/* ==========================================================
   sections.css – Die großen Scroll-Szenen der Startseite:
   Hero, Worte, Galerie (Meine Bücher), 3D-Buch, Video,
   Laufband und Abschluss-Bereich.
   ========================================================== */

/* Sticky-Szenen */
.scene{position:relative}
.sticky{position:sticky;top:0;height:100vh;height:100dvh;overflow:hidden;display:flex;align-items:center;justify-content:center}

/* 1. Hero */
.hero{height:340vh}
.hero .sticky{flex-direction:column;background:radial-gradient(ellipse at 50% 40%,#2a1f3d 0%,var(--dark) 68%)}
.blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.5;pointer-events:none;will-change:transform}
.blob.b1{width:36vmax;height:36vmax;background:var(--coral);left:-8vmax;top:8vh;opacity:.38}
.blob.b2{width:32vmax;height:32vmax;background:var(--violet);right:-8vmax;top:-6vh;opacity:.42}
.blob.b3{width:28vmax;height:28vmax;background:var(--teal);right:12vw;bottom:-12vh;opacity:.32}
.glow{position:absolute;inset:0;pointer-events:none;background:radial-gradient(420px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.09),transparent 60%)}
.mand{position:absolute;left:50%;top:47%;width:min(70vh,90vw);height:min(70vh,90vw);margin:calc(min(70vh,90vw)/-2) 0 0 calc(min(70vh,90vw)/-2);will-change:transform}
.mand svg{width:100%;height:100%;overflow:visible;filter:drop-shadow(0 0 30px rgba(255,140,110,.18))}
.hero-txt{position:relative;text-align:center;padding:0 6vw;will-change:transform,opacity;z-index:2}
.eyebrow{font-size:clamp(12px,1.4vw,15px);letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:18px}
.hero-txt h1{font-size:clamp(46px,9vw,124px);line-height:1;letter-spacing:-.035em;font-weight:600;background:linear-gradient(120deg,#fff 0%,#ffe1c9 40%,#ffb9d0 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-txt .lead{font-size:clamp(17px,2vw,24px);color:var(--mut-d);margin-top:22px;max-width:640px;margin-left:auto;margin-right:auto}
.hero-end{position:absolute;left:0;right:0;bottom:5vh;text-align:center;padding:0 6vw;opacity:0;z-index:3}
.hero-end h2{font-size:clamp(28px,4.6vw,58px);letter-spacing:-.02em;margin-bottom:20px;text-shadow:0 4px 30px rgba(0,0,0,.6)}
.hint{position:absolute;bottom:4vh;left:50%;transform:translateX(-50%);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--mut-d);display:flex;flex-direction:column;align-items:center;gap:10px;z-index:3}
.hint span{width:1px;height:38px;background:linear-gradient(var(--gold),transparent);animation:drip 1.8s ease-in-out infinite}
@keyframes drip{0%{transform:scaleY(0);transform-origin:top}50%{transform:scaleY(1);transform-origin:top}51%{transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}

/* 2. Worte */
.words{height:260vh}
.words .sticky{background:var(--dark);padding:0 7vw}
.words p{max-width:1000px;font-family:var(--serif);font-size:clamp(28px,5.2vw,64px);line-height:1.14;letter-spacing:-.02em;font-weight:600;text-align:center}
.words span{opacity:.16;transition:opacity .35s,color .35s}
.words span.on{opacity:1}
.words span.hl.on{color:var(--gold)}
.words span.hl2.on{color:#ff9aa9}

/* 3. Galerie (horizontal) – "Meine Bücher"
   Die Karten liegen in einem Raster mit 4 gemeinsamen Zeilen (Cover, Titel,
   Untertitel, Button). Dadurch sitzen Titel, Untertitel und Buttons bei
   ALLEN Büchern immer auf exakt derselben Höhe mit gleichem Abstand. */
.gal .sticky{flex-direction:column;align-items:flex-start;justify-content:center;gap:26px}
.gal-head{padding:0 8vw}
.gal-head h2{font-size:clamp(34px,5vw,62px);letter-spacing:-.02em}
.gal-head p{color:var(--mut-l);font-size:18px;margin-top:4px}
.track{display:grid;grid-auto-flow:column;grid-template-rows:auto auto auto auto;grid-auto-columns:min(clamp(190px,calc((100vh - 400px)*.75),290px),70vw);column-gap:44px;width:max-content;padding:0 8vw;will-change:transform}
.card{display:grid;grid-row:span 4;grid-template-rows:subgrid;row-gap:0;min-width:0}
.cw{aspect-ratio:3/4;border-radius:6px 12px 12px 6px;box-shadow:0 26px 50px -14px rgba(36,28,46,.45),0 8px 16px rgba(36,28,46,.15),inset 6px 0 8px -4px rgba(0,0,0,.25);overflow:hidden;transition:transform .35s ease,box-shadow .35s;will-change:transform;background:#fff}
.cw>svg{display:block;width:100%;height:100%}
.card h3{font-size:22px;line-height:1.2;margin:20px 0 6px}
.card p{font-size:15px;line-height:1.45;color:var(--mut-l);margin:0 0 16px}
.card .btn{align-self:start;justify-self:start}

/* 4. 3D-Buch */
.b3d{height:420vh}
.b3d .sticky{gap:10vw}
.stage{perspective:1700px;width:250px;height:334px;position:relative;flex:none;transform:scale(1.15)}
.book{position:absolute;inset:0;transform-style:preserve-3d;will-change:transform}
.face{position:absolute;left:50%;top:50%;backface-visibility:hidden;overflow:hidden}
.f-front{width:250px;height:334px;transform:translate(-50%,-50%) translateZ(20px);border-radius:3px 8px 8px 3px}
.f-front>svg{display:block;width:100%;height:100%}
.f-back{width:250px;height:334px;transform:translate(-50%,-50%) rotateY(180deg) translateZ(20px);background:linear-gradient(135deg,#0f5f5a,#1e9483);color:#fff;padding:34px 26px;display:flex;flex-direction:column;justify-content:space-between;border-radius:8px 3px 3px 8px}
.f-back h4{font-family:var(--serif);font-size:20px;font-weight:600;margin-bottom:10px}
.f-back p{font-size:12.5px;line-height:1.6;color:#d6f0ea}
.barcode{align-self:flex-end;background:#fff;width:96px;height:56px;border-radius:2px;background-image:repeating-linear-gradient(90deg,#111 0 2px,#fff 2px 4px,#111 4px 5px,#fff 5px 8px);}
.f-spine{width:40px;height:334px;transform:translate(-50%,-50%) rotateY(-90deg) translateZ(125px);background:linear-gradient(90deg,#0d504b,#1a8676);display:flex;align-items:center;justify-content:center}
.f-spine span{writing-mode:vertical-rl;font-family:var(--serif);color:#fff7e6;font-size:15px;letter-spacing:.18em;white-space:nowrap}
.f-pages{width:40px;height:334px;transform:translate(-50%,-50%) rotateY(90deg) translateZ(125px);background:repeating-linear-gradient(90deg,#fffdf7 0 2px,#e8dfcf 2px 3px)}
.f-top{width:250px;height:40px;transform:translate(-50%,-50%) rotateX(90deg) translateZ(167px);background:repeating-linear-gradient(0deg,#fffdf7 0 2px,#e8dfcf 2px 3px)}
.f-bot{width:250px;height:40px;transform:translate(-50%,-50%) rotateX(-90deg) translateZ(167px);background:#d9cfbe}
.stage .shadow{position:absolute;left:50%;bottom:-64px;width:300px;height:36px;transform:translateX(-50%);background:radial-gradient(ellipse at center,rgba(60,30,40,.35),transparent 70%);filter:blur(4px)}
.steps{position:relative;width:min(88vw,430px);height:230px;flex:none}
.step{position:absolute;inset:0;opacity:0;transform:translateY(28px);transition:opacity .6s,transform .6s}
.step.on{opacity:1;transform:none}
.step small{font-size:13px;letter-spacing:.24em;color:var(--coral);font-weight:700}
.step h3{font-size:clamp(28px,3.8vw,46px);line-height:1.1;margin:8px 0 12px;letter-spacing:-.02em}
.step p{font-size:clamp(16px,1.6vw,20px);color:var(--mut-l)}
.dots{position:absolute;bottom:6vh;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.dots i{width:8px;height:8px;border-radius:8px;background:rgba(36,28,46,.2);transition:all .3s}
.dots i.on{width:28px;background:var(--ink)}

/* 5. Video */
.vid{height:250vh}
.vid .sticky{padding-top:64px;flex-direction:column;background:radial-gradient(ellipse at 50% 100%,#2a1f3d,var(--dark) 70%);gap:22px}
.vid h2{font-size:clamp(30px,4.6vw,56px);text-align:center;letter-spacing:-.02em;will-change:opacity}
.vid .vsub{color:var(--mut-d);text-align:center;margin-top:-14px}
.vframe{position:relative;width:min(90vw,1000px);aspect-ratio:16/9;overflow:hidden;background:#000;box-shadow:0 40px 120px rgba(139,108,240,.35);will-change:transform,border-radius}
.vframe video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}

/* 7. Laufband */
.marq{background:var(--dark);padding:12vh 0;overflow:hidden}
.mrow{white-space:nowrap;will-change:transform;font-family:var(--serif);font-weight:600;font-size:clamp(54px,10vw,150px);line-height:1.15;letter-spacing:-.02em}
.mrow span{margin:0 .3em}
.mrow i{font-style:normal;color:var(--gold);font-size:.5em;vertical-align:middle}
.mrow.o{color:transparent;-webkit-text-stroke:1.5px rgba(255,255,255,.55)}
.mrow.f{color:#fff}

/* 8. CTA */
.cta{position:relative;overflow:hidden;text-align:center;padding:18vh 6vw;background:linear-gradient(135deg,#2a1747,#5b2a6b 45%,#b14a72 100%)}
.cta .blob{opacity:.35}
.cta h2{position:relative;font-size:clamp(36px,6.6vw,86px);line-height:1.04;letter-spacing:-.03em;margin-bottom:18px}
.cta p{position:relative;color:#e6d9f0;font-size:20px;margin-bottom:38px}
.cta .btn{position:relative;background:#fff;color:var(--ink);box-shadow:0 14px 40px rgba(0,0,0,.35)}
.cta .btn:hover{background:var(--gold)}
.cta .btn.is-soon{background:rgba(255,255,255,.12);color:#fff;border:1.5px dashed rgba(255,255,255,.55);box-shadow:none}
.cta .btn.is-soon:hover{background:rgba(255,255,255,.12);color:#fff}

@media(max-width:820px){
  .b3d .sticky{flex-direction:column;gap:64px;padding-top:6vh}
  .stage{transform:scale(.8);margin-top:-20px}
  .steps{height:190px;text-align:center}
  .dots{bottom:3vh}
  .gal .sticky{gap:18px}
  .track{column-gap:28px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* Reduzierte Bewegung: alles statisch untereinander */
.rm .hero,.rm .words,.rm .gal,.rm .b3d,.rm .vid{height:auto}
.rm .sticky{position:relative;height:auto;min-height:0;padding:12vh 6vw}
.rm .hero .sticky{min-height:100vh}
.rm .hero-end{position:relative;bottom:auto;opacity:1;margin-top:30px}
.rm .hint{display:none}
.rm .mand{position:relative;left:auto;top:auto;margin:20px auto 0}
.rm .track{width:auto;overflow-x:auto;padding-bottom:20px}
.rm .steps{height:auto}
.rm .step{position:relative;opacity:1;transform:none;margin-bottom:22px}
.rm .dots{display:none}
.rm .b3d .sticky{flex-direction:column}
.rm .reveal{opacity:1;transform:none;filter:none;transition:none}
.rm .words span{opacity:1}