@font-face {
  font-family: 'Merriweather';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/merriweather.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Merriweather';
  font-style: normal;
  font-weight: 700;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/merriweather.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Merriweather';
  font-style: normal;
  font-weight: 900;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/merriweather.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/open-sans.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/open-sans.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Open Sans';
  font-style: normal;
  font-weight: 700;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/open-sans.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}/* ═══════════════════════════════════════════════
   VARIABLES & RESET
═══════════════════════════════════════════════ */
body { font-family: 'Open Sans', Arial, sans-serif; color: var(--text); background: #fff; overflow-x: hidden; }/* ═══════════════════════════════════════════════
   SCROLL REVEAL
═══════════════════════════════════════════════ */
/* ═══════════════════════════════════════════════
   NAVIGATION
═══════════════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10,45,110,0.97); backdrop-filter: blur(8px);
  padding: 0 5%; height: 66px;
  display: flex; align-items: center; justify-content: space-between;
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
  transition: background 0.3s;
}
nav .logo { display: flex; align-items: center; text-decoration: none; }
nav .logo img { width: auto; height: 38px; filter: brightness(0) invert(1); }
nav ul { list-style: none; display: flex; gap: 30px; }
/* ═══════════════════════════════════════════════
   HERO
═══════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  padding-top: 66px;
}
.hero-left {
  background: linear-gradient(160deg, #061833 0%, var(--blue-dark) 50%, #0d3a80 100%);
  display: flex; flex-direction: column; justify-content: center;
  padding: 80px 6% 80px 8%;
  position: relative; overflow: hidden;
}
.hero-left::before {
  content: '';
  position: absolute; inset: 0;
  display: none;
}
.hero-left > * { position: relative; z-index: 1; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
  color: #a8d0f0; border-radius: 20px;
  padding: 6px 16px; font-size: 12px; font-weight: 700;
  letter-spacing: 1.5px; text-transform: uppercase;
  margin-bottom: 28px; width: fit-content;
}.hero-left h1 {
  font-family: 'Merriweather', serif;
  font-size: 2.9rem; font-weight: 900; line-height: 1.18;
  color: #fff; margin-bottom: 24px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}.hero-left p {
  font-size: 1.1rem; color: #a0c8e8; line-height: 1.7;
  margin-bottom: 40px; max-width: 460px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-hero-primary {
  background: var(--red); color: #fff;
  padding: 15px 32px; border-radius: 32px;
  font-weight: 700; font-size: 1rem; text-decoration: none;
  box-shadow: 0 6px 20px rgba(204,17,34,0.4);
  transition: transform 0.15s, box-shadow 0.15s;
  border: none; cursor: pointer;
}
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(204,17,34,0.5); }
.btn-hero-ghost {
  background: rgba(255,255,255,0.1); color: #fff;
  padding: 15px 32px; border-radius: 32px;
  font-weight: 600; font-size: 1rem; text-decoration: none;
  border: 1.5px solid rgba(255,255,255,0.35);
  transition: background 0.2s;
}
.btn-hero-ghost:hover { background: rgba(255,255,255,0.18); }

.hero-right {
  background: var(--blue-bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 60px 6%;
  position: relative;
}
.hero-cover-wrap {
  position: relative; width: 100%; max-width: 340px;
}
.hero-cover-shadow {
  position: absolute; inset: 20px -8px -16px 8px;
  background: rgba(10,45,110,0.25); border-radius: 12px;
  filter: blur(20px);
}
.hero-cover-img {
  width: 100%; height: auto; border-radius: 10px;
  box-shadow: 0 24px 64px rgba(10,45,110,0.35), 0 4px 16px rgba(0,0,0,0.15);
  position: relative; z-index: 1;
}
.hero-cover-badge {
  position: absolute; top: -16px; right: -16px; z-index: 2;
  background: var(--red); color: #fff;
  border-radius: 50%; width: 82px; height: 82px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-weight: 800; font-size: 0.72rem; text-align: center; line-height: 1.3;
  box-shadow: 0 4px 14px rgba(204,17,34,0.45);
  border: 3px solid #fff;
}
.hero-cover-sub {
  margin-top: 20px; text-align: center;
  font-size: 0.88rem; color: var(--gray); line-height: 1.5;
}
.hero-cover-sub strong { color: var(--blue-main); }/* ═══════════════════════════════════════════════
   STATS BAR
═══════════════════════════════════════════════ */
.stat { padding: 16px; }
.stat-num {
  font-family: 'Merriweather', serif;
  font-size: 3rem; font-weight: 900; color: #fff;
  line-height: 1; display: block; margin-bottom: 8px;
}
.stat-num span { color: var(--blue-light); }
.stat-label { font-size: 0.9rem; color: #8ab8d8; font-weight: 600; }
/* ═══════════════════════════════════════════════
   EMOTIONAL PHOTOS STRIP
═══════════════════════════════════════════════ */
.photos-section {
  padding: 90px 5%;
  background: #fff;
}
.photos-intro { max-width: 620px; margin-bottom: 56px; }
.photos-intro .section-label { color: var(--blue-mid); font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.photos-intro h2 {
  font-family: 'Merriweather', serif;
  font-size: 2.2rem; font-weight: 900; color: var(--blue-dark);
  line-height: 1.25; margin-bottom: 14px;
}
.photos-intro p { color: var(--gray); line-height: 1.7; font-size: 1.05rem; }
.photos-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 20px; align-items: stretch;
}
.photo-card {
  border-radius: 18px; overflow: hidden;
  position: relative; height: 420px;
  background: var(--blue-dark);
  cursor: default;
  box-shadow: 0 8px 32px rgba(10,45,110,0.12);
  transition: transform 0.3s, box-shadow 0.3s;
}
.photo-card:hover { transform: translateY(-6px); box-shadow: 0 18px 48px rgba(10,45,110,0.2); }
.photo-card img {
  width: 100%; height: 100%; object-fit: cover;
  position: absolute; inset: 0;
  transition: transform 0.5s ease;
}
.photo-card:hover img { transform: scale(1.04); }
.photo-card-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(5,20,60,0.88) 0%, rgba(5,20,60,0.3) 55%, transparent 100%);
}
.photo-card-body {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 28px 26px;
}
.photo-card-icon { font-size: 2rem; margin-bottom: 10px; }
.photo-card h3 { font-family:'Merriweather',serif; font-size: 1.2rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.photo-card p { font-size: 0.88rem; color: rgba(255,255,255,0.78); line-height: 1.5; }

/* ═══════════════════════════════════════════════
   BRAIN DIAGRAM SECTION
═══════════════════════════════════════════════ */
.brain-section {
  background: var(--blue-bg);
  padding: 90px 5%;
  overflow: hidden;
}
.brain-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 70px; align-items: center; max-width: 1100px; margin: 0 auto;
}
.brain-text .section-label { color: var(--blue-mid); font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.brain-text h2 { font-family:'Merriweather',serif; font-size: 2.1rem; font-weight: 900; color: var(--blue-dark); line-height: 1.28; margin-bottom: 20px; }
.brain-text p { color: var(--gray); line-height: 1.75; font-size: 1rem; margin-bottom: 20px; }
.brain-functions { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.brain-fn {
  display: flex; align-items: flex-start; gap: 14px;
  background: #fff; border-radius: 14px; padding: 16px 18px;
  box-shadow: 0 2px 12px rgba(26,93,174,0.08);
  transition: transform 0.2s;
}
.brain-fn:hover { transform: translateX(4px); }
.brain-fn .fn-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: var(--blue-main); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; flex-shrink: 0;
}
.brain-fn .fn-text strong { display: block; font-weight: 700; color: var(--blue-dark); margin-bottom: 3px; font-size: 0.95rem; }
.brain-fn .fn-text span { font-size: 0.85rem; color: var(--gray); }

/* Brain radial diagram */
.brain-diagram {
  position: relative; width: 100%; max-width: 420px;
  aspect-ratio: 1; margin: 0 auto;
}
.brain-core {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 120px; height: 120px;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-main));
  border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  box-shadow: 0 8px 32px rgba(10,45,110,0.35), 0 0 0 12px rgba(26,93,174,0.12);
  z-index: 10; cursor: default;
  animation: core-pulse 3s ease-in-out infinite;
}
@keyframes core-pulse {
  0%,100% { box-shadow: 0 8px 32px rgba(10,45,110,0.35), 0 0 0 12px rgba(26,93,174,0.12); }
  50% { box-shadow: 0 8px 32px rgba(10,45,110,0.35), 0 0 0 22px rgba(26,93,174,0.08); }
}
.brain-core .core-icon { font-size: 2.8rem; line-height: 1; }
.brain-core .core-label { font-size: 0.68rem; color: rgba(255,255,255,0.8); font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-top: 2px; }

.brain-node {
  position: absolute;
  --r: 155px;
  top: calc(50% + var(--r) * sin(var(--a)) - 46px);
  left: calc(50% + var(--r) * cos(var(--a)) - 46px);
}
/* Fallback for browsers without sin/cos in CSS */
.brain-node { position: absolute; }
.bn1 { top: 2.38%;  left: 38.1%;  }
.bn2 { top: 27.06%; left: 72.06%; }
.bn3 { top: 66.99%; left: 59.09%; }
.bn4 { top: 66.99%; left: 17.1%;  }
.bn5 { top: 27.06%; left: 4.13%;  }

.node-circle {
  width: 100px; height: 100px; border-radius: 50%;
  background: #fff; border: 3px solid var(--blue-pale);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 8px;
  box-shadow: 0 4px 16px rgba(26,93,174,0.14);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
  cursor: default;
  animation: node-glow 4s ease-in-out infinite;
}
.bn1 .node-circle { animation-delay: 0s; }
.bn2 .node-circle { animation-delay: 0.8s; }
.bn3 .node-circle { animation-delay: 1.6s; }
.bn4 .node-circle { animation-delay: 2.4s; }
.bn5 .node-circle { animation-delay: 3.2s; }
@keyframes node-glow {
  0%,85%,100% { border-color: var(--blue-pale); box-shadow: 0 4px 16px rgba(26,93,174,0.14); transform: scale(1); }
  92% { border-color: var(--blue-main); box-shadow: 0 4px 24px rgba(26,93,174,0.35); transform: scale(1.06); }
}
.node-circle:hover {
  border-color: var(--blue-main) !important;
  box-shadow: 0 6px 24px rgba(26,93,174,0.3) !important;
  transform: scale(1.08) !important;
}
.node-icon { font-size: 1.6rem; line-height: 1; margin-bottom: 3px; }
.node-label { font-size: 0.65rem; font-weight: 700; color: var(--blue-dark); line-height: 1.2; text-align: center; hyphens: none; word-break: normal; overflow: visible; }

/* Connecting lines (SVG overlay) */
.brain-lines {
  position: absolute; inset: 0; pointer-events: none;
}
.brain-line {
  stroke: var(--blue-pale); stroke-width: 1.5;
  stroke-dasharray: 6 4;
  animation: line-travel 4s linear infinite;
}
@keyframes line-travel {
  0% { stroke-dashoffset: 0; }
  100% { stroke-dashoffset: -40; }
}

/* ═══════════════════════════════════════════════
   AKTUELLE AUSGABE
═══════════════════════════════════════════════ */
.ausgabe-section {
  background: linear-gradient(135deg, var(--blue-dark) 0%, #0d3a80 100%);
  padding: 90px 5%;
}
.ausgabe-inner {
  display: grid; grid-template-columns: auto 1fr;
  gap: 70px; align-items: center; max-width: 1000px; margin: 0 auto;
}
.ausgabe-cover {
  width: 240px; flex-shrink: 0;
  position: relative;
}
.ausgabe-cover img {
  width: 100%; height: auto; border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45);
}
.ausgabe-cover-ribbon {
  position: absolute; top: 14px; left: -12px;
  background: var(--red); color: #fff;
  padding: 5px 14px 5px 20px; font-weight: 800; font-size: 0.78rem;
  border-radius: 0 4px 4px 0;
  box-shadow: 3px 3px 8px rgba(0,0,0,0.25);
}
.ausgabe-cover-ribbon::before {
  content: ''; position: absolute; left: 0; bottom: -7px;
  border-left: 7px solid transparent;
  border-right: 0 solid transparent;
  border-top: 7px solid #8b0000;
}
.ausgabe-text .section-label { color: var(--blue-light); font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px; }
.ausgabe-text h2 {
  font-family: 'Merriweather', serif; font-size: 2.2rem; font-weight: 900;
  color: #fff; line-height: 1.28; margin-bottom: 18px;
}
.ausgabe-text p { color: #a0c4e0; font-size: 1.05rem; line-height: 1.7; margin-bottom: 28px; }
.ausgabe-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 32px; }
.ausgabe-weitere-label { font-size: 0.78rem; font-weight: 700; color: var(--blue-light); letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 8px; }
.ausgabe-tag {
  background: rgba(255,255,255,0.1); color: #c8e0f5;
  border-radius: 20px; padding: 6px 16px;
  font-size: 0.83rem; font-weight: 600;
  border: 1px solid rgba(255,255,255,0.18);
}
.btn-ausgabe {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--red); color: #fff;
  padding: 13px 28px; border-radius: 28px;
  font-weight: 700; font-size: 0.97rem; text-decoration: none;
  box-shadow: 0 4px 16px rgba(204,17,34,0.4);
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-ausgabe:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(204,17,34,0.5); }

/* ═══════════════════════════════════════════════
   UEBUNGEN (kept from v1, refined)
═══════════════════════════════════════════════ */
.uebungen-section { background: linear-gradient(180deg, #f0f6ff 0%, #fff 100%); padding: 90px 5%; text-align: center; }
.uebungen-section .section-label { color: var(--blue-mid); font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; display: block; //xt-transform: uppercase; margin-bottom: 10px; }
.uebungen-section h2 { font-family:'Merriweather',serif; font-size: 2.1rem; font-weight: 900; color: var(--blue-dark); line-height: 1.28; margin-bottom: 14px; }
.uebungen-intro { color: var(--gray); max-width: 580px; margin: 0 auto 44px; font-size: 1rem; line-height: 1.7; }
.ueb-tabs { display: flex; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; justify-content: center; }
.ueb-tab {
  background: var(--blue-bg); border: 2px solid var(--blue-pale);
  color: var(--gray); border-radius: 28px;
  padding: 10px 22px; font-weight: 700; font-size: 0.93rem;
  cursor: pointer; transition: all 0.2s;
}
.ueb-tab.active, .ueb-tab:hover {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue-mid)); color: #fff; border-color: var(--blue-dark);
  box-shadow: 0 4px 14px rgba(26,93,174,0.3); transform: translateY(-2px);
}
.ueb-panel { display: none; }
.ueb-panel.active { display: block; }
.ueb-card {
  background: #fff; border-radius: 20px; padding: 40px;
  max-width: 680px; margin: 0 auto;
  box-shadow: 0 8px 40px rgba(26,93,174,0.13);
  border-top: 5px solid var(--blue-main);
  text-align: left;
}
.ueb-card h3 {
  font-family:'Merriweather',serif; font-size: 1.3rem; font-weight: 700;
  color: var(--blue-dark); margin-bottom: 6px;
  display: flex; align-items: center; gap: 10px;
}
.ueb-nr {
  background: var(--blue-main); color: #fff; border-radius: 50%;
  width: 28px; height: 28px; display: inline-flex;
  align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 800; flex-shrink: 0;
}
.ueb-desc { color: var(--gray); margin-bottom: 20px; font-size: 0.95rem; line-height: 1.6; }
.ueb-example { background: #fff; border-radius: 10px; padding: 12px 16px; margin-bottom: 20px; font-size: 0.9rem; color: var(--gray); border-left: 3px solid var(--blue-main); }
.ueb-example strong { color: var(--blue-dark); }

.qs-list { list-style: none; }
.qs-row { display: flex; align-items: center; gap: 14px; padding: 11px 0; border-bottom: 1px solid var(--blue-pale); }
.qs-row:last-child { border: none; }
.qs-lbl { font-weight: 800; color: var(--blue-main); min-width: 22px; font-size: 0.95rem; }
.qs-num { font-size: 1rem; font-weight: 600; letter-spacing: 2px; color: var(--blue-dark); flex: 1; font-variant-numeric: tabular-nums; }
.qs-arr { color: var(--blue-light); }
.qs-inp {
  width: 54px; height: 42px; border: 2px solid var(--blue-pale);
  border-radius: 8px; text-align: center;
  font-size: 1.2rem; font-weight: 700; color: var(--blue-main);
  background: #fff; outline: none; transition: border-color 0.2s;
}
.qs-inp:focus { border-color: var(--blue-main); }
.qs-inp.ok  { border-color: #2e7d32; background: #e8f5e9; color: #2e7d32; }
.qs-inp.err { border-color: #c62828; background: #ffebee; color: #c62828; }

.os-buchst { display: flex; flex-wrap: wrap; gap: 7px; justify-content: center; margin: 18px 0; }
.os-bx {
  width: 46px; height: 46px; border-radius: 9px;
  background: var(--blue-main); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; font-weight: 800;
  box-shadow: 0 3px 8px rgba(26,93,174,0.2);
}
.os-inp {
  width: 100%; max-width: 380px; height: 50px;
  border: 2px solid var(--blue-pale); border-radius: 12px;
  text-align: center; font-size: 1.1rem; font-weight: 700;
  color: var(--blue-dark); background: #fff; outline: none;
  letter-spacing: 3px; display: block; margin: 0 auto;
  transition: border-color 0.2s;
}
.os-inp:focus { border-color: var(--blue-main); }
.os-hint-txt { text-align: center; font-size: 0.85rem; color: var(--gray); margin-bottom: 10px; }

.wl-cross {
  display: grid;
  grid-template-areas: ". top ." "left mid right" ". bot .";
  grid-template-columns: auto 1fr auto;
  gap: 5px; width: fit-content; margin: 20px auto; align-items: center;
}
.wl-piece {
  background: #fff; border-radius: 9px;
  padding: 9px 16px; font-size: 1.1rem; font-weight: 800;
  color: var(--blue-dark); border: 2px solid var(--blue-pale);
  letter-spacing: 1px; text-align: center; min-width: 80px;
}
.wl-mid-box { grid-area: mid; border: 2px dashed var(--blue-main); border-radius: 9px; padding: 7px 4px; min-width: 100px; }
.wl-inp {
  width: 100%; border: none; outline: none;
  text-align: center; font-size: 1.1rem; font-weight: 800;
  color: var(--blue-main); background: transparent; letter-spacing: 3px;
}
.wl-keys { text-align: center; font-size: 0.83rem; color: var(--gray); margin-top: 8px; line-height: 1.5; }

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.btn-check {
  background: var(--blue-main); color: #fff; padding: 11px 24px; border-radius: 22px;
  font-weight: 700; font-size: 0.9rem; border: none; cursor: pointer; transition: background 0.2s;
}.btn-sec {
  background: #fff; color: var(--blue-main);
  padding: 11px 24px; border-radius: 22px;
  font-weight: 600; font-size: 0.9rem;
  border: 2px solid var(--blue-pale); cursor: pointer;
  transition: border-color 0.2s;
}/* ═══════════════════════════════════════════════
   TESTIMONIALS
═══════════════════════════════════════════════ */
.testi-section::before {
  content: ''; position: absolute; inset: 0;
  display: none;
}
.testi-section > * { position: relative; z-index: 1; }
.testi-section .section-label { color: var(--blue-light); font-size: 0.78rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 10px; }
.testi-section h2 { font-family:'Merriweather',serif; font-size: 2.1rem; font-weight: 900; color: #fff; margin-bottom: 48px; }/* 3-sichtbare Karten Carousel */
.testi-card-inner {
  background: #ffffff;
  border: none;
  border-radius: 16px; padding: 32px 30px 28px;
  height: 100%; box-sizing: border-box;
  display: flex; flex-direction: column;
  box-shadow: 0 6px 28px rgba(0,0,0,0.22);
}.testi-text { font-size: 1rem; line-height: 1.7; color: #1a1a2e; font-style: italic; margin-bottom: 16px; flex-grow: 1; }.testi-avatar {
  width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, #d0e4f7, #aac8ee);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem; margin-bottom: 10px;
  border: 2px solid #b8d4ee;
}
.testi-name { font-weight: 700; color: var(--blue-dark); font-size: 0.95rem; margin-top: 10px; }
.testi-loc { font-size: 0.85rem; color: #5a7a9a; margin-top: 2px; }

/* ═══════════════════════════════════════════════
   CTA
═══════════════════════════════════════════════ */
.cta-section {
  position: relative; min-height: 520px;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 90px 5%;
  overflow: hidden;
}
.cta-bg {
  position: absolute; inset: 0;
  background: transparent;
}
.cta-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(140,0,0,0.92) 0%, rgba(80,0,0,0.88) 100%);
}
.cta-content { position: relative; z-index: 1; max-width: 700px; }
.cta-icon { font-size: 4rem; margin-bottom: 20px; display: block; }
.cta-content h2 {
  font-family: 'Merriweather', serif;
  font-size: 2.5rem; font-weight: 900; color: #fff;
  line-height: 1.25; margin-bottom: 20px;
  text-shadow: 0 2px 16px rgba(0,0,0,0.3);
}
.cta-content p { font-size: 1.1rem; color: rgba(255,255,255,0.88); margin-bottom: 38px; line-height: 1.6; }
.btn-cta-main {
  background: #fff; color: var(--red);
  padding: 17px 44px; border-radius: 34px;
  font-weight: 800; font-size: 1.1rem; text-decoration: none;
  display: inline-block;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  transition: transform 0.15s, box-shadow 0.2s;
}
.btn-cta-main:hover { transform: translateY(-3px); box-shadow: 0 14px 32px rgba(0,0,0,0.3); }
.cta-note { margin-top: 20px; font-size: 0.92rem; color: rgba(255,255,255,0.7); }
.cta-note strong { color: rgba(255,255,255,0.92); }

/* ═══════════════════════════════════════════════
   BÜCHER
═══════════════════════════════════════════════ */
.books-section {
  background: #f4f7fb;
  padding: 90px 5%;
}
.books-section .section-label {
  color: var(--blue-main); font-size: 0.78rem; font-weight: 700;
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 12px;
}
.books-section h2 {
  font-family: 'Merriweather', serif;
  font-size: 2.1rem; font-weight: 900; color: var(--blue-dark);
  margin-bottom: 14px;
}
.books-intro {
  font-size: 1.05rem; color: #3a4a5a; line-height: 1.7;
  max-width: 680px; margin-bottom: 52px;
}
.books-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 44px;
}
.book-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(10,45,110,0.10);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex; flex-direction: column;
}
.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(10,45,110,0.18);
}
.book-cover {
  width: 100%; aspect-ratio: 1/1;
  object-fit: contain; display: block;
  background: #eef2f8;
  padding: 10px; box-sizing: border-box;
}
.book-info {
  padding: 18px 20px 22px;
  flex-grow: 1; display: flex; flex-direction: column;
}
.book-badge {
  display: inline-block;
  background: var(--blue-dark); color: #fff;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 1px;
  text-transform: uppercase; border-radius: 4px;
  padding: 3px 8px; margin-bottom: 10px;
  align-self: flex-start;
}
.book-badge.new { background: var(--red); }
.book-title {
  font-family: 'Merriweather', serif;
  font-size: 0.95rem; font-weight: 900; color: var(--blue-dark);
  line-height: 1.35; margin-bottom: 8px;
}
.book-desc {
  font-size: 0.85rem; color: #5a6a7a; line-height: 1.6;
  flex-grow: 1; margin-bottom: 16px;
}
.book-pages {
  font-size: 0.78rem; color: #8a9ab0; margin-bottom: 14px;
}
.btn-book-detail {
  display: block; text-align: center;
  background: transparent; color: var(--blue-main);
  padding: 10px 16px; border-radius: 8px;
  font-size: 0.85rem; font-weight: 700; text-decoration: none;
  border: 2px solid var(--blue-main);
  transition: background 0.2s, color 0.2s;
  margin-bottom: 8px;
}
.btn-book-detail:hover { background: var(--blue-main); color: #fff; }
.btn-book {
  display: block; text-align: center;
  background: var(--blue-main); color: #fff;
  padding: 10px 16px; border-radius: 8px;
  font-size: 0.85rem; font-weight: 700; text-decoration: none;
  transition: background 0.2s;
}
.btn-book:hover { background: var(--blue-dark); }
.books-cta-hint {
  text-align: center;
  font-size: 0.95rem; color: #5a6a7a;
}
.books-cta-hint a {
  color: var(--blue-main); font-weight: 700; text-decoration: none;
}
.books-cta-hint a:hover { text-decoration: underline; }
@media (max-width: 960px) {
  .books-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .books-grid { grid-template-columns: 1fr; gap: 16px; }
}
/* ═══════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════ */
footer {
  background: #07111f; color: #6a7f92;
  padding: 52px 5% 28px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 36px; }
.footer-logo img { width: auto; height: 34px; filter: brightness(0) invert(1) opacity(0.8); margin-bottom: 14px; }
.footer-desc { font-size: 0.88rem; line-height: 1.65; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.08); color: #9ab8cc;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem; text-decoration: none; transition: background 0.2s;
}
.footer-social a:hover { background: rgba(255,255,255,0.15); color: #fff; }
footer h3 { color: #c0d4e0; font-size: 0.88rem; font-weight: 700; margin-bottom: 14px; letter-spacing: 0.5px; }
footer ul { list-style: none; }
footer ul li { margin-bottom: 8px; }
footer ul li a { color: #5a7a90; text-decoration: none; font-size: 0.86rem; transition: color 0.2s; }
footer ul li a:hover { color: #b8d4e8; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 22px; display: flex;
  justify-content: space-between; align-items: center;
  font-size: 0.82rem;
}
.footer-bottom a { color: #4a7a95; text-decoration: none; }

/* ═══════════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════════ */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
  .hero-left { min-height: 60vh; padding: 90px 6% 60px; }
  .hero-left h1 { font-size: 2.2rem; }
  .hero-right { padding: 50px 8%; }
  .hero-cover-wrap { max-width: 240px; }
  .brain-inner { grid-template-columns: 1fr; gap: 50px; }
  .brain-diagram { max-width: 320px; }
  .ausgabe-inner { grid-template-columns: 1fr; gap: 40px; }
  .ausgabe-cover { width: 180px; margin: 0 auto; }
  .testi-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  nav ul { display: none; }
  .stats-bar { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 700px) {
  .photos-grid { grid-template-columns: 1fr; }
  .photo-card { height: 300px; }
  .ueb-card { padding: 24px 18px; }
  .cta-content h2 { font-size: 1.8rem; }
  .brain-node { scale: 1; }
  .brain-core { width: 90px; height: 90px; }
  .brain-core .core-icon { font-size: 2.1rem; }
  .brain-core .core-label { font-size: 0.58rem; }
  .node-circle { width: 76px; height: 76px; padding: 5px; }
  .node-icon { font-size: 1.2rem; }
  .node-label { font-size: 0.52rem; }
}
@media (max-width: 640px) {
  .testi-track { align-items: flex-start; }
  .testi-card-inner { height: auto; padding: 22px 20px 18px; }
  .testi-text { flex-grow: 0; }
  .testi-quote { font-size: 2.2rem; margin-bottom: 8px; }
}

/* ── VERLAGSFAMILIE ────────────────────────────────────── */
.vf-section{background:#eef2fa;padding:72px 24px}
.vf-inner{max-width:980px;margin:0 auto;text-align:center}
.vf-title{font-family:'Merriweather',Georgia,serif;font-size:1.75rem;color:#0A2D6E;margin:0 0 10px;font-weight:700}
.vf-sub{color:#556;font-size:.95rem;margin:0 0 44px;line-height:1.7}
.vf-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.vf-card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 14px rgba(10,45,110,.09);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.vf-card:not(.vf-dim):hover{transform:translateY(-5px);box-shadow:0 10px 28px rgba(10,45,110,.16)}
.vf-dim{opacity:.75}
.vf-cover-wrap{width:100%;aspect-ratio:1/1;overflow:hidden;position:relative}
.vf-cover-wrap img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;transition:transform .3s}
.vf-card:not(.vf-dim):hover .vf-cover-wrap img{transform:scale(1.03)}
.vf-dim .vf-cover-wrap img{filter:grayscale(25%)}
.vf-badge-soon-overlay{position:absolute;top:12px;right:12px;background:rgba(255,255,255,.92);color:#7a8aa0;border-radius:20px;padding:5px 14px;font-size:.78rem;font-weight:700;letter-spacing:.3px}
.vf-info{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.vf-issue{font-size:.73rem;font-weight:600;color:#aaa;letter-spacing:.8px;text-transform:uppercase;margin:0}
.vf-mname{font-family:'Merriweather',Georgia,serif;font-size:1rem;font-weight:700;margin:0;line-height:1.3}
.vf-text{color:#556;font-size:.86rem;line-height:1.6;margin:0;flex:1}
.vf-btn{display:inline-block;padding:11px 22px;border-radius:6px;font-size:.86rem;font-weight:700;text-decoration:none;color:#fff;transition:background .2s;text-align:center;margin-top:10px}
.vf-btn:hover{opacity:.88}
@media(max-width:720px){.vf-grid{grid-template-columns:1fr;gap:18px}.vf-title{font-size:1.4rem}}

  /* fb-overlay */
  #fbOverlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.82);z-index:9000;align-items:center;justify-content:center;}
  #fbOverlay.active{display:flex;}
  .fb-inner{position:relative;background:#1A5DAE;border-radius:12px;padding:16px 16px 12px;max-width:94vw;max-height:94vh;display:flex;flex-direction:column;align-items:center;gap:10px;overflow:hidden;}
  #fb-close-btn{position:absolute;top:8px;right:12px;background:none;border:none;color:#fff;font-size:1.6rem;cursor:pointer;line-height:1;z-index:1;}
  #kf-flipbook{touch-action:none;overflow:hidden;}
  #kf-flipbook .kfmag-page{background:#fff;overflow:hidden;}
  #kf-flipbook .kfmag-page img{width:100%;height:100%;object-fit:cover;display:block;pointer-events:none;user-select:none;}
  .fb-nav{display:flex;align-items:center;gap:12px;}
  .fb-nav-btn{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);color:#fff;padding:7px 20px;border-radius:20px;cursor:pointer;font-size:13px;font-weight:600;font-family:inherit;}
  .fb-nav-btn:disabled{opacity:.3;cursor:default;}
  #kf-page-label{color:rgba(255,255,255,.7);font-size:13px;min-width:120px;text-align:center;}
  .btn-rein{display:inline-flex;align-items:center;gap:8px;background:transparent;
    border:2px solid rgba(255,255,255,.7);color:#fff;padding:12px 26px;border-radius:32px;
    font-size:15px;font-weight:700;cursor:pointer;letter-spacing:.03em;margin-top:10px;
    transition:background .18s,border-color .18s,transform .1s;font-family:inherit;
    text-decoration:none;white-space:nowrap}
  .btn-rein:hover{background:rgba(255,255,255,.15);border-color:#fff;transform:translateY(-2px)}
.no-wrap{white-space:nowrap}