/* ==========================================================================
   Marco Berger - Fine Art | Modern Static Stylesheet
   ========================================================================== */

:root {
  --bg-dark: #111113;
  --bg-card: #18181c;
  --bg-card-hover: #222228;
  --bg-header: rgba(17, 17, 19, 0.95);
  --text-main: #f3f3f3;
  --text-muted: #9e9ea6;
  --text-dim: #6e6e76;
  --accent: #c9ab81;
  --accent-light: #dec097;
  --accent-dark: #a98c63;
  --border-color: rgba(201, 171, 129, 0.2);
  --border-light: rgba(255, 255, 255, 0.08);
  --font-serif: 'EB Garamond', Georgia, serif;
  --font-display: 'Cinzel', 'EB Garamond', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --container-width: 1240px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-dark);
  color: var(--text-main);
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.65;
  color: var(--text-main);
  background-color: var(--bg-dark);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--text-main);
  line-height: 1.25;
}

h1 { font-size: clamp(2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.8rem); }

p {
  margin-bottom: 1.25rem;
  color: var(--text-muted);
}

p.lead {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-style: italic;
  color: var(--text-main);
  line-height: 1.7;
}

.text-accent {
  color: var(--accent);
}

.section-subtitle {
  font-family: var(--font-display);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  display: inline-block;
}

.section-title {
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  display: block;
  width: 50px;
  height: 2px;
  background-color: var(--accent);
  margin: 1.2rem auto 0;
}

.text-center .section-title::after {
  margin-left: auto;
  margin-right: auto;
}

/* Containers */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

@media (max-width: 768px) {
  .section {
    padding: 3.5rem 0;
  }
}

/* Header & Navigation */
.top-bar {
  background-color: #0b0b0d;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.82rem;
  color: var(--text-dim);
  padding: 0.5rem 0;
}

.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar a:hover {
  color: var(--accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  max-width: var(--container-width);
  margin: 0 auto;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.brand-logo img {
  height: 48px;
  width: auto;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  color: var(--text-main);
  text-transform: uppercase;
}

.brand-title span {
  display: block;
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  color: var(--accent);
  font-weight: 300;
}

/* Navigation Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: -1rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  min-width: 180px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
  padding: 0.5rem 0;
  z-index: 100;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.6rem 1.2rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.dropdown-item:hover {
  color: var(--accent);
  background-color: rgba(201, 171, 129, 0.08);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition);
}

@media (max-width: 992px) {
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    background-color: var(--bg-dark);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 1.5rem;
    box-shadow: -5px 0 25px rgba(0,0,0,0.8);
    transition: right 0.35s ease;
    z-index: 1100;
    overflow-y: auto;
  }

  .nav-menu.open {
    right: 0;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: 1rem;
  }

  .nav-close-btn {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.8rem;
    cursor: pointer;
  }

  .menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
  }

  .menu-overlay.open {
    opacity: 1;
    visibility: visible;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.9rem 2rem;
  border-radius: 0;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--accent);
  color: #111;
  border: 1px solid var(--accent);
  font-weight: 500;
}

.btn-primary:hover {
  background-color: var(--accent-light);
  border-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(201, 171, 129, 0.3);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background-color: rgba(201, 171, 129, 0.05);
}

/* Hero Section */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
  background: radial-gradient(circle at center, rgba(30, 30, 36, 0.5) 0%, rgba(17, 17, 19, 0.95) 100%);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.32;
  filter: brightness(0.7) contrast(1.1);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero-subtitle {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero-title {
  margin-bottom: 1.5rem;
  font-size: clamp(2.4rem, 6vw, 4rem);
  letter-spacing: 0.08em;
}

.hero-quote {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-style: italic;
  color: #e0e0e0;
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Category Cards Grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 2rem;
}

@media (max-width: 900px) {
  .category-grid {
    grid-template-columns: 1fr;
  }
}

.category-card {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.category-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-color);
  box-shadow: 0 15px 35px rgba(0,0,0,0.5);
}

.category-card-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.category-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.category-card:hover .category-card-img img {
  transform: scale(1.08);
}

.category-card-body {
  padding: 2rem;
  text-align: center;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.category-card-title {
  font-size: 1.4rem;
  margin-bottom: 0.8rem;
  color: var(--text-main);
}

.category-card-quote {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

/* Gallery Grid & Filter */
.gallery-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 3rem;
}

.filter-btn {
  background: transparent;
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.4rem;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background-color: var(--accent);
  color: #111;
  border-color: var(--accent);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.8rem;
}

@media (max-width: 600px) {
  .gallery-grid {
    grid-template-columns: 1fr;
  }
}

.artwork-card {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
}

.artwork-card:hover {
  border-color: var(--border-color);
  box-shadow: 0 10px 25px rgba(0,0,0,0.6);
  transform: translateY(-4px);
}

.artwork-img-wrapper {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  background-color: #0d0d0f;
}

.artwork-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.artwork-card:hover .artwork-img-wrapper img {
  transform: scale(1.06);
}

.artwork-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(17, 17, 19, 0.7);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  transition: var(--transition);
  padding: 1rem;
  text-align: center;
}

.artwork-card:hover .artwork-overlay {
  opacity: 1;
}

.artwork-overlay-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 0.8rem;
  transform: translateY(15px);
  transition: var(--transition);
}

.artwork-card:hover .artwork-overlay-icon {
  transform: translateY(0);
}

.artwork-info {
  padding: 1.2rem;
  text-align: center;
}

.artwork-title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--text-main);
  margin-bottom: 0.3rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.artwork-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
}

/* Lightbox Modal */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(10, 10, 12, 0.95);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  box-shadow: 0 15px 40px rgba(0,0,0,0.8);
  border: 1px solid var(--border-color);
}

.lightbox-caption {
  margin-top: 1rem;
  text-align: center;
}

.lightbox-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--text-main);
  letter-spacing: 0.06em;
}

.lightbox-category {
  font-size: 0.8rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--text-main);
  cursor: pointer;
  font-size: 2rem;
  transition: var(--transition);
  padding: 0.5rem;
  z-index: 2010;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  color: var(--accent);
}

.lightbox-close {
  top: 1.5rem;
  right: 1.5rem;
}

.lightbox-prev {
  left: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox-next {
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
}

/* About / Biography Section */
.bio-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
  align-items: center;
}

@media (max-width: 900px) {
  .bio-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.bio-image-wrapper {
  position: relative;
  border: 1px solid var(--border-color);
  padding: 1rem;
  background-color: var(--bg-card);
}

.bio-image-wrapper img {
  width: 100%;
  filter: contrast(1.05);
}

.bio-image-wrapper::after {
  content: '';
  position: absolute;
  top: -10px;
  right: -10px;
  width: 100%;
  height: 100%;
  border: 1px solid var(--border-color);
  z-index: -1;
}

.artist-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.artist-tag {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Commission / Auftragsarbeiten */
.feature-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.feature-box {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 2.2rem;
  text-align: center;
  transition: var(--transition);
}

.feature-box:hover {
  border-color: var(--border-color);
  transform: translateY(-5px);
}

.feature-icon {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 1.2rem;
}

.feature-box h4 {
  font-size: 1.15rem;
  margin-bottom: 0.8rem;
}

/* Exhibitions Timeline */
.exhibition-list {
  max-width: 800px;
  margin: 0 auto;
}

.exhibition-item {
  display: flex;
  gap: 2rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-light);
  align-items: baseline;
}

.exhibition-year {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--accent);
  min-width: 120px;
  font-weight: 500;
}

.exhibition-details h4 {
  font-size: 1.1rem;
  margin-bottom: 0.3rem;
}

.exhibition-details p {
  margin-bottom: 0;
  font-size: 0.9rem;
}

/* Contact Info & Forms */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
}

@media (max-width: 800px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  padding: 2.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  margin-bottom: 1.8rem;
}

.contact-icon {
  font-size: 1.4rem;
  color: var(--accent);
  margin-top: 0.2rem;
}

.contact-form .form-group {
  margin-bottom: 1.4rem;
}

.contact-form label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background-color: #0e0e10;
  border: 1px solid var(--border-light);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(201, 171, 129, 0.2);
}

/* Footer */
.site-footer {
  background-color: #0b0b0d;
  border-top: 1px solid var(--border-light);
  padding: 4rem 0 2rem;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

@media (max-width: 800px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-brand img {
  height: 42px;
  margin-bottom: 1rem;
}

.footer-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 1.2rem;
}

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-dim);
}