:root{
    --paper:#fff;
    --ink:#000;
    --hair:rgba(0,0,0,.08);
    --hair2:rgba(0,0,0,.14);

    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono","Courier New", monospace;

    --border:2px solid var(--ink);
    --border-1:1px solid var(--ink);

    --pad:18px;
    --gap:16px;
    --max:1450px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:var(--mono);
    letter-spacing:.1px;
    overflow-x:hidden;
}
::selection{background:#000; color:#fff}
a{color:inherit; text-decoration:none}
a:focus-visible, button:focus-visible{
    outline:2px solid #000;
    outline-offset:2px;
}

/* signature canvas */
.lens{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
}

/* subtle directory grid */
body::before{
    content:"";
    position:fixed;
    inset:0;
    z-index:1;
    pointer-events:none;
    background:
            linear-gradient(to right, rgba(0,0,0,.04) 1px, transparent 1px),
            linear-gradient(to bottom, rgba(0,0,0,.03) 1px, transparent 1px);
    background-size: 102px 102px;
    opacity:.10;
    mix-blend-mode:multiply;
}

/* top nav */
.top-nav{
    position:fixed;
    left:0; top:0;
    width:100%;
    z-index:70;
    background:rgba(255,255,255,.90);
    border-bottom:1px solid var(--hair2);
    backdrop-filter: blur(3px);
}
.top-nav .row{
    max-width:var(--max);
    margin:0 auto;
    padding:10px var(--pad);
    display:flex;
    gap:10px;
    align-items:center;
}
.spacer{flex:1}

/* buttons */
.btn, .nav-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    padding:10px 14px;
    border:var(--border);
    background:rgba(255,255,255,.75);
    cursor:pointer;
    text-transform:uppercase;
    letter-spacing:.7px;
    font-size:12px;
    line-height:1;
    transition: transform .12s ease, background .12s ease;
    user-select:none;
}
.btn:hover{background:#fff; transform: translateY(-1px)}
.btn:active{transform: translateY(0)}
.btn.ghost{background:transparent}
.btn.wide{width:100%}
button.btn{font-family:var(--mono); color:inherit}

/* pills */
.pill{
    display:inline-flex;
    align-items:center;
    padding:6px 10px;
    border:var(--border-1);
    border-radius:999px;
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:1px;
    background:rgba(255,255,255,.65);
}
.pill.dim{
    border-color:rgba(0,0,0,.35);
    color:rgba(0,0,0,.65);
}

.code{
    display:inline-flex;
    padding:6px 10px;
    border:1px solid rgba(0,0,0,.25);
    background:rgba(0,0,0,.03);
    letter-spacing:1px;
    text-transform:uppercase;
    font-size:12px;
}

/* layout */
.page{
    position:relative;
    z-index:10;
    padding: calc(56px + var(--pad)) var(--pad) var(--pad);
}
.wrap{
    max-width:var(--max);
    margin:0 auto;
    display:grid;
    grid-template-columns: 1.65fr 1fr;
    gap: var(--gap);
}
@media (max-width: 1100px){
    .wrap{grid-template-columns:1fr}
}

/* panels */
.panel{
    border:var(--border);
    background:rgba(255,255,255,.92);
}
.panel-title{
    display:flex;
    gap:10px;
    align-items:center;
    padding:12px 14px;
    border-bottom:1px solid var(--hair2);
    text-transform:uppercase;
    letter-spacing:1px;
    font-size:12px;
}
.panel-title .title{font-weight:800}
.panel-body{padding:14px}

.panel.inset{
    border:2px solid #000;
    background:rgba(255,255,255,.90);
}

.hr{height:0; border-top:1px solid var(--hair2); margin:14px 0}
.hr.faint{border-top:1px solid var(--hair)}

.muted{color:rgba(0,0,0,.68)}
.strong{font-weight:800}
.micro{font-size:11px; letter-spacing:.2px; margin-top:10px}

.kicker{
    text-transform:uppercase;
    letter-spacing:1px;
    font-size:11px;
    color:rgba(0,0,0,.68);
}
.headline{margin:10px 0 6px; font-size:26px; line-height:1.15}
.subhead{margin:0; font-size:13px; line-height:1.65; color:rgba(0,0,0,.78)}
p{margin:0 0 10px; font-size:12.8px; line-height:1.78}

/* clarity lines */
.clarity{
    display:grid;
    gap:6px;
    padding:10px 12px;
    border:1px solid rgba(0,0,0,.18);
    background:rgba(0,0,0,.02);
}
.line{
    font-size:13px;
    letter-spacing:.4px;
    text-transform:uppercase;
    opacity:0;
}

/* lists */
.list{
    margin:0;
    padding-left:18px;
    display:grid;
    gap:6px;
}
.list li{font-size:12.8px; line-height:1.7}

/* doc grid */
.docgrid{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--gap);
}
@media (max-width: 900px){
    .docgrid{grid-template-columns:1fr}
}
.doccard{
    border:2px solid #000;
    background:rgba(255,255,255,.9);
    padding:12px;
}
.dochead{
    font-weight:800;
    text-transform:uppercase;
    letter-spacing:1px;
    margin-bottom:6px;
}
.docbody{font-size:12.6px; line-height:1.7}

/* path */
.pathline{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    padding:10px 12px;
    border:1px dashed rgba(0,0,0,.35);
    background:rgba(255,255,255,.82);
}
.node{
    border:2px solid #000;
    padding:8px 10px;
    text-transform:uppercase;
    letter-spacing:1px;
    font-size:11.5px;
    background:rgba(255,255,255,.9);
}
.arrow{
    font-weight:800;
    letter-spacing:2px;
}
.path-actions{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-top:10px;
}

/* mono block */
.mono{
    border-left:2px solid rgba(0,0,0,.45);
    padding:10px 12px;
    background:rgba(0,0,0,.03);
    line-height:1.85;
}

/* meta */
.meta{
    display:flex;
    gap:10px;
    align-items:center;
    flex-wrap:wrap;
}

/* actions */
.actions{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    margin-top:14px;
}

/* side */
.side{display:grid; gap: var(--gap)}
.console{
    position:sticky;
    top: calc(56px + var(--pad));
    height: fit-content;
}
@media (max-width:1100px){
    .console{position:relative; top:auto}
}
.statusGrid{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:10px;
}
.kv{
    border:1px solid rgba(0,0,0,.22);
    background:rgba(255,255,255,.78);
    padding:10px;
}
.kv .k{
    font-weight:800;
    letter-spacing:1px;
    text-transform:uppercase;
    font-size:11px;
}
.kv .v{
    margin-top:6px;
    font-size:11.5px;
    letter-spacing:.8px;
    text-transform:uppercase;
    color:rgba(0,0,0,.72);
}
.btnrow{display:flex; gap:10px; flex-wrap:wrap}
.navgrid{display:grid; gap:10px}

/* slider */
.slider{
    display:grid;
    gap:8px;
    border:1px solid rgba(0,0,0,.18);
    padding:10px;
    background:rgba(255,255,255,.82);
}
.slider .label{
    text-transform:uppercase;
    letter-spacing:1px;
    font-size:11px;
    font-weight:800;
}
.slider input[type="range"]{width:100%}
.slider .val{
    font-size:11px;
    text-transform:uppercase;
    letter-spacing:1px;
    color:rgba(0,0,0,.72);
}

/* toast */
.toast{
    position:fixed;
    left:50%;
    bottom:18px;
    transform:translateX(-50%);
    z-index:110;
    border:2px solid #000;
    background:rgba(255,255,255,.92);
    padding:10px 12px;
    font-size:11px;
    letter-spacing:1px;
    text-transform:uppercase;
    opacity:0;
    pointer-events:none;
    transition: opacity .15s ease, transform .15s ease;
    max-width:min(980px, calc(100vw - 28px));
}
.toast.show{
    opacity:1;
    transform:translateX(-50%) translateY(-2px);
}

@media (prefers-reduced-motion: reduce){
    .btn{transition:none !important}
}