/* Happy Frequency - static site. Retro bitmap, calm & tidy. Zero external requests. */

/* ---- Self-hosted pixel display font ----
   Drop the actual OFL .woff2 files into /fonts (see fonts/README.md).
   Falls back to a chunky monospace stack until then. NEVER load from gstatic. */
@font-face{
  font-family:"Silkscreen";
  src:url("fonts/Silkscreen-Regular.woff2") format("woff2");
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:"Silkscreen";
  src:url("fonts/Silkscreen-Bold.woff2") format("woff2");
  font-weight:700;font-style:normal;font-display:swap;
}

:root{
  --pixel:"Silkscreen",ui-monospace,"Cascadia Mono","Segoe UI Mono",Menlo,Consolas,monospace;
  --body:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  /* light theme - "Blueprint & Brass": cool plotter paper, brass accent,
     verdigris second. All pairs WCAG AA, see CLAUDE.md before changing. */
  --paper:#DFE4E3;
  --card:#EFF2F0;
  --sunken:#CBD3D2;
  --ink:#12212B;
  --muted:#4A5C64;
  --line:#12212B;
  --accent:#B07A18;      /* brass - decorative fills: title bars, eq, logo */
  --accent-ink:#7A5210;  /* accessible accent text + button fill */
  --accent-on:#FFFFFF;   /* text on --accent-ink/--second fills */
  --second:#1F6B5E;      /* verdigris - live chips, alt eq bars */
  --link:#185A50;
  --link-hover:#0E3F38;
  --hard:#0A1218;        /* hard pixel shadow */
  --dither:rgba(18,33,43,.06);
  --focus:#B07A18;
}
@media (prefers-color-scheme:dark){
  :root{
    --paper:#0F171C;
    --card:#172329;
    --sunken:#202F36;
    --ink:#DDE6E6;
    --muted:#93A6AC;
    --line:#3A4C54;
    --accent:#D9A03A;
    --accent-ink:#E8B959;
    --accent-on:#0F171C;
    --second:#4FB8A6;
    --link:#6FD0C0;
    --link-hover:#9BE2D6;
    --hard:#05090B;
    --dither:rgba(221,230,230,.06);
    --focus:#D9A03A;
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--body);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}

/* ---- type ---- */
h1,h2,h3{margin:0;line-height:1.15}
h1{font-family:var(--pixel);font-weight:700;font-size:clamp(26px,5vw,40px);letter-spacing:.01em}
h2{font-family:var(--pixel);font-weight:700;font-size:clamp(18px,3.2vw,24px)}
h3{font-family:var(--body);font-weight:700;font-size:19px}
p{margin:0 0 1em}
a{color:var(--link);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
a:hover{color:var(--link-hover)}
.eyebrow{font-family:var(--pixel);font-size:11px;letter-spacing:.04em;color:var(--accent-ink);text-transform:uppercase}
.lead{font-size:20px;line-height:1.55;max-width:46ch}
.muted{color:var(--muted)}
small,.small{font-size:14px}

/* focus */
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
a:focus-visible{outline-offset:3px}

/* skip link */
.skip{position:absolute;left:8px;top:-48px;background:var(--card);border:3px solid var(--line);padding:8px 12px;font-family:var(--pixel);font-size:12px;z-index:50;transition:top .1s}
.skip:focus{top:8px}

/* ---- layout ---- */
.wrap{max-width:1000px;margin:0 auto;padding-inline:24px}
.section{padding-block:56px}
.stack>*+*{margin-top:14px}

/* ---- site header ---- */
.masthead{border-bottom:3px solid var(--line);background:var(--card)}
.masthead__in{max-width:1000px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand__name{font-family:var(--pixel);font-size:16px}
.nav{display:flex;gap:20px;align-items:center}
.nav a{font-family:var(--pixel);font-size:12px;text-decoration:none;color:var(--muted)}
.nav a:hover,.nav a[aria-current="page"]{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--accent-ink)}

/* ---- frequency wave motif (signature) ---- */
.wave{display:inline-flex;align-items:flex-end;gap:3px;height:22px}
.wave i{width:5px;background:var(--accent);display:block}
.wave i:nth-child(1){height:6px}.wave i:nth-child(2){height:13px}.wave i:nth-child(3){height:22px}
.wave i:nth-child(4){height:10px}.wave i:nth-child(5){height:17px}.wave i:nth-child(6){height:22px}
.wave i:nth-child(7){height:8px}.wave i:nth-child(8){height:14px}

/* ---- window-chrome frame (signature) ---- */
.window{border:3px solid var(--line);background:var(--card);box-shadow:5px 5px 0 var(--hard)}
.window__bar{display:flex;align-items:center;gap:8px;padding:7px 10px;border-bottom:3px solid var(--line);background:var(--accent)}
.window__dots{display:inline-flex;gap:5px}
.window__dots i{width:11px;height:11px;border:2px solid var(--line);background:var(--card);display:block}
.window__title{font-family:var(--pixel);font-size:11px;color:var(--accent-on);letter-spacing:.03em}
.window__body{padding:22px}

/* ---- hero ---- */
.hero{padding-block:56px 40px}
.hero__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
.hero__grid .window{display:flex;flex-direction:column}
.hero__grid .window__body{flex:1}
.hero .window__body{padding:32px}
.hero .lead{margin-top:14px}
.hero__wave{margin-bottom:18px}
.window--narrow{max-width:780px}
@media (max-width:760px){.hero__grid{grid-template-columns:1fr}}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--pixel);font-size:13px;line-height:1;
  padding:13px 18px;border:3px solid var(--line);background:var(--card);color:var(--ink);
  text-decoration:none;cursor:pointer;box-shadow:4px 4px 0 var(--hard);transition:transform .05s,box-shadow .05s}
.btn:hover{color:var(--ink)}
.btn:active{transform:translate(4px,4px);box-shadow:0 0 0 var(--hard)}
.btn--primary{background:var(--accent-ink);color:var(--accent-on);border-color:var(--line)}
.btn--primary:hover{color:var(--accent-on);background:var(--accent)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}

/* ---- projects grid ---- */
.projects{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:24px;margin-top:24px}
.project{display:flex;flex-direction:column;height:100%}
.project a.project__link{text-decoration:none;color:var(--ink);flex:1;display:flex;flex-direction:column}
.project a.project__link .window{flex:1;display:flex;flex-direction:column}
.project .window__body{display:flex;flex-direction:column;gap:12px;flex:1}
.project__thumb{aspect-ratio:16/10;background:var(--sunken);border:3px solid var(--line);display:flex;align-items:center;justify-content:center;
  background-image:repeating-linear-gradient(45deg,var(--dither) 0 3px,transparent 0 6px)}
.project__thumb span{font-family:var(--pixel);font-size:10px;color:var(--muted)}
.project__thumb img{max-width:62%;max-height:64%;width:auto;height:auto}
.project__thumb img.thumb-icon{border:3px solid var(--line);box-shadow:4px 4px 0 var(--hard)}
.project__title{font-family:var(--pixel);font-size:15px}
.project__row{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.chip{font-family:var(--pixel);font-size:10px;padding:5px 8px;border:2px solid var(--line);background:var(--sunken);color:var(--ink)}
.chip--live{background:var(--second);color:var(--accent-on)}

/* ---- forms ---- */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-family:var(--pixel);font-size:11px}
.field input,.field textarea{font-family:var(--body);font-size:16px;color:var(--ink);background:var(--paper);
  border:3px solid var(--line);padding:11px 12px}
.field textarea{min-height:130px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--muted)}
.field input:focus,.field textarea:focus{outline:3px solid var(--focus);outline-offset:1px}
/* honeypot - visually hidden, still labelled for screen readers */
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{margin-top:10px}

/* ---- generic content page ---- */
.doc{max-width:680px}
.doc h2{margin-top:36px}
.doc h3{margin-top:26px}
.doc ul{padding-left:20px}
.doc li{margin-bottom:6px}
.datalist{list-style:none;padding:0;margin:0}
.datalist li{display:flex;gap:12px;padding:9px 0;border-bottom:2px dotted var(--line)}
.datalist b{font-family:var(--pixel);font-size:11px;min-width:130px;flex:none;padding-top:2px}

/* play badge placeholder */
.play-badge{display:inline-flex;align-items:center;gap:10px;border:3px dashed var(--line);background:var(--sunken);
  padding:12px 16px;font-family:var(--pixel);font-size:11px;color:var(--muted)}

/* ---- footer ---- */
.foot{border-top:3px solid var(--line);background:var(--card);margin-top:40px}
.foot__in{max-width:1000px;margin:0 auto;padding:28px 24px;display:flex;flex-direction:column;gap:12px}
.foot__legal{font-size:14px;color:var(--muted);line-height:1.7}
.foot__links{display:flex;gap:18px;flex-wrap:wrap}
.foot__links a{font-family:var(--pixel);font-size:11px;text-decoration:none}
.foot .wave{height:16px}
.foot .wave i:nth-child(3),.foot .wave i:nth-child(6){height:16px}

@media (max-width:560px){
  /* wider gutter; extra 5px right offsets .window's hard shadow.
     padding-inline only - a padding shorthand here would zero out
     .section/.hero vertical padding (same-specificity cascade) */
  .wrap{padding-inline:28px 33px}
  .masthead__in{padding:14px 33px 14px 28px}
  .foot__in{padding:28px 33px 28px 28px}
  .window__body{padding:18px}
  .hero .window__body{padding:22px}
  .datalist li{flex-direction:column;gap:2px}
  .datalist b{min-width:0}
}

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