/* ============================================================
   archiv_style.css - Web-Archiv fuer buchjournal2flipbook.
   Nutzt bewusst dieselben Design-Tokens (Farben, Schrift, Radien,
   Schatten) wie templates/style_template.css, damit Flipbook und
   Archiv-Seite wie aus einem Guss wirken.
   ============================================================ */

:root {
  --bg-color: #faf7f2;
  --bg-panel: #ffffff;
  --accent: #2a6f7a;
  --accent-hover: #1f5560;
  --accent-light: #e8f0f1;
  --text-color: #2d2d2d;
  --text-muted: #6b6b6b;
  --shadow-page: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.08);
  --border-radius: 10px;
  --border-radius-sm: 6px;
  --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-ui);
  line-height: 1.5;
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

/* ---------- Kopfzeile: Logo + Titel zentriert uebereinander ---------- */

.archiv-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 16px 10px;
  background-color: var(--bg-panel);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.archiv-logo {
  height: 100px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

.archiv-header .title {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  white-space: normal;
  text-align: center;
}

.archiv-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.5rem;
}

.archiv-intro {
  max-width: 640px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
}

.archiv-shop-link-bottom {
  text-align: center;
  margin: 2.5rem 0 0;
}

.archiv-shop-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background-color: var(--accent);
  color: #fff;
  border-radius: var(--border-radius-sm);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background-color 0.2s ease;
}

.archiv-shop-link svg {
  flex-shrink: 0;
}

.archiv-shop-link:hover {
  background-color: var(--accent-hover);
  text-decoration: none;
}

.archiv-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 0;
}

/* ---------- Aktuelle Ausgaben: Karten-Grid mit Thumbnail ---------- */

.archiv-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin: 0 0 2.5rem;
}

.archiv-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border-radius: var(--border-radius);
  overflow: hidden;
  text-decoration: none;
  color: var(--text-color);
  box-shadow: var(--shadow-soft);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.archiv-card:hover,
.archiv-card:focus-visible {
  transform: translateY(-3px);
  box-shadow: var(--shadow-page);
}

.archiv-card-thumb {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  background: var(--accent-light);
  display: block;
}

.archiv-card-title {
  padding: 0.85rem 1rem 1rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--accent);
}

/* ---------- Archiv (ab Ausgabe 5): Liste + Jahres-Akkordeon ---------- */

.archiv-section h2 {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding-bottom: 0.5rem;
  margin: 0 0 0.75rem;
}

.archiv-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.archiv-list li {
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.archiv-list a,
.archiv-years a {
  display: block;
  padding: 0.6rem 0.2rem;
  color: var(--accent);
  text-decoration: none;
}

.archiv-list a:hover,
.archiv-years a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

.archiv-years details {
  background: var(--bg-panel);
  border-radius: var(--border-radius-sm);
  box-shadow: var(--shadow-soft);
  padding: 0.4rem 1rem;
  margin-bottom: 0.5rem;
}

.archiv-years summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-color);
  list-style: none;
  padding: 0.4rem 0;
}

.archiv-years summary::-webkit-details-marker {
  display: none;
}

.archiv-years summary::before {
  content: "▶ ";
  display: inline-block;
  color: var(--accent);
  transition: transform 0.15s ease;
}

.archiv-years details[open] summary::before {
  transform: rotate(90deg);
}

.archiv-years ul {
  list-style: none;
  padding-left: 0.5rem;
  margin: 0.25rem 0 0.5rem;
}

/* ---------- Footer (identisch zum Flipbook-Footer) ---------- */

.footer {
  padding: 8px 16px;
  background-color: var(--bg-panel);
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.05);
  flex-shrink: 0;
  margin-top: auto;
}

.footer p {
  margin: 0;
  line-height: 1.5;
}

.footer a {
  color: var(--accent);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

.footer-copyright {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 8px;
  justify-content: center;
  font-size: 11px;
  color: var(--text-color);
  font-weight: 500;
}

/* ---------- Responsive (Mobile-Breakpoint wie im Flipbook: 768px) ---------- */

@media (max-width: 768px) {
  .archiv-main {
    padding: 1.25rem 1rem 2rem;
  }

  .archiv-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .archiv-grid {
    grid-template-columns: 1fr 1fr;
  }

  .archiv-header .title {
    font-size: 17px;
  }
}

@media (max-width: 340px) {
  .archiv-grid {
    grid-template-columns: 1fr;
  }
}