/* Patefact Website — Patch Bay / XLR Jack Field
   Farben aus dem App-eigenen Dark-/Light-Theme abgeleitet, nicht erfunden
   (siehe DESIGN.md). Zwei eigens komponierte Themes, keine Umkehrung. */

@font-face{
  font-family:'Big Shoulders';font-style:normal;font-weight:500 800;font-display:swap;
  src:url(../fonts/BigShoulders.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122;
}
@font-face{
  font-family:'Public Sans';font-style:normal;font-weight:400 600;font-display:swap;
  src:url(../fonts/PublicSans.woff2) format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122;
}

:root{
  /* light (default) — composed for a white ground, not a dark-theme inversion */
  --bg:#ffffff; --bg-soft:#f7f9fb; --panel:#f0f4f8; --panel-2:#e6edf3;
  --border:#c0d0e0; --border-soft:#dce6ef;
  --text:#12202c; --text-dim:#3f5b74; --text-faint:#8aa2b8;
  --accent:#0d9488; --accent-dim:#d7f0ec;
  --accent2:#2563eb; --accent2-dim:#6b8fc2;
  --warm:#c2410c; --warm-dim:#fce4d6;
  --screw-a:#c7d2dc; --screw-b:#7c8b9a;
  --glow:rgba(13,148,136,.06); --scanline:rgba(18,32,44,.025);
  --radius:3px;
  --font-display:'Big Shoulders',system-ui,sans-serif;
  --font-body:'Public Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:ui-monospace,'SF Mono',Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0f1b26; --bg-soft:#13212e; --panel:#16283a; --panel-2:#1c3247;
    --border:#2b4a66; --border-soft:#1f3850;
    --text:#f2f6f9; --text-dim:#93acc2; --text-faint:#5b7690;
    --accent:#0d9488; --accent-dim:#12332f;
    --accent2:#2563eb; --accent2-dim:#35547a;
    --warm:#d97757; --warm-dim:#402a1f;
    --screw-a:#6b5f4c; --screw-b:#241f19;
    --glow:rgba(13,148,136,.10); --scanline:rgba(255,255,255,.012);
  }
}
:root[data-theme="dark"]{
  --bg:#0f1b26; --bg-soft:#13212e; --panel:#16283a; --panel-2:#1c3247;
  --border:#2b4a66; --border-soft:#1f3850;
  --text:#f2f6f9; --text-dim:#93acc2; --text-faint:#5b7690;
  --accent:#0d9488; --accent-dim:#12332f;
  --accent2:#2563eb; --accent2-dim:#35547a;
  --warm:#d97757; --warm-dim:#402a1f;
  --screw-a:#6b5f4c; --screw-b:#241f19;
  --glow:rgba(13,148,136,.10); --scanline:rgba(255,255,255,.012);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background-color .25s ease,color .25s ease;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, var(--glow), transparent),
    repeating-linear-gradient(180deg, var(--scanline) 0px, var(--scanline) 1px, transparent 1px, transparent 3px);
}
::selection{background:var(--accent);color:#fff}
a{color:var(--accent2)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}

h1,h2,h3{font-family:var(--font-display);font-weight:700;letter-spacing:.01em;margin:0 0 .5rem;color:var(--text)}
h1{font-size:clamp(2.4rem,5.5vw,4.1rem);line-height:1.02;text-transform:uppercase}
h2{font-size:clamp(1.7rem,3.4vw,2.5rem);text-transform:uppercase}
h3{font-size:1.2rem;text-transform:uppercase;letter-spacing:.02em}
p{margin:0 0 1rem;max-width:62ch}
.lead{font-size:1.13rem;color:var(--text-dim);max-width:56ch}
.muted{color:var(--text-dim)}
.small{font-size:.88rem}
.eyebrow{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--accent2);margin-bottom:1rem}
.chan-num{font-family:var(--font-mono);color:var(--accent2);font-size:.8rem;letter-spacing:.04em}

section{padding:4.5rem 0}
.section-head{max-width:70ch;margin-bottom:2.6rem}
.section-head h2{margin-bottom:.9rem}

/* ---------- rack-mount corner screws, used on framed panels ---------- */
.panel-frame{position:relative;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius)}
.panel-frame::before,.panel-frame::after,.panel-frame .scr-tr,.panel-frame .scr-bl{
  content:"";position:absolute;width:7px;height:7px;border-radius:50%;
  background:radial-gradient(circle at 35% 35%, var(--screw-a), var(--screw-b) 70%);
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.4);
}
.panel-frame::before{top:8px;left:8px}
.panel-frame::after{bottom:8px;right:8px}
.panel-frame .scr-tr{top:8px;right:8px}
.panel-frame .scr-bl{bottom:8px;left:8px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.7rem 1.3rem;border-radius:20px;
  font-family:var(--font-mono);font-size:.85rem;letter-spacing:.03em;text-decoration:none;
  border:1px solid var(--border);transition:transform .15s ease, border-color .15s ease}
.btn::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--text-faint);
  box-shadow:0 0 0 2px var(--border-soft)}
.btn-primary{background:var(--accent-dim);color:var(--text);border-color:var(--accent)}
.btn-primary::before{background:var(--accent);box-shadow:0 0 8px var(--accent),0 0 0 2px var(--accent-dim)}
.btn-ghost{color:var(--text-dim);background:var(--bg-soft)}
.btn:hover{transform:translateY(-1px);border-color:var(--accent2);text-decoration:none}
.btn.small{padding:.5rem .9rem;font-size:.78rem}
.btn-row{display:flex;gap:.9rem;flex-wrap:wrap;margin-top:1.6rem}

/* ---------- header ---------- */
.site-head{position:sticky;top:0;z-index:40;background:color-mix(in srgb, var(--bg) 92%, transparent);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border-soft)}
.site-head .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:1.2rem}
.brand{font-family:var(--font-display);font-weight:800;font-size:1.3rem;text-transform:uppercase;
  color:var(--text);text-decoration:none;letter-spacing:.02em}
.brand:hover{text-decoration:none}
.brand::before{content:"CH ";color:var(--accent2);font-family:var(--font-mono);font-size:.7rem;
  vertical-align:middle;letter-spacing:.1em}
.nav{display:flex;gap:1.6rem;margin-right:auto;margin-left:2.4rem}
.nav a{color:var(--text-dim);text-decoration:none;font-size:.9rem;font-family:var(--font-mono)}
.nav a:hover{color:var(--accent);text-decoration:none}
@media (max-width:780px){.nav{display:none}}

.lang-switch{display:inline-flex;align-items:center;background:none;text-decoration:none;
  border:1px solid var(--border);border-radius:20px;padding:.4rem .8rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.05em;color:var(--text-dim)}
.lang-switch:hover{border-color:var(--accent2);color:var(--accent2);text-decoration:none}

.theme-toggle{display:inline-flex;align-items:center;gap:.55rem;background:none;cursor:pointer;
  border:1px solid var(--border);border-radius:20px;padding:.35rem .8rem .35rem .35rem;
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.05em;color:var(--text-dim)}
.theme-toggle:hover{border-color:var(--accent2)}
.theme-toggle .tt-track{width:32px;height:17px;border-radius:10px;background:var(--panel-2);
  border:1px solid var(--border);position:relative;flex:none}
.theme-toggle .tt-thumb{position:absolute;top:1px;left:1px;width:13px;height:13px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 5px var(--accent);transition:transform .2s ease}
.theme-toggle[data-mode="dark"] .tt-thumb{transform:translateX(15px)}

/* ---------- hero ---------- */
.hero{padding:5rem 0 4rem}
.hero .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}}
.hero-shot{padding:20px}
.hero-shot img{border-radius:2px}

/* ---------- signature patch animation (homepage only) ---------- */
.patch-panel{padding:24px 20px 30px}
.patch-panel svg{width:100%;height:auto;display:block}
.jack{fill:var(--panel-2);stroke:var(--border);stroke-width:1}
.jack-ring{fill:none;stroke:var(--accent2-dim);stroke-width:2}
.jack-lbl{font-family:var(--font-mono);font-size:5px;fill:var(--text-faint);letter-spacing:.05em}
.cable{fill:none;stroke:var(--accent);stroke-width:2.4;stroke-linecap:round;
  stroke-dasharray:200;stroke-dashoffset:200;opacity:0;filter:drop-shadow(0 0 3px rgba(13,148,136,.5))}
.cable.amber{stroke:var(--accent2);filter:drop-shadow(0 0 3px rgba(37,99,235,.5))}
.reveal .cable{animation:patchin 1.1s cubic-bezier(.16,1,.3,1) forwards}
.reveal .cable.c2{animation-delay:.45s}
@keyframes patchin{0%{opacity:0;stroke-dashoffset:200}15%{opacity:1}100%{opacity:1;stroke-dashoffset:0}}
.jack-lit{fill:var(--bg);stroke:var(--accent2-dim);stroke-width:2;opacity:0}
.reveal .jack-lit{animation:litup .3s ease forwards}
.reveal .jack-lit.j1{animation-delay:.05s}
.reveal .jack-lit.j2{animation-delay:1.1s}
.reveal .jack-lit.j3{animation-delay:.5s}
.reveal .jack-lit.j4{animation-delay:1.5s}
@keyframes litup{to{opacity:1;stroke:var(--accent)}}

/* ---------- reveal-on-scroll (homepage only) ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s cubic-bezier(.16,1,.3,1),transform .6s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}
html:not(.js) .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1 !important;transform:none !important;transition:none !important}
  .cable,.jack-lit,.mx-link{animation:none !important;opacity:1 !important}
}

/* ---------- channel list = feature list ---------- */
.chanlist{border-top:1px solid var(--border-soft)}
.chanrow{display:grid;grid-template-columns:70px 1fr;gap:1.4rem;padding:1.3rem 0;
  border-bottom:1px solid var(--border-soft)}
.chanrow .chan-num{font-size:1.05rem;padding-top:.15rem}
.chanrow h3{margin-bottom:.3rem;font-size:1.05rem}
.chanrow p{margin:0;font-size:.95rem;color:var(--text-dim);max-width:60ch}

/* ---------- use-case sticky ---------- */
.sticky-sec{display:grid;grid-template-columns:1fr 1.05fr;gap:3rem;align-items:start}
@media (max-width:900px){.sticky-sec{grid-template-columns:1fr}}
.sticky-media{position:sticky;top:90px;padding:16px}
@media (max-width:900px){.sticky-media{position:static}}
.usecase{padding:1.6rem 0;border-top:1px solid var(--border-soft)}
.usecase:last-child{border-bottom:1px solid var(--border-soft)}
.usecase h3{color:var(--accent)}

/* ---------- matrix problem-illustration ---------- */
.matrix-demo{display:grid;grid-template-columns:.9fr 1.1fr;gap:3rem;align-items:center}
@media (max-width:900px){.matrix-demo{grid-template-columns:1fr}}
.mx-grid line{stroke:var(--border);stroke-width:.5}
.mx-tx circle,.mx-rx circle{fill:var(--text-faint)}
.mx-label{font-family:var(--font-mono);font-size:4.4px;fill:var(--text-faint);letter-spacing:.05em}
.mx-trace{stroke:var(--accent2-dim);stroke-width:.6;stroke-dasharray:2 2}
.mx-link{fill:var(--bg);stroke:var(--accent);stroke-width:1.4;opacity:0}
.reveal .mx-link{animation:mxlink .35s ease forwards}
.reveal .mx-link[style*="--i:0"]{animation-delay:.1s}
.reveal .mx-link[style*="--i:1"]{animation-delay:.28s}
.reveal .mx-link[style*="--i:2"]{animation-delay:.46s}
.reveal .mx-link[style*="--i:3"]{animation-delay:.64s}
.reveal .mx-link[style*="--i:4"]{animation-delay:.82s}
.reveal .mx-link[style*="--i:5"]{animation-delay:1s}
.reveal .mx-link[style*="--i:6"]{animation-delay:1.18s}
.reveal .mx-link[style*="--i:7"]{animation-delay:1.36s}
@keyframes mxlink{to{opacity:1}}

/* ---------- how-to = signal chain ---------- */
.chain{display:flex;flex-direction:column;border:1px solid var(--border-soft);border-radius:var(--radius);overflow:hidden;margin-top:1rem}
.chain-step{display:grid;grid-template-columns:90px 1fr;gap:1.3rem;padding:1.4rem 1.6rem;
  border-bottom:1px solid var(--border-soft);align-items:start}
.chain-step:last-child{border-bottom:none}
.chain-step .chan-num{font-size:1.4rem;color:var(--accent2)}
.chain-step h3{margin-bottom:.35rem;font-size:1rem}
.chain-step p{margin:0;font-size:.93rem;color:var(--text-dim)}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem;margin-top:2rem}
@media (max-width:780px){.plans{grid-template-columns:1fr}}
.plan{padding:1.8rem}
.plan h3{display:flex;align-items:center;gap:.6rem}
.plan h3::before{content:"";width:10px;height:10px;border-radius:50%;background:var(--text-faint);box-shadow:0 0 0 2px var(--border-soft)}
.plan.is-featured{border-color:var(--warm)}
.plan.is-featured h3::before{background:var(--warm);box-shadow:0 0 8px var(--warm),0 0 0 2px var(--warm-dim)}
.price{font-family:var(--font-display);font-size:2.6rem;font-weight:700;margin:.6rem 0}
.plan ul{list-style:none;margin:1.2rem 0 0;padding:0}
.plan li{padding:.5rem 0;border-top:1px solid var(--border-soft);font-size:.92rem;color:var(--text-dim)}
.plan li:first-child{border-top:none}

/* ---------- faq ---------- */
.faq{max-width:74ch}
.faq details{border-bottom:1px solid var(--border-soft);padding:1.1rem 0}
.faq summary{cursor:pointer;font-family:var(--font-display);text-transform:uppercase;font-size:.98rem;letter-spacing:.01em;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq details p{margin-top:.7rem;color:var(--text-dim);font-size:.95rem}

.cta-box{padding:3.2rem 2.4rem;text-align:center}
.cta-box h2{margin-bottom:.8rem}
.cta-box .lead{max-width:52ch;margin-left:auto;margin-right:auto}

.banner{background:var(--accent2);color:#fff;text-align:center;padding:.55rem 1rem;
  font-family:var(--font-mono);font-size:.82rem;letter-spacing:.02em}

/* ---------- footer ---------- */
.site-foot{border-top:1px solid var(--border-soft);padding:3rem 0 2.4rem;margin-top:2rem}
.foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:2rem;padding-bottom:2rem;border-bottom:1px solid var(--border-soft)}
.foot-links{display:flex;flex-wrap:wrap;gap:1.4rem}
.foot-links a{color:var(--text-dim);text-decoration:none;font-size:.9rem}
.foot-links a:hover{color:var(--accent);text-decoration:none}
.disclaimer{color:var(--text-faint);max-width:80ch;margin-top:2rem;line-height:1.6}

/* ==================================================================
   Anleitung / Manual — documentation layout
   ================================================================== */

.doc{display:grid;grid-template-columns:240px 1fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
@media (max-width:960px){.doc{grid-template-columns:1fr}}

.toc{position:sticky;top:96px;font-size:.93rem}
@media (max-width:960px){
  .toc{position:static;background:var(--panel);border:1px solid var(--border);
       border-radius:var(--radius);padding:1.4rem 1.6rem}
}
.toc h2{font-family:var(--font-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--accent2);margin-bottom:1rem;font-weight:600}
.toc ol{list-style:none;padding:0;margin:0;counter-reset:kapitel}
.toc li{counter-increment:kapitel;margin-bottom:.55rem}
.toc a{color:var(--text-dim);text-decoration:none;display:flex;gap:.6rem;line-height:1.4;font-size:.92rem}
.toc a::before{content:counter(kapitel,decimal-leading-zero);color:var(--accent2);flex:none;font-family:var(--font-mono);font-size:.82rem}
.toc a:hover{color:var(--accent);text-decoration:none}

.kap{scroll-margin-top:96px;padding-top:1rem}
.kap + .kap{margin-top:clamp(3.5rem,7vw,6rem);border-top:1px solid var(--border-soft);padding-top:clamp(2.5rem,5vw,4rem)}
.kap h2{font-size:clamp(1.5rem,2.8vw,2.1rem)}
.kap h3{margin-top:2.2rem;font-size:1.05rem}
.kap p{color:var(--text-dim);max-width:72ch}
.kap ul,.kap ol{color:var(--text-dim);max-width:72ch;line-height:1.8;padding-left:1.3rem}
.kap li{margin-bottom:.4rem}
.kap figure{margin:2rem 0 0}
.kap figure img{border-radius:var(--radius);border:1px solid var(--border)}
.kap figcaption{font-size:.88rem;color:var(--text-faint);margin-top:.8rem;font-family:var(--font-mono)}
.kap table{width:100%;border-collapse:collapse;margin:1.6rem 0;font-size:.95rem}
.kap th,.kap td{text-align:left;padding:.65rem .9rem;border-bottom:1px solid var(--border-soft)}
.kap th{color:var(--text);font-family:var(--font-mono);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.03em}
.kap td{color:var(--text-dim)}
.kap td:first-child{white-space:nowrap}

/* numbered handgriffe, using the chan-num vocabulary instead of round badges */
.schritte{counter-reset:schritt2;list-style:none;padding:0}
.schritte li{counter-increment:schritt2;position:relative;padding-left:2.6rem;margin-bottom:1rem}
.schritte li::before{
  content:counter(schritt2,decimal-leading-zero);
  position:absolute;left:0;top:.05rem;
  width:1.75rem;height:1.75rem;border-radius:3px;
  background:var(--accent-dim);color:var(--accent);border:1px solid var(--accent);
  display:grid;place-items:center;font-family:var(--font-mono);font-size:.78rem;font-weight:600}

kbd{
  font-family:var(--font-mono);font-size:.82rem;font-weight:600;
  background:var(--panel-2);color:var(--text);
  border:1px solid var(--border);border-bottom-width:2px;
  border-radius:4px;padding:.12rem .45rem;white-space:nowrap}

.hinweis{
  border-left:3px solid var(--accent);background:var(--accent-dim);
  border-radius:0 var(--radius) var(--radius) 0;padding:1rem 1.3rem;margin:1.6rem 0;max-width:72ch}
.hinweis.warn{border-left-color:var(--warm);background:var(--warm-dim)}
.hinweis p{margin:0;color:var(--text-dim);font-size:.96rem}
.hinweis strong{color:var(--text)}