/* Palette taken from the NodeZero logo */
:root{
  --black:#000000;
  --beige:#B8AD97;      /* casing (dimmed for long use) */
  --beige-hi:#CBC1AD;   /* casing highlight */
  --beige-lo:#8C8270;   /* casing shade */
  --navy:#1A1F36;       /* pixel outline */
  --screen:#7FA34D;     /* CRT green (buttons, accents) */
  --screen-hi:#93B862;
  --crt-bg:#0F1A0C;     /* dark phosphor screen */
  --crt-ink:#9ACB63;    /* phosphor text */
  --text:#D9D2C3;
  --ink:#1F3A14;        /* text on screen */
  --led:#6FCF4B;
  --red:#E5533D;
  --muted:#9C9384;
  --px:4px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--black);color:var(--text)}
body{
  font-family:"IBM Plex Mono",monospace;font-size:15px;line-height:1.6;min-height:100vh;
  background-image:radial-gradient(#1a1a1a 1px,transparent 1px);background-size:16px 16px;
}
img{image-rendering:pixelated;display:block}
:focus-visible{outline:3px solid var(--screen);outline-offset:3px}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}

/* ---- pixel building blocks ---- */
.casing{
  background:var(--beige);color:var(--navy);
  border:var(--px) solid var(--navy);
  box-shadow:inset calc(var(--px)*1.5) calc(var(--px)*1.5) 0 var(--beige-hi),
             inset calc(var(--px)*-1.5) calc(var(--px)*-1.5) 0 var(--beige-lo);
}
.screen{
  background:var(--crt-bg);color:var(--crt-ink);
  border:var(--px) solid var(--navy);
  border-radius:14px;
  box-shadow:inset 0 0 0 var(--px) #22361A, inset 0 0 50px rgba(127,163,77,.12);
  text-shadow:0 0 6px rgba(154,203,99,.35);
  position:relative;overflow:hidden;
}
.screen::after{ /* scanlines + glare */
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(135deg,rgba(255,255,255,.04) 0 8%,transparent 8% 100%),
    repeating-linear-gradient(to bottom,rgba(0,0,0,.25) 0 2px,transparent 2px 4px);
}
.btn{
  font-family:"Silkscreen",monospace;font-size:15px;cursor:pointer;
  background:var(--screen);color:var(--ink);
  border:var(--px) solid var(--navy);padding:10px 20px;
  box-shadow:inset -4px -4px 0 #5F8A34, inset 4px 4px 0 var(--screen-hi);
}
.btn:hover{background:var(--screen-hi)}
.btn:active{box-shadow:inset 4px 4px 0 #5F8A34;transform:translateY(2px)}
.btn:disabled{background:#6b7a5a;color:#2b3424;cursor:not-allowed;box-shadow:none}
.btn.beige{background:var(--beige);color:var(--navy);box-shadow:inset -4px -4px 0 var(--beige-lo), inset 4px 4px 0 var(--beige-hi)}
.btn.red{background:var(--red);color:#fff;box-shadow:inset -4px -4px 0 #A23525, inset 4px 4px 0 #F07B66}

/* ---- header ---- */
header{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 0}
.brand{display:flex;align-items:center;gap:12px;font-family:"Silkscreen",monospace;font-size:22px;color:var(--text);text-decoration:none}
.brand img{width:46px;height:auto}
.ticker{font-family:"Silkscreen",monospace;font-size:13px;padding:4px 10px;background:var(--navy);color:var(--screen);border:2px solid var(--screen)}
.who{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted)}
.who b{color:var(--text)}
.who .btn{padding:8px 14px;font-size:14px;white-space:nowrap}
.head-left{display:flex;align-items:center;gap:14px}

/* ---- hero ---- */
.hero{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:48px 0 56px}
h1{font-family:"Silkscreen",monospace;font-weight:400;font-size:clamp(34px,5.4vw,60px);line-height:1.08;margin-bottom:18px}
.lead{color:var(--muted);max-width:44ch;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* the status monitor */
.monitor{max-width:440px;margin-left:auto;width:100%}
.monitor .casing{padding:22px 22px 18px}
.monitor .screen{padding:20px 22px;min-height:190px;display:flex;flex-direction:column;justify-content:space-between}
.scr-top{display:flex;justify-content:space-between;font-family:"VT323",monospace;font-size:20px;line-height:1}
.status{font-family:"VT323",monospace;font-size:clamp(54px,8vw,72px);line-height:.9;margin:14px 0 6px}
.status.busy{color:var(--red);text-shadow:0 0 6px rgba(229,83,61,.4)}
.status-sub{font-family:"VT323",monospace;font-size:22px;line-height:1.1;min-height:24px}
.blink::after{content:"_";animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.bezel-row{display:flex;justify-content:space-between;align-items:center;margin-top:16px;gap:12px}
.vents{display:flex;flex-direction:column;gap:4px}
.vents span{display:block;width:44px;height:5px;background:var(--navy);opacity:.75}
.led{width:16px;height:12px;border:3px solid var(--navy);background:var(--led);box-shadow:0 0 8px var(--led)}
.led.busy{background:var(--red);box-shadow:0 0 8px var(--red)}
.stand{width:34%;height:18px;margin:0 auto;background:var(--beige-lo);border:var(--px) solid var(--navy);border-top:0}
.base{width:62%;height:20px;margin:0 auto}
.monitor .btn{width:100%;margin-top:18px;font-size:16px;padding:14px}
.queue-note{font-size:13px;color:var(--muted);margin-top:10px;min-height:21px;text-align:center}

/* ---- how it works ---- */
.how{padding:8px 0 72px}
.btn.gold{background:#E0B341;color:var(--navy);box-shadow:inset -4px -4px 0 #A9831F, inset 4px 4px 0 #F2D27A;text-decoration:none}
.btn.gold:hover{background:#ECC456}
.btn.gold:active{box-shadow:inset 4px 4px 0 #A9831F}
.btn.gold:disabled{background:#6e6448;color:#2e2a1c;box-shadow:none}
a.ticker{text-decoration:none;cursor:pointer}
a.ticker:hover{background:var(--screen);color:var(--navy)}
.buy{scroll-margin-top:24px}
.ca-box{display:flex;align-items:center;gap:16px;background:var(--crt-bg);border:var(--px) solid #22361A;padding:18px 20px}
.ca-line{flex:1;min-width:0;font-family:"VT323",monospace;font-size:26px;color:var(--crt-ink);text-shadow:0 0 6px rgba(154,203,99,.35);word-break:break-all;line-height:1.15}
.ca-prompt{color:#E0B341;margin-right:10px}
.ca-text.soon{color:#E0B341}
.ca-cursor{animation:caBlink 1s steps(1) infinite}
@keyframes caBlink{50%{opacity:0}}
.ca-note{font-size:12px;color:var(--muted);margin-top:10px}
.ca-note a{color:var(--text)}
@media (max-width:480px){ .ca-box{flex-direction:column;align-items:stretch} .ca-line{font-size:22px} .ca-box .btn{width:100%} }
@media (prefers-reduced-motion: reduce){ .ca-cursor{animation:none} }
.how h2{font-family:"Silkscreen",monospace;font-weight:400;font-size:26px;margin-bottom:20px}
.rules{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.rule{border:var(--px) solid var(--beige-lo);padding:18px;background:#0d0d0d}
.rule h3{font-family:"VT323",monospace;font-weight:400;font-size:32px;line-height:1;color:var(--screen);margin-bottom:8px}
.rule p{font-size:13px;color:var(--muted)}

/* ---- session ---- */
#session{display:none;padding:4px 0 48px}
.sess-bar{display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center;margin-bottom:18px}
.clock{font-family:"VT323",monospace;font-size:22px;line-height:1;color:var(--crt-ink);flex-shrink:0}
.clock.low{color:var(--red)}
.clock-label{font-size:13px;color:var(--muted)}
.cells{display:flex;gap:2px;padding:0 14px;margin-top:6px;position:relative;z-index:1}
.cell{flex:1;height:5px;background:var(--crt-ink)}
.cell.used{background:#1d2d16}
.cell.low{background:var(--red)}
.term-casing{padding:18px}
.term-casing .screen{height:calc(100vh - 130px);height:calc(100dvh - 130px);min-height:440px;max-height:960px;display:flex;flex-direction:column}
.term-top{display:flex;justify-content:space-between;gap:12px;padding:8px 14px;border-bottom:3px solid #22361A;white-space:nowrap;overflow:hidden;font-family:"VT323",monospace;font-size:20px;line-height:1}
.term-body{flex:1;display:flex;flex-direction:column;min-height:0;position:relative;z-index:1}
.term-body iframe{flex:1;border:0;width:100%;background:#000}
.fake{flex:1;overflow-y:auto;padding:12px 16px;font-family:"VT323",monospace;font-size:22px;line-height:1.25}
.fake .dim{opacity:.65}
.fake-in{display:flex;gap:8px}
.fake-in input{flex:1;min-width:0;background:transparent;border:0;color:var(--crt-ink);font:inherit;outline:none;caret-color:var(--crt-ink)}
#termTitle{overflow:hidden;text-overflow:ellipsis}
.fake{word-break:break-all}
.term-foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:13px}
.sess-tip{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:14px;font-size:13px;color:var(--muted)}
.sess-tip b{color:var(--text)}

/* ---- modals ---- */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.85);display:none;align-items:center;justify-content:center;z-index:40;padding:20px}
.modal.show{display:flex}
.box{width:100%;max-width:400px;padding:26px}
.box h2{font-family:"Silkscreen",monospace;font-weight:400;font-size:24px;margin-bottom:4px}
.box p{font-size:13px;margin-bottom:16px;color:#2E2A22}
.box label{display:block;font-size:13px;font-weight:600;margin:12px 0 6px}
.box input{width:100%;background:#DDD5C4;border:3px solid var(--navy);color:var(--navy);padding:10px 12px;font:inherit}
.box input:focus{outline:3px solid var(--screen);outline-offset:0}
.box .row{display:flex;gap:10px;margin-top:20px}
.box .row .btn{flex:1}
.hint{font-size:12px;color:#4A443A;margin-top:4px}
.auth-switch{font-size:13px;margin-top:16px;color:#2E2A22;text-align:center}
.linkbtn{background:none;border:0;padding:0;font:inherit;font-weight:600;color:inherit;text-decoration:underline;cursor:pointer}
.linkbtn:focus-visible{outline:2px solid var(--screen);outline-offset:2px}
.demo-note{font-size:13px;color:#E0B341;border:2px dashed #E0B341;padding:8px 12px;margin:-12px 0 24px;max-width:44ch}
[hidden]{display:none!important}
.err{color:#A23525;font-size:13px;min-height:20px;margin-top:8px;font-weight:600}

.xlink{display:inline-flex;align-items:center;gap:6px;color:var(--text);text-decoration:none;border-bottom:1px solid var(--muted)}
.xlink:hover{color:var(--crt-ink);border-color:var(--crt-ink)}
.xlink:focus-visible{outline:2px solid var(--screen);outline-offset:3px}
footer{border-top:2px solid #222;padding:20px 0;font-size:12px;color:var(--muted);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}


/* ---- boot screen ---- */
#boot{position:fixed;inset:0;background:#000;z-index:100;padding:24px;font-family:"VT323",monospace;font-size:20px;line-height:1.3;color:var(--crt-ink);text-shadow:0 0 6px rgba(154,203,99,.4);overflow:hidden;cursor:pointer;transition:opacity .4s}
#boot.hide{opacity:0;pointer-events:none}
#boot .ok{color:var(--screen-hi)}
#boot .skip{position:absolute;right:20px;bottom:16px;color:var(--muted);font-size:16px}

/* ---- section heads ---- */
.sec{padding:0 0 64px}
.sec-head{display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.sec-head h2{font-family:"Silkscreen",monospace;font-weight:400;font-size:26px}
.sec-head .meta{font-family:"VT323",monospace;font-size:20px;color:var(--muted)}
.live{color:var(--crt-ink)}
.live::before{content:"";display:inline-block;width:8px;height:8px;background:var(--led);box-shadow:0 0 6px var(--led);margin-right:8px;vertical-align:middle;animation:blink 1.2s steps(1) infinite}

/* ---- telemetry ---- */
.telemetry{display:grid;grid-template-columns:1.2fr 1fr;gap:16px}
.panel{background:var(--crt-bg);border:var(--px) solid #22361A;padding:16px 18px;font-family:"VT323",monospace;color:var(--crt-ink);text-shadow:0 0 6px rgba(154,203,99,.3)}
.panel h3{font-weight:400;font-size:20px;color:var(--muted);text-shadow:none;margin-bottom:10px;display:flex;justify-content:space-between}
.meter{display:grid;grid-template-columns:52px 1fr 54px;align-items:center;gap:10px;font-size:22px;margin:8px 0}
.bar{display:flex;gap:2px;height:16px}
.bar i{flex:1;background:#1d2d16}
.bar i.on{background:var(--crt-ink);box-shadow:0 0 4px rgba(154,203,99,.5)}
.bar i.hot{background:#E0B341}
.bar i.crit{background:var(--red)}
.meter b{font-weight:400;text-align:right}
canvas#spark{width:100%;height:120px;display:block;image-rendering:pixelated;background:#0b1409;border:2px solid #22361A}
.readouts{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}
.readouts div{border:2px solid #22361A;padding:8px 10px}
.readouts small{display:block;font-size:16px;color:var(--muted);text-shadow:none;line-height:1}
.readouts span{font-size:26px;line-height:1.1}

/* ---- log feed ---- */
.log{height:248px;overflow:hidden;font-size:20px;line-height:1.3;display:flex;flex-direction:column;justify-content:flex-end}
.log div{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.log .t{color:var(--muted);text-shadow:none}
.log .warn{color:#E0B341}
.log .err{color:var(--red)}

/* ---- node grid ---- */
.grid-wrap{border:var(--px) solid var(--beige-lo);background:#0b0b0b;padding:18px}
.nodes{display:grid;grid-template-columns:repeat(10,1fr);gap:8px}
.regions{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}
.reg{background:var(--crt-bg);border:var(--px) solid #22361A;padding:12px 14px;font-family:"VT323",monospace;color:var(--crt-ink);text-shadow:0 0 6px rgba(154,203,99,.3);line-height:1.15}
.reg.off{color:#6d7a62;text-shadow:none;border-color:#1f1f1f;background:#0b0b0b}
.reg-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.cc{font-family:"Silkscreen",monospace;font-size:13px;background:var(--navy);color:var(--crt-ink);border:2px solid currentColor;padding:1px 6px;text-shadow:none}
.reg.off .cc{color:#55604c}
.reg .country{font-size:24px}
.reg .city{font-size:18px;opacity:.7}
.reg .rbar{display:flex;gap:2px;margin:8px 0 6px}
.reg .rbar i{flex:1;height:6px;background:#1d2d16}
.reg .rbar i.on{background:var(--crt-ink)}
.reg .rbar i.busy{background:var(--red)}
.reg.off .rbar i{background:#1a1a1a}
.reg .rmeta{display:flex;justify-content:space-between;font-size:18px}
.occupant{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;background:var(--crt-bg);border:var(--px) solid #22361A;padding:12px 16px;margin-bottom:12px;font-family:"VT323",monospace;font-size:22px;line-height:1.15;color:var(--crt-ink);text-shadow:0 0 6px rgba(154,203,99,.3)}
.occupant.busy{border-color:#5a2018}
.occupant .who-u{color:#E0B341}
.occupant .left{font-size:34px;line-height:1}
.occupant.busy .left{color:var(--red);text-shadow:0 0 6px rgba(229,83,61,.4)}
.occupant .pbar{grid-column:1/-1;height:5px;background:#1d2d16}
.occupant .pbar i{display:block;height:100%;background:var(--red)}
.occupant small{display:block;font-size:17px;opacity:.65}
.occ-line{font-size:18px;color:#E0B341}
.rl{display:flex;align-items:center;font-family:"Silkscreen",monospace;font-size:12px;color:var(--muted)}
.rl.live{color:var(--crt-ink)}
.n{aspect-ratio:1;border:2px dashed #2b2b2b;display:flex;align-items:center;justify-content:center;font-family:"VT323",monospace;font-size:15px;color:#3a3a3a}
.n.up{border:3px solid var(--navy);background:var(--screen);color:#0F1A0C;box-shadow:0 0 12px rgba(127,163,77,.45)}
.n.up.busy{background:var(--red);box-shadow:0 0 12px rgba(229,83,61,.45);color:#fff}
.legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:14px;font-size:13px;color:var(--muted)}
.legend i{display:inline-block;width:12px;height:12px;margin-right:6px;vertical-align:-1px}

@media (max-width:860px){ .occupant{grid-template-columns:1fr auto} .occupant .tagcol{display:none} .regions{grid-template-columns:1fr 1fr} .nodes{grid-template-columns:repeat(10,1fr)} .telemetry{grid-template-columns:1fr} .readouts{grid-template-columns:repeat(2,1fr)} .nodes{gap:4px} .n{font-size:12px} }


/* ---- node console (select + connect) ---- */
#console{display:none;padding:20px 0 64px}
#console .screen{min-height:min(70vh,600px);display:flex;flex-direction:column}
.os-bar{display:flex;justify-content:space-between;gap:10px;padding:8px 14px;border-bottom:3px solid #22361A;font-family:"VT323",monospace;font-size:20px;line-height:1;white-space:nowrap;overflow:hidden}
.os-body{flex:1;padding:16px;font-family:"VT323",monospace;font-size:21px;line-height:1.25;position:relative;z-index:1;overflow-y:auto;min-height:0}
.os-body h3{font-weight:400;font-size:28px;margin-bottom:4px}
.os-body .dim{opacity:.6}
.nlist{list-style:none;margin:14px 0}
.nrow{width:100%;display:grid;grid-template-columns:20px 1fr auto;gap:10px;align-items:center;text-align:left;background:transparent;border:0;border-bottom:2px dashed #22361A;color:var(--crt-ink);font:inherit;text-shadow:inherit;padding:10px 6px;cursor:pointer}
.nrow .cur{visibility:hidden}
.nrow.sel{background:rgba(154,203,99,.12)}
.nrow.sel .cur{visibility:visible}
.nrow:disabled{cursor:not-allowed;opacity:.38}
.nrow .nm{display:flex;flex-direction:column;line-height:1.1}
.nrow .nm small{font-size:17px;opacity:.7}
.tag{font-size:18px;padding:0 6px;border:2px solid currentColor}
.tag.free{color:var(--crt-ink)}
.tag.busy{color:var(--red)}
.os-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.os-actions .btn{flex:1;min-width:140px}
.conn{white-space:pre-wrap;word-break:break-all}
.conn .ok{color:var(--screen-hi)}
.conn .hex{opacity:.55}
.conn .art{color:#E0B341;white-space:pre;word-break:normal;line-height:1.05}
.conn .big{font-size:30px}

@media (max-width:860px){
  .hero{grid-template-columns:1fr;gap:36px;padding-top:28px}
  .monitor{margin:0 auto}
  .rules{grid-template-columns:1fr 1fr}
  .ticker{display:none}
}
@media (max-width:480px){ .rules{grid-template-columns:1fr} .who span{display:none} .who{gap:8px} .who .btn{padding:7px 10px;font-size:13px} .fake{font-size:19px} .term-casing{padding:10px} }
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* ---- multi-node additions ---- */
.tel-tabs{display:flex;flex-wrap:wrap;gap:8px;margin:-6px 0 14px}
.tel-tabs button{font-family:"VT323",monospace;font-size:20px;background:transparent;color:var(--muted);border:2px solid #22361A;padding:2px 10px;cursor:pointer}
.tel-tabs button.on{color:var(--crt-ink);border-color:var(--crt-ink)}
.n.dead{border:3px solid #5a2018;color:#a0473a}
.occ-more{font-family:"VT323",monospace;font-size:20px;color:var(--muted);margin:-4px 0 16px}