: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);

    --r:0px;
    --pad:18px;
    --gap:14px;
    --max:1120px;

    --shadow: 0 0 0 1px rgba(0,0,0,.02);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:var(--mono);
    letter-spacing:.1px;
}

::selection{background:var(--ink); color:var(--paper)}
a{color:inherit; text-decoration:none}
a:focus-visible, button:focus-visible{
    outline:2px solid var(--ink);
    outline-offset:2px;
}

/* grid + scan (subtle) */
body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:1;
    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: 56px 56px;
    opacity:.30;
    mix-blend-mode:multiply;
}

body::after{
    content:"";
    position:fixed;
    inset:-35%;
    pointer-events:none;
    z-index:2;
    background: linear-gradient(
            to bottom,
            transparent 0%,
            rgba(0,0,0,.05) 50%,
            transparent 100%
    );
    opacity:.20;
    transform: translateY(-46%);
    animation: scan 13.8s linear infinite;
}

@keyframes scan{
    0%{transform: translateY(-46%)}
    100%{transform: translateY(46%)}
}

/* FX layer */
.fx{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
}
.fx canvas{display:block; width:100%; height:100%}

/* layout */
.page{
    position:relative;
    min-height:100%;
    padding: calc(56px + var(--pad)) var(--pad) var(--pad);
    z-index:5;
}
.layer{position:relative; z-index:5}
.container{
    max-width:var(--max);
    margin:0 auto;
}

/* top nav */
.top-nav{
    position:fixed;
    left:0; top:0;
    width:100%;
    z-index:50;
    background:rgba(255,255,255,.92);
    border-bottom:1px solid var(--hair2);
    backdrop-filter: blur(2px);
}
.top-nav .row{
    display:flex;
    gap:10px;
    align-items:center;
    padding:10px var(--pad);
    max-width:var(--max);
    margin:0 auto;
}
.top-nav .spacer{flex:1}

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

/* panel / pill */
.panel{
    border:var(--border);
    border-radius:var(--r);
    background:rgba(255,255,255,.92);
    box-shadow: var(--shadow);
}
.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-title.small{
    padding:10px 12px;
    font-size:11px;
}
.panel-body{padding:14px}
.panel-body.small{padding:12px}

.pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 10px;
    border:var(--border-1);
    border-radius:999px;
    font-size:11px;
    letter-spacing:1px;
    text-transform:uppercase;
    background:rgba(255,255,255,.7);
}
.pill.dim{
    border-color:rgba(0,0,0,.35);
    color:rgba(0,0,0,.65);
}

.hero{margin-bottom: var(--pad)}
.inset{background:rgba(255,255,255,.88)}

/* typography */
.hr{
    height:0;
    border-top:1px solid var(--hair2);
    margin:16px 0;
}
.hr.faint{border-top:1px solid var(--hair);}

.kicker{
    text-transform:uppercase;
    letter-spacing:1px;
    font-size:11px;
    color:rgba(0,0,0,.68);
}
.headline{
    margin:10px 0 6px;
    font-size:26px;
    letter-spacing:.2px;
    line-height:1.15;
}
.subhead{
    margin:0;
    max-width: 74ch;
    font-size:13px;
    line-height:1.65;
    color:rgba(0,0,0,.78);
}

p{
    margin: 0 0 10px;
    font-size:12.5px;
    line-height:1.75;
}
.strong{font-weight:800}
.muted{color:rgba(0,0,0,.68)}

.mono-quote{
    border-left: 2px solid rgba(0,0,0,.45);
    padding: 10px 12px;
    background: rgba(0,0,0,.03);
    margin: 10px 0 12px;
    line-height:1.8;
}
.mono-quote.small{font-size:12px}

.micro{
    margin-top: 10px;
    font-size:11px;
    letter-spacing:.2px;
}

/* cards */
.cards{
    display:grid;
    grid-template-columns: repeat(2, minmax(0,1fr));
    gap: var(--gap);
    margin-top: 14px;
}
@media (max-width: 920px){
    .cards{grid-template-columns: 1fr;}
}

.card{
    border:var(--border);
    border-radius:var(--r);
    background:rgba(255,255,255,.88);
    padding:14px;
    transition: transform .12s ease, background .12s ease;
    cursor:pointer;
    user-select:none;
}
.card:hover{transform: translateY(-2px); background:#fff}
.card:active{transform: translateY(0)}

.card.on{
    background: rgba(0,0,0,.03);
}
.card-top{
    display:flex;
    gap:10px;
    align-items:flex-start;
    justify-content:space-between;
}
.card .num{
    font-weight:800;
    letter-spacing:1px;
    font-size:12px;
    text-transform:uppercase;
}
.card .name{
    font-weight:800;
    letter-spacing:1px;
    font-size:12px;
    text-transform:uppercase;
}
.card .hint{
    font-size:11px;
    letter-spacing:1px;
    text-transform:uppercase;
    color:rgba(0,0,0,.62);
    border:1px solid rgba(0,0,0,.25);
    padding:4px 8px;
    background:rgba(255,255,255,.75);
}
.card .desc{
    margin-top: 10px;
    font-size:12.5px;
    line-height:1.75;
    color:rgba(0,0,0,.80);
}
.card .lines{
    margin-top: 10px;
    border-top:1px solid rgba(0,0,0,.12);
    padding-top: 10px;
    display:grid;
    gap:6px;
}
.card .lines span{
    display:block;
    font-size:12px;
    color:rgba(0,0,0,.72);
}

/* list */
.spec{
    margin:0;
    padding-left: 18px;
}
.spec li{
    margin: 0 0 8px;
    font-size:12.5px;
    line-height:1.6;
}

/* pager / footer */
.pager{
    display:flex;
    gap:10px;
    flex-wrap:wrap;
    justify-content:space-between;
}

.foot{
    margin-top: var(--pad);
    padding-bottom: 10px;
}
.foot-row{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    justify-content:space-between;
    border-top:1px solid var(--hair2);
    padding-top: 12px;
}

/* corner index */
.corner-index{
    position:fixed;
    right:var(--pad);
    top:calc(56px + var(--pad));
    z-index:40;
    display:grid;
    grid-template-columns: repeat(3, 240px);
    gap:10px;
}
.corner-index .btn{
    width:100%;
    justify-content:flex-start;
    padding:10px 12px;
    font-size:11px;
}
@media (max-width: 980px){
    .corner-index{grid-template-columns: repeat(2, 220px);}
}
@media (max-width: 720px){
    .corner-index{
        position:static;
        margin: 0 0 var(--pad);
        grid-template-columns: 1fr;
    }
}

/* toast */
.toast{
    position:fixed;
    left:50%;
    bottom:18px;
    transform:translateX(-50%);
    z-index:80;
    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(820px, calc(100vw - 28px));
}
.toast.show{
    opacity:1;
    transform:translateX(-50%) translateY(-2px);
}

/* reduced motion */
@media (prefers-reduced-motion: reduce){
    body::after{animation:none !important; opacity:.12}
    .btn,.card{transition:none !important}
}