/* Brückenschlag über die Ostsee — Buchempfehlung
   ------------------------------------------------ */

:root{
  --navy:#0d2438;
  --navy-2:#123551;
  --sea:#1f6f8b;
  --sea-light:#3f97b4;
  --sand:#f6f1e7;
  --paper:#fffdf8;
  --ink:#17242f;
  --ink-soft:#4a5b68;
  --line:#e2dccf;
  --amber:#c8892f;
  --amber-dark:#a26f21;
  --radius:14px;
  --wrap:1140px;
  --shadow-sm:0 1px 2px rgba(13,36,56,.06), 0 4px 14px rgba(13,36,56,.06);
  --shadow-md:0 10px 30px rgba(13,36,56,.12);
  --shadow-lg:0 26px 60px rgba(13,36,56,.28);
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.65;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img{max-width:100%;height:auto;display:block}

a{color:var(--sea);text-decoration:underline;text-underline-offset:2px}
a:hover{color:var(--navy)}

h1,h2,h3,h4{font-family:var(--serif);line-height:1.2;margin:0 0 .5em;color:var(--navy);font-weight:600}
h1{font-size:clamp(2rem,1.3rem + 2.8vw,3.2rem);letter-spacing:-.01em}
h2{font-size:clamp(1.5rem,1.15rem + 1.5vw,2.15rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.05em}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 22px}
.narrow{max-width:800px}

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--navy);color:#fff;
  padding:10px 16px;z-index:100;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0}

:focus-visible{outline:3px solid var(--sea-light);outline-offset:2px}

/* ---------- Header ---------- */

.site-header{
  position:sticky;top:0;z-index:40;
  background:rgba(13,36,56,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.header-inner{display:flex;align-items:center;gap:20px;min-height:66px}
.brand{
  display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;
  font-family:var(--serif);font-size:1.02rem;line-height:1.15;margin-right:auto;
}
.brand-mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  background:linear-gradient(160deg,var(--sea-light),var(--sea));
  border-radius:9px;font-size:1rem;
}
.brand small{display:block;font-family:var(--sans);font-size:.72rem;color:#9fc0d2;letter-spacing:.04em;text-transform:uppercase}

.site-nav ul{display:flex;gap:22px;list-style:none;margin:0;padding:0}
.site-nav a{color:#d7e6ef;text-decoration:none;font-size:.94rem}
.site-nav a:hover,.site-nav a[aria-current]{color:#fff;text-decoration:underline;text-underline-offset:5px}

.nav-toggle{
  display:none;background:transparent;border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:1.05rem;line-height:1;padding:9px 12px;border-radius:9px;cursor:pointer;
}

@media (max-width:860px){
  .nav-toggle{display:block}
  .site-nav{
    position:absolute;inset:66px 0 auto;background:var(--navy);
    border-bottom:1px solid rgba(255,255,255,.1);display:none;
  }
  .site-nav.open{display:block}
  .site-nav ul{flex-direction:column;gap:0;padding:8px 22px 18px}
  .site-nav li{border-top:1px solid rgba(255,255,255,.08)}
  .site-nav a{display:block;padding:13px 0}
}

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

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 26px;border-radius:999px;font-size:1rem;font-weight:600;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(180deg,#e0a03e,var(--amber));color:#2a1c05;box-shadow:var(--shadow-md)}
.btn-primary:hover{background:linear-gradient(180deg,#e9ac4c,var(--amber-dark));color:#2a1c05}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-outline{border-color:var(--line);background:#fff;color:var(--navy);box-shadow:var(--shadow-sm)}
.btn-outline:hover{border-color:var(--sea);color:var(--sea)}
.btn-lg{padding:17px 34px;font-size:1.06rem}

/* ---------- Hero ---------- */

.hero{
  position:relative;overflow:hidden;color:#eaf3f8;
  background:
    radial-gradient(1100px 460px at 78% -8%, rgba(63,151,180,.34), transparent 60%),
    linear-gradient(170deg,var(--navy) 0%, var(--navy-2) 58%, #0a1d2d 100%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:70px;
  background:linear-gradient(to bottom right, transparent 49.5%, var(--paper) 50%);
}
.hero-inner{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:56px;align-items:center;
  padding:76px 0 96px;
}
.hero h1{color:#fff;margin-bottom:.35em}
.hero .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;color:#9fd0e2;
  border:1px solid rgba(159,208,226,.4);border-radius:999px;padding:6px 14px;margin-bottom:22px;
}
.hero .subtitle{font-family:var(--serif);font-size:clamp(1.1rem,1rem + .6vw,1.42rem);color:#cfe3ee;margin-bottom:.7em}
.hero .authors{font-size:.98rem;color:#9fc0d2;margin-bottom:1.4em}
.hero p.lead{color:#dbe9f1;max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 16px}
.hero .disclosure{font-size:.83rem;color:#a9c4d3;max-width:52ch}
.hero .disclosure a{color:#cfe6f2}

.cover-stage{perspective:1400px}
.cover{
  position:relative;border-radius:4px 8px 8px 4px;overflow:hidden;
  box-shadow:var(--shadow-lg);
  transform:rotateY(-11deg) rotateX(2deg);
  transition:transform .4s ease;
}
.cover::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:16px;z-index:2;
  background:linear-gradient(to right, rgba(0,0,0,.42), rgba(255,255,255,.14) 60%, rgba(0,0,0,.06));
}
.cover:hover{transform:rotateY(-4deg) rotateX(1deg) translateY(-4px)}
.cover img{width:100%}

@media (max-width:920px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:52px 0 76px}
  .cover-stage{max-width:270px;order:-1}
  .cover{transform:none}
}

/* ---------- Sections ---------- */

section{padding:74px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .eyebrow{
  font-size:.75rem;letter-spacing:.15em;text-transform:uppercase;color:var(--sea);
  font-weight:700;margin:0 0 12px;
}
.section-head p{color:var(--ink-soft);font-size:1.06rem}

.alt{background:var(--sand);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

.prose p:first-of-type::first-letter{
  float:left;font-family:var(--serif);font-size:3.4rem;line-height:.82;
  padding:6px 10px 0 0;color:var(--sea);
}
.prose blockquote{
  margin:30px 0;padding:4px 0 4px 22px;border-left:3px solid var(--amber);
  font-family:var(--serif);font-size:1.16rem;color:var(--navy);font-style:italic;
}

/* ---------- Cards ---------- */

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:22px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-sm);
}
.card .ico{
  width:42px;height:42px;border-radius:11px;display:grid;place-items:center;
  background:var(--sand);border:1px solid var(--line);font-size:1.15rem;margin-bottom:14px;
}
.card h3{margin-bottom:.35em}
.card p{margin:0;color:var(--ink-soft);font-size:.96rem}

/* ---------- Timeline ---------- */

.timeline{list-style:none;margin:0;padding:0;position:relative}
.timeline::before{
  content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:var(--line);
}
.timeline li{position:relative;padding:0 0 26px 40px}
.timeline li::before{
  content:"";position:absolute;left:2px;top:7px;width:16px;height:16px;border-radius:50%;
  background:var(--paper);border:3px solid var(--sea);
}
.alt .timeline li::before{background:var(--sand)}
.timeline .year{font-family:var(--serif);font-size:1.15rem;color:var(--navy);font-weight:600;display:block}
.timeline p{margin:.2em 0 0;color:var(--ink-soft);font-size:.98rem}

/* ---------- Split / details ---------- */

.split{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
@media (max-width:900px){.split{grid-template-columns:1fr;gap:34px}}

.checklist{list-style:none;margin:0;padding:0}
.checklist li{position:relative;padding:0 0 12px 30px;color:var(--ink-soft)}
.checklist li::before{
  content:"⚓";position:absolute;left:0;top:0;color:var(--sea);font-size:.95rem;
}

.spec{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
}
.spec h3{margin:0;padding:18px 24px;background:var(--navy);color:#fff;font-size:1.05rem}
.spec dl{margin:0;padding:8px 24px 20px}
.spec div{display:flex;justify-content:space-between;gap:18px;padding:11px 0;border-bottom:1px solid var(--line)}
.spec div:last-child{border-bottom:0}
.spec dt{color:var(--ink-soft);font-size:.92rem;margin:0}
.spec dd{margin:0;font-weight:600;text-align:right;font-size:.95rem}
.spec .note{padding:0 24px 20px;margin:0;font-size:.83rem;color:var(--ink-soft)}

/* ---------- CTA band ---------- */

.cta-band{
  background:
    radial-gradient(760px 300px at 20% 0%, rgba(63,151,180,.3), transparent 62%),
    linear-gradient(160deg,var(--navy),#0a1d2d);
  color:#e6f1f7;text-align:center;
}
.cta-band h2{color:#fff}
.cta-band p{color:#c6dced;max-width:60ch;margin-left:auto;margin-right:auto}
.cta-band .btn{margin-top:14px}
.cta-band .fineprint{font-size:.82rem;color:#9fbdcd;margin-top:22px}
.cta-band .fineprint a{color:#d7ecf6}

.ad-label{
  display:inline-block;font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--ink-soft);border:1px solid var(--line);border-radius:6px;padding:3px 9px;
  background:#fff;margin-bottom:14px;
}
.cta-band .ad-label{color:#9fbdcd;background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.22)}

/* ---------- FAQ ---------- */

.faq details{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:2px 22px;margin-bottom:12px;box-shadow:var(--shadow-sm);
}
.faq summary{
  cursor:pointer;list-style:none;padding:16px 30px 16px 0;position:relative;
  font-family:var(--serif);font-size:1.06rem;color:var(--navy);font-weight:600;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";position:absolute;right:2px;top:50%;transform:translateY(-50%);
  font-size:1.4rem;color:var(--sea);line-height:1;
}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--ink-soft);font-size:.98rem}

/* ---------- Legal pages ---------- */

.page-hero{
  background:linear-gradient(160deg,var(--navy),var(--navy-2));color:#fff;padding:52px 0 46px;
}
.page-hero h1{color:#fff;margin-bottom:.25em}
.page-hero p{color:#c6dced;margin:0;max-width:65ch}
.crumbs{font-size:.85rem;color:#9fc0d2;margin-bottom:14px}
.crumbs a{color:#cfe6f2}

.legal{padding:52px 0 74px}
.legal h2{font-size:1.32rem;margin-top:2em}
.legal h3{font-size:1.05rem;margin-top:1.6em;font-family:var(--sans);color:var(--navy)}
.legal p,.legal li{color:#2c3d4c}
.legal ul{padding-left:22px}
.legal li{margin-bottom:8px}
.legal .hint{font-size:.86rem;color:var(--ink-soft);border-left:3px solid var(--line);padding-left:14px}
.legal table{width:100%;border-collapse:collapse;margin:18px 0 26px;font-size:.92rem}
.legal th,.legal td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.legal th{background:var(--sand);font-family:var(--sans);color:var(--navy)}
.legal code{background:var(--sand);border:1px solid var(--line);border-radius:5px;padding:1px 5px;font-size:.88em}
.table-scroll{overflow-x:auto}

/* ---------- Footer ---------- */

.site-footer{background:var(--navy);color:#c3d7e3;padding:56px 0 26px;font-size:.94rem}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px}
@media (max-width:780px){.footer-grid{grid-template-columns:1fr;gap:26px}}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:.6em}
.site-footer p{color:#a9c4d3;font-size:.92rem;max-width:46ch}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:9px}
.site-footer a{color:#c3d7e3;text-decoration:none}
.site-footer a:hover{color:#fff;text-decoration:underline}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 22px;justify-content:space-between;
  font-size:.85rem;color:#8fb0c2;
}
.footer-disclosure{
  margin-top:26px;padding:16px 18px;border:1px solid rgba(255,255,255,.14);
  border-radius:10px;background:rgba(255,255,255,.04);font-size:.86rem;color:#a9c4d3;
}

/* ---------- Cookie banner ---------- */

.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:60;
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);padding:22px 24px;max-width:760px;margin:0 auto;
  display:none;
}
.cookie-banner.show{display:block}
.cookie-banner h2{font-size:1.12rem;margin-bottom:.4em}
.cookie-banner p{font-size:.92rem;color:var(--ink-soft);margin-bottom:1em}
.cookie-actions{display:flex;flex-wrap:wrap;gap:10px}
.cookie-actions .btn{padding:11px 20px;font-size:.94rem}
.cookie-banner .btn-outline{background:#fff}
.cookie-options{margin:4px 0 16px;display:grid;gap:10px}
.cookie-options label{
  display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:var(--ink-soft);
  border:1px solid var(--line);border-radius:10px;padding:12px 14px;background:#fff;
}
.cookie-options input{margin-top:4px}
.cookie-options strong{color:var(--navy);display:block}
.cookie-banner[hidden]{display:none}

@media (max-width:560px){
  .cookie-actions .btn{width:100%}
}