/* Knurl — two-knob e-ink panel */
@font-face{font-family:"Libre Baskerville";src:url("./fonts/libre-baskerville-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Libre Baskerville";src:url("./fonts/libre-baskerville-400-italic.woff2") format("woff2");font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:"Libre Baskerville";src:url("./fonts/libre-baskerville-700-normal.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("./fonts/ibm-plex-sans-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("./fonts/ibm-plex-sans-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Sans";src:url("./fonts/ibm-plex-sans-600-normal.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("./fonts/ibm-plex-mono-400-normal.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"IBM Plex Mono";src:url("./fonts/ibm-plex-mono-500-normal.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}

:root{
  --screen:#E8E4D8;
  --screen-deep:#DCD6C8;
  --ink:#1C1C1C;
  --ink-soft:#4A4A4A;
  --ghost:#8A8680;
  --hairline:#B8B3A8;
  --bezel:#C62828;
  --bezel-deep:#8E1B1B;
  --knob:#F5F2EA;
  --knob-stem:#D0CBC0;
  --flash:#2A2A2A;
  --font-display:"Libre Baskerville",Georgia,"Times New Roman",serif;
  --font-body:"IBM Plex Sans",system-ui,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,monospace;
  --draw-ms:600ms;
  --flash-ms:150ms;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  min-height:100vh;
  background:#2a2a2a;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1.05rem;
  line-height:1.55;
  display:flex;
  justify-content:center;
  padding:1.25rem 0.75rem 2rem;
}
.skip{
  position:absolute;left:-999px;top:0;
}
.skip:focus{left:1rem;top:1rem;z-index:100;background:var(--knob);padding:.5rem 1rem}

.flash{
  position:fixed;inset:0;z-index:80;pointer-events:none;
  background:var(--flash);opacity:0;
}
.flash.is-flashing{animation:eink-flash var(--flash-ms) steps(2,jump-none) 1}
@keyframes eink-flash{0%{opacity:0}40%{opacity:.92}100%{opacity:0}}

.toy{
  width:min(920px,100%);
  background:linear-gradient(180deg,var(--bezel) 0%,var(--bezel-deep) 100%);
  border-radius:28px;
  padding:1rem 1rem 1.25rem;
  box-shadow:
    0 0 0 2px #6d1212,
    0 24px 48px rgba(0,0,0,.45),
    inset 0 1px 0 rgba(255,255,255,.18);
}

.bezel-top{
  display:flex;align-items:baseline;justify-content:space-between;
  padding:0.35rem 0.75rem 0.85rem;
  color:#f3e6e6;
}
.brand{margin:0;font-size:1.1rem;letter-spacing:.18em;font-weight:500}
.brand-sub{margin:0;font-size:.68rem;letter-spacing:.12em;opacity:.8}

.screen-wrap{
  background:#1a1a1a;
  border-radius:10px;
  padding:10px;
  box-shadow:inset 0 0 0 1px #000, inset 0 8px 24px rgba(0,0,0,.5);
}
.screen{
  position:relative;
  background:var(--screen);
  border-radius:4px;
  min-height:70vh;
  max-height:min(82vh,900px);
  overflow:auto;
  color:var(--ink);
  overscroll-behavior:contain;
}
.screen:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

.powder{
  position:sticky;top:0;z-index:5;
  display:grid;place-items:center;
  min-height:60vh;
  background:var(--screen);
  text-align:center;padding:2rem;
}
.powder[hidden]{display:none}
.powder-title{font-family:var(--font-display);font-size:clamp(1.8rem,4vw,2.6rem);margin:0 0 .5rem}
.powder-sub{margin:0;color:var(--ghost);font-size:.8rem;letter-spacing:.08em}

.screen-content{padding:1.25rem 1.35rem 3rem}
.screen-content.is-cleared{visibility:hidden}

.mono{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.nav{
  display:flex;flex-wrap:wrap;gap:.75rem 1rem;align-items:center;
  padding-bottom:1rem;margin-bottom:1.5rem;
  border-bottom:1px solid var(--hairline);
}
.nav a{color:var(--ink-soft);text-decoration:none}
.nav a:hover{color:var(--ink)}
.nav .btn{margin-left:auto}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  text-decoration:none;color:var(--ink);
  border:1px solid var(--ink);background:transparent;
  padding:.55rem .9rem;cursor:pointer;
}
.btn:hover{background:var(--screen-deep)}
.btn:focus-visible,.knob:focus-visible,summary:focus-visible,a:focus-visible{
  outline:2px solid var(--ink);outline-offset:3px;
}
.btn-solid{background:var(--ink);color:var(--screen);border-color:var(--ink)}
.btn-solid:hover{background:var(--ink-soft);color:var(--screen)}
.btn-ghost{border-style:dashed}

.hero{padding:1rem 0 2.5rem}
.eyebrow{color:var(--ghost);margin:0 0 1rem}
.hero-title{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(2.8rem,9vw,5rem);line-height:1.05;margin:0 0 .75rem;
}
.draw-line{display:block}
.rule{width:min(240px,50%);height:8px;color:var(--ink);margin:0 0 1.25rem;display:block}
.lede{max-width:36rem;margin:0 0 1.5rem;color:var(--ink-soft);font-family:var(--font-display);font-size:1.15rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem}
.hint{color:var(--ghost);margin:0}

.block{padding:2rem 0;border-top:1px solid var(--hairline)}
.block-head{margin-bottom:1.5rem}
.idx{color:var(--ghost);margin:0 0 .35rem}
.block h2{
  font-family:var(--font-display);font-size:clamp(1.6rem,3vw,2.2rem);
  margin:0 0 .5rem;
}
.block-lede{max-width:34rem;color:var(--ink-soft);margin:0}

.steps{list-style:none;margin:0;padding:0;display:grid;gap:1.25rem}
.step{display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:start}
.step-n{color:var(--ghost)}
.step h3{font-family:var(--font-display);font-size:1.2rem;margin:0 0 .35rem}
.step p{margin:0;color:var(--ink-soft)}

.specimen-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;
}
.specimen{
  margin:0;padding:1rem;border:1px solid var(--hairline);
  background:var(--screen-deep);text-align:center;
}
.specimen svg{width:100%;height:auto;color:var(--ink);display:block;margin:0 auto .75rem}
.specimen figcaption{color:var(--ghost)}

.editions{list-style:none;margin:0;padding:0}
.edition{
  display:flex;flex-wrap:wrap;gap:1rem;justify-content:space-between;align-items:flex-end;
  padding:1.25rem 0;border-bottom:1px solid var(--hairline);
}
.edition h3{font-family:var(--font-display);margin:.25rem 0 .5rem;font-size:1.35rem}
.edition p{margin:0 0 .5rem;color:var(--ink-soft);max-width:36rem}
.edition .specs{color:var(--ghost);margin:0}
.edition-side{text-align:right;display:grid;gap:.75rem;justify-items:end}
.price{font-family:var(--font-display);font-size:1.6rem;margin:0}

.faq details{
  border-bottom:1px solid var(--hairline);padding:.85rem 0;
}
.faq summary{
  cursor:pointer;font-family:var(--font-display);font-size:1.05rem;
  list-style:none;display:flex;justify-content:space-between;gap:1rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--font-mono)}
.faq details[open] summary::after{content:"×"}
.faq details p{margin:.75rem 0 0;color:var(--ink-soft);max-width:40rem}

.colophon{
  margin-top:1rem;padding-top:2rem;
  display:grid;grid-template-columns:1.2fr 1fr;gap:2rem;
  border-top:1px solid var(--hairline);
}
.colophon h2{font-family:var(--font-display);font-size:2rem;margin:0 0 .75rem}
.colophon-meta{color:var(--ghost);line-height:1.8}
.colophon-meta p{margin:0}

/* Scroll-draw states */
.draw{
  opacity:0;transform:translateY(8px);
  transition:opacity var(--draw-ms) ease-out, transform var(--draw-ms) ease-out;
}
.draw.is-drawn{opacity:1;transform:none}
.draw-svg path{
  stroke-dasharray:1000;stroke-dashoffset:1000;
  transition:stroke-dashoffset var(--draw-ms) ease-out;
}
.draw-svg.is-drawn path{stroke-dashoffset:0}

@media (prefers-reduced-motion:reduce){
  .draw{opacity:1;transform:none;transition:none}
  .draw-svg path{stroke-dasharray:1000!important;stroke-dashoffset:0!important;transition:none!important}
  .flash,.flash.is-flashing{display:none!important;animation:none!important}
}

.bezel-bottom{
  display:grid;grid-template-columns:auto 1fr auto;
  align-items:center;gap:1rem;
  padding:1.1rem 0.5rem 0.25rem;
  color:#f3e6e6;
}
.bezel-mark{margin:0;text-align:center;font-size:.62rem;letter-spacing:.1em;opacity:.85}
.knob{
  appearance:none;border:0;background:transparent;color:inherit;
  display:grid;justify-items:center;gap:.4rem;cursor:pointer;padding:.25rem;
}
.knob-face{
  width:64px;height:64px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#fff 0%,var(--knob) 45%,var(--knob-stem) 100%);
  box-shadow:
    0 4px 0 var(--bezel-deep),
    inset 0 0 0 3px #cfc9bc,
    inset 0 -6px 10px rgba(0,0,0,.12);
  transition:transform 160ms ease;
}
.knob:active .knob-face,.knob.is-twisting .knob-face{transform:rotate(18deg)}
.knob-label{font-size:.65rem;letter-spacing:.14em}

@media (max-width:720px){
  /* Whole toy (bezel + dials) stays in the viewport; only the screen scrolls. */
  html,body{height:100%;}
  body{
    padding:.35rem;
    min-height:100dvh;
    min-height:100svh;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
  }
  .toy{
    display:flex;
    flex-direction:column;
    width:100%;
    height:calc(100dvh - .7rem);
    height:calc(100svh - .7rem);
    max-height:calc(100dvh - .7rem);
    max-height:calc(100svh - .7rem);
    border-radius:20px;
    padding:.55rem .55rem .4rem;
    box-sizing:border-box;
  }
  .bezel-top{
    flex:0 0 auto;
    padding:.2rem .45rem .45rem;
  }
  .brand{font-size:.95rem;letter-spacing:.14em}
  .brand-sub{font-size:.58rem}
  .screen-wrap{
    flex:1 1 auto;
    min-height:0;
    display:flex;
    flex-direction:column;
    padding:7px;
  }
  .screen{
    flex:1 1 auto;
    min-height:0;
    height:auto;
    max-height:none;
    overflow:auto;
    -webkit-overflow-scrolling:touch;
  }
  .powder{min-height:100%;position:relative;}
  .screen-content{padding:1rem 1rem 2rem}
  .hero{padding:.75rem 0 1.5rem}
  .hero-title{font-size:clamp(2.2rem,11vw,3.4rem)}
  .nav .btn{margin-left:0}
  .specimen-grid{grid-template-columns:1fr}
  .colophon{grid-template-columns:1fr}
  .edition-side{text-align:left;justify-items:start}
  .bezel-bottom{
    flex:0 0 auto;
    padding:.55rem .15rem .1rem;
    gap:.5rem;
  }
  .bezel-mark{display:none}
  .knob{gap:.25rem;padding:.1rem}
  .knob-face{width:48px;height:48px}
  .knob-label{font-size:.58rem}
}

@media (max-width:720px) and (max-height:560px){
  .knob-face{width:40px;height:40px}
  .bezel-top{padding:.1rem .35rem .3rem}
  .bezel-bottom{padding:.35rem .1rem 0}
  .brand-sub{display:none}
}