/* ============================================================
   Peter Dietter – Thriller Landingpage
   Farbwelten: Leviathan (Cyan/Blau) · 30 Tage Stille (Orange/Ember)
   ============================================================ */

:root{
  --bg:#06090E;
  --bg-2:#0A0F16;
  --panel:#0C121B;
  --line:#1A2430;
  --line-soft:#131B24;
  --text:#EAF1F8;
  --muted:#8091A1;
  --muted-dim:#4C5A69;

  /* Leviathan */
  --lev:#2FD8FF;
  --lev-2:#2A7CFF;
  --lev-dim:#0E3A4A;
  --lev-glow:rgba(47,216,255,.5);

  /* 30 Tage Stille */
  --bio:#FF8321;
  --bio-2:#E8341A;
  --bio-dim:#4A2810;
  --bio-glow:rgba(255,131,33,.5);

  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:66px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h)}
body{
  background:var(--bg);color:var(--text);
  font-family:"IBM Plex Sans",system-ui,sans-serif;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
::selection{background:var(--lev);color:#04121a}

.mono{font-family:"IBM Plex Mono",monospace}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,4vw,40px)}
.eyebrow{font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--muted)}

/* film-grain / scanline overlay */
.overlay-scan{position:fixed;inset:0;pointer-events:none;z-index:60;opacity:.4;
  background:repeating-linear-gradient(to bottom,rgba(255,255,255,.015) 0 1px,transparent 1px 3px);
  mix-blend-mode:overlay}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:50;
  display:flex;align-items:center;
  background:rgba(6,9,14,.55);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .4s,background .4s}
.nav.scrolled{background:rgba(6,9,14,.86);border-bottom-color:var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;width:100%}
.nav .logo{font-family:"Chakra Petch",sans-serif;font-weight:700;letter-spacing:.14em;
  font-size:1rem;display:flex;align-items:center;gap:10px}
.nav .logo .pulse{width:8px;height:8px;border-radius:50%;background:var(--accent,var(--lev));
  box-shadow:0 0 12px var(--accent,var(--lev));animation:pulse 2.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.15)}}
.nav-links{display:flex;gap:26px;align-items:center;font-family:"IBM Plex Mono",monospace;
  font-size:.76rem;letter-spacing:.08em;text-transform:uppercase}
.nav-links a{color:var(--muted);transition:color .25s;position:relative;padding:4px 0}
.nav-links a:hover,.nav-links a.active{color:var(--text)}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--accent,var(--lev));box-shadow:0 0 10px var(--accent,var(--lev))}
.nav-burger{display:none;background:none;border:0;color:var(--text);cursor:pointer;font-size:1.4rem}

/* ============ BUTTONS ============ */
.btn{display:inline-flex;align-items:center;gap:10px;cursor:pointer;
  font-family:"Chakra Petch",sans-serif;font-weight:600;font-size:.95rem;letter-spacing:.02em;
  padding:15px 26px;border-radius:3px;border:1px solid var(--line);background:var(--bg-2);
  color:var(--text);transition:transform .28s var(--ease),box-shadow .28s,border-color .28s,background .28s}
.btn svg{width:18px;height:18px;flex:none}
.btn:hover{transform:translateY(-3px)}
.btn--accent{border-color:color-mix(in srgb,var(--accent) 45%,transparent);color:var(--accent);
  background:color-mix(in srgb,var(--accent) 8%,var(--bg-2))}
.btn--accent:hover{border-color:var(--accent);
  box-shadow:0 14px 40px -14px var(--accent-glow),0 0 0 1px color-mix(in srgb,var(--accent) 30%,transparent)}
.btn--solid{background:var(--accent);color:#05121a;border-color:var(--accent);font-weight:700}
.btn--solid:hover{box-shadow:0 14px 44px -12px var(--accent-glow)}
.btn--ghost{color:var(--muted);background:transparent}
.btn--ghost:hover{color:var(--text);border-color:var(--muted)}

/* ============ HERO (split) ============ */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;
  padding-top:var(--nav-h);overflow:hidden}
#net{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.hero-grad{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:
   radial-gradient(70vw 80vh at 8% 40%,rgba(47,124,255,.16),transparent 60%),
   radial-gradient(70vw 80vh at 92% 60%,rgba(232,52,26,.15),transparent 60%),
   linear-gradient(180deg,rgba(6,9,14,.2),rgba(6,9,14,.65) 70%,var(--bg))}
.hero-inner{position:relative;z-index:2;width:100%;
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:clamp(10px,3vw,40px);max-width:1280px;margin:0 auto;padding:0 clamp(20px,4vw,40px)}

.hero-cover{width:clamp(150px,20vw,290px);aspect-ratio:714/1024;border-radius:4px;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);position:relative;
  transition:transform .6s var(--ease),box-shadow .6s;will-change:transform}
.hero-cover img{width:100%;height:100%;object-fit:cover}
.hero-cover .label{position:absolute;left:0;right:0;bottom:0;padding:26px 12px 12px;
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;
  text-align:center;color:#fff;background:linear-gradient(transparent,rgba(0,0,0,.85))}
.hero-cover.lev{transform:rotate(-4deg) translateY(6px);box-shadow:0 30px 70px -28px var(--lev-glow)}
.hero-cover.lev:hover{transform:rotate(0) translateY(0) scale(1.03);box-shadow:0 36px 80px -24px var(--lev-glow)}
.hero-cover.bio{transform:rotate(4deg) translateY(6px);box-shadow:0 30px 70px -28px var(--bio-glow);justify-self:end}
.hero-cover.bio:hover{transform:rotate(0) translateY(0) scale(1.03);box-shadow:0 36px 80px -24px var(--bio-glow)}

.hero-center{text-align:center;min-width:min(90vw,520px)}
.hero-center .eyebrow{margin-bottom:20px}
.hero-center h1{font-family:"Chakra Petch",sans-serif;font-weight:700;
  font-size:clamp(2.6rem,7vw,5.2rem);line-height:.98;letter-spacing:.02em;
  background:linear-gradient(100deg,var(--lev),#fff 45%,#fff 55%,var(--bio));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.hero-tagline{height:1.6em;margin:20px 0 30px;font-size:clamp(1rem,2vw,1.3rem);color:var(--text)}
.hero-tagline .cursor{display:inline-block;width:2px;height:1.05em;vertical-align:-.16em;
  background:var(--lev);margin-left:2px;animation:cursor 1s steps(1) infinite}
@keyframes cursor{50%{opacity:0}}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;
  font-family:"IBM Plex Mono",monospace;font-size:.66rem;letter-spacing:.2em;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;gap:8px}
.scroll-cue .arrow{width:1px;height:34px;background:linear-gradient(var(--muted),transparent);
  position:relative;overflow:hidden}
.scroll-cue .arrow::after{content:"";position:absolute;top:-34px;left:0;width:1px;height:34px;
  background:linear-gradient(var(--text),transparent);animation:scrolldot 2s var(--ease) infinite}
@keyframes scrolldot{to{top:34px}}

/* ============ BOOK ZONES ============ */
.zone{position:relative;padding:clamp(80px,13vh,150px) 0;overflow:hidden}
.zone--lev{--accent:var(--lev);--accent-2:var(--lev-2);--accent-glow:var(--lev-glow);
  background:radial-gradient(90vw 60vh at 80% 10%,rgba(47,124,255,.10),transparent 60%),var(--bg)}
.zone--bio{--accent:var(--bio);--accent-2:var(--bio-2);--accent-glow:var(--bio-glow);
  background:radial-gradient(90vw 60vh at 20% 10%,rgba(232,52,26,.10),transparent 60%),#080604}
.zone-index{position:absolute;font-family:"Chakra Petch",sans-serif;font-weight:700;
  font-size:clamp(9rem,26vw,24rem);line-height:.8;color:color-mix(in srgb,var(--accent) 6%,transparent);
  top:-.1em;z-index:0;user-select:none;pointer-events:none}
.zone--lev .zone-index{right:2%}
.zone--bio .zone-index{left:2%}

.book{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,360px) 1fr;
  gap:clamp(30px,6vw,80px);align-items:center}
.zone--bio .book{grid-template-columns:1fr minmax(0,360px)}
.zone--bio .book .book-visual{order:2}

.book-visual{perspective:1600px}
.cover-tilt{position:relative;border-radius:6px;overflow:hidden;transform-style:preserve-3d;
  transition:transform .5s var(--ease),box-shadow .5s;will-change:transform;
  box-shadow:0 40px 90px -40px #000,0 0 70px -30px var(--accent-glow)}
.cover-tilt img{width:100%;border-radius:6px}
.cover-tilt .sheen{position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(105deg,transparent 30%,rgba(255,255,255,.16) 48%,transparent 62%);
  opacity:0;transition:opacity .4s}
.cover-tilt:hover .sheen{opacity:1}
.cover-badge{position:absolute;top:14px;left:14px;z-index:3;font-family:"IBM Plex Mono",monospace;
  font-size:.62rem;letter-spacing:.16em;text-transform:uppercase;padding:6px 10px;border-radius:2px;
  background:rgba(0,0,0,.6);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);color:var(--accent)}

.book-body .kicker{font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.2em;
  text-transform:uppercase;color:var(--accent);margin-bottom:16px;display:flex;gap:12px;align-items:center}
.book-body .kicker .rule{height:1px;width:44px;background:var(--accent);opacity:.6}
.book-body h2{font-family:"Chakra Petch",sans-serif;font-weight:700;letter-spacing:.01em;
  font-size:clamp(2.4rem,5.5vw,4.4rem);line-height:.96;margin-bottom:14px}
.book-body .tag{font-size:clamp(1.05rem,2vw,1.35rem);font-style:italic;color:var(--text);
  margin-bottom:26px;padding-left:16px;border-left:2px solid var(--accent)}
.book-body p.blurb{color:#c2ccd6;margin-bottom:18px;max-width:60ch}
.book-body p.blurb strong{color:var(--text);font-weight:600}

.readout{border:1px solid var(--line);border-radius:4px;background:rgba(0,0,0,.35);
  font-family:"IBM Plex Mono",monospace;font-size:.72rem;letter-spacing:.06em;
  margin:26px 0;overflow:hidden}
.readout .rhead{display:flex;align-items:center;gap:8px;padding:9px 14px;color:var(--accent);
  border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--accent) 7%,transparent)}
.readout .rhead .d{width:7px;height:7px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 8px var(--accent)}
.readout .rbody{padding:12px 14px;display:grid;grid-template-columns:repeat(2,1fr);gap:8px 22px;color:var(--muted)}
.readout .rbody b{color:var(--text);font-weight:500}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.chip{font-family:"IBM Plex Mono",monospace;font-size:.68rem;letter-spacing:.08em;padding:6px 12px;
  border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));border-radius:2px;color:var(--muted)}
.book-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* ============ AUTHOR ============ */
.author{position:relative;padding:clamp(70px,10vh,120px) 0;background:var(--bg-2);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.author .wrap{max-width:760px;text-align:center}
.author .eyebrow{margin-bottom:20px}
.author h2{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:clamp(2rem,4vw,3rem);
  margin-bottom:22px;background:linear-gradient(100deg,var(--lev),var(--bio));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.author p{color:var(--muted);margin-bottom:16px;font-size:1.05rem}
.author p strong{color:var(--text);font-weight:600}
.author-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:14px}
.author-cta .btn--accent{--accent:var(--lev);--accent-glow:var(--lev-glow)}
.author-cta .btn--accent.b{--accent:var(--bio);--accent-glow:var(--bio-glow)}

/* ============ FOOTER ============ */
footer{padding:44px 0 60px}
footer .frow{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;align-items:center;
  font-family:"IBM Plex Mono",monospace;font-size:.74rem;letter-spacing:.06em;color:var(--muted)}
footer a:hover{color:var(--text)}
footer .flinks{display:flex;gap:18px}

/* ============ CHATBOT ============ */
.chat-fab{position:fixed;right:24px;bottom:24px;z-index:80;width:60px;height:60px;border-radius:50%;
  border:0;cursor:pointer;background:linear-gradient(135deg,var(--lev-2),var(--bio-2));
  color:#fff;display:flex;align-items:center;justify-content:center;
  box-shadow:0 14px 40px -10px rgba(0,0,0,.7),0 0 0 0 rgba(47,216,255,.5);
  transition:transform .3s var(--ease),box-shadow .3s;animation:fabpulse 3s ease-in-out infinite}
.chat-fab:hover{transform:scale(1.08)}
.chat-fab svg{width:26px;height:26px}
@keyframes fabpulse{0%{box-shadow:0 14px 40px -10px rgba(0,0,0,.7),0 0 0 0 rgba(47,216,255,.45)}
  70%{box-shadow:0 14px 40px -10px rgba(0,0,0,.7),0 0 0 16px rgba(47,216,255,0)}
  100%{box-shadow:0 14px 40px -10px rgba(0,0,0,.7),0 0 0 0 rgba(47,216,255,0)}}
.chat-fab .badge{position:absolute;top:-4px;right:-4px;background:var(--bio);color:#1a0d02;
  font-family:"IBM Plex Mono",monospace;font-size:.6rem;font-weight:600;padding:2px 6px;border-radius:10px}

.chat-panel{position:fixed;right:24px;bottom:96px;z-index:81;width:min(380px,calc(100vw - 32px));
  height:min(560px,calc(100vh - 140px));background:var(--panel);border:1px solid var(--line);
  border-radius:14px;display:flex;flex-direction:column;overflow:hidden;
  box-shadow:0 30px 80px -20px rgba(0,0,0,.8);
  opacity:0;transform:translateY(20px) scale(.96);pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease)}
.chat-panel.open{opacity:1;transform:none;pointer-events:auto}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);
  background:linear-gradient(100deg,rgba(47,124,255,.12),rgba(232,52,26,.12))}
.chat-head .avatar{width:36px;height:36px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,var(--lev-2),var(--bio-2));display:flex;align-items:center;justify-content:center}
.chat-head .avatar svg{width:20px;height:20px;color:#fff}
.chat-head .meta{flex:1}
.chat-head .meta b{font-family:"Chakra Petch",sans-serif;font-size:.95rem;letter-spacing:.03em}
.chat-head .meta span{display:block;font-family:"IBM Plex Mono",monospace;font-size:.64rem;
  letter-spacing:.08em;color:var(--muted)}
.chat-head .meta span .on{color:#38d39f}
.chat-close{background:none;border:0;color:var(--muted);cursor:pointer;font-size:1.4rem;line-height:1}
.chat-close:hover{color:var(--text)}

.chat-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;
  scrollbar-width:thin;scrollbar-color:var(--line) transparent}
.chat-log::-webkit-scrollbar{width:6px}
.chat-log::-webkit-scrollbar-thumb{background:var(--line);border-radius:3px}
.msg{max-width:86%;padding:11px 14px;border-radius:14px;font-size:.9rem;line-height:1.55;
  animation:msgin .35s var(--ease) both}
@keyframes msgin{from{opacity:0;transform:translateY(8px)}}
.msg.bot{align-self:flex-start;background:var(--bg-2);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.user{align-self:flex-end;background:linear-gradient(135deg,var(--lev-2),#1a5fd0);color:#fff;border-bottom-right-radius:4px}
.msg strong{font-weight:600}
.msg .buybtn{display:inline-flex;align-items:center;gap:8px;margin-top:10px;
  font-family:"Chakra Petch",sans-serif;font-weight:600;font-size:.82rem;padding:9px 14px;border-radius:3px;
  color:#05121a;text-decoration:none}
.msg .buybtn svg{width:15px;height:15px}
.msg .buybtn.lev{background:var(--lev)}
.msg .buybtn.bio{background:var(--bio)}
.msg .buybtn:hover{filter:brightness(1.1)}
.msg .buyrow{display:flex;flex-wrap:wrap;gap:8px}

.typing{align-self:flex-start;display:flex;gap:4px;padding:12px 14px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:14px;border-bottom-left-radius:4px}
.typing span{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:typing 1.2s infinite}
.typing span:nth-child(2){animation-delay:.15s}.typing span:nth-child(3){animation-delay:.3s}
@keyframes typing{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-4px)}}

.chat-quick{display:flex;gap:8px;overflow-x:auto;padding:10px 16px;border-top:1px solid var(--line);
  scrollbar-width:none}
.chat-quick::-webkit-scrollbar{display:none}
.quick{flex:none;font-family:"IBM Plex Mono",monospace;font-size:.7rem;letter-spacing:.04em;
  padding:7px 12px;border:1px solid var(--line);border-radius:20px;background:var(--bg-2);
  color:var(--muted);cursor:pointer;white-space:nowrap;transition:.2s}
.quick:hover{color:var(--text);border-color:var(--lev)}
.chat-input{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line)}
.chat-input input{flex:1;background:var(--bg);border:1px solid var(--line);border-radius:22px;
  padding:11px 16px;color:var(--text);font-family:inherit;font-size:.9rem;outline:none;transition:border-color .2s}
.chat-input input:focus{border-color:var(--lev)}
.chat-input button{flex:none;width:42px;height:42px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(135deg,var(--lev-2),var(--bio-2));color:#fff;display:flex;align-items:center;justify-content:center}
.chat-input button svg{width:18px;height:18px}
.chat-input button:hover{filter:brightness(1.12)}

/* ============ REVEAL ============ */
/* Inhalt ist standardmäßig sichtbar. Nur wenn JS läuft (.js) wird
   vor dem Einblenden versteckt – so bleibt ohne JS nie etwas schwarz. */
.reveal{transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .reveal{opacity:0;transform:translateY(28px)}
.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* ============ RESPONSIVE ============ */
@media(max-width:900px){
  .nav-links{position:fixed;inset:var(--nav-h) 0 auto 0;flex-direction:column;gap:0;
    background:rgba(6,9,14,.97);border-bottom:1px solid var(--line);padding:8px 0;
    transform:translateY(-120%);transition:transform .35s var(--ease)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 26px;width:100%}
  .nav-burger{display:block}
  .hero-inner{grid-template-columns:1fr;gap:34px;text-align:center}
  .hero-cover{display:none}
  .book,.zone--bio .book{grid-template-columns:1fr;gap:36px}
  .zone--bio .book .book-visual{order:0}
  .book-visual{max-width:300px;margin:0 auto}
  .cover-tilt{transform:none!important}
}
@media(max-width:520px){
  .readout .rbody{grid-template-columns:1fr}
  .chat-fab{right:16px;bottom:16px}
  .chat-panel{right:8px;left:8px;width:auto;bottom:88px}
}

/* reduced motion */
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal,.js .reveal{opacity:1!important;transform:none!important}
  #net{display:none}
}
:focus-visible{outline:2px solid var(--lev);outline-offset:3px}