/* JCself — layout: helle, warme Lesefläche; Kopfbereiche sind eine dunkle
   Bronzeplatte, auf der Sand Muster bildet (Chladni-Figuren). Die Startseite
   zeigt das lebendig: aus Chaos entsteht ein Muster. Die drei Sätze mit
   ≈ = ¬ stehen darauf in einer ruhigen Antiqua. */
:root {
  --paper: #f6f4f0;      /* Lesefläche */
  --card: #ffffff;
  --ink: #221c16;        /* Text */
  --muted: #6b6258;
  --line: #e1dbd1;
  --bronze: #8a5a22;     /* Akzent, Links */
  --plate: #2a2119;      /* Platte, Mitte */
  --plate-edge: #120e0a; /* Platte, Rand */
  --sand: #e2c07a;       /* Körner, Zeichen */
  --on-plate: #f6efe2;
  --on-plate-dim: #cdbfa6;
  /* Programmfenster (Seite Prinzip) */
  --blue: #1a2ee0; --red: #d8323a; --green: #16924a;
  --warn: #f2c94c;

  --f-display: "Cormorant Garamond", Garamond, "Times New Roman", serif;
  --f-body: "Source Sans 3", "Segoe UI", Arial, sans-serif;
  --f-mono: ui-monospace, Consolas, Menlo, monospace;

  --s-1: .25rem; --s-2: .5rem; --s-3: 1rem; --s-4: 1.5rem; --s-5: 2.5rem; --s-6: 4rem; --s-7: 6rem;
  --measure: 64ch;
  --wrap: 68rem;
  color-scheme: light;
}

@font-face { font-family: "Cormorant Garamond"; font-weight: 500; font-display: swap; src: url(fonts/cormorant-garamond-latin-500-normal.woff2) format("woff2"); }
@font-face { font-family: "Cormorant Garamond"; font-weight: 500; font-style: italic; font-display: swap; src: url(fonts/cormorant-garamond-latin-500-italic.woff2) format("woff2"); }
@font-face { font-family: "Cormorant Garamond"; font-weight: 600; font-display: swap; src: url(fonts/cormorant-garamond-latin-600-normal.woff2) format("woff2"); }
@font-face { font-family: "Source Sans 3"; font-weight: 400; font-display: swap; src: url(fonts/source-sans-3-latin-400-normal.woff2) format("woff2"); }
@font-face { font-family: "Source Sans 3"; font-weight: 400; font-style: italic; font-display: swap; src: url(fonts/source-sans-3-latin-400-italic.woff2) format("woff2"); }
@font-face { font-family: "Source Sans 3"; font-weight: 600; font-display: swap; src: url(fonts/source-sans-3-latin-600-normal.woff2) format("woff2"); }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.125rem/1.7 var(--f-body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; }
a { color: var(--bronze); text-underline-offset: .2em; text-decoration-thickness: 1px; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--bronze); outline-offset: 3px; border-radius: 2px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: max(16px, 5vw); }

/* ---------- logic signs ---------- */
.op { display: inline-block; width: .8em; height: .8em; flex: none; color: var(--sand); vertical-align: -.02em; }
.op svg { display: block; width: 100%; height: 100%; }

/* ---------- header ---------- */
.site-head { position: absolute; top: 0; left: 0; right: 0; z-index: 10; color: var(--on-plate); }
.site-head .wrap { display: flex; align-items: center; gap: var(--s-4); min-height: 4.5rem; }
.brand { font: 600 1.75rem/1 var(--f-display); color: var(--on-plate); text-decoration: none; display: inline-flex; align-items: center; gap: .2em; }
.brand:hover { color: var(--sand); }
.brand-op .op { width: .7em; height: .7em; }
.nav { display: flex; gap: var(--s-4); margin-left: auto; flex-wrap: wrap; }
.nav a { color: var(--on-plate-dim); text-decoration: none; font-size: 1.02rem; padding-block: .3rem; border-bottom: 1px solid transparent; }
.nav a:hover { color: var(--on-plate); }
.nav a[aria-current="page"] { color: var(--on-plate); border-bottom-color: var(--sand); }
.lang { font: 600 .82rem/1 var(--f-body); letter-spacing: .08em; color: var(--on-plate-dim); text-decoration: none; border: 1px solid rgb(226 192 122 / .4); padding: .45rem .6rem; border-radius: 2rem; }
.lang:hover { color: var(--on-plate); border-color: var(--sand); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid rgb(226 192 122 / .4); color: var(--on-plate); font: 600 .95rem var(--f-body); padding: .45rem .9rem; border-radius: 2rem; cursor: pointer; }
@media (max-width: 56rem) {
  .menu-btn { display: inline-block; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--plate-edge); padding: var(--s-2) max(16px, 5vw) var(--s-4); }
  .nav.open { display: flex; }
  .nav a { padding-block: .75rem; border-bottom: 1px solid rgb(226 192 122 / .15); }
}

/* ---------- type ---------- */
h1, h2, h3 { font-family: var(--f-display); font-weight: 600; line-height: 1.08; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); }
h3 { font-size: 1.5rem; }
p { margin: 0; max-width: var(--measure); }
.lead { font-size: 1.25rem; line-height: 1.6; max-width: 56ch; }
.eyebrow { font: 600 .82rem/1.2 var(--f-body); letter-spacing: .14em; text-transform: uppercase; color: var(--bronze); }
code, kbd { font-family: var(--f-mono); font-size: .88em; }
code { background: var(--card); border: 1px solid var(--line); padding: .05em .35em; border-radius: 3px; }
.flow > * + * { margin-top: var(--s-3); }
.flow > h2 + *, .flow > h3 + * { margin-top: var(--s-2); }
.flow > * + h2 { margin-top: var(--s-6); }
.flow > * + h3 { margin-top: var(--s-5); }
.term { font-weight: 600; }
ul.clean { margin: 0; padding-left: 1.2em; max-width: var(--measure); }
ul.clean li + li { margin-top: .35em; }
.fill { background: var(--warn); padding: 0 .3em; font-weight: 600; border-radius: 2px; }

/* ---------- the plate (hero + page heads) ---------- */
.hero, .page-head { position: relative; isolation: isolate; overflow: hidden; color: var(--on-plate);
  background: radial-gradient(120% 90% at 50% 45%, var(--plate) 0%, var(--plate-edge) 100%); }
canvas.plate { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero::after, .page-head::after { content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgb(18 14 10 / .72) 0%, rgb(18 14 10 / .35) 55%, rgb(18 14 10 / .1) 100%); }
.hero h1, .hero h2, .page-head h1 { color: var(--on-plate); }
.page-head { padding-block: calc(4.5rem + var(--s-6)) var(--s-6); }
.page-head .wrap { display: grid; gap: var(--s-3); }
.page-head .eyebrow { color: var(--sand); }
.page-head .lead { color: var(--on-plate-dim); }
main { padding-bottom: var(--s-7); }
.section { padding-block: var(--s-7) 0; }

/* ---------- hero ---------- */
.hero { padding-block: calc(4.5rem + var(--s-7)) var(--s-6); }
.hero-inner { display: grid; gap: var(--s-5); }
.statement { font-size: clamp(2.7rem, 7vw, 5.8rem); font-weight: 600; line-height: 1.02; max-width: 15ch; }
.statement .op { width: .72em; height: .72em; margin-inline: .12em .2em; }
.statement .pred { font-weight: 500; }
.pair { display: grid; gap: var(--s-3) var(--s-5); max-width: 56rem; }
@media (min-width: 48rem) { .pair { grid-template-columns: 1fr 1fr; } }
.rel { font: 500 clamp(1.45rem, 2.6vw, 2rem)/1.2 var(--f-display); color: var(--on-plate); display: flex; flex-wrap: wrap; align-items: baseline; column-gap: .3em; max-width: none; }
.rel .subj { font-weight: 600; }
.rel .op { width: .75em; height: .75em; align-self: center; }
.rel .pred { flex-basis: 100%; font-style: italic; color: var(--on-plate-dim); padding-left: 1.2em; }
.hero-foot { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3) var(--s-4); margin-top: var(--s-3); }
.caption { font-size: .98rem; color: var(--on-plate-dim); max-width: 52ch; }

.btn { display: inline-flex; align-items: center; gap: .6em; font: 600 1rem/1 var(--f-body); color: var(--plate-edge); background: var(--sand); border: 1px solid var(--sand); padding: .85rem 1.3rem; border-radius: 2rem; cursor: pointer; text-decoration: none; }
.btn:hover { background: var(--on-plate); border-color: var(--on-plate); color: var(--plate-edge); }
.btn .dot { width: .55em; height: .55em; border-radius: 50%; background: currentColor; }
.btn[aria-pressed="true"] .dot { animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .2; } }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--bronze); color: var(--bronze); background: transparent; }
main .btn:not(.ghost):not(.hero .btn) { background: var(--ink); border-color: var(--ink); color: var(--paper); }
main .btn:not(.ghost):not(.hero .btn):hover { background: var(--bronze); border-color: var(--bronze); }

/* ---------- home: idea, triptych, paths ---------- */
.split { display: grid; gap: var(--s-4) var(--s-6); }
@media (min-width: 54rem) { .split { grid-template-columns: 5fr 7fr; align-items: start; } }
.triptych { display: grid; gap: var(--s-5); margin-top: var(--s-5); }
@media (min-width: 50rem) { .triptych { grid-template-columns: repeat(3, 1fr); gap: var(--s-4); } }
.triptych figure { margin: 0; display: grid; gap: var(--s-3); align-content: start; justify-items: center; text-align: center; min-width: 0; }
.triptych canvas.mini { position: static; display: block; width: min(100%, 17rem); height: auto; aspect-ratio: 1; border-radius: 50%;
  background: radial-gradient(circle at 45% 40%, #3a2c1f 0%, var(--plate) 45%, var(--plate-edge) 100%);
  box-shadow: inset 0 0 0 6px rgb(226 192 122 / .12), 0 14px 30px -18px rgb(34 28 22 / .6); z-index: auto; }
.triptych figcaption { display: grid; gap: var(--s-2); justify-items: center; }
.triptych figcaption p { color: var(--muted); max-width: 30ch; }
.triptych .mid h3 { color: var(--bronze); }
.paths { display: grid; gap: 0; border-top: 1px solid var(--line); }
.paths a { display: grid; grid-template-columns: minmax(0, 16rem) minmax(0, 1fr) auto; gap: var(--s-2) var(--s-4); align-items: baseline; padding: var(--s-4) 0; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.paths a::after { content: "→"; color: var(--bronze); }
.paths a:hover h3 { color: var(--bronze); }
.paths p { color: var(--muted); }
@media (max-width: 44rem) { .paths a { grid-template-columns: minmax(0, 1fr) auto; } .paths p { grid-column: 1; } }

/* ---------- program window (Prinzip) ---------- */
.scope { background: var(--card); border: 1px solid var(--line); border-radius: 6px; overflow: hidden; box-shadow: 0 14px 30px -20px rgb(34 28 22 / .5); max-width: none; }
.scope canvas { display: block; width: 100%; height: clamp(13rem, 28vw, 19rem); }
.scope-bar { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3) var(--s-4); padding: var(--s-3); border-top: 1px solid var(--line); }
.readout { flex-basis: 100%; display: flex; flex-wrap: wrap; gap: var(--s-1) var(--s-4); font-size: .92rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.readout b { color: var(--ink); font-weight: 600; }
.key { display: inline-flex; align-items: center; gap: .45em; }
.key i { width: 1em; height: 3px; display: inline-block; }
.key .k-cur { background: var(--blue); } .key .k-seed { background: var(--green); } .key .k-peak { background: var(--red); }
.controls { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-4); align-items: center; margin-left: auto; }
.controls label { font-size: .92rem; color: var(--muted); display: flex; align-items: center; gap: .5em; }
.controls input[type=range] { width: 6.5rem; accent-color: var(--bronze); }
.controls input[type=checkbox] { accent-color: var(--bronze); }

/* ---------- docs ---------- */
.docs { display: grid; gap: var(--s-5); padding-top: var(--s-5); }
@media (min-width: 60rem) { .docs { grid-template-columns: 13rem minmax(0, 1fr); } }
.toc { align-self: start; }
@media (min-width: 60rem) { .toc { position: sticky; top: var(--s-4); } }
.toc ol { list-style: none; margin: var(--s-2) 0 0; padding: 0; display: grid; gap: 2px; }
.toc a { display: block; text-decoration: none; color: var(--ink); padding: .35rem .7rem; border-left: 2px solid var(--line); }
.toc a:hover { color: var(--bronze); border-left-color: var(--bronze); }
.docs article { min-width: 0; }
.field { display: grid; gap: var(--s-1); padding-block: var(--s-3); border-top: 1px solid var(--line); max-width: var(--measure); }
@media (min-width: 44rem) { .field { grid-template-columns: 13rem minmax(0, 1fr); gap: var(--s-4); } }
.field dt { font-weight: 600; }
.field dd { margin: 0; }
.note { border-left: 3px solid var(--bronze); background: var(--card); padding: var(--s-3); max-width: var(--measure); }
.table-scroll { overflow-x: auto; max-width: 100%; }
table.iv { border-collapse: collapse; font-size: 1rem; min-width: 26rem; background: var(--card); }
table.iv th, table.iv td { text-align: left; padding: .45rem .8rem; border-bottom: 1px solid var(--line); }
table.iv th { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
table.iv td:first-child { color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- listen ---------- */
.tracks { display: grid; gap: 0; margin-top: var(--s-4); border-top: 1px solid var(--line); }
.track { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr); gap: var(--s-1) var(--s-4); align-items: center; padding-block: var(--s-3); border-bottom: 1px solid var(--line); }
.track h3 { font-size: 1.35rem; }
.track .meta { grid-column: 2; font-size: .82rem; color: var(--muted); overflow-wrap: anywhere; }
.track audio { width: 100%; height: 2.4rem; }
@media (max-width: 40rem) { .track { grid-template-columns: minmax(0, 1fr); } .track .meta { grid-column: 1; } }
.video-slot { margin-top: var(--s-4); background: var(--card); border: 1px solid var(--line); aspect-ratio: 16 / 9; max-width: 100%; display: grid; place-items: center; text-align: center; padding: var(--s-4); border-radius: 6px; }
.video-slot .inner { display: grid; gap: var(--s-3); justify-items: center; max-width: 44ch; }
.video-slot p { color: var(--muted); font-size: .95rem; }
.video-slot iframe { width: 100%; height: 100%; border: 0; }
.video-slot.loaded { padding: 0; }

/* ---------- download ---------- */
.steps { counter-reset: s; list-style: none; padding: 0; margin: var(--s-4) 0 0; display: grid; gap: var(--s-3); max-width: var(--measure); }
.steps li { counter-increment: s; display: grid; grid-template-columns: 2.4rem minmax(0,1fr); gap: var(--s-3); align-items: baseline; }
.steps li::before { content: counter(s); font: 600 1.6rem/1 var(--f-display); color: var(--bronze); }
.download-card { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--s-3) var(--s-4); background: var(--card); border: 1px solid var(--line); padding: var(--s-4); margin-top: var(--s-4); max-width: var(--measure); border-radius: 6px; }
.download-card .meta { font-size: .95rem; color: var(--muted); }
pre { background: var(--card); border: 1px solid var(--line); padding: var(--s-3); overflow-x: auto; max-width: 100%; font: 400 .92rem/1.5 var(--f-mono); border-radius: 4px; }

/* ---------- people ---------- */
.people { display: grid; gap: var(--s-5); margin-top: var(--s-2); }
@media (min-width: 48rem) { .people { grid-template-columns: 1fr 1fr; } }
.person { border-top: 1px solid var(--ink); padding-top: var(--s-3); display: grid; gap: var(--s-2); align-content: start; min-width: 0; }
.person h3 { font-size: 1.8rem; }
.person .role { color: var(--bronze); font-style: italic; font-family: var(--f-display); font-size: 1.25rem; }
.person dl { margin: var(--s-2) 0 0; display: grid; grid-template-columns: auto minmax(0,1fr); gap: .3rem var(--s-3); }
.person dt { color: var(--muted); }
.person dd { margin: 0; overflow-wrap: anywhere; }

/* ---------- footer ---------- */
.site-foot { background: var(--plate-edge); color: var(--on-plate-dim); padding-block: var(--s-5); font-size: .95rem; }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-5); align-items: baseline; }
.site-foot nav { display: flex; gap: var(--s-4); flex-wrap: wrap; margin-left: auto; }
.site-foot a { color: var(--on-plate); }