/* ── Particles ── */
#particles {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 10;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0e0f13;
  --bg-alt:     #13141a;
  --surface:    #1a1c24;
  --gold:       #c9a96e;
  --gold-dim:   #8a6e43;
  --text:       #ddd8d0;
  --text-muted: #7a7670;
  --serif:      'Playfair Display', Georgia, serif;
  --sans:       'Source Sans 3', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.75;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--text); }

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2.5rem;
  background: rgba(14, 15, 19, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(201, 169, 110, 0.1);
}

.nav-name {
  font-family: var(--serif);
  font-size: 1.05rem;
  color: var(--gold);
  letter-spacing: 0.02em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav ul a {
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  text-transform: uppercase;
  transition: color 0.2s;
}

nav ul a:hover { color: var(--gold); }

/* ── Hero ── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% 40%, rgba(201,169,110,0.05) 0%, transparent 70%),
    var(--bg);
  position: relative;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 120px;
  background: linear-gradient(to bottom, transparent, var(--bg));
}

.hero-inner { max-width: 700px; }

.hero h1 {
  font-family: var(--serif);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-bottom: 2rem;
}

.tagline {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.1rem, 2.5vw, 1.45rem);
  color: var(--gold);
  line-height: 1.6;
}

/* ── Autor ── */
.autor {
  padding: 7rem 0;
  background: var(--bg-alt);
}

.autor-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 5rem;
  align-items: start;
}

.autor-foto img {
  width: 100%;
  border-radius: 2px;
  filter: grayscale(20%);
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
}

.autor-text h2 {
  font-family: var(--serif);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--gold);
  margin-bottom: 1.75rem;
}

.autor-text p { margin-bottom: 1.1rem; }
.autor-text p:last-of-type { margin-bottom: 0; }

.autor-meta {
  margin-top: 2rem !important;
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ── Serien ── */
.serie {
  padding: 7rem 0;
  background: var(--bg);
}

.serie-alt {
  background: var(--bg-alt);
}

.serie-header {
  text-align: center;
  margin-bottom: 4rem;
}

.serie-header h2 {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 400;
  color: var(--text);
  margin-bottom: 1rem;
}

.serie-beschreibung {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Bücher-Grid ── */
.buecher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2.5rem;
}

.buecher-grid--zwei {
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  max-width: 800px;
  margin: 0 auto;
}

.buch {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 2px;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.buch:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.buch-cover-link {
  display: block;
  overflow: hidden;
  aspect-ratio: 2/3;
  background: #0a0b0e;
}

.buch-cover-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s;
}

.buch:hover .buch-cover-link img {
  transform: scale(1.03);
}

.buch-info {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.buch-band {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin-bottom: 0.4rem;
}

.buch-info h3 {
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 0.8rem;
  line-height: 1.3;
}

.buch-info p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 1.25rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.2rem;
  border: 1px solid var(--gold-dim);
  color: var(--gold);
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
  align-self: flex-start;
}

.btn:hover {
  background: var(--gold);
  color: var(--bg);
}

/* ── Footer ── */
footer {
  padding: 3rem 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  background: var(--bg);
  text-align: center;
}

footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

footer a { color: var(--text-muted); }
footer a:hover { color: var(--gold); }

.footer-amazon a {
  color: var(--gold-dim);
  font-size: 0.9rem;
}

.footer-amazon a:hover { color: var(--gold); }

/* ── Responsive ── */
@media (max-width: 768px) {
  nav ul { display: none; }

  .autor-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .autor-foto img {
    max-width: 220px;
    margin: 0 auto;
  }

  .buecher-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.5rem;
  }

  .buecher-grid--zwei {
    grid-template-columns: 1fr;
  }
}