/* ============================================================
   灰境ashverse · Pixel Art (PICO-8) — public site
   Rules enforced: rounded-none / border 2-4px / hard 0-blur shadows /
   8-bit palette / monospace / transition:none (state machine) /
   active displacement == shadow offset.
   ============================================================ */
:root{
  --ink:#1a1c2c;
  --paper:#f4f4f4;
  --card:#e0d8b0;
  --white:#ffffff;
  --red:#ff004d;
  --green:#00e436;
  --blue:#29adff;
  --yellow:#ffec27;
  --orange:#ffa300;
  --pink:#ff77a8;
  --purple:#7e2553;
  --muted:#5f574f;
  --mono:ui-monospace,"Cascadia Mono","Consolas","DejaVu Sans Mono","Courier New","Microsoft YaHei",monospace;
}
*,*::before,*::after{
  box-sizing:border-box;
  transition:none !important;
  animation:none !important;
  border-radius:0 !important;
}
html{scroll-behavior:auto;scroll-padding-top:100px}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--mono);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:none;
}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;font-family:var(--mono)}
img{max-width:100%;display:block}
::selection{background:var(--yellow);color:var(--ink)}

/* ---------- focus: inner ring, never a glow ---------- */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:none;
  box-shadow:inset 0 0 0 3px var(--blue);
}

/* ---------- skip link ---------- */
.skip{position:absolute;left:-9999px;top:0;background:var(--yellow);color:var(--ink);border:2px solid var(--ink);padding:8px 12px;z-index:60}
.skip:focus{left:12px;top:12px}

/* ---------- top bar ---------- */
.topbar{position:sticky;top:0;z-index:20;background:var(--ink);border-bottom:4px solid var(--ink)}
.nav{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:76px;padding:10px 28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:18px;letter-spacing:.02em;color:var(--paper)}
.mark{display:grid;place-items:center;width:34px;height:34px;background:var(--yellow);color:var(--ink);border:2px solid var(--paper);font-weight:800;font-size:18px}
.navlinks{display:flex;gap:22px;font-size:13px;color:var(--paper);letter-spacing:.04em}
.navlinks a{padding:4px 2px;border-bottom:2px solid transparent}
.navlinks a:hover{color:var(--ink);background:var(--yellow);border-bottom-color:var(--yellow)}

/* ---------- layout ---------- */
main,.footer{max-width:1180px;margin:0 auto;padding:0 28px}

/* ---------- hero ---------- */
.hero{padding:64px 0 56px;display:grid;grid-template-columns:1.3fr .7fr;gap:46px;align-items:center}
.eyebrow{display:inline-block;background:var(--yellow);color:var(--ink);border:2px solid var(--ink);padding:2px 8px;font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
.hero h1{font-size:clamp(32px,4.6vw,54px);font-weight:800;line-height:1.16;letter-spacing:-.02em;margin:20px 0}
.hero h1 em{font-style:normal;color:var(--red)}
.lead{font-size:15px;line-height:1.9;color:var(--muted);max-width:56ch;margin:0}
.actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}

/* ---------- buttons ---------- */
button,.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 16px;
  border:2px solid var(--ink);
  background:var(--paper);
  color:var(--ink);
  font-size:14px;font-weight:800;letter-spacing:.04em;text-transform:uppercase;text-align:center;
  box-shadow:4px 4px 0 var(--ink);
  cursor:pointer;
}
button:hover,.button:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink);background:var(--blue);color:var(--ink)}
button:active,.button:active{transform:translate(4px,4px);box-shadow:none}
button:disabled,.button:disabled{background:var(--card);color:var(--muted);box-shadow:none;transform:none;cursor:not-allowed}
.button.primary{background:var(--yellow);color:var(--ink)}
.button.primary:hover{background:var(--green)}

/* ---------- notebook aside ---------- */
.notebook{background:var(--card);border:4px solid var(--ink);box-shadow:6px 6px 0 var(--ink);padding:18px 20px}
.note-label{display:inline-block;background:var(--ink);color:var(--yellow);padding:2px 8px;font-size:11px;font-weight:800;letter-spacing:.1em}
.notebook p{margin:14px 0;font-size:14px;line-height:1.95}
.note-row{display:flex;justify-content:space-between;gap:12px;border-top:2px solid var(--ink);padding:8px 0;font-size:13px;font-weight:700}

/* ---------- sections ---------- */
.block{padding:56px 0;border-top:4px solid var(--ink)}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:26px;flex-wrap:wrap}
.section-head h2{margin:10px 0 0;font-size:clamp(22px,2.6vw,30px);font-weight:800;line-height:1.3}
.section-head p{color:var(--muted);max-width:400px;margin:0;font-size:14px;line-height:1.8}
.status{margin:0;padding:0 0 8px;font-size:12px;color:var(--muted);letter-spacing:.04em}
.empty{background:var(--white);border:4px dashed var(--ink);padding:18px;font-size:13px;color:var(--muted)}

/* ---------- bookmark search + filters ---------- */
.searchbar{display:flex;flex-direction:column;gap:16px;margin-bottom:24px}
.search{
  width:100%;max-width:440px;padding:11px 12px;
  background:var(--card);color:var(--ink);
  border:2px solid var(--ink);box-shadow:4px 4px 0 var(--ink);
}
.search::placeholder{color:var(--muted)}
.search:focus{outline:none;box-shadow:inset 0 0 0 3px var(--blue),4px 4px 0 var(--ink)}
.filters{display:flex;flex-wrap:wrap;gap:10px}
.filters button{padding:6px 12px;font-size:12px;text-transform:none;letter-spacing:0;box-shadow:2px 2px 0 var(--ink)}
.filters button:hover{transform:translate(1px,1px);box-shadow:1px 1px 0 var(--ink)}
.filters button.active{background:var(--green);color:var(--ink)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(258px,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--card);border:4px solid var(--ink);box-shadow:6px 6px 0 var(--ink);
  padding:16px 18px;
}
.card:hover{transform:translate(3px,3px);box-shadow:3px 3px 0 var(--ink);background:var(--white)}
.card-icon{width:34px;height:34px;display:grid;place-items:center;background:var(--blue);border:2px solid var(--ink);color:var(--ink);font-weight:800;font-size:13px}
.card h3{margin:0;font-size:16px;font-weight:800;line-height:1.45}
.card p{margin:0;font-size:13px;line-height:1.8;color:var(--muted)}
.card-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:auto;padding-top:10px;border-top:2px solid var(--ink);font-size:12px}
.card-bottom span{background:var(--ink);color:var(--yellow);padding:2px 6px;font-weight:700}
.card-bottom a{font-weight:800;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.card-bottom a:hover{background:var(--yellow);color:var(--ink)}

/* ---------- posts ---------- */
.post-list{display:flex;flex-direction:column;gap:16px}
.post{
  display:grid;grid-template-columns:112px 1fr 24px;gap:16px;align-items:center;
  background:var(--white);border:4px solid var(--ink);box-shadow:4px 4px 0 var(--ink);
  padding:14px 18px;
}
.post:hover{transform:translate(2px,2px);box-shadow:2px 2px 0 var(--ink);background:var(--card)}
.post time{font-size:12px;color:var(--muted);letter-spacing:.03em}
.post-open{
  display:block;width:100%;padding:0;text-align:left;
  background:none;border:0;box-shadow:none;
  font-size:15px;font-weight:800;text-transform:none;letter-spacing:0;
}
.post-open:hover,.post-open:active{transform:none;box-shadow:none;background:none;color:var(--ink)}
.post-open h3{margin:0 0 4px;font-size:16px;font-weight:800;line-height:1.4}
.post p{margin:0;font-size:13px;color:var(--muted);line-height:1.7}
.arrow{font-weight:800;color:var(--red);font-size:18px}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:34px;align-items:start}
.about-grid h2{margin:10px 0 12px;font-size:clamp(24px,3vw,34px);font-weight:800}
.signature{display:inline-block;background:var(--ink);color:var(--green);padding:2px 8px;font-size:12px;letter-spacing:.08em}
#about-text{margin:0;font-size:14px;line-height:2;color:var(--muted);white-space:pre-line}

/* ---------- footer ---------- */
.footer{
  max-width:1180px;margin:0 auto;padding:26px 28px 34px;
  background:var(--ink);color:var(--paper);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;letter-spacing:.03em;
}
.footer span{display:inline-block}

/* ---------- dialogs ---------- */
dialog{
  width:min(780px,92vw);max-height:88vh;overflow:auto;
  padding:0;margin:auto;
  background:var(--paper);color:var(--ink);
  border:4px solid var(--ink);box-shadow:8px 8px 0 var(--ink);
}
dialog::backdrop{background:rgba(26,28,44,.72)}
.dialog-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding:18px 20px;background:var(--card);border-bottom:4px solid var(--ink)}
.dialog-top h2{margin:8px 0 0;font-size:20px;font-weight:800}
.dialog-top .close{margin-left:auto}
dialog > .lead{margin:18px 20px 0}
dialog > .prose{padding:0 20px 20px}
dialog > .textlink{display:inline-block;margin:0 20px 22px}
.textlink{font-weight:800;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.textlink:hover{background:var(--yellow);color:var(--ink)}

/* ---------- article prose ---------- */
.prose{font-size:15px;line-height:1.9;max-width:74ch}
.prose h1,.prose h2,.prose h3{margin:1.4em 0 .5em;line-height:1.35;font-weight:800}
.prose h1{font-size:24px}.prose h2{font-size:20px}.prose h3{font-size:17px}
.prose p{margin:.8em 0}
.prose ul,.prose ol{padding-left:1.4em;margin:.8em 0}
.prose li{margin:.3em 0}
.prose pre{background:var(--ink);color:var(--green);border:4px solid var(--ink);padding:14px;overflow:auto;font-size:13px;line-height:1.7}
.prose code{background:var(--card);border:2px solid var(--ink);padding:1px 5px;font-size:.92em}
.prose pre code{background:none;border:0;padding:0;color:inherit}
.prose blockquote{margin:1em 0;padding:12px 14px;background:var(--card);border:4px solid var(--ink);color:var(--ink)}
.prose a{color:var(--purple);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.prose hr{border:0;border-top:4px solid var(--ink);margin:1.6em 0}
.prose img{border:4px solid var(--ink)}

/* ---------- git playground ---------- */
.git-actions{display:flex;flex-wrap:wrap;gap:10px;padding:0 20px}
.git-actions button{padding:8px 12px;font-size:12px;text-transform:none;letter-spacing:0}
.git-state{
  margin:18px 20px 22px;padding:14px;
  background:var(--ink);color:var(--green);
  border:4px solid var(--ink);
  font-size:12px;line-height:1.8;
  white-space:pre-wrap;overflow:auto;
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .hero{grid-template-columns:1fr;gap:32px;padding:44px 0 40px}
  .about-grid{grid-template-columns:1fr;gap:22px}
  .nav{flex-direction:column;align-items:flex-start;gap:10px;padding:12px 20px}
  .navlinks{gap:16px;flex-wrap:wrap}
  main,.footer{padding:0 20px}
  .footer{padding:22px 20px 28px;flex-direction:column;gap:8px}
  .post{grid-template-columns:1fr;gap:8px}
  .arrow{display:none}
}
@media (max-width:560px){
  .cards{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  dialog{width:96vw;box-shadow:4px 4px 0 var(--ink)}
}
/* reduced motion: the whole UI is already instant, nothing to disable */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}