/* ============================================================
   KUNSTGALERIE – Global Styles
   Design: Editorial / Refined Art-Space Aesthetic
   Palette: Warm Ivory · Deep Charcoal · Antique Gold
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400;1,500&family=Crimson+Pro:ital,wght@0,300;0,400;1,300&family=Spectral+SC:wght@300;400&display=swap');

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
  --ivory:        #F7F3EC;
  --ivory-dark:   #EDE8DF;
  --charcoal:     #1C1C1B;
  --charcoal-mid: #3A3A38;
  --charcoal-lt:  #6B6B68;
  --gold:         #B8963E;
  --gold-lt:      #D4AF62;
  --gold-pale:    #F0E4C4;
  --white:        #FDFAF5;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Crimson Pro', Georgia, serif;
  --font-label:   'Spectral SC', Georgia, serif;

  --gap:          clamp(1.5rem, 4vw, 3rem);
  --max-w:        1320px;
  --nav-h:        72px;

  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  background-color: var(--ivory);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ────────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.8rem, 7vw, 5.5rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.5rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); }

.label {
  font-family: var(--font-label);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}

p { max-width: 68ch; }

/* ── Layout Helpers ────────────────────────────────────────── */
.container {
  width: min(var(--max-w), 100% - 3rem);
  margin-inline: auto;
}

.section { padding-block: clamp(4rem, 10vw, 8rem); }

/* ── Navigation ────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease-out), box-shadow 0.4s;
}

.site-nav.scrolled {
  background: rgba(247, 243, 236, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(184, 150, 62, 0.2);
}

.nav-inner {
  width: min(var(--max-w), 100% - 3rem);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  transition: color 0.2s;
}
.nav-logo span { color: var(--gold); }
.nav-logo:hover { color: var(--gold); }

.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--charcoal-mid);
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}

.nav-links a:hover,
.nav-links a.active { color: var(--gold); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 1px;
  background: var(--charcoal);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* Mobile nav */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    background: var(--ivory);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.4s var(--ease-out), opacity 0.4s;
    border-bottom: 1px solid var(--ivory-dark);
    box-shadow: 0 8px 24px rgba(28,28,27,0.08);
  }
  .nav-links.open { transform: translateY(0); opacity: 1; }
}

/* ── Hero (Startseite) ─────────────────────────────────────── */
.hero {
  min-height: 100svh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 60%, rgba(184,150,62,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 80% 30%, rgba(184,150,62,0.05) 0%, transparent 50%);
}

.hero-rule {
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--gold), transparent);
  margin: 1.5rem auto;
}

.hero-eyebrow {
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.25em;
  color: var(--gold);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: 300;
  line-height: 1.0;
  letter-spacing: -0.02em;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-subtitle {
  margin-top: 1.5rem;
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--charcoal-lt);
  font-weight: 300;
  max-width: 50ch;
  margin-inline: auto;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--charcoal-lt);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: scrollBounce 2s ease-in-out infinite;
}

.hero-scroll::after {
  content: '';
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--gold-lt), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(5px); }
}

/* ── Gallery Grid (Übersicht) ──────────────────────────────── */
.galleries-section {
  padding-block: clamp(5rem, 10vw, 9rem);
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  gap: 1rem;
  flex-wrap: wrap;
}

.section-header .label { margin-bottom: 0.75rem; }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.gallery-card {
  display: block;
  position: relative;
  overflow: hidden;
  background: var(--charcoal);
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease-out), opacity 0.4s;
  opacity: 0.85;
}

.gallery-card:hover .gallery-card-img {
  transform: scale(1.06);
  opacity: 0.65;
}

.gallery-card-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--charcoal-mid) 0%, var(--charcoal) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s;
}

.gallery-card:hover .gallery-card-placeholder { opacity: 0.7; }

.gallery-card-placeholder svg {
  opacity: 0.2;
  width: 48px; height: 48px;
}

.gallery-card-info {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.75rem;
  background: linear-gradient(to top, rgba(28,28,27,0.85) 0%, transparent 60%);
  color: var(--ivory);
}

.gallery-card-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.75rem);
  font-weight: 300;
  font-style: italic;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.gallery-card-count {
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--gold-lt);
}

/* Reveal animation */
.gallery-card {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out),
              box-shadow 0.4s;
}
.gallery-card.visible { opacity: 1; transform: none; }
.gallery-card:hover { box-shadow: 0 20px 50px rgba(28,28,27,0.25); }

/* ── Einzelgalerie ─────────────────────────────────────────── */
.gallery-page-header {
  padding-top: calc(var(--nav-h) + 4rem);
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--ivory-dark);
  margin-bottom: 3rem;
}

.breadcrumb {
  font-family: var(--font-label);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--charcoal-lt);
  margin-bottom: 1.5rem;
}

.breadcrumb a { color: var(--gold); }
.breadcrumb a:hover { text-decoration: underline; }

.gallery-page-title {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-style: italic;
  margin-bottom: 0.5rem;
}

.gallery-page-meta {
  font-size: 0.9rem;
  color: var(--charcoal-lt);
  font-style: italic;
}

/* Artwork Grid */
.artwork-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr));
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: 6rem;
}

.artwork-item {
  cursor: pointer;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.artwork-item.visible { opacity: 1; transform: none; }

.artwork-img-wrap {
  overflow: hidden;
  background: var(--charcoal);
  margin-bottom: 1.25rem;
  position: relative;
}

.artwork-img-wrap img {
  width: 100%;
  display: block;
  transition: transform 0.6s var(--ease-out), opacity 0.3s;
}

.artwork-item:hover .artwork-img-wrap img {
  transform: scale(1.04);
}

.artwork-zoom-icon {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.5);
  opacity: 0;
  width: 44px; height: 44px;
  border: 1px solid rgba(255,255,255,0.8);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: white;
  transition: opacity 0.3s, transform 0.3s var(--ease-out);
  pointer-events: none;
}

.artwork-item:hover .artwork-zoom-icon {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.artwork-number {
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  margin-bottom: 0.4rem;
}

.artwork-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-style: italic;
  margin-bottom: 0.5rem;
}

.artwork-text {
  font-size: 0.9rem;
  color: var(--charcoal-mid);
  line-height: 1.6;
  font-style: italic;
}

/* ── Lightbox ──────────────────────────────────────────────── */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(28,28,27,0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease-out);
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-inner {
  display: grid;
  grid-template-columns: 1fr 340px;
  max-width: min(1200px, 100vw - 4rem);
  max-height: calc(100svh - 4rem);
  gap: 0;
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
}

@media (max-width: 900px) {
  .lightbox-inner {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    max-width: min(600px, 100vw - 2rem);
  }
}

.lightbox-img-area {
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  min-height: 300px;
}

.lightbox-img-area img {
  max-width: 100%;
  max-height: calc(100svh - 8rem);
  object-fit: contain;
  transition: opacity 0.3s;
}

.lightbox-info {
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-left: 1px solid rgba(255,255,255,0.08);
  overflow-y: auto;
  max-height: calc(100svh - 4rem);
}

.lightbox-number {
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  color: var(--gold-lt);
}

.lightbox-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 300;
  font-style: italic;
  color: var(--ivory);
  line-height: 1.2;
}

.lightbox-text {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: rgba(247,243,236,0.7);
  line-height: 1.7;
  font-style: italic;
  flex: 1;
}

.lightbox-nav {
  display: flex;
  gap: 0.75rem;
  margin-top: auto;
}

.lightbox-btn {
  flex: 1;
  padding: 0.6rem 1rem;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--ivory);
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.lightbox-btn:hover {
  border-color: var(--gold);
  background: rgba(184,150,62,0.1);
}

.lightbox-close {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 36px; height: 36px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: var(--ivory);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: border-color 0.2s, background 0.2s;
  z-index: 10;
}

.lightbox-close:hover {
  border-color: var(--gold);
  background: rgba(184,150,62,0.15);
}

/* ── Contact Form ──────────────────────────────────────────── */
.contact-section {
  padding-top: calc(var(--nav-h) + 5rem);
  padding-bottom: 6rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-intro h2 { margin-bottom: 1rem; }
.contact-intro p { color: var(--charcoal-lt); font-style: italic; }

.contact-detail {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-detail-item .label { margin-bottom: 0.3rem; }
.contact-detail-item p { font-size: 0.95rem; color: var(--charcoal-mid); }

.divider-gold {
  width: 40px; height: 1px;
  background: var(--gold);
  margin: 2rem 0;
}

/* Form */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.form-field label {
  font-family: var(--font-label);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--charcoal-lt);
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--white);
  border: 1px solid var(--ivory-dark);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  border-radius: 0;
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(184,150,62,0.1);
}

.form-field textarea { min-height: 160px; resize: vertical; }

.form-check {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.form-check input[type="checkbox"] {
  width: 18px; height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--gold);
}

.form-check label {
  font-size: 0.85rem;
  color: var(--charcoal-lt);
  line-height: 1.5;
}

.form-check a { color: var(--gold); text-decoration: underline; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 2rem;
  background: var(--charcoal);
  color: var(--ivory);
  font-family: var(--font-label);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  border: 1px solid var(--charcoal);
  cursor: pointer;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gold);
  transform: translateX(-101%);
  transition: transform 0.35s var(--ease-out);
}

.btn-primary:hover::before { transform: none; }
.btn-primary:hover { border-color: var(--gold); }
.btn-primary span { position: relative; }

.form-success {
  background: rgba(184,150,62,0.1);
  border: 1px solid var(--gold);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.5rem;
  font-style: italic;
  color: var(--charcoal-mid);
  display: none;
}

/* ── Static Pages (Datenschutz, Impressum) ─────────────────── */
.static-page {
  padding-top: calc(var(--nav-h) + 5rem);
  padding-bottom: 6rem;
}

.static-page h1 {
  font-size: clamp(2.2rem, 6vw, 4rem);
  margin-bottom: 2.5rem;
  font-style: italic;
}

.static-page h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.static-page p,
.static-page ul,
.static-page address {
  font-size: 0.95rem;
  color: var(--charcoal-mid);
  margin-bottom: 1rem;
  line-height: 1.75;
  font-style: normal;
}

.static-page address { font-style: normal; }
.static-page ul { padding-left: 1.25rem; list-style: disc; }
.static-page a { color: var(--gold); text-decoration: underline; }

.static-content {
  max-width: 720px;
}

.prose-divider {
  width: 40px; height: 1px;
  background: var(--gold);
  margin: 3rem 0;
}

/* ── Footer ────────────────────────────────────────────────── */
.site-footer {
  background: var(--charcoal);
  color: rgba(247,243,236,0.5);
  padding-block: 3rem 2rem;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ivory);
  font-style: italic;
}

.footer-logo span { color: var(--gold); }

.footer-links {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  font-family: var(--font-label);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 0.78rem;
  font-family: var(--font-label);
  letter-spacing: 0.1em;
}

/* ── Animations & Utilities ────────────────────────────────── */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.fade-in.visible { opacity: 1; transform: none; }

.text-gold { color: var(--gold); }
.text-italic { font-style: italic; }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1.5rem; }
.mt-lg { margin-top: 3rem; }

/* ── Error / Empty States ──────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--charcoal-lt);
}

.empty-state h3 {
  font-size: 1.5rem;
  font-style: italic;
  margin-bottom: 0.75rem;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-label);
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 2rem;
  transition: gap 0.2s;
}
.back-link:hover { gap: 0.75rem; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 480px) {
  html { font-size: 16px; }
  .lightbox-inner { max-width: 100vw; max-height: 100svh; }
  .artwork-grid { grid-template-columns: 1fr; }
}