/**
 * Modern Archive Theme — Refined Museum & Archive Design
 * Inspired by White Cube, Kress Collection, Design Library Concept
 */

/* ============================================
   Google Fonts Import
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400&display=swap');

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors */
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #3b82f6;
  --secondary: #64748b;
  --accent: #c9a55a;

  --background: #fafaf8;
  --foreground: #1a1a1a;
  --surface: #ffffff;
  --muted: #f0eeeb;
  --muted-foreground: #6b6b6b;
  --border: #e5e2dd;
  --border-light: #f0eeeb;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Typography */
  --font-serif: 'DM Serif Display', 'Georgia', 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  --text-4xl: 2.75rem;
  --text-5xl: 3.5rem;
  --text-6xl: 4.5rem;

  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  --leading-none: 1;
  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.06em;
  --tracking-wider: 0.12em;

  /* Border Radius */
  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.04);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.06), 0 1px 2px -1px rgb(0 0 0 / 0.06);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.06), 0 2px 4px -2px rgb(0 0 0 / 0.04);
  --shadow-lg: 0 10px 30px -8px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 50px -12px rgb(0 0 0 / 0.15);

  /* Transitions */
  --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 600ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-elegant: 700ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Container */
  --container-max: 1280px;
  --container-padding: 1.5rem;
}

@media (min-width: 768px) {
  :root {
    --container-padding: 2.5rem;
  }
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--foreground);
  background-color: var(--background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

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

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

ul, ol {
  list-style: none;
}

::selection {
  background: var(--foreground);
  color: var(--background);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: var(--font-normal);
  line-height: var(--leading-tight);
  color: var(--foreground);
  letter-spacing: var(--tracking-tight);
}

h4, h5, h6 {
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  line-height: var(--leading-snug);
  color: var(--foreground);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-4);
}

.label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--muted-foreground);
}

/* ============================================
   Layout
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow { max-width: 900px; }
.container-wide { max-width: 1440px; }
.container-full { max-width: none; }

/* Grid */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (min-width: 640px) {
  .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

/* Flex */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1 1 0%; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Spacing */
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* ============================================
   Header
   ============================================ */
.site-header {
  position: relative;
  z-index: 50;
  background: var(--background);
  transition: all var(--transition-base);
}

.site-header.sticky {
  position: sticky;
  top: 0;
}

.site-header.is-scrolled {
  background: rgba(250, 250, 248, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border);
}

.site-header.transparent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  border-bottom: none;
}

.site-header.transparent .site-title a,
.site-header.transparent .nav-link {
  color: white;
}

.site-header.transparent .menu-toggle span {
  background: white;
}

.site-header.transparent .search-input {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.2);
  color: white;
}

.site-header.transparent .search-input::placeholder {
  color: rgba(255,255,255,0.6);
}

.site-header.transparent .search-icon {
  color: rgba(255,255,255,0.6);
}

.site-header.transparent.is-scrolled {
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  gap: var(--space-8);
}

.site-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: var(--font-normal);
  flex-shrink: 0;
  letter-spacing: var(--tracking-tight);
}

.site-title a {
  color: var(--foreground);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-title a:hover {
  color: var(--foreground);
}

.site-title img {
  height: 48px;
  width: auto;
}

/* Navigation */
.main-nav {
  display: none;
}

.main-nav > ul,
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav > ul > li {
  position: relative;
}

@media (min-width: 1024px) {
  .main-nav {
    display: flex;
    align-items: center;
  }
}

.nav-link,
.main-nav a {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  color: var(--foreground);
  font-size: 0.8rem;
  font-weight: var(--font-normal);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  position: relative;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-link::after,
.main-nav > ul > li > a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: var(--space-4);
  right: var(--space-4);
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

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

.nav-link:hover::after,
.main-nav > ul > li > a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active::after,
.main-nav > ul > li.active > a::after {
  transform: scaleX(1);
}

/* Mobile Menu Button */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--space-2);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--foreground);
  transition: all var(--transition-base);
}

@media (min-width: 1024px) {
  .menu-toggle { display: none; }
}

/* Search */
.header-search {
  position: relative;
}

.search-input {
  width: 220px;
  padding: var(--space-2) var(--space-4);
  padding-left: var(--space-10);
  border: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
  font-size: var(--text-sm);
  transition: all var(--transition-base);
}

.search-input:focus {
  outline: none;
  border-color: var(--foreground);
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-foreground);
  pointer-events: none;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  padding: var(--space-16) var(--space-4);
  background: #1a1a1a;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 8s ease;
}

.hero:hover .hero-bg {
  transform: scale(1.03);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom,
    rgba(0,0,0,0.2) 0%,
    rgba(0,0,0,0.4) 50%,
    rgba(0,0,0,0.7) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 800px;
  color: white;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: var(--font-normal);
  margin-bottom: var(--space-6);
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: white;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  font-weight: var(--font-light);
  opacity: 0.8;
  margin-bottom: var(--space-10);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.hero-align-left { justify-content: flex-start; }
.hero-align-left .hero-content { text-align: left; margin-left: 0; }
.hero-align-right { justify-content: flex-end; }
.hero-align-right .hero-content { text-align: right; margin-right: 0; }

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: all var(--transition-base);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}

.btn-primary:hover {
  background: transparent;
  color: var(--foreground);
}

.btn-secondary {
  background: transparent;
  color: var(--foreground);
  border-color: var(--border);
}

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

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.4);
  color: white;
}

.btn-outline:hover {
  background: white;
  color: var(--foreground);
  border-color: white;
}

.btn-lg {
  padding: var(--space-4) var(--space-12);
  font-size: var(--text-sm);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}

/* ============================================
   Resource Cards
   ============================================ */
.resource-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  overflow: hidden;
  transition: all var(--transition-elegant);
  position: relative;
}

.resource-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.resource-card__media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--muted);
}

.resource-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-elegant);
}

.resource-card:hover .resource-card__media img {
  transform: scale(1.06);
}

.resource-card__content {
  flex: 1;
  padding: var(--space-5) var(--space-4) var(--space-6);
}

.resource-card__type {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--muted-foreground);
  margin-bottom: var(--space-3);
}

.resource-card__title {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--font-normal);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-2);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.resource-card__title a {
  color: var(--foreground);
}

.resource-card__title a:hover {
  color: var(--accent);
}

.resource-card__description {
  font-size: var(--text-sm);
  color: var(--muted-foreground);
  line-height: var(--leading-normal);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* List view */
.resource-list .resource-card {
  flex-direction: row;
}

.resource-list .resource-card__media {
  width: 240px;
  aspect-ratio: 1;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .resource-list .resource-card {
    flex-direction: column;
  }
  .resource-list .resource-card__media {
    width: 100%;
    aspect-ratio: 4 / 5;
  }
}

/* Card meta */
.card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-light);
  font-size: var(--text-xs);
  color: var(--muted-foreground);
}

/* ============================================
   Browse Controls
   ============================================ */
.browse-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-8);
  border-bottom: 1px solid var(--border);
}

.browse-title {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: var(--font-normal);
  letter-spacing: var(--tracking-tight);
}

.browse-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  margin-bottom: var(--space-8);
}

.browse-filters {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.layout-toggle {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  padding: 2px;
}

.layout-toggle button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 32px;
  color: var(--muted-foreground);
  transition: all var(--transition-fast);
}

.layout-toggle button:hover {
  color: var(--foreground);
}

.layout-toggle button.active {
  background: var(--foreground);
  color: var(--background);
}

.sort-select {
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--border);
  background: transparent;
  font-size: var(--text-sm);
  cursor: pointer;
}

/* ============================================
   Item Detail Page
   ============================================ */
.item-show {
  padding: var(--space-4) 0 var(--space-20);
}

.item-show__hero {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-12);
}

@media (min-width: 1024px) {
  .item-show__hero {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }
}

/* Image Viewer */
.image-viewer {
  background: #0a0a0a;
  overflow: hidden;
}

.viewer-main {
  position: relative;
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.viewer-main img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

.viewer-controls {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.375rem;
  padding: 0.375rem;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
}

.viewer-controls button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition-fast);
}

.viewer-controls button:hover {
  color: white;
  background: rgba(255, 255, 255, 0.1);
}

.viewer-thumbs {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  overflow-x: auto;
  background: #0a0a0a;
}

.viewer-thumb {
  flex-shrink: 0;
  width: 72px;
  height: 54px;
  overflow: hidden;
  border: 2px solid transparent;
  opacity: 0.5;
  transition: all var(--transition-fast);
  cursor: pointer;
  padding: 0;
  background: none;
}

.viewer-thumb:hover,
.viewer-thumb.active {
  opacity: 1;
  border-color: white;
}

.viewer-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Item Info */
.item-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.item-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--font-normal);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--foreground);
}

.item-description {
  font-size: var(--text-lg);
  color: var(--muted-foreground);
  line-height: var(--leading-relaxed);
  font-weight: var(--font-light);
}

/* Metadata Table */
.metadata-table {
  width: 100%;
  border-collapse: collapse;
}

.metadata-table th,
.metadata-table td {
  padding: var(--space-4) 0;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.metadata-table th {
  width: 180px;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--muted-foreground);
}

.metadata-table td {
  font-size: var(--text-base);
  color: var(--foreground);
}

@media (max-width: 768px) {
  .metadata-table th {
    width: 130px;
  }
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: #1a1a1a;
  color: #f5f5f3;
  padding-top: var(--space-20);
}

.footer-grid {
  display: grid;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
  }
}

.footer-brand {
  max-width: 380px;
}

.footer-logo {
  height: 36px;
  margin-bottom: var(--space-6);
  filter: brightness(0) invert(1);
}

.footer-description {
  color: rgba(255,255,255,0.5);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.footer-title {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-6);
  color: rgba(255,255,255,0.4);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
}

.contact-item a {
  color: rgba(255,255,255,0.6);
}

.contact-item a:hover {
  color: white;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-8) 0;
}

.copyright {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
  letter-spacing: var(--tracking-wide);
}

.social-links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: rgba(255,255,255,0.4);
  border: 1px solid rgba(255,255,255,0.1);
  transition: all var(--transition-base);
}

.social-link:hover {
  background: white;
  color: #1a1a1a;
  border-color: white;
}

/* ============================================
   Sections
   ============================================ */
.section {
  padding: var(--space-20) 0;
}

.section-header {
  margin-bottom: var(--space-12);
}

.section-header--center {
  text-align: center;
}

.section-title {
  font-family: var(--font-serif);
  font-size: var(--text-4xl);
  font-weight: var(--font-normal);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--muted-foreground);
  max-width: 550px;
  font-weight: var(--font-light);
  line-height: var(--leading-relaxed);
}

.section-header--center .section-subtitle {
  margin: 0 auto;
}

.section-divider {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin-bottom: var(--space-6);
}

.section-header--center .section-divider {
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   Pagination
   ============================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  margin-top: var(--space-16);
}

.page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-normal);
  color: var(--foreground);
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
}

.page-link:hover {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}

.page-link.active {
  background: var(--foreground);
  color: var(--background);
  border-color: var(--foreground);
}

.page-link:disabled,
.page-link[disabled] {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

/* ============================================
   Search Filters
   ============================================ */
.search-filters {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: var(--space-6);
}

.filter-group { margin-bottom: var(--space-6); }

.filter-title {
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-3);
}

.filter-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.filter-option {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  cursor: pointer;
}

.filter-option input {
  width: 16px;
  height: 16px;
  accent-color: var(--foreground);
}

/* ============================================
   Utilities
   ============================================ */
.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;
}

.hidden { display: none; }

@media (min-width: 1024px) {
  .lg\:hidden { display: none; }
  .lg\:block { display: block; }
  .lg\:flex { display: flex; }
}

@media (max-width: 1023px) {
  .mobile\:hidden { display: none; }
}

.text-center { text-align: center; }
.w-full { width: 100%; }
.relative { position: relative; }
.absolute { position: absolute; }

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background: var(--foreground);
  color: var(--background);
  font-weight: var(--font-medium);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
  color: var(--background);
}

/* Sort selector */
.sort-selector {
  padding: 0.5rem 2.5rem 0.5rem 1rem;
  border: 1px solid var(--border);
  background: transparent;
  font-size: var(--text-sm);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
}

.sort-selector:focus {
  outline: none;
  border-color: var(--foreground);
}

/* ============================================
   Animations
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes revealLine {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* Scroll reveal: elements start visible, JS adds .will-animate to hide them,
   then IntersectionObserver adds .is-visible to reveal with transition */
[data-animate].will-animate {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].is-visible {
  opacity: 1 !important;
  transform: translateY(0) !important;
}

/* Stagger */
[data-animate]:nth-child(1) { transition-delay: 0ms; }
[data-animate]:nth-child(2) { transition-delay: 80ms; }
[data-animate]:nth-child(3) { transition-delay: 160ms; }
[data-animate]:nth-child(4) { transition-delay: 240ms; }
[data-animate]:nth-child(5) { transition-delay: 320ms; }
[data-animate]:nth-child(6) { transition-delay: 400ms; }
[data-animate]:nth-child(7) { transition-delay: 480ms; }
[data-animate]:nth-child(8) { transition-delay: 560ms; }

/* Page load animation */
.js-loaded main {
  animation: fadeIn 0.6s ease;
}

/* ============================================
   Mobile Menu
   ============================================ */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 49;
  background: var(--background);
  padding-top: 80px;
}

.mobile-menu.is-open {
  display: flex;
  flex-direction: column;
  animation: fadeIn 0.3s ease;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  padding: var(--space-8) 0;
}

.mobile-nav ul {
  display: flex;
  flex-direction: column;
}

.mobile-nav-link {
  display: block;
  padding: var(--space-4) var(--container-padding);
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  font-weight: var(--font-normal);
  color: var(--foreground);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--accent);
  padding-left: calc(var(--container-padding) + 0.5rem);
}

.mobile-search {
  padding: var(--space-6) var(--container-padding);
  border-top: 1px solid var(--border);
}

/* ============================================
   Fullscreen mode
   ============================================ */
.viewer-main:fullscreen {
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.viewer-main:fullscreen img {
  max-width: 95vw;
  max-height: 95vh;
}

/* ============================================
   Breadcrumbs
   ============================================ */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--muted-foreground);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-8);
}

.breadcrumbs a {
  color: var(--muted-foreground);
}

.breadcrumbs a:hover {
  color: var(--foreground);
}

.breadcrumbs .separator {
  color: var(--border);
}

/* ============================================
   Marquee / Horizontal Scroll
   ============================================ */
.marquee-container {
  overflow: hidden;
  white-space: nowrap;
  padding: var(--space-6) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.marquee-content {
  display: inline-flex;
  gap: var(--space-16);
  animation: marquee 30s linear infinite;
}

.marquee-item {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: var(--muted-foreground);
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
}

.marquee-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

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

/* ============================================
   Print - Envanter Formu (A4)
   ============================================ */
@media print {
  /* Hide EVERYTHING except item-show content */
  .site-header, .site-footer, .browse-controls, .pagination, .mobile-menu,
  .prefooter, .hero-search, .hero-slider__controls, .hero-dots,
  .viewer-controls, .viewer-thumbs,
  .skip-link, .vexh, .game-container, .game-tabs,
  .section-divider,
  header, footer, nav,
  .breadcrumbs,
  .user-bar #user-bar,
  #user-bar {
    display: none !important;
  }
  /* Hide all buttons */
  .btn, button:not(.viewer-thumb) {
    display: none !important;
  }

  /* Nuclear hide - target every direct child of body except main */
  body > header { display: none !important; visibility: hidden !important; height: 0 !important; max-height: 0 !important; overflow: hidden !important; padding: 0 !important; margin: 0 !important; }
  body > footer { display: none !important; visibility: hidden !important; height: 0 !important; max-height: 0 !important; overflow: hidden !important; padding: 0 !important; margin: 0 !important; }
  body > section { display: none !important; visibility: hidden !important; height: 0 !important; max-height: 0 !important; overflow: hidden !important; padding: 0 !important; margin: 0 !important; }
  body > a { display: none !important; }
  body > style { }
  body > main { display: block !important; visibility: visible !important; height: auto !important; max-height: none !important; }

  body {
    font-size: 9pt !important;
    color: #000 !important;
    background: white !important;
    font-family: 'Inter', Arial, sans-serif !important;
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
    padding: 0 !important;
    margin: 0 !important;
  }

  main { padding: 0 !important; margin: 0 !important; }

  * { box-shadow: none !important; }
  a { color: #000 !important; text-decoration: none !important; }

  @page {
    size: A4;
    margin: 1.2cm 1.5cm;
  }

  /* ---- Inventory Form Header ---- */
  .item-show::before {
    content: '';
    display: block;
    border-bottom: 3px double #000;
    padding-bottom: 6px;
    margin-bottom: 12px;
  }

  .breadcrumbs {
    display: none !important;
  }

  .item-show {
    padding: 0 !important;
  }

  /* ---- Two column: image left, info right ---- */
  .item-show__hero {
    display: grid !important;
    grid-template-columns: 180px 1fr !important;
    gap: 1.2rem !important;
    margin-bottom: 0.8rem !important;
    padding-bottom: 0.8rem !important;
    border-bottom: 1px solid #ccc !important;
    page-break-inside: avoid !important;
  }

  .image-viewer {
    background: white !important;
    border: 1px solid #ddd !important;
    padding: 4px !important;
  }

  .viewer-main {
    aspect-ratio: auto !important;
    background: white !important;
    height: auto !important;
  }

  .viewer-main img {
    max-height: 200px !important;
    max-width: 170px !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain !important;
    margin: 0 auto !important;
  }

  /* ---- Item info ---- */
  .item-info {
    gap: 0.3rem !important;
  }

  .item-info .label {
    font-size: 6pt !important;
    letter-spacing: 0.08em !important;
    color: #666 !important;
    margin-bottom: 0 !important;
  }

  .item-title {
    font-size: 14pt !important;
    line-height: 1.2 !important;
    margin-bottom: 0.2rem !important;
  }

  .item-description {
    font-size: 8pt !important;
    color: #333 !important;
    line-height: 1.4 !important;
    margin-bottom: 0.3rem !important;
  }

  /* Quick metadata box */
  .item-info > div[style*="background"] {
    padding: 0.4rem 0.5rem !important;
    background: #f8f8f8 !important;
    border: 1px solid #eee !important;
    margin-top: 0.2rem !important;
    font-size: 8pt !important;
  }

  .item-info > div[style*="background"] .label {
    font-size: 5.5pt !important;
  }

  /* Collections as simple text */
  .item-info > div:has(> div[style*="flex-wrap"]) {
    margin-top: 0.2rem !important;
  }
  .item-info > div:has(> div[style*="flex-wrap"]) a {
    padding: 0.1rem 0.3rem !important;
    font-size: 7pt !important;
    border: 0.5pt solid #bbb !important;
  }

  /* Hide action buttons row */
  .item-info > div:has(.btn) {
    display: none !important;
  }

  /* ---- Metadata Table - Compact Inventory ---- */
  .print-metadata {
    margin-top: 0.5rem !important;
    padding-top: 0.5rem !important;
    border-top: 1px solid #ccc !important;
  }

  .print-metadata h2 {
    font-size: 10pt !important;
    font-family: 'Inter', Arial, sans-serif !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.05em !important;
    margin-bottom: 0.4rem !important;
    padding-bottom: 0.3rem !important;
    border-bottom: 1px solid #000 !important;
  }

  .metadata-table {
    font-size: 8pt !important;
  }

  .metadata-table th,
  .metadata-table td {
    padding: 0.2rem 0.5rem 0.2rem 0 !important;
    border-bottom: 0.5pt solid #e0e0e0 !important;
    vertical-align: top !important;
    line-height: 1.3 !important;
  }

  .metadata-table th {
    width: 100px !important;
    font-size: 7pt !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.04em !important;
    color: #555 !important;
  }

  .metadata-table td {
    font-size: 8pt !important;
    color: #000 !important;
  }

  .metadata-table td a {
    color: #000 !important;
    text-decoration: underline !important;
  }

  .metadata-table td br {
    display: none !important;
  }

  .metadata-table td br + * {
    margin-left: 0.3rem !important;
  }

  /* ---- Footer with URL ---- */
  .item-show::after {
    content: 'Kaynak: ' attr(data-url);
    display: block;
    margin-top: 0.8rem;
    padding-top: 0.5rem;
    border-top: 1px solid #ccc;
    font-size: 7pt;
    color: #888;
  }

  /* Container */
  .container {
    max-width: none !important;
    padding: 0 !important;
  }
}