/* ============================================================
   nomm — Katalog (nur auf katalog.html geladen)
   Live-Demos zu Scroll-Effekten und Buttons.
   Wie im Haupt-Stylesheet gilt: Ohne JavaScript oder bei „Bewegung
   reduzieren" stehen die Demos still und vollständig lesbar da; Effekte
   hängen an html.fx, die beiden großen Bühnen an html.scrub-on.
   ============================================================ */

/* ---------- Kopf ---------- */

.kh { padding-block: clamp(3.5rem, 8vw, 7rem) clamp(2rem, 4vw, 3rem); }
.kh h1 { font-size: clamp(2.6rem, min(8.4vw, 15svh), 7.6rem); font-weight: 800; letter-spacing: -.055em; line-height: .95; }
.kh .lede { max-width: 40rem; margin-top: clamp(1.4rem, 3vw, 2.2rem); color: var(--muted); font-size: clamp(1.05rem, 1.5vw, 1.25rem); }
.kh-nav { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2rem; list-style: none; }
.kh-nav a { display: inline-flex; align-items: center; min-height: 2.75rem; padding: 0 1.2rem; border: 1.5px solid var(--ink); border-radius: 999px; color: var(--ink); font-weight: 600; text-decoration: none; transition: background-color .25s ease, color .25s ease; }
.kh-nav a:hover, .kh-nav a:focus-visible { background: var(--ink); color: var(--cream); }

/* ---------- Abschnitte ---------- */

.ks { padding-block: clamp(3rem, 7vw, 6rem); }
.ks--dark { background: var(--espresso); color: var(--cream); }
.ks-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 1rem 3rem; margin-bottom: clamp(1.25rem, 3vw, 2.25rem); padding-bottom: 1.2rem; border-bottom: 1px solid currentColor; }
.ks-head h2 { font-size: clamp(2.1rem, 5vw, 4.4rem); font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.ks-head p { max-width: 26rem; color: var(--muted); }
.ks--dark .ks-head p { color: rgba(249, 243, 238, .78); }

/* ---------- Demo-Zeile ---------- */

.demo { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(1.5rem, 4vw, 4rem); align-items: start; padding-block: clamp(2rem, 4vw, 3.5rem); border-bottom: 1px solid var(--line); }
.demo h3, .pin-copy h3 { margin-bottom: .8rem; font-size: clamp(1.6rem, 2.8vw, 2.4rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.05; }
.demo-copy > p:not(.label), .pin-copy > p:not(.label) { color: var(--muted); }
.demo-meta { display: grid; gap: .9rem; margin: 1.3rem 0 0; }
.demo-meta dt { color: var(--copper-dark); font-family: var(--mono); font-size: .7rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.demo-meta dd { margin: .2rem 0 0; font-size: .95rem; }
@media (max-width: 899px) { .demo { grid-template-columns: minmax(0, 1fr); } }

.stage { position: relative; overflow: hidden; display: grid; place-items: center; min-height: clamp(20rem, 52vh, 29rem); border: 1px solid var(--line); border-radius: 4px; background: var(--cream-2); }
.stage--dark { border-color: transparent; background: var(--espresso-2); color: var(--cream); }
.stage--mq { display: block; padding-block: 1.5rem; }
.stage[data-readout]::after { content: attr(data-readout) " " attr(data-vp); position: absolute; left: 1rem; top: .9rem; z-index: 5; color: var(--copper-dark); font-family: var(--mono); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; pointer-events: none; }
.stage--dark[data-readout]::after { color: var(--apricot); }

/* S1: Text füllt sich */
.d-fill { max-width: 30rem; padding: 3rem 2rem; font-size: clamp(1.5rem, 2.6vw, 2.2rem); font-weight: 800; letter-spacing: -.035em; line-height: 1.12; text-wrap: balance; }

/* S2: Zeilen */
.d-lines { padding: 2rem; font-size: clamp(2rem, 4.4vw, 3.6rem); font-weight: 800; letter-spacing: -.05em; line-height: 1.05; }
.stage .xb-small { position: absolute; right: 1rem; bottom: 1rem; min-height: 2.5rem; padding: 0 1.1rem; font-size: .88rem; }

/* S3: Ebenen */
.px { position: absolute; }
.px-back { inset: 0; display: grid; place-items: center; }
.px-back svg { width: min(80%, 24rem); fill: none; stroke: var(--copper); stroke-width: 3; opacity: .5; }
.px-mid { left: 50%; top: 50%; width: 38%; aspect-ratio: 3 / 4; translate: -50% -50%; overflow: hidden; background: var(--espresso-2); }
.px-mid img { width: 100%; height: 130%; object-fit: cover; object-position: 50% 45%; }
.px-front { left: 7%; bottom: 5%; font-size: clamp(3.4rem, 10vw, 8rem); font-weight: 800; letter-spacing: -.06em; line-height: 1; color: var(--ink); }
.fx .px-back { translate: 0 calc((var(--vp, .5) - .5) * -130px); }
.fx .px-mid img { translate: 0 calc((var(--vp, .5) - .5) * -9%); }
.fx .px-front { translate: 0 calc((var(--vp, .5) - .5) * 150px); }

/* S4: Bild öffnet sich / S5: Ring öffnet sich */
.d-expand, .d-iris { position: absolute; inset: 0; }
.d-expand img, .d-iris img { width: 100%; height: 100%; object-fit: cover; }
.d-iris img { object-position: 38% 43%; }
.fx .d-expand { --k: clamp(0, calc((var(--vp, .5) - .22) / .3), 1); clip-path: inset(calc((1 - var(--k)) * 22%) calc((1 - var(--k)) * 32%) round calc((1 - var(--k)) * 90px)); }
.fx .d-expand img { transform: scale(calc(1.25 - var(--k) * .2)); }
.fx .d-iris { --k: clamp(0, calc((var(--vp, .5) - .22) / .36), 1); clip-path: circle(calc(4% + var(--k) * var(--k) * 92%) at 50% 50%); }
.fx .d-iris img { transform: scale(calc(1.5 - var(--k) * .5)); transform-origin: 38% 43%; }

/* S6: Bühne bleibt, Szene wechselt */
.pin { padding-block: clamp(2rem, 4vw, 3.5rem); border-bottom: 1px solid var(--line); background: var(--cream); }
.pin-stick { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(1.5rem, 4vw, 4rem); width: min(100% - 2 * var(--edge), var(--maxw)); margin-inline: auto; align-items: start; }
.pin-steps { display: grid; gap: .6rem; margin-top: 1.4rem; list-style: none; }
.pin-steps li { display: grid; grid-template-columns: 3.4rem minmax(0, 1fr); gap: .6rem; padding-top: .6rem; border-top: 1px solid var(--line); font-size: .95rem; }
.ps-n { color: var(--copper-dark); font-family: var(--mono); font-size: .76rem; letter-spacing: .06em; line-height: 1.9; }
.pin-stage { display: none; }
@media (max-width: 899px) { .pin-stick { grid-template-columns: minmax(0, 1fr); } .scrub-on .pin-stage { display: none; } .scrub-on .pin { height: 240svh; } }

.scrub-on .pin { height: 320svh; padding: 0; background: var(--espresso-2); color: var(--cream); border: 0; }
.scrub-on .pin-stick { position: sticky; top: var(--hh); align-items: center; height: calc(100svh - var(--hh)); }
.scrub-on .pin-copy > p:not(.label) { color: rgba(249, 243, 238, .78); }
.scrub-on .pin .label, .scrub-on .pin .demo-meta dt { color: var(--apricot); }
.scrub-on .pin-steps li { border-color: var(--line-dark); opacity: .6; transition: opacity .4s ease; }
.scrub-on .pin-steps li.is-active { opacity: 1; }
.scrub-on .ps-n { color: var(--apricot); }
.scrub-on .pin-stage { position: relative; display: grid; place-items: center; height: min(100%, 36rem); --pk: clamp(0, var(--p, 0), 1); }
.pin-ring { width: min(100%, 30rem); fill: none; stroke-width: 2; transform: rotate(-90deg); }
.pr-track { stroke: var(--line-dark); }
.pr-fill { stroke: var(--apricot); stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--pk, 0)); }
.pin-num { position: absolute; font-size: clamp(7rem, 22vw, 17rem); font-weight: 800; letter-spacing: -.06em; line-height: 1; color: var(--cream); opacity: 0; }
.pn1 { opacity: calc(1 - clamp(0, (var(--p, 0) - .28) / .06, 1)); }
.pn2 { opacity: calc(clamp(0, (var(--p, 0) - .30) / .06, 1) * (1 - clamp(0, (var(--p, 0) - .62) / .06, 1))); color: var(--apricot); }
.pn3 { opacity: clamp(0, calc((var(--p, 0) - .64) / .06), 1); }

/* S7: horizontale Strecke (nutzt die .hs-Mechanik der Startseite) */
.hz { background: var(--cream-2); border-block: 1px solid var(--line); }
.hz .hs-stick { padding-block: clamp(2.5rem, 6vw, 5rem); }
.hz-tile { position: relative; isolation: isolate; overflow: hidden; display: flex; align-items: flex-end; aspect-ratio: 3 / 4; padding: 1.2rem; border-radius: 2px; background: var(--espresso-2); color: #fff; font-size: clamp(1.4rem, 2.4vw, 2rem); font-weight: 800; letter-spacing: -.04em; line-height: 1.05; }
.hz-tile img { position: absolute; inset: 0; z-index: -2; width: 100%; height: 100%; object-fit: cover; }
.hz-tile::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(27, 18, 12, .82), rgba(27, 18, 12, 0) 55%); }
.scrub-on .hz-tile { flex: none; width: min(56vw, max(13rem, 44svh)); }
.scrub-on .hz .hs-intro { width: min(82vw, 28rem); }

/* S8: Linie zeichnet sich */
.d-draw { width: min(100%, 40rem); padding: 1rem; overflow: visible; }
.dr-line { fill: none; stroke: var(--copper); stroke-width: 3.5; stroke-linecap: round; }
.dr-node circle { fill: var(--cream); stroke: var(--copper); stroke-width: 3; }
.dr-node text { fill: var(--ink); font-family: var(--mono); font-size: 15px; letter-spacing: .06em; text-transform: uppercase; }
.fx .d-draw { --k: clamp(0, calc((var(--vp, .5) - .22) / .36), 1); }
.fx .dr-line { stroke-dasharray: 1; stroke-dashoffset: calc(1 - var(--k)); }
.fx .dr-node { opacity: clamp(.15, calc(.15 + (var(--k) - var(--t, 0)) * 12), 1); }

/* S9: Laufschrift */
.d-mq .mq-set { font-size: clamp(2.2rem, 6vw, 4.6rem); }
.d-mq .mq-row + .mq-row { margin-top: .6rem; }

/* ---------- Buttons ---------- */

.btn-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--line-dark); background: var(--line-dark); }
.bt { display: grid; grid-template-rows: minmax(11rem, auto) 1fr; background: var(--espresso); }
.bt-stage { display: grid; place-items: center; align-content: center; gap: .6rem; min-height: 11rem; padding: 2rem 1rem; background: var(--espresso-2); }
.bt-copy { padding: clamp(1.2rem, 2.2vw, 1.8rem); }
.bt-copy h3 { margin-bottom: .45rem; font-size: 1.35rem; font-weight: 800; letter-spacing: -.03em; }
.bt-copy p:not(.label) { color: rgba(249, 243, 238, .78); font-size: .96rem; }
.bt-copy .bt-care { margin-top: .6rem; color: var(--apricot); font-size: .88rem; }
.bt-copy .label { margin-bottom: .6rem; color: var(--apricot); }
@media (max-width: 959px) { .btn-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px) { .btn-grid { grid-template-columns: minmax(0, 1fr); } }

.xb {
  --c: var(--cream);
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; justify-content: center; gap: .7rem;
  min-height: 3.25rem; padding: 0 1.7rem;
  border: 1.5px solid var(--c); border-radius: 999px; background: transparent; color: var(--c);
  font: inherit; font-weight: 700; line-height: 1.2; text-decoration: none; cursor: pointer;
}
.xb-solid { background: var(--apricot); border-color: var(--apricot); color: var(--espresso); }

/* B1 magnetisch */
.xb-magnet { translate: calc(var(--mx, 0) * 1px) calc(var(--my, 0) * 1px); transition: translate .3s var(--ease); }

/* B2 Text-Roll */
.xb-roll .btn-t { display: block; height: 1.2em; overflow: hidden; }
.xb-roll .btn-t > span { display: block; height: 1.2em; transition: transform .55s var(--ease-io); }
.xb-roll:hover .btn-t > span, .xb-roll:focus-visible .btn-t > span { transform: translateY(-100%); }

/* B3 Füll-Welle */
.xb-wipe::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--apricot); clip-path: circle(0 at var(--ox, 50%) var(--oy, 50%)); transition: clip-path .65s var(--ease-io); }
.xb-wipe { transition: color .3s ease .12s; }
.xb-wipe:hover, .xb-wipe:focus-visible { color: var(--espresso); }
.xb-wipe:hover::before, .xb-wipe:focus-visible::before { clip-path: circle(150% at var(--ox, 50%) var(--oy, 50%)); }

/* B4 Pfeil-Gleiter */
.xb-arr { display: grid; width: 1.2rem; height: 1.2rem; overflow: hidden; }
.xb-arr svg { grid-area: 1 / 1; width: 1.2rem; height: 1.2rem; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; transition: transform .5s var(--ease-io); }
.xb-arr svg + svg { transform: translateX(-180%); }
.xb-arrow:hover .xb-arr svg:first-child, .xb-arrow:focus-visible .xb-arr svg:first-child { transform: translateX(180%); }
.xb-arrow:hover .xb-arr svg + svg, .xb-arrow:focus-visible .xb-arr svg + svg { transform: none; }
.xb-arrow { transition: gap .4s var(--ease), background-color .3s ease, color .3s ease; }
.xb-arrow:hover, .xb-arrow:focus-visible { gap: 1.1rem; background: var(--cream); color: var(--espresso); }

/* B5 Kontur-Lauf */
@property --a { syntax: "<angle>"; inherits: false; initial-value: 0deg; }
.xb-border {
  border: 1.5px solid transparent;
  background: linear-gradient(var(--espresso-2), var(--espresso-2)) padding-box, conic-gradient(from var(--a), rgba(244, 210, 176, .22) 0 30%, var(--apricot) 50%, rgba(244, 210, 176, .22) 70% 100%) border-box;
  animation: xb-spin 2.6s linear infinite paused;
}
.xb-border:hover, .xb-border:focus-visible { animation-play-state: running; }
@keyframes xb-spin { to { --a: 360deg; } }

/* B6 Gedrückt halten */
.xb-hold { min-width: 13rem; user-select: none; -webkit-user-select: none; touch-action: manipulation; }
.xb-hold::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--apricot); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.xb-hold.is-holding::before { transform: scaleX(1); transition: transform 1s linear; }
.xb-hold.is-holding, .xb-hold.is-done { color: var(--espresso); }
.xb-hold.is-done::before { transform: scaleX(1); transition: none; }

/* B7 Kippen */
.xb-tilt { width: min(100%, 14rem); height: 6.5rem; border: 0; border-radius: 18px; background: linear-gradient(135deg, #9B5229, #5E2C14); color: #fff; font-size: 1.1rem; letter-spacing: .02em; transform: perspective(600px) rotateX(calc(var(--rx, 0) * 1deg)) rotateY(calc(var(--ry, 0) * 1deg)); transition: transform .25s ease-out; }
.xb-tilt::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at var(--gx, 50%) var(--gy, 0%), rgba(255, 255, 255, .38), rgba(255, 255, 255, 0) 55%); pointer-events: none; }

/* B8 Zustände */
.xb-state { min-width: 11rem; }
.xs-spin, .xs-check { position: absolute; opacity: 0; }
.xs-spin { width: 1.3rem; height: 1.3rem; border: 2.5px solid rgba(249, 243, 238, .3); border-top-color: var(--cream); border-radius: 50%; }
.xs-check { width: 1.5rem; height: 1.5rem; fill: none; stroke: var(--espresso); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 1; stroke-dashoffset: 1; }
.xb-state[data-state="loading"] .xs-t, .xb-state[data-state="done"] .xs-t { opacity: 0; transform: translateY(-.6rem); }
.xs-t { transition: opacity .25s ease, transform .3s var(--ease); }
.xb-state[data-state="loading"] .xs-spin { opacity: 1; animation: xs-turn .8s linear infinite; }
.xb-state[data-state="done"] { background: var(--apricot); border-color: var(--apricot); }
.xb-state[data-state="done"] .xs-check { opacity: 1; stroke-dashoffset: 0; transition: stroke-dashoffset .5s var(--ease-io) .1s; }
@keyframes xs-turn { to { transform: rotate(360deg); } }

/* B9 Schalter */
.sw { display: inline-flex; align-items: center; gap: .9rem; min-height: 3rem; padding: 0; border: 0; background: none; color: var(--cream); font: inherit; font-weight: 600; cursor: pointer; }
.sw-track { position: relative; flex: none; width: 3.6rem; height: 2rem; border: 1.5px solid var(--cream); border-radius: 999px; transition: background-color .3s ease, border-color .3s ease; }
.sw-knob { position: absolute; left: 3px; top: 3px; width: 1.4rem; height: 1.4rem; border-radius: 50%; background: var(--cream); transition: translate .5s cubic-bezier(.34, 1.56, .64, 1), background-color .3s ease; }
.sw[aria-checked="true"] .sw-track { background: var(--apricot); border-color: var(--apricot); }
.sw[aria-checked="true"] .sw-knob { translate: 1.6rem 0; background: var(--espresso); }

/* ---------- Spielregeln ---------- */

.rules { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 clamp(1.5rem, 3vw, 3rem); list-style: none; }
.rules li { padding-block: 1.5rem 2rem; border-top: 1px solid var(--line); }
.rules h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); font-weight: 800; letter-spacing: -.035em; }
.rules p { margin-top: .5rem; color: var(--muted); }
@media (max-width: 899px) { .rules { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 599px) { .rules { grid-template-columns: minmax(0, 1fr); } }

@media (forced-colors: active) {
  .stage, .bt-stage, .xb, .sw-track { border: 2px solid ButtonText; }
}