/* ===================================================
   RESIM SERGİSİ — ART EXHIBITION
   Premium Gallery Design System
   =================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Inter:wght@300;400;500;600&family=Cormorant+Garamond:ital,wght@0,300;0,400;0,500;0,600;1,300;1,400&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Color Palette */
  --color-bg-primary: #0c0b0d;
  --color-bg-secondary: #141316;
  --color-bg-tertiary: #1c1b1f;
  --color-bg-card: #1a1920;
  --color-bg-overlay: rgba(12, 11, 13, 0.92);

  --color-text-primary: #f2efe9;
  --color-text-secondary: #a8a4b0;
  --color-text-muted: #6b6775;

  --color-accent: #c9a96e;
  --color-accent-light: #dfc08a;
  --color-accent-dark: #a88c52;
  --color-accent-glow: rgba(201, 169, 110, 0.15);

  --color-border: rgba(255, 255, 255, 0.06);
  --color-border-hover: rgba(201, 169, 110, 0.25);

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: 'Cormorant Garamond', Georgia, serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;

  /* Layout */
  --max-width: 1340px;
  --max-width-narrow: 860px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 700ms;

  /* Shadows */
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-elevated: 0 12px 48px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(201, 169, 110, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  color: inherit;
}

ul, ol {
  list-style: none;
}

::selection {
  background: var(--color-accent);
  color: var(--color-bg-primary);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--color-bg-tertiary);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dark);
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }

/* ===================================================
   HEADER / NAVIGATION
   =================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-lg) 0;
  transition: background-color var(--duration-normal) var(--ease-out),
              padding var(--duration-normal) var(--ease-out),
              backdrop-filter var(--duration-normal) var(--ease-out);
}

.site-header.scrolled {
  background-color: rgba(12, 11, 13, 0.85);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-logo-icon {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--color-accent);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  flex-shrink: 0;
}

.header-logo-text {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.header-nav a {
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-normal) var(--ease-out);
}

.header-nav a:hover {
  color: var(--color-accent-light);
}

.header-nav a:hover::after {
  width: 100%;
}

/* ─── 3D Tur Special Link ─── */
.nav-3d {
  display: inline-flex !important;
  align-items: center;
  gap: 6px;
  padding: 6px 14px !important;
  border: 1px solid rgba(201, 169, 110, 0.4);
  border-radius: 20px;
  color: var(--color-accent) !important;
  position: relative;
  overflow: hidden;
  transition: all 0.3s ease;
}

.nav-3d::after {
  display: none !important;
}

/* Shimmer sweep */
.nav-3d::before {
  content: '';
  position: absolute;
  top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(201, 169, 110, 0.15), transparent);
  animation: navShimmer 3s ease infinite;
}

@keyframes navShimmer {
  0% { left: -100%; }
  50% { left: 100%; }
  100% { left: 100%; }
}

.nav-3d:hover {
  background: rgba(201, 169, 110, 0.12);
  border-color: var(--color-accent);
  transform: scale(1.05);
  box-shadow: 0 0 20px rgba(201, 169, 110, 0.2);
}

.nav-3d-icon {
  animation: nav3dSpin 4s linear infinite;
}

@keyframes nav3dSpin {
  0% { transform: rotateY(0deg); }
  100% { transform: rotateY(360deg); }
}

.nav-3d-badge {
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 2px 6px;
  border-radius: 8px;
  background: linear-gradient(135deg, #c9a96e, #e8c97a);
  color: #0c0b0d;
  animation: badgePulse 2s ease infinite;
  line-height: 1;
}

@keyframes badgePulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(0.92); }
}

/* Mobile Menu Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-text-primary);
  transition: all var(--duration-normal) var(--ease-out);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

/* ===================================================
   HERO SECTION
   =================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 45%, rgba(201, 169, 110, 0.06) 0%, transparent 70%),
    radial-gradient(circle at 20% 80%, rgba(201, 169, 110, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(168, 140, 82, 0.03) 0%, transparent 50%);
  z-index: 1;
}

.hero-bg-line {
  position: absolute;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, transparent, var(--color-border), transparent);
  z-index: 0;
}

.hero-bg-line:nth-child(1) { left: 20%; }
.hero-bg-line:nth-child(2) { left: 40%; }
.hero-bg-line:nth-child(3) { left: 60%; }
.hero-bg-line:nth-child(4) { left: 80%; }

.hero-content {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
  max-width: 900px;
}

/* ─── Full-Screen Scattered Paintings Layer ─── */
.hero-paintings-layer {
  position: absolute;
  inset: 0;
  z-index: 1;
  overflow: hidden;
  pointer-events: none;
}

.hero-paintings-layer::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(12, 11, 13, 0.75) 0%, rgba(12, 11, 13, 0.4) 100%),
    linear-gradient(to bottom, rgba(12, 11, 13, 0.5) 0%, rgba(12, 11, 13, 0.2) 20%, rgba(12, 11, 13, 0.2) 80%, rgba(12, 11, 13, 0.7) 100%);
  z-index: 10;
  pointer-events: none;
}

.hero-paintings-layer::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--color-bg-primary) 0%, transparent 8%, transparent 92%, var(--color-bg-primary) 100%);
  z-index: 11;
  pointer-events: none;
}

.paintings-row {
  position: absolute;
  left: 0;
  right: 0;
  overflow: hidden;
}

.paintings-row--1 { top: 2%; height: 200px; }
.paintings-row--2 { top: 38%; height: 220px; }
.paintings-row--3 { bottom: 2%; height: 180px; }

.paintings-track {
  display: flex;
  gap: 16px;
  width: max-content;
  padding: 8px 0;
}

.track--left { animation: scrollLeft 55s linear infinite; }
.track--right { animation: scrollRight 55s linear infinite; }
.track--slow { animation-duration: 80s; }
.track--medium { animation-duration: 60s; }
.track--fast { animation-duration: 45s; }

.painting-card {
  flex-shrink: 0;
  width: 220px;
  height: 160px;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.04);
  opacity: 0.22;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.paintings-row--1 .painting-card { width: 240px; height: 175px; opacity: 0.18; }
.paintings-row--2 .painting-card { width: 200px; height: 150px; opacity: 0.25; }
.paintings-row--3 .painting-card { width: 180px; height: 130px; opacity: 0.2; }

.painting-card img { width: 100%; height: 100%; object-fit: cover; }

.rot-1 { transform: rotate(1.5deg); }
.rot-2 { transform: rotate(3deg); }
.rot-3 { transform: rotate(4.5deg); }
.rot-neg1 { transform: rotate(-1.5deg); }
.rot-neg2 { transform: rotate(-3deg); }
.rot-neg3 { transform: rotate(-4.5deg); }

@keyframes scrollLeft {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@keyframes scrollRight {
  0% { transform: translateX(-50%); }
  100% { transform: translateX(0); }
}

.hero-overline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.3s forwards;
}

.hero-overline::before,
.hero-overline::after {
  content: '';
  width: 40px;
  height: 1px;
  background: var(--color-accent-dark);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.5s forwards;
  text-shadow: 0 4px 40px rgba(0, 0, 0, 0.5);
}

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

/* ─── Quote Rotator ─── */
.hero-quote-rotator {
  position: relative;
  min-height: 100px;
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.6s forwards;
}

.hero-quote {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
  pointer-events: none;
}

.hero-quote.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
  position: relative;
}

.hero-quote p {
  font-family: var(--font-accent);
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300;
  font-style: italic;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.hero-quote cite {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  font-style: normal;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
}

/* ─── CTA Button ─── */
.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 2px;
  margin-bottom: var(--space-2xl);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.8s forwards;
  transition: all var(--duration-normal) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.hero-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent-dark));
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201, 169, 110, 0.25);
}

.hero-cta:hover::before {
  opacity: 1;
}

.hero-cta span,
.hero-cta svg {
  position: relative;
  z-index: 1;
}

.hero-cta svg {
  transition: transform var(--duration-fast) var(--ease-out);
}

.hero-cta:hover svg {
  transform: translateX(3px);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.hero-cta-group .hero-cta {
  margin-bottom: 0;
}

.hero-cta--secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid rgba(201, 169, 110, 0.4);
}

.hero-cta--secondary:hover {
  background: rgba(201, 169, 110, 0.1);
  border-color: var(--color-accent);
}

.hero-cta--secondary::before {
  display: none;
}

.hero-subtitle {
  font-family: var(--font-accent);
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1.8;
  max-width: 600px;
  margin: 0 auto var(--space-2xl);
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 0.7s forwards;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xl);
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) 1s forwards;
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.hero-meta-label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero-meta-value {
  font-family: var(--font-accent);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.hero-meta-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  opacity: 0;
  animation: fadeIn 1s var(--ease-out) 1.5s forwards;
}

.hero-scroll-indicator span {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent-dark), transparent);
  animation: scrollPulse 2s var(--ease-in-out) infinite;
}

/* ===================================================
   SECTION COMMON
   =================================================== */
.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section-overline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-md);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.section-overline::before,
.section-overline::after {
  content: '';
  width: 24px;
  height: 1px;
  background: var(--color-accent-dark);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

.section-description {
  font-family: var(--font-accent);
  font-size: 1.1rem;
  font-weight: 300;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===================================================
   ABOUT / INTRO SECTION
   =================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  border-radius: 2px;
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.about-image-wrapper:hover img {
  transform: scale(1.03);
}

.about-image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-border);
  pointer-events: none;
}

.about-text h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  line-height: 1.3;
  margin-bottom: var(--space-lg);
}

.about-text h3 em {
  font-style: italic;
  color: var(--color-accent);
}

.about-text p {
  font-family: var(--font-accent);
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1.9;
  margin-bottom: var(--space-lg);
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
}

.about-stat {
  text-align: center;
}

.about-stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 500;
  color: var(--color-accent);
  line-height: 1;
}

.about-stat-label {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ===================================================
   GALLERY SECTION
   =================================================== */

/* Filter Buttons */
.gallery-filters {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border: 1px solid transparent;
  border-radius: 2px;
  transition: all var(--duration-fast) var(--ease-out);
}

.filter-btn:hover {
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}

.filter-btn.active {
  color: var(--color-accent);
  border-color: var(--color-accent-dark);
  background: var(--color-accent-glow);
}

/* Gallery Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-xl);
}

/* Gallery Card */
.gallery-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
  border-color: var(--color-border-hover);
}

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

.gallery-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

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

.gallery-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12, 11, 13, 0.7) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  padding: var(--space-lg);
}

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

.gallery-card-zoom {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transform: translateY(8px);
  transition: transform var(--duration-normal) var(--ease-out);
}

.gallery-card:hover .gallery-card-zoom {
  transform: translateY(0);
}

.gallery-card-zoom svg {
  width: 16px;
  height: 16px;
  stroke: var(--color-text-primary);
  fill: none;
  stroke-width: 2;
}

.gallery-card-info {
  padding: var(--space-lg) var(--space-xl);
}

.gallery-card-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  transition: color var(--duration-fast);
}

.gallery-card:hover .gallery-card-title {
  color: var(--color-accent-light);
}

.gallery-card-artist {
  font-family: var(--font-accent);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.gallery-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.gallery-card-technique {
  font-size: 0.68rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 3px 8px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
}

.gallery-card-dimensions {
  font-size: 0.72rem;
  color: var(--color-text-muted);
}

/* ===================================================
   LIGHTBOX / DETAIL MODAL
   =================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal);
}

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

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: var(--color-bg-overlay);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
}

.lightbox-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 420px;
  width: 100%;
  height: 100%;
  transform: translateY(16px);
  transition: transform var(--duration-normal) var(--ease-out);
}

.lightbox.active .lightbox-content {
  transform: translateY(0);
}

/* Lightbox Image Area */
.lightbox-image-area {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  position: relative;
}

.lightbox-image-wrapper {
  position: relative;
  max-width: 90%;
  max-height: 85vh;
}

.lightbox-image-wrapper img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 2px;
  box-shadow: var(--shadow-elevated);
}

/* Lightbox Navigation */
.lightbox-nav-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast) var(--ease-out);
  z-index: 2;
}

.lightbox-nav-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-accent-dark);
}

.lightbox-nav-btn svg {
  width: 18px;
  height: 18px;
  stroke: var(--color-text-secondary);
  fill: none;
  stroke-width: 2;
}

.lightbox-prev { left: var(--space-xl); }
.lightbox-next { right: var(--space-xl); }

/* Lightbox Detail Panel */
.lightbox-detail {
  background: var(--color-bg-secondary);
  border-left: 1px solid var(--color-border);
  padding: var(--space-3xl) var(--space-2xl);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.lightbox-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-2xl);
  transition: all var(--duration-fast) var(--ease-out);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent-dark);
}

.lightbox-close svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-text-secondary);
  fill: none;
  stroke-width: 2;
}

.lightbox-detail-overline {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.lightbox-detail-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  line-height: 1.3;
  margin-bottom: var(--space-sm);
}

.lightbox-detail-artist {
  font-family: var(--font-accent);
  font-size: 1.1rem;
  font-weight: 300;
  font-style: italic;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
}

.lightbox-detail-divider {
  width: 40px;
  height: 1px;
  background: var(--color-accent-dark);
  margin-bottom: var(--space-2xl);
}

.lightbox-detail-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.lightbox-spec {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lightbox-spec-label {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.lightbox-spec-value {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.lightbox-detail-description {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-2xl);
  margin-top: auto;
}

.lightbox-detail-description h4 {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-md);
  color: var(--color-text-primary);
}

.lightbox-detail-description p {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1.9;
}

/* ===================================================
   SUBMISSION FORM
   =================================================== */
.submission-form-wrapper {
  max-width: 720px;
  margin: 0 auto;
  background: rgba(20, 19, 22, 0.6);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-2xl);
  backdrop-filter: blur(8px);
}

.submission-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.submission-form .form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.submission-form label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.submission-form input,
.submission-form select,
.submission-form textarea {
  width: 100%;
  padding: 12px 16px;
  background: rgba(30, 29, 33, 0.8);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.submission-form input:focus,
.submission-form select:focus,
.submission-form textarea:focus {
  outline: none;
  border-color: var(--color-accent);
}

.submission-form select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.submission-form textarea {
  resize: vertical;
  min-height: 80px;
}

.submission-upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-2xl);
  border: 2px dashed var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  color: var(--color-text-muted);
}

.submission-upload-zone:hover,
.submission-upload-zone.dragover {
  border-color: var(--color-accent);
  background: rgba(201, 169, 110, 0.04);
  color: var(--color-accent);
}

.submission-upload-zone p {
  font-size: 0.88rem;
}

.upload-browse {
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
}

.upload-hint {
  font-size: 0.72rem;
  opacity: 0.5;
}

.submission-preview {
  position: relative;
  margin-top: var(--space-md);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.submission-preview.hidden {
  display: none;
}

.submission-preview img {
  width: 100%;
  max-height: 300px;
  object-fit: cover;
}

.preview-remove {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast);
}

.preview-remove:hover {
  background: rgba(200, 50, 50, 0.8);
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: 16px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-bg-primary);
  background: var(--color-accent);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  margin-top: var(--space-lg);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(201, 169, 110, 0.25);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.submission-success {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-accent);
}

.submission-success.hidden {
  display: none;
}

.submission-success h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--color-text-primary);
}

.submission-success p {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .submission-form .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .upload-grid {
    grid-template-columns: 1fr;
  }
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.upload-slot {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.upload-slot-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.upload-slot-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-size: 0.7rem;
  font-weight: 700;
  flex-shrink: 0;
}

.upload-required {
  font-size: 0.65rem;
  color: var(--color-accent);
  font-style: italic;
}

.upload-slot-hint {
  font-size: 0.72rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-bottom: var(--space-xs);
}

.upload-slot .submission-upload-zone {
  padding: var(--space-lg);
}

.upload-slot .submission-upload-zone p {
  font-size: 0.78rem;
}

.form-group--full {
  grid-column: 1 / -1;
}

/* ===================================================
   EXHIBITION INFO SECTION
   =================================================== */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.info-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  padding: var(--space-2xl);
  text-align: center;
  transition: border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.info-card:hover {
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-glow);
}

.info-card-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent-dark);
  border-radius: 50%;
}

.info-card-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-accent);
  fill: none;
  stroke-width: 1.5;
}

.info-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}

.info-card p {
  font-family: var(--font-accent);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===================================================
   FOOTER
   =================================================== */
.site-footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.footer-brand-icon {
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-accent-dark);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
}

.footer-brand-text {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-secondary);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.footer-links a {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  transition: color var(--duration-fast);
}

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

.footer-copyright {
  width: 100%;
  text-align: center;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* ===================================================
   ANIMATIONS
   =================================================== */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% {
    opacity: 0.3;
    transform: scaleY(0.6);
    transform-origin: top;
  }
  50% {
    opacity: 1;
    transform: scaleY(1);
    transform-origin: top;
  }
}

/* ===================================================
   RESPONSIVE
   =================================================== */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }

  .lightbox-content {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
  }

  .lightbox-detail {
    border-left: none;
    border-top: 1px solid var(--color-border);
    max-height: 40vh;
  }

  .lightbox-image-area {
    padding: var(--space-xl);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .info-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-bg-secondary);
    border-left: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: var(--space-3xl);
    gap: var(--space-xl);
    transition: right var(--duration-normal) var(--ease-out);
  }

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

  .menu-toggle {
    display: flex;
  }

  .hero-title {
    font-size: clamp(2.2rem, 10vw, 3.5rem);
  }

  /* Paintings rows responsive */
  .paintings-row--1 { height: 140px; }
  .paintings-row--2 { height: 150px; }
  .paintings-row--3 { height: 110px; }

  .paintings-row--1 .painting-card { width: 160px; height: 115px; }
  .paintings-row--2 .painting-card { width: 140px; height: 105px; }
  .paintings-row--3 .painting-card { width: 130px; height: 90px; }

  .hero-quote-rotator {
    min-height: 120px;
  }

  .hero-quote p {
    font-size: 0.95rem;
  }

  .hero-cta {
    padding: 12px 24px;
    font-size: 0.72rem;
  }

  .hero-meta {
    flex-direction: column;
    gap: var(--space-lg);
  }

  .hero-meta-divider {
    width: 40px;
    height: 1px;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .gallery-filters {
    gap: var(--space-xs);
  }

  .filter-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.68rem;
  }

  .lightbox-nav-btn {
    width: 36px;
    height: 36px;
  }

  .lightbox-prev { left: var(--space-sm); }
  .lightbox-next { right: var(--space-sm); }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .about-stats {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  .hero-content {
    padding: var(--space-2xl) var(--space-lg);
  }
}