/* Erlebe 100 gesunde Jahre — Site Styles */
/* Color palette derived from book cover: deep teal/space, vibrant accent yellow, warm white */

:root {
  --c-bg: #0e1f24;
  --c-bg-2: #142a31;
  --c-surface: #1a363f;
  --c-ink: #f5efe2;
  --c-ink-soft: #c9d3d3;
  --c-ink-muted: #8a9a9a;
  --c-accent: #f4c430;       /* cover yellow */
  --c-accent-hot: #ffd84a;
  --c-accent-2: #46c39a;      /* cover green glow */
  --c-accent-3: #d36a7a;      /* cover magenta glow */
  --c-line: rgba(245, 239, 226, 0.12);
  --c-line-strong: rgba(245, 239, 226, 0.22);

  --f-display: 'Oswald', 'Arial Narrow', Impact, sans-serif;
  --f-body: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --maxw: 1200px;
  --radius: 6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--f-body);
  background: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'ss01';
}

img { max-width: 100%; display: block; }
a { color: var(--c-accent); text-decoration: none; }
a:hover { color: var(--c-accent-hot); text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.1;
  margin: 0 0 0.6em 0;
  text-transform: uppercase;
}
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: 1.25rem; letter-spacing: 0.04em; }

p { margin: 0 0 1.1em 0; }
.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---- Header ---- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 31, 36, 0.85);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--c-line);
}
.nav-inner {
  display: flex; align-items: center; gap: 24px;
  padding: 16px 28px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink);
  display: flex; align-items: baseline; gap: 8px;
}
.brand .accent { color: var(--c-accent); }
.brand a { color: inherit; text-decoration: none; }
.brand a:hover { color: var(--c-accent); text-decoration: none; }

nav.primary { margin-left: auto; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
nav.primary a {
  color: var(--c-ink-soft);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: color .2s, background .2s;
}
nav.primary a:hover { color: var(--c-ink); background: rgba(255,255,255,0.05); }
nav.primary a.active { color: var(--c-accent); }

.lang-switch {
  display: flex; gap: 0;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius);
  overflow: hidden;
  margin-left: 12px;
}
.lang-switch a {
  padding: 6px 12px; font-size: 0.82rem;
  color: var(--c-ink-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
}
.lang-switch a.on { background: var(--c-accent); color: #1a1a1a; }
.lang-switch a:hover:not(.on) { color: var(--c-ink); background: rgba(255,255,255,0.05); text-decoration: none; }

.menu-toggle { display: none; background: none; border: 0; color: var(--c-ink); font-size: 1.5rem; cursor: pointer; margin-left: auto; }

@media (max-width: 820px) {
  .menu-toggle { display: block; }
  nav.primary { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; align-items: stretch; background: var(--c-bg-2); border-bottom: 1px solid var(--c-line); padding: 8px 16px; }
  nav.primary.open { display: flex; }
  nav.primary a { padding: 12px 14px; }
  .lang-switch { margin-left: 0; align-self: flex-start; }
}

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(70, 195, 154, 0.18), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(244, 196, 48, 0.16), transparent 55%),
    radial-gradient(circle at 60% 20%, rgba(211, 106, 122, 0.10), transparent 55%);
  z-index: 0;
}
.hero .container { position: relative; z-index: 1; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--f-display);
  letter-spacing: 0.18em;
  font-size: 0.82rem;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 18px;
  border-left: 3px solid var(--c-accent);
  padding-left: 12px;
}
.hero h1 {
  margin-bottom: 22px;
}
.hero h1 .num { color: var(--c-accent); }
.hero-sub {
  font-size: 1.15rem;
  color: var(--c-ink-soft);
  max-width: 560px;
  margin-bottom: 36px;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 24px;
  font-family: var(--f-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s, background .2s, color .2s, border-color .2s;
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--c-accent); color: #1a1a1a; }
.btn-primary:hover { background: var(--c-accent-hot); color: #1a1a1a; }
.btn-ghost { background: transparent; color: var(--c-ink); border-color: var(--c-line-strong); }
.btn-ghost:hover { border-color: var(--c-accent); color: var(--c-accent); }

.book-frame {
  position: relative;
  display: flex; justify-content: center;
}
.book-frame img.cover {
  width: 100%;
  max-width: 380px;
  border-radius: 4px;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.55),
    0 4px 14px rgba(0,0,0,0.35),
    -10px 0 30px rgba(70, 195, 154, 0.15),
    10px 0 30px rgba(244, 196, 48, 0.15);
  transform: perspective(1400px) rotateY(-6deg);
  transition: transform .4s ease;
}
.book-frame img.cover:hover { transform: perspective(1400px) rotateY(-2deg) translateY(-4px); }

@media (max-width: 820px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 50px 0 70px; }
  .book-frame img.cover { max-width: 280px; }
}

/* ---- Section ---- */
section.block { padding: 80px 0; border-top: 1px solid var(--c-line); }
section.block.alt { background: var(--c-bg-2); }
.section-eyebrow {
  font-family: var(--f-display);
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--c-accent);
  text-transform: uppercase;
  margin-bottom: 14px;
}

.intro-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: start;
}
@media (max-width: 820px) { .intro-grid { grid-template-columns: 1fr; gap: 32px; } }

/* ---- Factor pillars ---- */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  margin-top: 40px;
}
.pillar {
  background: var(--c-bg);
  padding: 28px 22px;
  display: flex; flex-direction: column; gap: 8px;
  min-height: 150px;
}
.pillar .num {
  font-family: var(--f-display);
  font-size: 2rem;
  color: var(--c-accent);
  line-height: 1;
}
.pillar h3 { margin: 0; font-size: 0.95rem; letter-spacing: 0.06em; color: var(--c-ink); }
.pillar p { margin: 0; font-size: 0.9rem; color: var(--c-ink-muted); line-height: 1.5; }
@media (max-width: 900px) { .pillars { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .pillars { grid-template-columns: 1fr; } }

/* ---- Bullets / checklist ---- */
.checklist { list-style: none; padding: 0; margin: 24px 0; display: flex; flex-direction: column; gap: 14px; }
.checklist li {
  display: grid; grid-template-columns: 28px 1fr; gap: 14px;
  align-items: start;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}
.checklist li:last-child { border-bottom: 0; }
.checklist .mark {
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1.5px solid var(--c-accent);
  color: var(--c-accent);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
  margin-top: 2px;
}
.checklist strong { color: var(--c-ink); display: block; font-weight: 600; margin-bottom: 2px; font-size: 1.02rem; }
.checklist span.desc { color: var(--c-ink-soft); font-size: 0.96rem; }

/* ---- Card ---- */
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 30px;
}

/* ---- Author block ---- */
.author-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 50px; align-items: center;
}
.author-grid img { border-radius: var(--radius); }
@media (max-width: 820px) { .author-grid { grid-template-columns: 1fr; } }

/* ---- Footer ---- */
.site-footer {
  background: #08161a;
  border-top: 1px solid var(--c-line);
  padding: 50px 0 30px;
  margin-top: 60px;
  color: var(--c-ink-muted);
  font-size: 0.92rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 40px;
  margin-bottom: 30px;
}
.footer-grid h4 {
  font-size: 0.78rem; letter-spacing: 0.18em; color: var(--c-ink); margin-bottom: 14px;
}
.footer-grid a { color: var(--c-ink-soft); display: block; padding: 4px 0; text-decoration: none; }
.footer-grid a:hover { color: var(--c-accent); }
.socials { display: flex; flex-direction: column; gap: 6px; }
.social-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.social-row a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line-strong);
  border-radius: var(--radius);
  font-size: 0.85rem;
  color: var(--c-ink-soft);
}
.social-row a:hover { border-color: var(--c-accent); color: var(--c-accent); }
.social-row svg { width: 16px; height: 16px; }
.footer-bottom {
  border-top: 1px solid var(--c-line);
  padding-top: 20px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: 0.82rem;
}
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }

/* ---- Subpage hero ---- */
.page-hero {
  padding: 60px 0 40px;
  border-bottom: 1px solid var(--c-line);
  background:
    radial-gradient(circle at 80% 50%, rgba(244, 196, 48, 0.10), transparent 60%),
    var(--c-bg);
}
.crumbs {
  font-size: 0.85rem;
  color: var(--c-ink-muted);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}
.crumbs a { color: var(--c-ink-soft); }

/* ---- Book detail page ---- */
.book-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  align-items: start;
  padding: 60px 0;
}
.book-detail .cover-side { position: sticky; top: 100px; }
.book-detail img.cover {
  width: 100%;
  max-width: 380px;
  margin: 0 auto;
  border-radius: 4px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.55), 0 4px 14px rgba(0,0,0,0.35);
}
.book-detail .meta {
  margin-top: 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.meta-row { display: flex; gap: 14px; font-size: 0.92rem; padding: 10px 0; border-bottom: 1px solid var(--c-line); }
.meta-row .k { color: var(--c-ink-muted); width: 100px; flex-shrink: 0; }
.meta-row .v { color: var(--c-ink); }
.book-detail h2 { margin-bottom: 12px; }
.book-detail h3 { margin-top: 32px; color: var(--c-accent); font-size: 1.05rem; letter-spacing: 0.06em; }
.book-detail p { color: var(--c-ink-soft); }
.book-detail strong { color: var(--c-ink); font-weight: 600; }

@media (max-width: 900px) {
  .book-detail { grid-template-columns: 1fr; gap: 40px; }
  .book-detail .cover-side { position: static; }
}

/* ---- Coming soon block ---- */
.coming-soon {
  text-align: center;
  padding: 120px 0 140px;
}
.coming-soon .badge {
  display: inline-block;
  font-family: var(--f-display);
  letter-spacing: 0.2em;
  font-size: 0.85rem;
  color: var(--c-accent);
  border: 1px solid var(--c-accent);
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.coming-soon h1 { margin-bottom: 18px; }
.coming-soon p { font-size: 1.1rem; color: var(--c-ink-soft); max-width: 540px; margin: 0 auto 28px; }

/* ---- Quote / pullout ---- */
.pullquote {
  padding: 40px;
  border-left: 3px solid var(--c-accent);
  background: var(--c-surface);
  margin: 30px 0;
  font-family: var(--f-display);
  font-size: 1.4rem;
  line-height: 1.4;
  letter-spacing: 0.01em;
  color: var(--c-ink);
}
.pullquote .by { display: block; margin-top: 14px; font-family: var(--f-body); font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-ink-muted); font-weight: 500; }

/* ---- Author profile page ---- */
.author-hero {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
  padding: 60px 0;
}
.author-hero img.portrait { border-radius: var(--radius); aspect-ratio: 4/5; object-fit: cover; }
.author-bio { font-size: 1.08rem; color: var(--c-ink-soft); }
.author-bio p { margin-bottom: 1.2em; }
.author-quick {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  margin: 40px 0;
}
.author-quick > div { background: var(--c-bg); padding: 22px; }
.author-quick .k { font-size: 0.78rem; letter-spacing: 0.16em; color: var(--c-ink-muted); text-transform: uppercase; margin-bottom: 6px; }
.author-quick .v { font-family: var(--f-display); font-size: 1.3rem; color: var(--c-accent); }
@media (max-width: 820px) {
  .author-hero { grid-template-columns: 1fr; }
  .author-quick { grid-template-columns: 1fr; }
}

.gallery-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.gallery-2 img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: var(--radius); }
@media (max-width: 600px) { .gallery-2 { grid-template-columns: 1fr; } }

/* Impressum */
.legal { padding: 60px 0; max-width: 820px; }
.legal h2 { margin-top: 36px; font-size: 1.4rem; }
.legal p { color: var(--c-ink-soft); }