/* ==========================================================================
   Fotogalerie – Stylesheet
   Schlichtes, modernes, weißes Design.
   Nur systemeigene Schriften – keine externen Fonts, Plugins oder CDNs.
   ========================================================================== */

:root {
  /* Farben */
  --color-bg: #fbfaf8;
  --color-surface: #ffffff;
  --color-text: #191816;
  --color-text-muted: #6f6b66;
  --color-border: #e7e3dd;
  --color-border-strong: #d8d3cb;
  --color-overlay: #0e0d0c;
  --color-focus: #1d4ed8;

  /* Schriften: ausschließlich auf dem System vorinstallierte Schriftarten */
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, "Times New Roman", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Abstände */
  --space-1: 0.5rem;
  --space-2: 0.75rem;
  --space-3: 1.25rem;
  --space-4: 2rem;
  --space-5: 3.5rem;
  --space-6: 6rem;

  --max-width: 1180px;
  --radius: 2px;
  --transition: 220ms ease;
}

@media (prefers-reduced-motion: reduce) {
  :root { --transition: 0ms; }
  * { animation-duration: 0ms !important; transition-duration: 0ms !important; }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ---------- Kopfzeile ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-3);
}

.brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  text-decoration: none;
}

.main-nav {
  display: flex;
  gap: var(--space-4);
  font-size: 0.92rem;
}

.main-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--transition), border-color var(--transition);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-text);
  border-color: var(--color-text);
}

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

.hero {
  padding: var(--space-6) 0 var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}

.hero p {
  max-width: 38em;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin: 0;
}

/* ---------- Galerie-Übersicht ---------- */

.section {
  padding: var(--space-5) 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.section-head h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  margin: 0;
  font-weight: 600;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

.gallery-card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  cursor: pointer;
  border-radius: var(--radius);
}

.gallery-card .thumb-frame {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-border);
}

.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 420ms ease;
}

.gallery-card:hover img,
.gallery-card:focus-visible img {
  transform: scale(1.045);
}

.gallery-card .scrim {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-3) var(--space-3) var(--space-2);
  background: linear-gradient(to top, rgba(10, 10, 10, 0.66), rgba(10, 10, 10, 0));
  color: #fff;
}

.gallery-card .scrim h3 {
  margin: 0 0 2px;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.gallery-card .scrim .count {
  font-size: 0.8rem;
  opacity: 0.85;
}

/* ---------- Galerie-Detailansicht ---------- */

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin-bottom: var(--space-3);
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
  font-family: var(--font-body);
}

.back-link:hover { color: var(--color-text); }

.back-link svg { width: 14px; height: 14px; }

.gallery-detail h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  margin: 0 0 var(--space-1);
}

.gallery-detail .meta {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-4);
  font-size: 0.95rem;
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-2);
}

.thumb-grid button {
  position: relative;
  padding: 0;
  border: 1px solid var(--color-border);
  background: var(--color-border);
  cursor: zoom-in;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
}

.thumb-grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 320ms ease, opacity var(--transition);
}

.thumb-grid button:hover img,
.thumb-grid button:focus-visible img {
  transform: scale(1.05);
}

.empty-state {
  color: var(--color-text-muted);
  border: 1px dashed var(--color-border-strong);
  padding: var(--space-4);
  text-align: center;
  border-radius: var(--radius);
}

/* ---------- Lightbox ---------- */

.lightbox {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  display: none;
  align-items: stretch;
  justify-content: center;
  z-index: 100;
}

.lightbox.is-open { display: flex; }

.lightbox-figure {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-6);
}

.lightbox-figure img {
  max-width: 100%;
  max-height: 86vh;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.985);
  transition: opacity 200ms ease, transform 200ms ease;
}

.lightbox-figure img.is-visible {
  opacity: 1;
  transform: scale(1);
}

.lightbox-close,
.lightbox-info-toggle,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  z-index: 5;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fdfdfc;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition);
}

.lightbox-close:hover,
.lightbox-info-toggle:hover,
.lightbox-prev:hover,
.lightbox-next:hover { background: rgba(255, 255, 255, 0.2); }

.lightbox-close svg,
.lightbox-prev svg,
.lightbox-next svg { width: 20px; height: 20px; }

.lightbox-close { top: var(--space-3); right: var(--space-3); }

.lightbox-info-toggle { top: var(--space-3); left: var(--space-3); }

.lightbox-info-toggle .info-icon {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 700;
  font-size: 1.1rem;
  line-height: 1;
}

.lightbox-info-toggle[aria-pressed="true"] {
  background: rgba(255, 255, 255, 0.85);
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.85);
}

.lightbox-prev { left: var(--space-3); top: 50%; transform: translateY(-50%); }
.lightbox-next { right: var(--space-3); top: 50%; transform: translateY(-50%); }

.lightbox-counter {
  position: absolute;
  z-index: 5;
  bottom: var(--space-3);
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

/* ---------- Lightbox: Info-Panel (Dateiname, Beschreibung, EXIF) ---------- */

.lightbox-info {
  position: absolute;
  top: 0;
  right: 0;
  z-index: 6;
  width: min(360px, 88vw);
  height: 100%;
  overflow-y: auto;
  background: var(--color-surface);
  color: var(--color-text);
  padding: var(--space-4) var(--space-3) var(--space-4);
  box-shadow: -16px 0 40px rgba(10, 9, 8, 0.35);
  transform: translateX(100%);
  transition: transform 280ms ease;
}

.lightbox-info.is-open { transform: translateX(0); }

.lightbox-info-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin: 0 0 var(--space-2) auto;
  border-radius: 50%;
}

.lightbox-info-close:hover { color: var(--color-text); background: var(--color-bg); }
.lightbox-info-close svg { width: 16px; height: 16px; }

.lightbox-info-filename {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 var(--space-2);
  word-break: break-word;
}

.lightbox-info-desc {
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.lightbox-info-exif h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 var(--space-2);
}

.lightbox-info-exif dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4em 1em;
  margin: 0;
  font-size: 0.9rem;
}

.lightbox-info-exif dt { color: var(--color-text-muted); }
.lightbox-info-exif dd { margin: 0; }

.info-exif-note {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0;
}

@media (max-width: 640px) {
  .lightbox-info {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: auto;
    height: auto;
    max-height: 72vh;
    box-shadow: 0 -16px 40px rgba(10, 9, 8, 0.35);
    transform: translateY(100%);
    border-radius: var(--radius) var(--radius) 0 0;
  }
  .lightbox-info.is-open { transform: translateY(0); }

  /* Auf kleinen Bildschirmen überdeckt das Infofeld die Navigation –
     daher währenddessen ausblenden, statt unklickbare Buttons zu zeigen. */
  .lightbox.info-aktiv .lightbox-prev,
  .lightbox.info-aktiv .lightbox-next,
  .lightbox.info-aktiv .lightbox-counter {
    visibility: hidden;
  }
}

@media (min-width: 641px) {
  /* Auf breiteren Bildschirmen weicht die Navigation seitlich aus,
     damit sie nicht unter dem Info-Panel verschwindet. */
  .lightbox.info-aktiv .lightbox-close {
    right: calc(min(360px, 88vw) + var(--space-3));
  }
  .lightbox.info-aktiv .lightbox-next {
    right: calc(min(360px, 88vw) + var(--space-3));
  }
  .lightbox.info-aktiv .lightbox-figure {
    padding-right: calc(min(360px, 88vw) + var(--space-4));
  }
  .lightbox.info-aktiv .lightbox-counter {
    right: min(360px, 88vw);
  }
}

@media (max-width: 640px) {
  .lightbox-figure { padding: var(--space-3); }
  .lightbox-prev, .lightbox-next, .lightbox-close, .lightbox-info-toggle { width: 40px; height: 40px; }
  .lightbox-prev { left: var(--space-1); }
  .lightbox-next { right: var(--space-1); }
  .lightbox-close { right: var(--space-1); }
  .lightbox-info-toggle { left: var(--space-1); }
}

/* ---------- Rechtstexte (Impressum / Datenschutz) ---------- */

.legal h1 {
  font-family: var(--font-display);
  font-size: 2.1rem;
  margin-bottom: var(--space-4);
}

.legal h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-top: var(--space-4);
}

.legal p, .legal li { color: var(--color-text); }
.legal p { max-width: 72em; }

.note-box {
  border: 1px solid var(--color-border-strong);
  background: var(--color-surface);
  padding: var(--space-3);
  margin: var(--space-3) 0 var(--space-4);
  font-size: 0.92rem;
  color: var(--color-text-muted);
  border-radius: var(--radius);
}

.note-box strong { color: var(--color-text); }

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

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  margin-top: var(--space-5);
}

.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: center;
  justify-content: space-between;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.site-footer nav { display: flex; gap: var(--space-3); }

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

.link-button {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  color: inherit;
  cursor: pointer;
  text-decoration: none;
}
.link-button:hover { color: var(--color-text); }

/* ---------- Cookie-Banner ---------- */

.cookie-banner {
  position: fixed;
  left: var(--space-3);
  right: var(--space-3);
  bottom: var(--space-3);
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  box-shadow: 0 12px 36px rgba(20, 18, 16, 0.14);
  padding: var(--space-3) var(--space-3) var(--space-3);
  border-radius: var(--radius);
  z-index: 200;
  transform: translateY(16px);
  opacity: 0;
  transition: transform 260ms ease, opacity 260ms ease;
}

.cookie-banner.is-visible { transform: translateY(0); opacity: 1; }
.cookie-banner[hidden] { display: none; }

.cookie-banner p {
  margin: 0 0 var(--space-3);
  font-size: 0.92rem;
  color: var(--color-text-muted);
}

.cookie-banner a { text-decoration: underline; }

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.btn {
  font-family: var(--font-body);
  font-size: 0.88rem;
  padding: 0.6em 1.1em;
  border-radius: var(--radius);
  cursor: pointer;
  border: 1px solid var(--color-text);
  background: var(--color-text);
  color: var(--color-surface);
  transition: opacity var(--transition);
}

.btn:hover { opacity: 0.85; }

.btn.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn.btn-outline:hover { border-color: var(--color-text); opacity: 1; }

@media (max-width: 480px) {
  .site-header .wrap { flex-wrap: wrap; }
  .main-nav { gap: var(--space-3); font-size: 0.85rem; }
}

[hidden] { display: none !important; }