/* ════════════════════════════════════════════════════════════════════
   Bibliothek der Sinne — Design-Prototyp „Abtauchen“
   Konzept: U-Boot schwimmt auf der Wasseroberfläche (Bücherinsel am
   Horizont) und taucht beim Scrollen ab; jede Sektion liegt eine
   Tiefenstufe weiter unten, das Wasser wird dunkler, am Grund wartet
   die Schatzkiste. Cookiefrei, keine externen Fonts.
   ════════════════════════════════════════════════════════════════════ */

:root{
  --sky1:#bfe5f6; --sky2:#8fd0ee;
  --surface:#6ec1e4;                 /* Markenblau */
  --shallow1:#54b2dc; --shallow2:#2e7fb4;
  --mid1:#1f618f;     --mid2:#143f66;
  --deep1:#0d2c4c;    --deep2:#071c33;
  --sand:#f4dfa8; --yellow:#f7c948; --navy:#1d3f5e;
  --ink:#173a52;                     /* Text auf hellem Grund */
  --foam:#eaf6ff;                    /* Text auf dunklem Grund */
  --accent:#ffd166;
  --card:#ffffff;
  --radius:18px;
  font-size:17px;
}
*{box-sizing:border-box}
html{scroll-behavior:auto}           /* programmatic scroll bleibt präzise */
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  color:var(--foam);
  line-height:1.6;
  overflow-x:hidden;
  background:var(--deep2);
}
img{max-width:100%}
a{color:inherit}

/* ── Hintergrund-Tiefenebenen (Opacity via JS) ─────────────────────── */
.bg{position:fixed;inset:0;z-index:-2;pointer-events:none}
#bgSky    {background:linear-gradient(180deg,var(--sky1) 0%,var(--sky2) 58%,var(--surface) 100%)}
#bgShallow{background:linear-gradient(180deg,var(--shallow1),var(--shallow2));opacity:0}
#bgMid    {background:linear-gradient(180deg,var(--mid1),var(--mid2));opacity:0}
#bgDeep   {background:linear-gradient(180deg,var(--deep1),var(--deep2));opacity:0}

/* ── Aufsteigende Blasen ───────────────────────────────────────────── */
#ambient{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:0}
#ambient span{
  position:absolute;bottom:-40px;width:14px;height:14px;border-radius:50%;
  background:rgba(255,255,255,.16);
  border:1.5px solid rgba(255,255,255,.30);
  animation:rise linear infinite;
}
#ambient span:nth-child(1){left:6%;  animation-duration:11s}
#ambient span:nth-child(2){left:16%; width:8px;height:8px;   animation-duration:14s;animation-delay:-4s}
#ambient span:nth-child(3){left:27%; width:20px;height:20px; animation-duration:17s;animation-delay:-9s}
#ambient span:nth-child(4){left:38%; width:10px;height:10px; animation-duration:12s;animation-delay:-2s}
#ambient span:nth-child(5){left:49%; animation-duration:16s;animation-delay:-7s}
#ambient span:nth-child(6){left:58%; width:7px;height:7px;   animation-duration:10s;animation-delay:-5s}
#ambient span:nth-child(7){left:69%; width:18px;height:18px; animation-duration:18s;animation-delay:-12s}
#ambient span:nth-child(8){left:80%; animation-duration:13s;animation-delay:-3s}
#ambient span:nth-child(9){left:88%; width:9px;height:9px;   animation-duration:15s;animation-delay:-8s}
#ambient span:nth-child(10){left:95%;width:12px;height:12px; animation-duration:12s;animation-delay:-6s}
@keyframes rise{
  from{transform:translateY(0)    translateX(0)}
  50% {transform:translateY(-55vh) translateX(14px)}
  to  {transform:translateY(-110vh) translateX(-8px)}
}

/* ── Meeresbewohner (Fischschwärme + Schildkröte) ──────────────────── */
#fauna .swim{position:fixed;left:0;z-index:-1;pointer-events:none;opacity:0;will-change:transform}
#fauna .inner{animation:fbob 5.5s ease-in-out infinite alternate}
.schwarmA{top:22vh;color:#dff3fc;animation:swimL 52s linear infinite;animation-delay:-18s}
.schwarmB{top:55vh;color:#bfe3f2;animation:swimR 68s linear infinite;animation-delay:-30s}

.schwarmC{top:72vh;color:#9fcfe6;animation:swimL 84s linear infinite;animation-delay:-52s}
.turtle{top:38vh;animation:swimR 95s linear infinite;animation-delay:-44s}
.turtle .inner{animation:tpaddle 6s ease-in-out infinite alternate}
@keyframes swimL{from{transform:translateX(108vw)}to{transform:translateX(-32vw)}}
@keyframes swimR{from{transform:translateX(-32vw)}to{transform:translateX(108vw)}}
@keyframes fbob{from{transform:translateY(-9px)}to{transform:translateY(9px)}}
@keyframes tpaddle{from{transform:translateY(-12px) rotate(-3deg)}to{transform:translateY(12px) rotate(4deg)}}
.schwarmA svg,.schwarmC svg{transform:scaleX(-1)}
@media(max-width:860px){#fauna svg{width:60%}}

/* ── Navigation ────────────────────────────────────────────────────── */
#topnav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;gap:1.4rem;
  padding:.65rem clamp(1rem,4vw,2.4rem);
  color:var(--ink);
  transition:background .25s ease,color .25s ease,box-shadow .25s ease;
}
#topnav.scrolled{background:rgba(7,25,46,.92);color:var(--foam);box-shadow:0 2px 18px rgba(0,0,0,.25)}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:800;font-size:1.05rem}
.brand img{border-radius:50%;background:#fff;padding:2px}
.proto{
  font-style:normal;font-weight:700;font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;
  background:var(--accent);color:#5c4400;border-radius:999px;padding:.18rem .55rem;
}
#topnav nav{display:flex;gap:1.15rem;margin-left:auto;flex-wrap:wrap}
#topnav nav a{text-decoration:none;font-weight:600;font-size:.92rem;opacity:.92}
#topnav nav a:hover{text-decoration:underline}
.to-live{font-size:.82rem;opacity:.92;text-decoration:none;white-space:nowrap}
.to-live:hover{opacity:1}
@media(max-width:760px){
  #topnav nav{display:none}
  .to-live{margin-left:auto}
}

/* ── U-Boot (fixer Begleiter) ──────────────────────────────────────── */
#uboot{
  position:fixed;left:0;top:0;z-index:40;
  width:clamp(120px,15vw,200px);aspect-ratio:1;
  pointer-events:none;will-change:transform;
  visibility:hidden;
}
#uboot img{
  width:100%;height:100%;display:block;
  filter:drop-shadow(0 10px 18px rgba(6,24,44,.30));
}
#uboot .trail{
  position:absolute;left:-14%;top:42%;width:26%;
  opacity:var(--trail,0);transition:opacity .4s;
}
#uboot .trail circle{animation:trailrise 2.2s ease-out infinite}
#uboot .trail circle:nth-child(2){animation-delay:.6s}
#uboot .trail circle:nth-child(3){animation-delay:1.2s}
@keyframes trailrise{
  from{transform:translate(0,0);opacity:.6}
  to  {transform:translate(-22px,-30px);opacity:0}
}

/* ── Tiefenanzeige ─────────────────────────────────────────────────── */
#tiefe{
  position:fixed;right:clamp(.7rem,2vw,1.6rem);bottom:1.2rem;z-index:45;
  font-variant-numeric:tabular-nums;font-weight:700;font-size:.85rem;letter-spacing:.06em;
  color:var(--foam);background:rgba(7,25,46,.55);
  border:1.5px solid rgba(255,255,255,.35);border-radius:999px;
  padding:.3rem .85rem;pointer-events:none;
}

/* ── Hero (über Wasser) ────────────────────────────────────────────── */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  overflow:hidden;color:var(--ink);
}
.sun{
  position:absolute;top:8vh;right:47vw;width:110px;height:110px;border-radius:50%;
  background:radial-gradient(circle,#fff3c4 0%,#ffd166 55%,rgba(255,209,102,0) 72%);
  box-shadow:0 0 80px 30px rgba(255,209,102,.45);
}
.cloud{position:absolute;background:#fff;border-radius:999px;opacity:.9;height:26px}
.cloud::before,.cloud::after{content:"";position:absolute;background:#fff;border-radius:50%}
.cloud::before{width:34px;height:34px;top:-16px;left:18px}
.cloud::after{width:24px;height:24px;top:-10px;left:48px}
.c1{top:14vh;left:8vw;width:110px;animation:drift 60s linear infinite}
.c2{top:24vh;left:55vw;width:84px;opacity:.75;animation:drift 80s linear infinite reverse}
@keyframes drift{from{transform:translateX(-6vw)}to{transform:translateX(12vw)}}

.hero-inner{
  position:relative;z-index:2;width:min(1180px,92vw);margin:0 auto;
  display:grid;grid-template-columns:minmax(0,1fr);
  align-items:end;
  padding:16vh 0 0;flex:1;
}
.hero-text{max-width:560px}
.hero-text{padding-bottom:13vh}
.kicker{
  font-size:.82rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;
  color:#19618f;margin:0 0 .6rem;
}
.hero h1{
  font-size:clamp(2.3rem,5.2vw,4rem);line-height:1.06;margin:0 0 1rem;
  font-weight:850;letter-spacing:-.015em;color:var(--navy);
}
.lede{font-size:clamp(1rem,1.4vw,1.15rem);max-width:34rem;margin:0 0 1.6rem;color:#26506f}
.cta-row{display:flex;gap:.8rem;flex-wrap:wrap}
.btn{
  display:inline-block;text-decoration:none;font-weight:700;font-size:.95rem;
  border-radius:999px;padding:.72rem 1.45rem;transition:transform .15s,box-shadow .15s,background .15s;
}
.btn.solid{background:var(--navy);color:#fff;box-shadow:0 6px 18px rgba(29,63,94,.32)}
.btn.solid:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(29,63,94,.4)}
.btn.ghost{border:2px solid currentColor;color:inherit}
.btn.ghost:hover{transform:translateY(-2px)}
.depth .btn.solid{background:var(--accent);color:#4a3800;box-shadow:0 6px 18px rgba(0,0,0,.3)}

.insel{
  position:absolute;right:-10vw;bottom:6.5vh;z-index:1;
  width:clamp(560px,74vw,1180px);
}

.sea{position:relative;height:9vh;min-height:64px;z-index:3}
.wave{position:absolute;bottom:0;left:0;width:200%;height:100%}
.w1{animation:waveslide 9s linear infinite;opacity:.95}
.w2{animation:waveslide 13s linear infinite reverse;bottom:-12%;opacity:.8}
@keyframes waveslide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.scrollhint{
  position:absolute;left:50%;bottom:11vh;transform:translateX(-50%);z-index:4;
  display:flex;align-items:center;gap:.45rem;text-decoration:none;
  font-size:.85rem;font-weight:700;letter-spacing:.04em;color:var(--navy);
  background:rgba(255,255,255,.78);border-radius:999px;padding:.5rem 1.1rem;
  animation:hintbob 2.4s ease-in-out infinite;
}
@keyframes hintbob{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,7px)}}

/* ── Tiefen-Sektionen ──────────────────────────────────────────────── */
.depth{
  position:relative;width:min(1180px,92vw);margin:0 auto;
  padding:clamp(5rem,12vh,8.5rem) 0;
}
.tag{
  display:inline-block;font-size:.72rem;font-weight:800;letter-spacing:.2em;text-transform:uppercase;
  color:var(--foam);background:rgba(255,255,255,.13);
  border:1.5px solid rgba(255,255,255,.3);border-radius:999px;
  padding:.32rem .9rem;margin-bottom:1.1rem;
}
.depth h2{
  font-size:clamp(1.9rem,3.6vw,2.7rem);margin:.1rem 0 .4rem;
  font-weight:850;letter-spacing:-.01em;color:#fff;
  text-shadow:0 2px 18px rgba(0,0,0,.25);
}
.depth .sub{max-width:44rem;margin:0 0 2.2rem;color:rgba(234,246,255,.94);font-size:1.05rem}

.grid{display:grid;gap:1.5rem}
.grid.three{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}
.grid.two{grid-template-columns:repeat(auto-fit,minmax(310px,1fr))}

.card{
  background:var(--card);color:var(--ink);
  border-radius:var(--radius);padding:1.5rem 1.6rem;
  box-shadow:0 14px 40px rgba(3,18,36,.35);
}
.card h3{margin:0 0 .55rem;font-size:1.18rem;color:var(--navy)}
.card p{margin:.3rem 0;font-size:.97rem}
.card.offer .icon{font-size:1.7rem;display:block;margin-bottom:.5rem}
.more-link{margin-top:2rem}

/* Crew-Bullaugen */
.crew{margin-top:3.4rem;text-align:center}
.crew h3{font-size:1.3rem;color:#fff;margin:0 0 1.4rem}
.portholes{display:flex;justify-content:center;gap:clamp(1.4rem,5vw,3.4rem);flex-wrap:wrap}
.portholes figure{margin:0}
.ring{
  display:flex;align-items:center;justify-content:center;
  width:108px;height:108px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#d9f2fc,#9fd8ef 70%);
  border:9px solid var(--yellow);outline:4px solid var(--navy);
  box-shadow:0 12px 30px rgba(3,18,36,.45), inset 0 4px 10px rgba(255,255,255,.7);
}
.ring b{font-size:2.1rem;color:var(--navy)}
.portholes figcaption{margin-top:.7rem;font-weight:700;color:var(--foam)}
.crew-note{color:rgba(234,246,255,.92);font-size:.92rem;margin-top:1.4rem}

/* Spenden / IBAN */
.card.iban{max-width:560px}
.card.iban code{
  display:inline-block;background:#eef6fb;border-radius:8px;
  padding:.2rem .6rem;margin:.15rem 0;font-size:.95rem;color:var(--navy);
}
.card.iban .bank{line-height:1.9}
.card.iban .cta-row{margin-top:1.2rem}
.card.iban .btn.solid{background:var(--navy);color:#fff}
.card.iban .btn.ghost{color:var(--navy)}

/* Blog-Widget-Sektion — dunkleres Funktionsblau für Textkontrast (WCAG AA):
   #6ec1e4 bleibt Deko-Farbe der Seite, ist aber als Textfarbe zu hell. */
.depth.wide wirtino-blog{
  display:block;
  --wirtino-primary:#16729f;
  --wirtino-secondary:#16729f;
  --wirtino-bg-highlight:#ecf6fc;
}
#neues{content-visibility:auto;contain-intrinsic-size:auto 1800px}
/* Beitrag öffnen: Widget scrollt zum stabilen Anker an der Überschrift
   (scroll-anchor-Attribut) — unabhängig von der Widget-Höhe. */
#neues-titel{scroll-margin-top:96px}
#grund{content-visibility:auto;contain-intrinsic-size:auto 700px}

/* ── Meeresgrund + Footer ──────────────────────────────────────────── */
.seabed{position:relative;margin-top:4rem}
.grund-deko{display:block;width:100%;height:clamp(170px,20vw,480px)}
footer{
  background:#caa968;color:#4a3a1d;
  padding:2.4rem clamp(1rem,4vw,2.4rem) 1.6rem;
}
.foot-grid{
  width:min(1180px,92vw);margin:0 auto;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.6rem;
}
footer h3{margin:0 0 .5rem;font-size:1rem;color:#33260f}
footer p{margin:0;font-size:.93rem}
footer a{color:#33260f;font-weight:600}
.fish{text-align:center;margin:2.2rem 0 .4rem !important;font-weight:700}
.copy{text-align:center;font-size:.8rem !important;color:#3d2f13}

/* ── Algen: sanftes Wiegen in der Strömung (je Halm eigene Phase) ──── */
.alge{
  transform-box:fill-box;transform-origin:50% 100%;
  animation:stroemung var(--dur,5.5s) ease-in-out infinite alternate;
  animation-delay:calc(var(--t,0s) + var(--b,0s));
}
@keyframes stroemung{
  from{transform:rotate(-3.5deg)}
  to  {transform:rotate(4deg)}
}

/* ── Funkeln an der Schatzkiste: sanftes Pulsieren ─────────────────── */
.funkel path{
  transform-box:fill-box;transform-origin:center;
  animation:funkeln 2.8s ease-in-out infinite;
}
.funkel path:nth-child(2){animation-delay:-1s}
.funkel path:nth-child(3){animation-delay:-1.9s}
@keyframes funkeln{
  0%,100%{transform:scale(.5) rotate(-8deg);opacity:.35}
  50%    {transform:scale(1.2) rotate(8deg);opacity:1}
}

/* ── Unsichtbare Deko: Animationen pausieren (CPU/Akku, Mobile-Perf) ── */
#ambient.aus span{animation-play-state:paused}
#fauna .swim.aus{visibility:hidden}
#fauna .swim.aus,#fauna .swim.aus .inner{animation-play-state:paused}

/* ── Reduced Motion ────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce){
  .c1,.c2,.w1,.w2,.scrollhint,#uboot .trail circle,#ambient span,.funkel path,.alge{animation:none !important}
  #ambient{display:none}
  #fauna{display:none}
}

/* ── Mobil ─────────────────────────────────────────────────────────── */
@media(max-width:860px){
  .hero-inner{grid-template-columns:minmax(0,1fr);padding-top:13vh}
  .hero-inner>*{min-width:0}
  .hero-text{padding-bottom:2vh}
  .lede{max-width:100%}
  .insel{width:118vw;right:-32vw;bottom:-19vh}
  .scrollhint{display:none}
  #uboot{width:clamp(120px,30vw,170px)}
}
@media(max-width:560px){
  .brand span{white-space:nowrap;font-size:.95rem}
  .to-live{display:none}
}

/* ════════════════════════════════════════════════════════════════════
   Subseiten „aufgetaucht" (Impressum / Datenschutz)
   Ruhiges Lese-Dokument an der Oberfläche — gleiche Identität wie der
   Prototyp (Palette, Header, Seegrund-Footer), aber ohne Abtauch-Engine.
   ════════════════════════════════════════════════════════════════════ */
body.doc{
  background:linear-gradient(180deg,var(--sky1) 0%,var(--sky2) 55%,var(--surface) 100%);
  background-attachment:fixed;
  color:var(--ink);min-height:100vh;
  display:flex;flex-direction:column;overflow-x:hidden;
}
/* Header auf Subseiten dauerhaft solide (kein Scroll-Abdunkeln) */
body.doc #topnav{position:sticky}
body.doc #topnav .brand,
body.doc #topnav nav a,
body.doc #topnav .to-live{color:var(--foam)}

.doc-main{flex:1 0 auto;width:min(820px,92vw);margin:0 auto;padding:clamp(1.6rem,5vh,3.4rem) 0 4rem}
.doc-back{
  display:inline-flex;align-items:center;gap:.4rem;margin-bottom:1.2rem;
  text-decoration:none;color:var(--navy);font-weight:700;font-size:.9rem;
  background:rgba(255,255,255,.7);border-radius:999px;padding:.4rem .95rem;
}
.doc-back:hover{background:#fff}
.doc-card{
  background:var(--card);color:var(--ink);
  border-radius:var(--radius);padding:clamp(1.5rem,4vw,3rem);
  box-shadow:0 18px 50px rgba(3,18,36,.20);
}
.doc-eyebrow{
  font-size:.78rem;font-weight:800;letter-spacing:.16em;text-transform:uppercase;
  color:#19618f;margin:0 0 .5rem;
}
.doc-card h1{
  font-size:clamp(1.9rem,4.4vw,2.7rem);line-height:1.1;letter-spacing:-.015em;
  color:var(--navy);margin:0 0 1.3rem;
}
.doc-card h2{font-size:1.32rem;color:var(--navy);margin:2.1rem 0 .5rem}
.doc-card h3{font-size:1.06rem;color:#1f618f;margin:1.5rem 0 .35rem}
.doc-card p{margin:.45rem 0 1rem;font-size:.99rem;color:#22455f}
.doc-card a{color:#16729f;font-weight:600}
.doc-card hr{border:none;border-top:1px solid #d9e7f0;margin:2.4rem 0 1.6rem}
.doc-note{
  background:#eef6fb;border:1px solid #cfe4f1;border-radius:12px;
  padding:.9rem 1.1rem;margin:.4rem 0 1.4rem;font-size:.92rem;color:#1f4a66;
}
@media(max-width:760px){
  body.doc #topnav nav{display:none}
}