/* CASSETTE FUTURES — warm retro hardware skeuomorphism
   cream faceplates · orange silkscreen · dark slate chassis */

:root{
  --slate:#22262e;
  --slate-deep:#1a1d24;
  --slate-line:#343a45;
  --cream:#e8e0d0;
  --cream-hi:#f4eee1;
  --cream-lo:#d6ccb8;
  --cream-shadow:#b8ad96;
  --orange:#ff5f1f;
  --orange-deep:#d94a10;   /* large display text on cream only */
  --orange-ink:#a8360a;    /* AA-safe orange for small text on cream */
  --ink:#2a2d33;            /* engraved text on cream */
  --ink-soft:#565b64;
  --bone:#e8e0d0;           /* light text on slate */
  --bone-dim:#a7a293;
  --led-bg:#181410;
  --led-glow:#ffb387;
  --radius:14px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}}

body{
  background:
    radial-gradient(1200px 600px at 70% -10%, #2b3040 0%, transparent 60%),
    var(--slate);
  color:var(--bone);
  font-family:"Inter",system-ui,sans-serif;
  font-size:16px;line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

::selection{background:var(--orange);color:var(--slate-deep)}

.skip{position:absolute;left:-999px;top:0;background:var(--orange);color:var(--slate-deep);padding:.6rem 1rem;z-index:100;font-weight:600}
.skip:focus{left:0}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:4px}

/* ---------------- rail (nav) ---------------- */
.rail{
  position:fixed;inset:0 0 auto 0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:.7rem clamp(1rem,4vw,2.5rem);
  background:linear-gradient(#262b34f2,#22262ee6);
  border-bottom:1px solid var(--slate-line);
  backdrop-filter:blur(8px);
}
.rail-mark{
  display:flex;align-items:center;gap:.6rem;
  font-family:"VT323",monospace;font-size:1.35rem;letter-spacing:.08em;
  color:var(--cream);text-decoration:none;
}
.rail-logo{width:30px;height:20px;color:var(--orange)}
.rail nav{display:flex;align-items:center;gap:clamp(.8rem,2.5vw,1.8rem)}
.rail nav a{
  color:var(--bone-dim);text-decoration:none;font-size:.78rem;font-weight:600;
  letter-spacing:.14em;text-transform:uppercase;
  transition:color .25s;
}
.rail nav a:hover{color:var(--cream)}
.rail-cta{
  color:var(--slate-deep)!important;background:var(--orange);
  padding:.45rem .85rem;border-radius:6px;
  box-shadow:0 2px 0 var(--orange-deep);
}
.rail-cta:hover{filter:brightness(1.08)}
@media (max-width:640px){
  .rail nav a:not(.rail-cta){display:none}
}

/* ---------------- shared panel ---------------- */
.panel{
  position:relative;
  background:
    linear-gradient(160deg, var(--cream-hi) 0%, var(--cream) 42%, var(--cream-lo) 100%);
  border-radius:var(--radius);
  box-shadow:
    inset 0 1px 0 #fffef8,
    inset 0 -2px 0 var(--cream-shadow),
    0 1px 2px rgba(0,0,0,.5),
    0 14px 34px rgba(0,0,0,.45);
  color:var(--ink);
}
/* subtle brushed texture */
.panel::before{
  content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;
  background:repeating-linear-gradient(0deg, rgba(0,0,0,.016) 0 1px, transparent 1px 3px);
}

.screw{
  position:absolute;width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 34% 30%, #fdf9ee 0%, #cfc4ac 45%, #978c72 100%);
  box-shadow:inset 0 -1px 2px rgba(0,0,0,.4), 0 1px 1px rgba(255,255,255,.7);
  z-index:2;
}
.screw::after{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:2px;
  background:#5e5544;border-radius:1px;
  transform:translate(-50%,-50%) rotate(var(--slot,30deg));
}
.screw-tl{top:12px;left:12px}.screw-tr{top:12px;right:12px}
.screw-bl{bottom:12px;left:12px}.screw-br{bottom:12px;right:12px}

.section-tag{
  font-family:"VT323",monospace;font-size:1rem;letter-spacing:.28em;
  color:var(--orange);margin-bottom:1rem;
}

/* engraved label style on cream */
.ctl-label{
  font-size:.62rem;font-weight:700;letter-spacing:.18em;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.75);
  text-transform:uppercase;
}

/* LED readout */
.led{
  display:inline-block;min-width:4.6em;text-align:center;
  font-family:"VT323",monospace;font-size:1.05rem;line-height:1.35;
  color:var(--led-glow);
  background:var(--led-bg);
  border-radius:4px;padding:.05em .4em;
  box-shadow:inset 0 2px 5px rgba(0,0,0,.85), 0 1px 0 rgba(255,255,255,.55);
  text-shadow:0 0 6px rgba(255,95,31,.65);
}

/* ---------------- HERO ---------------- */
.hero{
  min-height:100svh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:2.2rem;
  padding:clamp(6rem,12vh,8rem) clamp(1rem,4vw,2.5rem) 3rem;
}
.hero-copy{text-align:center;max-width:46rem}
.hero-kicker{
  font-family:"VT323",monospace;font-size:1.05rem;letter-spacing:.3em;color:var(--orange);
}
.hero-kicker-fine{color:var(--bone-dim);letter-spacing:.1em;font-size:.9rem}
.hero-title{
  font-family:"VT323",monospace;font-weight:400;
  font-size:clamp(2.6rem,7.2vw,5.4rem);
  line-height:.98;letter-spacing:.01em;color:var(--cream);
  margin:.7rem 0 1rem;
  text-shadow:0 3px 0 rgba(0,0,0,.35);
}
.hero-title-orange{color:var(--orange)}
.hero-sub{color:var(--bone-dim);max-width:38rem;margin:0 auto;font-size:1.02rem}
.hero-sub em{color:var(--cream);font-style:italic}
.hero-footnote{
  font-family:"VT323",monospace;color:var(--bone-dim);font-size:1rem;letter-spacing:.06em;
  text-align:center;
}

/* -------- console -------- */
.console{
  width:min(880px,100%);
  padding:clamp(1.4rem,3.4vw,2.4rem) clamp(1.2rem,3.4vw,2.6rem);
}
.console-head{
  display:flex;align-items:center;justify-content:space-between;gap:1.4rem;
  flex-wrap:wrap;
  padding-bottom:1.2rem;margin-bottom:1.4rem;
  border-bottom:2px solid var(--orange);
}
.console-badge{display:flex;flex-direction:column}
.console-model{
  font-family:"VT323",monospace;font-size:2rem;line-height:1;color:var(--orange);
}
.console-name{
  font-size:.66rem;font-weight:700;letter-spacing:.3em;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.75);
}
.console-scope-wrap{
  display:flex;flex-direction:column;align-items:center;gap:.35rem;
  flex:1 1 220px;max-width:340px;min-width:180px;
}
#scope{
  width:100%;height:72px;display:block;border-radius:6px;
  background:var(--led-bg);
  box-shadow:inset 0 3px 8px rgba(0,0,0,.9), 0 1px 0 rgba(255,255,255,.55);
}
.scope-label{font-size:.56rem;font-weight:700;letter-spacing:.24em;color:var(--ink-soft)}

.power-block{display:flex;flex-direction:column;align-items:center;gap:.3rem}
.power{
  display:flex;align-items:center;gap:.6rem;
  background:none;border:0;cursor:pointer;padding:.4rem .5rem;border-radius:8px;
  font:inherit;
}
.power-led{
  width:10px;height:10px;border-radius:50%;
  background:#6e6250;box-shadow:inset 0 1px 2px rgba(0,0,0,.5);
  transition:background .2s, box-shadow .2s;
}
.power[aria-pressed="true"] .power-led{
  background:var(--orange);
  box-shadow:0 0 10px 2px rgba(255,95,31,.7), inset 0 1px 1px rgba(255,255,255,.5);
}
.power-track{
  position:relative;width:58px;height:26px;border-radius:14px;
  background:linear-gradient(#c9bda4,#ddd2bc);
  box-shadow:inset 0 2px 5px rgba(0,0,0,.4), 0 1px 0 rgba(255,255,255,.7);
}
.power-thumb{
  position:absolute;top:3px;left:3px;width:20px;height:20px;border-radius:50%;
  background:linear-gradient(#faf5e8,#cfc4ac);
  box-shadow:0 1px 3px rgba(0,0,0,.5);
  transition:left .22s cubic-bezier(.5,1.6,.4,1);
}
.power[aria-pressed="true"] .power-thumb{left:35px;background:linear-gradient(#ff8a52,var(--orange))}
.power-text{
  font-size:.68rem;font-weight:700;letter-spacing:.22em;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.75);
}
.power-hint{
  font-family:"VT323",monospace;font-size:.95rem;color:var(--ink-soft);letter-spacing:.04em;
  transition:opacity .4s;
}
.power-hint.off{opacity:0}

.console-controls{
  display:flex;align-items:stretch;justify-content:space-between;
  gap:clamp(.8rem,3vw,2rem);
  flex-wrap:wrap;
}
.knob-block{
  display:flex;flex-direction:column;align-items:center;gap:.5rem;
  flex:1 1 120px;min-width:104px;
}
.knob-well{position:relative;width:104px;height:104px}
.knob-ticks{position:absolute;inset:0;pointer-events:none}
.knob-ticks line{stroke:var(--ink-soft);stroke-width:1.6}
.knob-ticks line.major{stroke:var(--orange);stroke-width:2.4}
.knob{
  position:absolute;inset:14px;border-radius:50%;
  cursor:grab;touch-action:none;
  background:
    radial-gradient(circle at 32% 28%, #3d434f 0%, var(--slate) 55%, #14171c 100%);
  box-shadow:
    0 4px 8px rgba(0,0,0,.45),
    0 1px 0 rgba(255,255,255,.6),
    inset 0 1px 1px rgba(255,255,255,.16),
    inset 0 -3px 6px rgba(0,0,0,.6);
}
.knob:active{cursor:grabbing}
.knob::after{ /* grip ring */
  content:"";position:absolute;inset:7px;border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
}
.knob-pointer{
  position:absolute;left:50%;top:50%;width:100%;height:100%;
  transform:translate(-50%,-50%) rotate(var(--angle,0deg));
  pointer-events:none;
}
.knob-pointer::before{
  content:"";position:absolute;left:50%;top:9%;width:4px;height:30%;
  transform:translateX(-50%);border-radius:2px;
  background:var(--orange);
  box-shadow:0 0 6px rgba(255,95,31,.6);
}

.slider-block{
  display:flex;flex-direction:column;align-items:center;gap:.55rem;
  flex:0 0 auto;min-width:74px;
}
.vslider{
  appearance:none;-webkit-appearance:none;
  writing-mode:vertical-lr;direction:rtl;
  width:30px;height:112px;
  cursor:pointer;touch-action:none;border-radius:6px;
  /* the slot lives on the input itself: robust across engines */
  background:linear-gradient(to right,
    transparent 11px, #b8ad96 11px, #c9bda4 13px, #ddd2bc 17px, #c9bda4 19px, transparent 19px);
}
.vslider::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;
  width:26px;height:16px;border-radius:4px;border:0;
  background:
    linear-gradient(to bottom, transparent 6px, var(--orange) 6px, var(--orange) 9px, transparent 9px),
    linear-gradient(#3d434f,#14171c);
  box-shadow:0 2px 4px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.2);
}
.vslider::-moz-range-thumb{
  width:26px;height:16px;border-radius:4px;border:0;
  background:
    linear-gradient(to bottom, transparent 6px, var(--orange) 6px, var(--orange) 9px, transparent 9px),
    linear-gradient(#3d434f,#14171c);
  box-shadow:0 2px 4px rgba(0,0,0,.5);
}

.console-foot{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  margin-top:1.6rem;padding-top:1rem;
  border-top:1px solid rgba(42,45,51,.25);
}
.silkscreen-note{
  font-size:.6rem;font-weight:600;letter-spacing:.18em;color:var(--ink-soft);
  text-shadow:0 1px 0 rgba(255,255,255,.7);
}
.serial{font-family:"VT323",monospace;font-size:.9rem;letter-spacing:.12em}

/* ---------------- manifesto ---------------- */
.manifesto{padding:clamp(5rem,12vh,9rem) clamp(1rem,5vw,3rem)}
.manifesto-inner{max-width:56rem;margin:0 auto}
.manifesto-text{
  font-family:"VT323",monospace;font-weight:400;
  font-size:clamp(1.7rem,3.8vw,2.9rem);line-height:1.22;
  color:var(--cream);
}
.manifesto-text em{font-style:normal;color:var(--cream);border-bottom:3px solid var(--orange)}
.mt-orange{color:var(--orange)}
.manifesto-text .w{opacity:.18;transition:opacity .3s}
.manifesto-text .w.lit{opacity:1}
.manifesto-cols{
  display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;
  margin-top:2.8rem;color:var(--bone-dim);font-size:.98rem;
}
@media (max-width:700px){.manifesto-cols{grid-template-columns:1fr;gap:1.4rem}}

/* ---------------- tape divider ---------------- */
.tape-divider{
  display:flex;flex-direction:column;align-items:center;gap:.6rem;
  padding:clamp(2rem,6vh,4rem) 1rem;
}
.cassette{width:min(340px,78vw);height:auto;filter:drop-shadow(0 14px 24px rgba(0,0,0,.5))}
.cs-shell{fill:#2b303a;stroke:#454c5a;stroke-width:2}
.cs-label{fill:var(--cream)}
.cs-title{font-family:"VT323",monospace;font-size:24px;fill:var(--ink);letter-spacing:2px}
.cs-sub{font-family:"VT323",monospace;font-size:15px;fill:var(--orange);letter-spacing:3px}
.cs-rule{stroke:var(--orange);stroke-width:2}
.cs-window{fill:#14171c;stroke:#454c5a;stroke-width:2}
.cs-hub{fill:#e8e0d0;stroke:#9c9078;stroke-width:2}
.hub-spokes line{stroke:#22262e;stroke-width:2.4;stroke-linecap:round}
.tape-pack{fill:#3b3227;stroke:#584a37;stroke-width:1}
.cs-tape-run{stroke:#584a37;stroke-width:3}
.cs-screwdot{fill:#454c5a}
.cs-fine{font-family:"VT323",monospace;font-size:11px;fill:#7d8494;letter-spacing:2px}
.hub-spokes{transform-box:fill-box;transform-origin:center}
.tape-caption{
  font-family:"VT323",monospace;color:var(--bone-dim);letter-spacing:.25em;font-size:.95rem;
  text-transform:uppercase;
}

/* ---------------- units ---------------- */
.units{
  padding:clamp(3rem,8vh,5rem) clamp(1rem,4vw,2.5rem);
  display:flex;flex-direction:column;align-items:center;gap:clamp(2rem,5vh,3.2rem);
}
.units-head{text-align:center;max-width:44rem}
.units-title{
  font-family:"VT323",monospace;font-weight:400;
  font-size:clamp(2.1rem,5vw,3.6rem);color:var(--cream);line-height:1.02;
  margin-bottom:.8rem;
}
.units-sub{color:var(--bone-dim);font-size:.98rem}

.unit{
  width:min(920px,100%);
  display:grid;
  grid-template-columns:minmax(150px,1fr) minmax(180px,1.2fr) 1.4fr;
  grid-template-areas:"id art specs" "cta cta specs";
  gap:1.2rem 2rem;align-items:center;
  padding:clamp(1.6rem,4vw,2.4rem) clamp(1.4rem,4vw,2.8rem);
}
.unit-id{grid-area:id}
.unit-model{
  font-family:"VT323",monospace;font-size:1.4rem;color:var(--orange);letter-spacing:.06em;
}
.unit-name{
  font-family:"VT323",monospace;font-weight:400;font-size:clamp(2rem,4.5vw,3rem);
  line-height:.95;color:var(--ink);letter-spacing:.01em;
  text-shadow:0 1px 0 rgba(255,255,255,.8);
}
.unit-type{
  font-size:.6rem;font-weight:700;letter-spacing:.22em;color:var(--ink-soft);
  margin-top:.5rem;text-shadow:0 1px 0 rgba(255,255,255,.7);
}
.unit-art{grid-area:art}
.unit-art svg{
  width:100%;height:auto;display:block;border-radius:8px;
  background:var(--led-bg);
  box-shadow:inset 0 3px 8px rgba(0,0,0,.85), 0 1px 0 rgba(255,255,255,.6);
  padding:6px;
}
.ua-wave{fill:none;stroke:var(--orange);stroke-width:2.5;opacity:.95}
.ua-wave-2{opacity:.55;stroke:#ffb387}
.ua-wave-3{opacity:.3;stroke:#ffd9c2}
.ua-tapeline{fill:none;stroke:var(--orange);stroke-width:2.5}
.ua-tapeline-2{opacity:.5;stroke:#ffb387}
.ua-reel{fill:none;stroke:#ffb387;stroke-width:2.5}
.ua-grid rect{fill:#2a2018;stroke:#584a37;stroke-width:1}
.ua-grid rect.lit{fill:var(--orange);stroke:var(--orange);filter:drop-shadow(0 0 3px rgba(255,95,31,.8))}
.unit-specs{grid-area:specs;display:flex;flex-direction:column;gap:.7rem}
.unit-specs div{
  display:grid;grid-template-columns:7.2em 1fr;gap:1rem;align-items:baseline;
  padding-bottom:.65rem;border-bottom:1px dashed rgba(42,45,51,.3);
}
.unit-specs dt{
  font-size:.6rem;font-weight:700;letter-spacing:.18em;color:var(--orange-ink);
}
.unit-specs dd{font-size:.9rem;color:var(--ink)}
.unit-cta-row{grid-area:cta;display:flex;align-items:center;gap:1.2rem;flex-wrap:wrap}
.btn-demo{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:"VT323",monospace;font-size:1.25rem;letter-spacing:.1em;
  color:var(--cream);background:var(--slate);
  padding:.55rem 1.2rem;border-radius:8px;text-decoration:none;
  box-shadow:0 3px 0 #0e1013, 0 6px 12px rgba(0,0,0,.3);
  transition:transform .12s, box-shadow .12s;
}
.btn-demo:hover{transform:translateY(1px);box-shadow:0 2px 0 #0e1013, 0 4px 8px rgba(0,0,0,.3)}
.btn-demo:active{transform:translateY(3px);box-shadow:0 0 0 #0e1013}
.btn-arrow{color:var(--orange)}
.unit-price{
  font-size:.78rem;font-weight:600;letter-spacing:.08em;color:var(--ink-soft);
  text-shadow:0 1px 0 rgba(255,255,255,.7);
}

@media (max-width:860px){
  .unit{
    grid-template-columns:1fr 1fr;
    grid-template-areas:"id art" "specs specs" "cta cta";
  }
}
@media (max-width:560px){
  .unit{grid-template-columns:1fr;grid-template-areas:"id" "art" "specs" "cta"}
  .unit-specs div{grid-template-columns:6.2em 1fr;gap:.7rem}
}

/* ---------------- signal path ---------------- */
.signal{padding:clamp(3rem,8vh,6rem) clamp(1rem,5vw,3rem);max-width:62rem;margin:0 auto}
.signal-head{margin-bottom:2.6rem}
.signal-list{list-style:none;display:flex;flex-direction:column;gap:0}
.signal-step{
  display:grid;grid-template-columns:auto 1fr;gap:1.6rem;align-items:start;
  padding:1.8rem 0;border-top:1px solid var(--slate-line);
}
.signal-step:last-child{border-bottom:1px solid var(--slate-line)}
.signal-no{
  font-family:"VT323",monospace;font-size:2.2rem;line-height:1;color:var(--orange);
  min-width:2.2ch;
}
.signal-step h3{
  font-family:"VT323",monospace;font-weight:400;font-size:1.6rem;color:var(--cream);
  margin-bottom:.4rem;
}
.signal-step p{color:var(--bone-dim);max-width:44rem}

/* ---------------- patch sheet ---------------- */
.patchsheet{padding:clamp(3rem,10vh,6rem) clamp(1rem,4vw,2.5rem) clamp(4rem,10vh,7rem);display:flex;justify-content:center}
.patchsheet-panel{
  width:min(720px,100%);text-align:center;
  padding:clamp(2.2rem,6vw,3.4rem) clamp(1.4rem,5vw,3rem);
}
.patchsheet-panel .section-tag{color:var(--orange-ink)}
.patchsheet-title{
  font-family:"VT323",monospace;font-weight:400;
  font-size:clamp(1.9rem,4.6vw,3.1rem);line-height:1.02;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.8);
  margin-bottom:.9rem;
}
.patchsheet-title .hero-title-orange{color:var(--orange-deep)}
.patchsheet-sub{color:var(--ink-soft);max-width:34rem;margin:0 auto 1.8rem;font-size:.95rem}
.patchsheet-form{
  display:flex;gap:.7rem;justify-content:center;flex-wrap:wrap;
}
.patchsheet-form input{
  font:inherit;font-size:.95rem;
  padding:.75rem 1rem;min-width:min(20rem,70vw);
  background:var(--led-bg);color:var(--led-glow);
  font-family:"VT323",monospace;font-size:1.2rem;letter-spacing:.04em;
  border:0;border-radius:8px;
  box-shadow:inset 0 3px 6px rgba(0,0,0,.85), 0 1px 0 rgba(255,255,255,.6);
}
.patchsheet-form input::placeholder{color:#8a6a52}
.patchsheet-form button{
  font-family:"VT323",monospace;font-size:1.25rem;letter-spacing:.1em;
  color:var(--slate-deep);background:var(--orange);
  border:0;border-radius:8px;padding:.6rem 1.4rem;cursor:pointer;
  box-shadow:0 3px 0 var(--orange-deep), 0 6px 12px rgba(0,0,0,.25);
  transition:transform .12s, box-shadow .12s;
}
.patchsheet-form button:hover{filter:brightness(1.06)}
.patchsheet-form button:active{transform:translateY(3px);box-shadow:0 0 0 var(--orange-deep)}
.patchsheet-confirm{
  margin-top:1.1rem;font-family:"VT323",monospace;font-size:1.15rem;color:var(--orange-ink);
  min-height:1.5em;
}

/* ---------------- footer ---------------- */
.footer{
  border-top:1px solid var(--slate-line);
  padding:2.4rem clamp(1rem,4vw,2.5rem) 3rem;
  display:flex;flex-direction:column;gap:.7rem;align-items:center;text-align:center;
  color:var(--bone-dim);font-size:.85rem;
}
.footer a{color:var(--cream);text-decoration-color:var(--orange)}
.footer-fine{font-size:.78rem;color:#7d8494}

/* ---------------- guide + 404 ---------------- */
.guide-body{
  max-width:52rem;margin:0 auto;padding:5.5rem 1.4rem 4rem;
}
.guide-body .back{
  font-family:"VT323",monospace;font-size:1.15rem;color:var(--orange);text-decoration:none;letter-spacing:.06em;
}
.guide-body h1{
  font-family:"VT323",monospace;font-weight:400;font-size:clamp(2.4rem,6vw,3.6rem);
  color:var(--cream);margin:1rem 0 1.2rem;line-height:1;
}
.guide-body h2{
  font-family:"VT323",monospace;font-weight:400;font-size:1.55rem;color:var(--orange);
  margin:2.6rem 0 .7rem;letter-spacing:.02em;
}
.guide-body p,.guide-body li{color:#c8c2b4;font-size:.97rem}
.guide-body ul,.guide-body ol{padding-left:1.3rem;display:flex;flex-direction:column;gap:.45rem;margin:.5rem 0}
.guide-body code{
  font-family:"VT323",monospace;font-size:1.05em;color:var(--led-glow);
  background:var(--led-bg);padding:.08em .4em;border-radius:4px;
}
.guide-body strong{color:var(--cream)}
.guide-body a{color:var(--orange)}

.nf{
  min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:1.6rem;padding:2rem 1rem;text-align:center;
}
.nf-panel{width:min(560px,100%);padding:2.6rem 2rem;text-align:center}
.nf-code{
  font-family:"VT323",monospace;font-size:clamp(4.5rem,16vw,7rem);line-height:1;color:var(--ink);
  text-shadow:0 1px 0 rgba(255,255,255,.8);
}
.nf-msg{font-family:"VT323",monospace;font-size:1.35rem;color:var(--orange-ink);margin:.4rem 0 1rem}
.nf-fine{color:var(--ink-soft);font-size:.9rem;max-width:26rem;margin:0 auto 1.6rem}
.nf .btn-demo{margin-top:.4rem}

/* ---------------- reduced motion ---------------- */
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
}