border);
    align-items:start;
}
.position-value__rows b{
    color:var(--h-blue-strong);
    font-family:"Courier New",monospace;
    font-size:.66rem;
}
.position-value__rows span{
    color:var(--text);
    font-size:.75rem;
    font-weight:700;
}
.position-value__rows p{
    color:var(--text-muted);
    font-size:.72rem;
    line-height:1.55;
}

/* 02 · Reliability Engine ----------------------------------------------- */
.loops-section{
    background:linear-gradient(180deg,rgba(37,190,201,.016),transparent 58%,rgba(89,120,239,.016));
}
.engine-shell{
    display:grid;
    grid-template-columns:minmax(0,1.2fr) minmax(340px,.8fr);
    gap:24px;
}
.engine-map{
    position:relative;
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:12px;
    min-height:360px;
    align-items:center;
    padding:48px 26px;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at 50% 50%,rgba(89,120,239,.07),transparent 27rem),
        color-mix(in srgb,var(--bg-light) 90%,transparent);
    box-shadow:var(--h-shadow);
}
.engine-line{
    position:absolute;
    left:10%;right:10%;
    top:50%;
    height:1px;
    background:linear-gradient(90deg,transparent,var(--h-blue),var(--h-cyan),transparent);
    opacity:.33;
}
.engine-line span{
    position:absolute;
    left:0;top:-3px;
    width:7px;height:7px;
    border-radius:50%;
    background:var(--h-cyan);
    box-shadow:0 0 12px rgba(37,190,201,.9);
    animation:hPublicEngineTravel 4.8s ease-in-out infinite;
}
.engine-node{
    position:relative;
    z-index:2;
    min-height:155px;
    padding:18px 16px;
    border:1px solid var(--h-card-border);
    border-radius:16px;
    background:color-mix(in srgb,var(--bg-light) 96%,transparent);
    color:var(--text);
    text-align:left;
    cursor:pointer;
    transition:.25s ease;
}
.engine-node small,
.engine-node strong,
.engine-node span{display:block}
.engine-node small{
    color:var(--h-blue-strong);
    font-family:"Courier New",monospace;
    font-size:.58rem;
}
.engine-node strong{
    margin-top:34px;
    font-size:.88rem;
    line-height:1.25;
}
.engine-node span{
    margin-top:7px;
    color:var(--text-subtle);
    font-size:.65rem;
    line-height:1.4;
}
.engine-node:hover,
.engine-node:focus-visible,
.engine-node.is-active{
    outline:none;
    transform:translateY(-5px);
    border-color:rgba(37,190,201,.34);
    background:
        linear-gradient(145deg,rgba(89,120,239,.055),rgba(37,190,201,.045)),
        var(--bg-light);
    box-shadow:0 22px 45px -36px rgba(37,190,201,.9);
}
.engine-node.is-active::after{
    content:"";
    position:absolute;
    left:18px;right:18px;bottom:0;
    height:2px;
    background:linear-gradient(90deg,transparent,var(--h-cyan),transparent);
}
.engine-detail{
    position:relative;
    min-height:360px;
    padding:28px;
    border:1px solid rgba(37,190,201,.17);
    border-radius:22px;
    background:
        radial-gradient(circle at 82% 12%,rgba(37,190,201,.08),transparent 18rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
}
.engine-detail__top{
    display:flex;
    justify-content:space-between;
    gap:16px;
    align-items:center;
}
.engine-detail__top span{
    color:var(--h-cyan);
    font-family:"Courier New",monospace;
    font-size:.61rem;
    letter-spacing:.07em;
}
.engine-detail__top em{
    color:var(--text-subtle);
    font-style:normal;
    font-size:.62rem;
}
.engine-detail h3{
    margin-top:38px;
    font-size:1.45rem;
    line-height:1.32;
}
.engine-detail > p{
    margin-top:13px;
    color:var(--text-muted);
    font-size:.82rem;
    line-height:1.72;
}
.engine-detail__signal{
    display:grid;
    grid-template-columns:auto 1fr auto 1fr auto;
    gap:8px;
    align-items:center;
    margin-top:32px;
    padding:14px;
    border:1px solid var(--h-card-border);
    border-radius:12px;
    background:rgba(89,120,239,.025);
}
.engine-detail__signal span,
.engine-detail__signal strong{
    font-family:"Courier New",monospace;
    font-size:.58rem;
    white-space:nowrap;
}
.engine-detail__signal span{color:var(--text-subtle)}
.engine-detail__signal strong{color:var(--h-cyan)}
.engine-detail__signal i{
    position:relative;
    height:1px;
    background:linear-gradient(90deg,var(--h-line),var(--h-cyan),var(--h-line));
}
.engine-detail__signal i::after{
    content:"";
    position:absolute;left:0;top:-2px;
    width:5px;height:5px;border-radius:50%;
    background:var(--h-cyan);
    animation:hPublicLineSignal 2.3s linear infinite;
}
.engine-detail__value{
    margin-top:22px;
    padding-top:18px;
    border-top:1px solid var(--h-card-border);
}
.engine-detail__value b{
    color:var(--h-blue-strong);
    font-size:.58rem;
    letter-spacing:.08em;
}
.engine-detail__value p{
    margin-top:8px;
    color:var(--text-muted);
    font-size:.73rem;
    line-height:1.6;
}

/* 03 · Scientific Computing & Verification ----------------------------- */
.science-section{
    background:
        radial-gradient(circle at 11% 28%,rgba(37,190,201,.045),transparent 25rem),
        linear-gradient(180deg,transparent,rgba(37,190,201,.018),transparent);
}
.science-shell{
    display:grid;
    grid-template-columns:minmax(260px,.78fr) minmax(245px,.62fr) minmax(350px,1fr);
    gap:18px;
    align-items:stretch;
}
.science-task,
.science-capabilities,
.science-console{
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
}
.science-task{padding:26px}
.science-task__bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    color:var(--text-subtle);
    font-size:.58rem;
    letter-spacing:.08em;
}
.science-task__bar i{
    width:7px;height:7px;border-radius:50%;
    background:var(--h-emerald);
    box-shadow:0 0 0 5px rgba(57,189,139,.06);
}
.science-task h3{
    margin-top:32px;
    font-size:1.35rem;
    line-height:1.4;
}
.science-task > p{
    margin-top:14px;
    color:var(--text-muted);
    font-size:.78rem;
    line-height:1.7;
}
.science-task__formula{
    display:grid;
    grid-template-columns:56px 1fr;
    gap:14px;
    align-items:center;
    margin-top:25px;
    padding:18px;
    border:1px solid rgba(37,190,201,.16);
    border-radius:14px;
    background:rgba(37,190,201,.03);
}
.science-task__formula span{
    display:grid;place-items:center;
    width:52px;height:52px;
    border:1px solid rgba(37,190,201,.22);
    border-radius:50%;
    color:var(--h-cyan);
    font-family:Georgia,"Times New Roman",serif;
    font-size:1.4rem;
}
.science-task__formula b{
    color:var(--text-muted);
    font-family:"Courier New",monospace;
    font-size:.66rem;
    line-height:1.5;
}
.science-task__note{
    display:grid;
    grid-template-columns:90px 1fr;
    gap:10px;
    margin-top:20px;
    padding-top:17px;
    border-top:1px solid var(--h-card-border);
}
.science-task__note strong{
    color:var(--h-blue-strong);
    font-size:.63rem;
}
.science-task__note span{
    color:var(--text-subtle);
    font-size:.68rem;
    line-height:1.5;
}
.science-capabilities{
    display:grid;
    gap:8px;
    padding:10px;
}
.science-capability{
    display:grid;
    grid-template-columns:42px 1fr 24px;
    gap:12px;
    align-items:center;
    min-height:110px;
    padding:15px;
    border:1px solid transparent;
    border-radius:14px;
    background:transparent;
    color:var(--text);
    text-align:left;
    cursor:pointer;
    transition:.24s ease;
}
.science-capability > span{
    display:grid;place-items:center;
    width:42px;height:42px;
    border:1px solid var(--h-card-border);
    border-radius:12px;
    color:var(--h-cyan);
    font-family:Georgia,"Times New Roman",serif;
}
.science-capability strong,
.science-capability small{display:block}
.science-capability strong{font-size:.8rem}
.science-capability small{
    margin-top:5px;
    color:var(--text-subtle);
    font-size:.61rem;
    line-height:1.35;
}
.science-capability em{
    color:var(--text-subtle);
    font-family:"Courier New",monospace;
    font-size:.58rem;
    font-style:normal;
}
.science-capability:hover,
.science-capability:focus-visible,
.science-capability.is-active{
    outline:none;
    border-color:rgba(37,190,201,.24);
    background:rgba(37,190,201,.04);
}
.science-capability.is-active > span{
    border-color:rgba(37,190,201,.3);
    box-shadow:0 0 0 5px rgba(37,190,201,.045);
}
.science-console{
    position:relative;
    overflow:hidden;
    padding:26px;
    background:
        radial-gradient(circle at 86% 9%,rgba(89,120,239,.075),transparent 19rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
}
.science-console::before{
    content:"";
    position:absolute;
    inset:0 0 auto;
    height:2px;
    background:linear-gradient(90deg,transparent,var(--h-cyan),transparent);
    opacity:.65;
}
.science-console__top{
    display:flex;
    justify-content:space-between;
    gap:16px;
}
.science-console__top span{
    color:var(--text-subtle);
    font-family:"Courier New",monospace;
    font-size:.58rem;
    letter-spacing:.08em;
}
.science-console__top b{
    color:var(--h-emerald);
    font-family:"Courier New",monospace;
    font-size:.66rem;
}
.science-console h3{
    margin-top:34px;
    font-size:1.32rem;
    line-height:1.35;
}
.science-console > p{
    margin-top:12px;
    color:var(--text-muted);
    font-size:.78rem;
    line-height:1.68;
}
.science-checklist{
    margin-top:26px;
    border-top:1px solid var(--h-card-border);
}
.science-checklist > div{
    display:flex;
    justify-content:space-between;
    gap:16px;
    padding:14px 0;
    border-bottom:1px solid var(--h-card-border);
}
.science-checklist span{
    color:var(--text-subtle);
    font-size:.7rem;
}
.science-checklist b{
    color:var(--h-emerald);
    font-family:"Courier New",monospace;
    font-size:.65rem;
}
.science-console__trace{
    display:grid;
    grid-template-columns:auto 1fr auto 1fr auto;
    gap:8px;
    align-items:center;
    margin-top:24px;
    color:var(--text-subtle);
    font-family:"Courier New",monospace;
    font-size:.56rem;
}
.science-console__trace i{
    position:relative;
    height:1px;
    background:linear-gradient(90deg,var(--h-line),var(--h-cyan),var(--h-line));
}
.science-console__trace i::after{
    content:"";
    position:absolute;left:0;top:-2px;
    width:5px;height:5px;border-radius:50%;
    background:var(--h-cyan);
    animation:hPublicLineSignal 2.4s linear infinite;
}

/* 04 · Know What You Can Trust ------------------------------------------ */
.states-section{
    background:linear-gradient(180deg,rgba(89,120,239,.018),transparent 62%);
}
.trust-shell{
    display:grid;
    grid-template-columns:minmax(300px,.7fr) minmax(0,1.3fr);
    gap:24px;
}
.trust-cases{
    display:grid;
    gap:10px;
}
.trust-case{
    display:grid;
    grid-template-columns:10px 1fr;
    gap:14px;
    align-items:center;
    padding:18px;
    border:1px solid var(--h-card-border);
    border-radius:15px;
    background:color-mix(in srgb,var(--bg-light) 88%,transparent);
    color:var(--text);
    text-align:left;
    cursor:pointer;
    transition:.24s ease;
}
.trust-case i{
    width:9px;height:9px;border-radius:50%;
    background:var(--text-subtle);
    box-shadow:0 0 0 5px rgba(128,153,190,.04);
}
.trust-case span,
.trust-case strong,
.trust-case small{display:block}
.trust-case span{
    color:var(--text-subtle);
    font-size:.56rem;
    letter-spacing:.08em;
}
.trust-case strong{
    margin-top:6px;
    font-size:.86rem;
}
.trust-case small{
    margin-top:5px;
    color:var(--text-subtle);
    font-size:.63rem;
    line-height:1.4;
}
.trust-case:hover,
.trust-case:focus-visible,
.trust-case.is-active{
    outline:none;
    transform:translateX(4px);
    border-color:rgba(37,190,201,.27);
    background:rgba(37,190,201,.035);
}
.trust-case.is-active i{
    background:var(--h-emerald);
    box-shadow:0 0 0 5px rgba(57,189,139,.06);
}
.trust-console{
    position:relative;
    overflow:hidden;
    min-height:390px;
    border:1px solid rgba(57,189,139,.20);
    border-radius:22px;
    background:
        radial-gradient(circle at 86% 10%,rgba(57,189,139,.07),transparent 19rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
    --trust-accent:var(--h-emerald);
}
.trust-console--clarify{--trust-accent:var(--h-cyan)}
.trust-console--limited{--trust-accent:var(--h-amber)}
.trust-console::before{
    content:"";
    position:absolute;
    inset:0 0 auto;
    height:2px;
    background:linear-gradient(90deg,transparent,var(--trust-accent),transparent);
}
.trust-console__header{
    display:flex;
    justify-content:space-between;
    gap:16px;
    padding:18px 22px;
    border-bottom:1px solid var(--h-card-border);
}
.trust-console__header span{
    color:var(--text-subtle);
    font-size:.58rem;
    letter-spacing:.09em;
}
.trust-console__header strong{
    color:var(--trust-accent);
    font-family:"Courier New",monospace;
    font-size:.74rem;
}
.trust-console__body{
    display:grid;
    grid-template-columns:minmax(0,1.2fr) minmax(190px,.8fr);
    gap:22px;
    padding:27px 22px;
}
.trust-result > span{
    color:var(--trust-accent);
    font-family:"Courier New",monospace;
    font-size:.6rem;
    letter-spacing:.08em;
}
.trust-result h3{
    margin-top:12px;
    font-size:1.42rem;
    line-height:1.35;
}
.trust-result p{
    margin-top:12px;
    color:var(--text-muted);
    font-size:.8rem;
    line-height:1.68;
}
.trust-matrix{
    border:1px solid var(--h-card-border);
    border-radius:14px;
    overflow:hidden;
}
.trust-matrix > div{
    padding:14px;
    border-bottom:1px solid var(--h-card-border);
}
.trust-matrix > div:last-child{border-bottom:0}
.trust-matrix span,
.trust-matrix b{display:block}
.trust-matrix span{
    color:var(--text-subtle);
    font-size:.58rem;
    letter-spacing:.05em;
}
.trust-matrix b{
    margin-top:7px;
    color:var(--trust-accent);
    font-family:"Courier New",monospace;
    font-size:.66rem;
}
.trust-console__footer{
    display:flex;
    align-items:center;
    gap:10px;
    padding:15px 22px;
    border-top:1px solid var(--h-card-border);
    color:var(--text-subtle);
    font-size:.67rem;
}
.trust-console__footer i{
    width:7px;height:7px;border-radius:50%;
    background:var(--trust-accent);
    box-shadow:0 0 0 5px color-mix(in srgb,var(--trust-accent) 10%,transparent);
}

/* 05 · One Reliability Core -------------------------------------------- */
.interfaces-section{
    background:
        radial-gradient(circle at 15% 30%,rgba(89,120,239,.045),transparent 25rem),
        linear-gradient(180deg,transparent,rgba(89,120,239,.018),transparent);
}
.core-ecosystem{
    display:grid;
    grid-template-columns:minmax(430px,.95fr) minmax(0,1.05fr);
    gap:24px;
}
.core-orbit{
    position:relative;
    min-height:500px;
    overflow:hidden;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at center,rgba(37,190,201,.075),transparent 46%),
        radial-gradient(circle at center,rgba(89,120,239,.055),transparent 68%),
        color-mix(in srgb,var(--bg-light) 90%,transparent);
    box-shadow:var(--h-shadow);
}
.core-ring{
    position:absolute;
    left:50%;top:50%;
    border:1px solid var(--h-line);
    border-radius:50%;
    transform:translate(-50%,-50%);
}
.core-ring--a{width:300px;height:300px}
.core-ring--b{width:420px;height:420px;opacity:.5}
.core-center{
    position:absolute;
    left:50%;top:50%;
    transform:translate(-50%,-50%);
    width:190px;
    padding:24px 18px;
    border:1px solid rgba(37,190,201,.28);
    border-radius:18px;
    background:var(--bg-light);
    text-align:center;
    box-shadow:0 24px 50px -35px rgba(37,190,201,.8);
    z-index:3;
}
.core-center small,
.core-center strong,
.core-center span{display:block}
.core-center small{
    color:var(--text-subtle);
    font-size:.55rem;
    letter-spacing:.1em;
}
.core-center strong{
    margin-top:8px;
    font-size:.95rem;
}
.core-center span{
    margin-top:6px;
    color:var(--h-cyan);
    font-size:.58rem;
}
.core-node{
    position:absolute;
    z-index:4;
    width:135px;
    min-height:92px;
    padding:12px;
    border:1px solid var(--h-card-border);
    border-radius:15px;
    background:color-mix(in srgb,var(--bg-light) 95%,transparent);
    color:var(--text);
    text-align:left;
    cursor:pointer;
    transition:.24s ease;
}
.core-node > span,
.core-node strong,
.core-node small{display:block}
.core-node > span{
    color:var(--h-blue-strong);
    font-family:"Courier New",monospace;
    font-size:.56rem;
}
.core-node strong{
    margin-top:10px;
    font-size:.72rem;
    line-height:1.3;
}
.core-node small{
    margin-top:5px;
    color:var(--text-subtle);
    font-size:.58rem;
}
.core-node--product{left:50%;top:6%;transform:translateX(-50%)}
.core-node--api{right:4%;top:50%;transform:translateY(-50%)}
.core-node--web{left:50%;bottom:6%;transform:translateX(-50%)}
.core-node--dev{left:4%;top:50%;transform:translateY(-50%)}
.core-node:hover,
.core-node:focus-visible,
.core-node.is-active{
    outline:none;
    border-color:rgba(37,190,201,.34);
    box-shadow:0 16px 36px -28px rgba(37,190,201,.85);
}
.core-node.is-active > span{color:var(--h-cyan)}
.core-signal{
    position:absolute;
    width:7px;height:7px;
    border-radius:50%;
    background:var(--h-cyan);
    box-shadow:0 0 11px rgba(37,190,201,.9);
    z-index:2;
}
.core-signal--a{animation:hPublicOrbitSignalA 6s linear infinite}
.core-signal--b{animation:hPublicOrbitSignalB 7s linear infinite}
.core-preview{
    min-height:500px;
    padding:28px;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at 85% 10%,rgba(37,190,201,.07),transparent 20rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
}
.core-preview__top{
    display:flex;
    justify-content:space-between;
    gap:16px;
}
.core-preview__top span{
    color:var(--h-cyan);
    font-family:"Courier New",monospace;
    font-size:.61rem;
    letter-spacing:.08em;
}
.core-preview__top em{
    color:var(--h-emerald);
    font-style:normal;
    font-size:.61rem;
}
.core-preview h3{
    margin-top:48px;
    font-size:1.55rem;
    line-height:1.3;
}
.core-preview > p{
    margin-top:13px;
    color:var(--text-muted);
    font-size:.82rem;
    line-height:1.72;
}
.core-preview__flow{
    display:grid;
    grid-template-columns:auto 1fr auto 1fr auto;
    gap:8px;
    align-items:center;
    margin-top:34px;
    padding:16px;
    border:1px solid var(--h-card-border);
    border-radius:13px;
    background:rgba(89,120,239,.025);
}
.core-preview__flow span,
.core-preview__flow strong{
    font-family:"Courier New",monospace;
    font-size:.59rem;
    white-space:nowrap;
}
.core-preview__flow span{color:var(--text-subtle)}
.core-preview__flow strong{color:var(--h-cyan)}
.core-preview__flow i{
    position:relative;
    height:1px;
    background:linear-gradient(90deg,var(--h-line),var(--h-cyan),var(--h-line));
}
.core-preview__flow i::after{
    content:"";
    position:absolute;
    left:0;top:-2px;
    width:5px;height:5px;border-radius:50%;
    background:var(--h-cyan);
    animation:hPublicLineSignal 2.5s linear infinite;
}
.core-preview__benefits{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:9px;
    margin-top:28px;
}
.core-preview__benefits > div{
    padding:14px;
    border:1px solid var(--h-card-border);
    border-radius:12px;
}
.core-preview__benefits b,
.core-preview__benefits span{display:block}
.core-preview__benefits b{
    color:var(--text);
    font-size:.71rem;
}
.core-preview__benefits span{
    margin-top:5px;
    color:var(--text-subtle);
    font-size:.59rem;
    line-height:1.4;
}

/* 06 · Built for Professional AI --------------------------------------- */
.run-section{
    background:linear-gradient(180deg,rgba(37,190,201,.017),transparent);
}
.advantage-shell{
    display:grid;
    grid-template-columns:minmax(0,1.3fr) minmax(300px,.7fr);
    gap:24px;
}
.advantage-spectrum{
    border:1px solid var(--h-card-border);
    border-radius:22px;
    overflow:hidden;
    background:color-mix(in srgb,var(--bg-light) 90%,transparent);
    box-shadow:var(--h-shadow);
}
.advantage-axis{
    display:grid;
    grid-template-columns:auto 1fr auto;
    gap:14px;
    align-items:center;
    padding:17px 20px;
    border-bottom:1px solid var(--h-card-border);
    color:var(--text-subtle);
    font-size:.57rem;
    letter-spacing:.08em;
}
.advantage-axis i{
    position:relative;
    height:1px;
    background:linear-gradient(90deg,var(--h-blue),var(--h-cyan));
}
.advantage-axis i::after{
    content:"";
    position:absolute;right:0;top:-3px;
    width:7px;height:7px;border-radius:50%;
    background:var(--h-cyan);
    box-shadow:0 0 10px rgba(37,190,201,.8);
}
.advantage-row{
    display:grid;
    grid-template-columns:48px 1fr auto;
    gap:18px;
    align-items:center;
    min-height:130px;
    padding:20px;
    border-bottom:1px solid var(--h-card-border);
    transition:.22s ease;
}
.advantage-row:last-child{border-bottom:0}
.advantage-row:hover{background:rgba(37,190,201,.025)}
.advantage-row > b{
    display:grid;
    place-items:center;
    width:42px;height:42px;
    border:1px solid var(--h-card-border);
    border-radius:50%;
    color:var(--h-blue-strong);
    font-family:"Courier New",monospace;
    font-size:.62rem;
}
.advantage-row span{
    color:var(--h-cyan);
    font-size:.57rem;
    letter-spacing:.08em;
    font-weight:700;
}
.advantage-row h3{
    margin-top:5px;
    font-size:1.02rem;
}
.advantage-row p{
    margin-top:6px;
    color:var(--text-muted);
    font-size:.72rem;
    line-height:1.58;
}
.advantage-row em{
    color:var(--text-subtle);
    font-family:"Courier New",monospace;
    font-style:normal;
    font-size:.62rem;
}
.advantage-summary{
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:flex-start;
    gap:16px;
    min-height:100%;
    padding:34px;
    border:1px solid var(--h-card-border);
    border-radius:22px;
    background:
        radial-gradient(circle at 82% 12%,rgba(89,120,239,.09),transparent 19rem),
        radial-gradient(circle at 18% 88%,rgba(37,190,201,.055),transparent 18rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
    box-shadow:var(--h-shadow);
}
.advantage-summary > span{
    color:var(--h-cyan);
    font-size:.6rem;
    letter-spacing:.09em;
}
.advantage-summary strong{
    font-size:1.12rem;
}
.advantage-summary i{
    color:var(--text-subtle);
    font-size:1.1rem;
    font-style:normal;
}
.advantage-summary b{
    margin-top:8px;
    padding:14px 16px;
    border:1px solid rgba(37,190,201,.22);
    border-radius:13px;
    background:rgba(37,190,201,.04);
    color:var(--h-cyan);
    font-size:1.2rem;
    line-height:1.3;
}

/* Motion --------------------------------------------------------------- */
@keyframes hOrbit{0%,100%{transform:rotate(-13deg) translate3d(0,0,0)}50%{transform:rotate(-10deg) translate3d(12px,-7px,0)}}
@keyframes hCodeFloat{0%,100%{transform:translateY(0);opacity:.13}50%{transform:translateY(-8px);opacity:.22}}
@keyframes hPulse{0%,100%{opacity:.55;transform:scale(.9)}50%{opacity:1;transform:scale(1.12)}}
@keyframes hPublicVerticalSignal{0%{top:0;opacity:0}15%{opacity:1}85%{opacity:1}100%{top:100%;opacity:0}}
@keyframes hPublicEngineTravel{0%{left:0;opacity:0}12%{opacity:1}88%{opacity:1}100%{left:100%;opacity:0}}
@keyframes hPublicLineSignal{0%{left:0;opacity:0}15%{opacity:1}85%{opacity:1}100%{left:100%;opacity:0}}
@keyframes hPublicOrbitSignalA{
    0%{left:50%;top:12%;opacity:0}
    18%{opacity:1}
    50%{left:88%;top:50%;opacity:1}
    82%{left:50%;top:88%;opacity:1}
    100%{left:50%;top:88%;opacity:0}
}
@keyframes hPublicOrbitSignalB{
    0%{left:12%;top:50%;opacity:0}
    18%{opacity:1}
    50%{left:50%;top:12%;opacity:1}
    82%{left:88%;top:50%;opacity:1}
    100%{left:88%;top:50%;opacity:0}
}

/* Responsive ----------------------------------------------------------- */
@media (max-width:1080px){
    .harness-hero__layout{grid-template-columns:1fr;gap:48px}
    .runtime-demo{max-width:800px;margin:0 auto;width:100%}
    .harness-hero__copy{text-align:center}
    .harness-hero__lead{margin-left:auto;margin-right:auto}
    .harness-hero__metrics{max-width:780px;margin-left:auto;margin-right:auto}
    .identity-strip{grid-template-columns:1fr}
    .identity-status{white-space:normal}
    .position-shell,.engine-shell,.science-shell,.trust-shell,.core-ecosystem,.advantage-shell{grid-template-columns:1fr}
    .science-shell{grid-template-columns:1fr 1fr}
    .science-console{grid-column:1/-1}
    .core-orbit{min-height:520px}
    .core-preview{min-height:auto}
    .advantage-summary{min-height:330px}
}
@media (max-width:760px){
    .harness-v1{--h-section-gap:88px}
    .harness-hero{padding-top:118px}
    .harness-hero__copy h1{font-size:clamp(2.4rem,11vw,3.5rem)}
    .harness-hero__metrics{grid-template-columns:repeat(2,1fr)}
    .runtime-window__bar{grid-template-columns:1fr auto auto}
    .runtime-track--public{grid-template-columns:1fr 1fr}
    .harness-local-nav{top:58px}
    .harness-local-nav__track{gap:22px}
    .position-layer{grid-template-columns:44px 1fr}
    .position-layer em{display:none}
    .position-value__rows > div{grid-template-columns:28px 84px 1fr}
    .engine-map{grid-template-columns:1fr 1fr;min-height:auto}
    .engine-line{display:none}
    .engine-node{min-height:135px}
    .science-shell{grid-template-columns:1fr}
    .science-console{grid-column:auto}
    .trust-console__body{grid-template-columns:1fr}
    .core-orbit{min-height:540px}
    .core-ring--b{width:390px;height:390px}
    .core-preview__benefits{grid-template-columns:1fr}
    .harness-cta-card{padding:36px 24px}
    .harness-cta-card .cta-actions{justify-content:center}
}
@media (max-width:520px){
    .harness-hero__metrics{grid-template-columns:1fr 1fr}
    .runtime-track--public{grid-template-columns:1fr}
    .runtime-console--public > div{display:block}
    .runtime-console--public strong{display:block;margin-top:7px;text-align:left}
    .position-value__rows > div{grid-template-columns:28px 1fr}
    .position-value__rows p{grid-column:2}
    .engine-map{grid-template-columns:1fr}
    .engine-detail__signal,.science-console__trace,.core-preview__flow{grid-template-columns:1fr}
    .engine-detail__signal i,.science-console__trace i,.core-preview__flow i{display:none}
    .science-task__formula{grid-template-columns:1fr;text-align:center}
    .science-task__formula span{margin:0 auto}
    .trust-case{padding:15px}
    .core-ring{display:none}
    .core-center{top:45%;width:165px}
    .core-node{width:112px}
    .core-node--product{top:5%}
    .core-node--web{bottom:5%}
    .core-node--api{right:2%}
    .core-node--dev{left:2%}
    .advantage-row{grid-template-columns:42px 1fr}
    .advantage-row em{display:none}
}
@media (prefers-reduced-motion:reduce){
    .harness-v1 *, .harness-v1 *::before, .harness-v1 *::after{
        scroll-behavior:auto !important;
        animation-duration:.001ms !important;
        animation-iteration-count:1 !important;
    }
    .runtime-demo{transform:none !important}
}
/* Footer CTA */
.harness-footer-cta{padding:40px 0 110px}.harness-cta-card{position:relative;overflow:hidden;padding:64px;border:1px solid var(--h-card-border);border-radius:26px;background:radial-gradient(circle at 82% 20%,rgba(89,120,239,.11),transparent 24rem),radial-gradient(circle at 18% 80%,rgba(37,190,201,.07),transparent 22rem),color-mix(in srgb,var(--bg-light) 91%,transparent);box-shadow:var(--h-shadow)}.harness-cta-card::after{content:"";position:absolute;inset:auto 0 0;height:1px;background:linear-gradient(90deg,transparent,var(--h-line-strong),transparent)}.harness-cta-code{display:block;font-family:"Courier New",monospace;font-size:.66rem;letter-spacing:.08em;color:var(--h-cyan)}.harness-cta-card h2{margin-top:14px;max-width:820px;font-size:clamp(2rem,4vw,3.4rem);line-height:1.12;letter-spacing:-.035em}.harness-cta-card>p{margin-top:18px;max-width:760px;color:var(--text-muted);line-height:1.75}.harness-cta-card .cta-actions{justify-content:flex-start;margin-top:30px}

/* ==========================================================================
   Harness V1.1 · Top-right theme / GitHub alignment
   ========================================================================== */
.harness-v1 .nav-links > li:has(.theme-toggle),
.harness-v1 .nav-links > li:has(.nav-cta--github) {
    display: flex;
    align-items: center;
}

.harness-v1 .theme-toggle {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

html[data-theme="dark"] .harness-v1 .nav-cta--github {
    background: linear-gradient(112deg, #4b67df 0%, #1599aa 100%) !important;
}

@media (max-width: 768px) {
    .harness-v1 .nav-links > li:has(.theme-toggle),
    .harness-v1 .nav-links > li:has(.nav-cta--github) {
        width: auto;
    }
}


/* ==========================================================================
   Harness V2 Ambient Upgrade · Reliability Field
   ========================================================================== */
.harness-v1 {
    --subpage-ambient-a: rgba(55, 100, 229, .12);
    --subpage-ambient-b: rgba(19, 178, 193, .115);
    --subpage-ambient-c: rgba(46, 189, 139, .055);
    --subpage-ambient-line: rgba(23, 175, 194, .23);
    --subpage-ambient-particle: rgba(22, 172, 190, .95);
}

html[data-theme="light"] .harness-v1 {
    background:
        radial-gradient(circle at 12% 8%, rgba(54, 93, 215, .06), transparent 31rem),
        radial-gradient(circle at 86% 38%, rgba(13, 144, 156, .055), transparent 31rem),
        #f3f7fb;
}

html[data-theme="light"] .harness-v1 .harness-hero {
    background:
        radial-gradient(circle at 77% 22%, rgba(51,91,215,.12), transparent 33rem),
        radial-gradient(circle at 17% 72%, rgba(13,144,156,.085), transparent 30rem),
        radial-gradient(circle at 55% 100%, rgba(57,189,139,.035), transparent 28rem),
        linear-gradient(180deg, rgba(252,253,255,.82) 0%, rgba(242,247,252,.76) 100%);
}

html[data-theme="light"] .harness-v1 .harness-field-grid {
    opacity: .36;
}

html[data-theme="light"] .harness-v1 .harness-field-orbit {
    opacity: .19;
}

html[data-theme="light"] .harness-v1 .harness-field-code {
    opacity: .25;
}

.harness-v1 .harness-hero__field::before {
    content: "";
    position: absolute;
    inset: 12% 3% 10%;
    background:
        linear-gradient(116deg, transparent 14%, rgba(37,190,201,.055) 14.2%, transparent 14.5%),
        linear-gradient(116deg, transparent 42%, rgba(89,120,239,.06) 42.2%, transparent 42.5%),
        linear-gradient(116deg, transparent 69%, rgba(37,190,201,.045) 69.2%, transparent 69.5%);
    opacity: .8;
}

.harness-v1 .harness-hero__field::after {
    content: "";
    position: absolute;
    left: 3%;
    top: 58%;
    width: 58%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(37,190,201,.25), rgba(89,120,239,.14), transparent);
    transform: rotate(-5deg);
    opacity: .7;
    box-shadow:
        280px -178px 0 rgba(37,190,201,.06),
        480px 118px 0 rgba(89,120,239,.05);
}

.harness-v1 .runtime-demo::after {
    content: "";
    position: absolute;
    inset: 8% 2% -7%;
    z-index: -2;
    border-radius: 44%;
    background:
        radial-gradient(circle at 54% 36%, rgba(37,190,201,.19), transparent 53%),
        radial-gradient(circle at 40% 58%, rgba(89,120,239,.12), transparent 66%);
    filter: blur(32px);
    opacity: .72;
    pointer-events: none;
}

html[data-theme="light"] .harness-v1 .runtime-window {
    box-shadow:
        0 36px 82px -48px rgba(32,61,103,.30),
        0 0 0 1px rgba(36, 137, 181, .025),
        0 18px 60px -52px rgba(13,144,156,.55);
}


/* Public Harness footer CTA refinement */
.harness-v1 .harness-cta-card{
    background:
        radial-gradient(circle at 82% 20%,rgba(89,120,239,.11),transparent 24rem),
        radial-gradient(circle at 18% 80%,rgba(37,190,201,.07),transparent 22rem),
        color-mix(in srgb,var(--bg-light) 91%,transparent);
}


/* V5.1 runtime / trust refinements */
.harness-v1 .runtime-window__bar{
    grid-template-columns:minmax(0,1fr) auto auto;
}
.harness-v1 .runtime-window__bar > span{
    overflow:hidden;
    text-overflow:ellipsis;
    white-space:nowrap;
}
.harness-v1 .trust-console--clarify{
    border-color:rgba(37,190,201,.20);
}
.harness-v1 .trust-console--limited{
    border-color:rgba(216,161,75,.20);
}


/* ==========================================================================
   V5.2 · Interactive local navigation fix
   ========================================================================== */
.harness-v1 .harness-local-nav{
    position:sticky;
    top:62px;
    z-index:990;
    isolation:isolate;
    pointer-events:auto;
    box-shadow:0 12px 30px -28px rgba(0,0,0,.55);
}
.harness-v1 .harness-local-nav .container,
.harness-v1 .harness-local-nav__track,
.harness-v1 .harness-local-nav a{
    position:relative;
    z-index:2;
    pointer-events:auto;
}
.harness-v1 .harness-section{
    scroll-margin-top:118px;
}
@media (max-width:760px){
    .harness-v1 .harness-local-nav{top:58px}
    .harness-v1 .harness-section{scroll-margin-top:112px}
}