/* ============================================
   Prof. Rıdvan Coşkun — Sanatçı Portfolio Sitesi
   Minimalist "Hockney" Tasarım Sistemi (Aydınlık & Sade)
   ============================================ */

/* --- Apple System Fonts --- */
:root {
  /* Colors — Hockney Minimalist Palette */
  --color-bg: #f4f5f7;
  /* Very light cool grey */
  --color-bg-alt: #ffffff;
  /* Pure white */
  --color-bg-card: #ffffff;
  --color-surface: #ffffff;
  --color-surface-hover: #f9f9f9;

  --color-text: #1a1a1a;
  --color-text-muted: #555555;
  --color-text-subtle: #888888;

  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-hover: rgba(0, 0, 0, 0.15);
  --color-overlay: rgba(255, 255, 255, 0.95);
  --color-white: #ffffff;
  --color-black: #000000;
  --color-footer-line: #b01a40;
  /* Magenta/Crimson line for footer like Hockney */

  /* Navigation Colors (Hockney Style) */
  --nav-color-1: #0056b3;
  /* Blue */
  --nav-color-2: #0b7041;
  /* Green */
  --nav-color-3: #b31040;
  /* Magenta/Red */
  --nav-color-4: #461f8a;
  /* Purple */

  /* Typography — Apple System Fonts */
  --font-display: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-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: 1400px;
  --header-height: 90px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-xslow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

/* --- Typography --- */
h1,
h2,
h3,
h4,
h5 {
  font-family: var(--font-display);
  font-weight: 300;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 200;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 300;
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.8rem);
  font-weight: 400;
}

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

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

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

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

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

.section-header h2 {
  margin-bottom: var(--space-md);
}

.section-header .section-line {
  display: block;
  width: 60px;
  height: 1px;
  background: var(--color-text);
  margin: var(--space-lg) auto;
  opacity: 0.2;
}

.section-header p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 300;
  letter-spacing: 0.01em;
}

/* --- Header / Navigation --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base);
  border-bottom: 1px solid transparent;
  background-color: rgba(244, 245, 247, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 35px;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text);
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
  margin-right: clamp(3.75rem, 4.8vw, 4.3rem);
}

.site-logo:hover {
  opacity: 0.6;
}

.site-logo span {
  font-weight: 300;
  opacity: 0.8;
}

/* Desktop Nav (Hockney Style Colors) */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.main-nav a {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding: var(--space-xs) 0;
}

.main-nav a:hover {
  opacity: 0.7;
}

/* Assigning specific colors to navigation items iteratively */
.main-nav a:nth-child(4n+1) {
  color: var(--nav-color-1);
}

.main-nav a:nth-child(4n+2) {
  color: var(--nav-color-2);
}

.main-nav a:nth-child(4n+3) {
  color: var(--nav-color-3);
}

.main-nav a:nth-child(4n+4) {
  color: var(--nav-color-4);
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-white);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
}

.mobile-nav.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 300;
  letter-spacing: 0.03em;
  color: var(--color-text);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.mobile-nav a:hover {
  opacity: 0.6;
  transform: translateX(8px);
}

.mobile-nav a:nth-child(4n+1) {
  color: var(--nav-color-1);
}

.mobile-nav a:nth-child(4n+2) {
  color: var(--nav-color-2);
}

.mobile-nav a:nth-child(4n+3) {
  color: var(--nav-color-3);
}

.mobile-nav a:nth-child(4n+4) {
  color: var(--nav-color-4);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-bg);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-xl);
  max-width: 900px;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 200;
  line-height: 1.05;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xl);
  color: var(--color-text);
  text-transform: uppercase;
}

/* Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
  opacity: 0;
  animation: fadeInUp 1s ease 1s forwards;
}

.hero-scroll .scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.3), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* --- Home Stage --- */
.home-stage {
  min-height: calc(100vh - var(--header-height));
  padding-top: calc(var(--header-height) + 1.25rem);
  padding-bottom: var(--space-xl);
  display: flex;
  align-items: center;
}

.home-stage__container {
  max-width: 1470px;
  padding: 0 35px;
}

.home-stage__grid {
  display: grid;
  grid-template-columns: 193px 294px 193px;
  align-items: end;
  justify-content: center;
  column-gap: 54px;
  row-gap: var(--space-2xl);
}

.home-link-card,
.home-featured-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-text);
  text-decoration: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
  outline: none;
  -webkit-tap-highlight-color: transparent;
}

.home-link-card {
  gap: 1.25rem;
}

.home-featured-card {
  gap: 1.65rem;
}

.home-link-card:hover,
.home-featured-card:hover {
  transform: translateY(-4px);
}

.home-link-card:focus,
.home-featured-card:focus,
.home-link-card:focus-visible,
.home-featured-card:focus-visible {
  outline: none;
}

.home-link-card:focus-visible .home-link-card__media,
.home-featured-card:focus-visible .home-featured-card__media {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.home-link-card__media,
.home-featured-card__media {
  overflow: hidden;
  border-radius: 50%;
  border: 4px solid var(--color-bg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
  background: transparent;
}

.home-link-card__media {
  width: 193px;
  height: 193px;
}

.home-featured-card__media {
  width: 294px;
  height: 294px;
}

.home-link-card__media img,
.home-featured-card__media img {
  width: 100%;
  height: 100%;
  display: block;
}

.home-link-card__media--umay img {
  object-fit: contain;
  transform: scale(1.06);
}

.home-link-card__media--vr {
  background: #4b302c;
}

.home-link-card__media--vr img,
.home-featured-card__media img {
  object-fit: cover;
}

.home-featured-card__media img {
  transform: scale(1.13);
  transform-origin: center;
}

.home-link-card__label,
.home-featured-card__title {
  font-family: var(--font-body);
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.5;
  text-align: center;
}

.home-link-card__label {
  text-decoration: none;
}

.home-social {
  margin-top: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.home-social__link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.home-social__link:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 0, 0, 0.16);
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.08);
}

.home-social__icon {
  width: 1.7rem;
  height: 1.7rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid rgba(0, 0, 0, 0.06);
  color: var(--color-text);
  flex-shrink: 0;
}

.home-social__icon svg {
  width: 0.8rem;
  height: 0.8rem;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.home-social__icon svg path {
  fill: currentColor;
  stroke: none;
}

.home-social__label {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

/* --- Page Header (for inner pages) --- */
.page-header {
  padding-top: calc(var(--header-height) + var(--space-4xl));
  padding-bottom: var(--space-3xl);
  text-align: center;
  position: relative;
  background: var(--color-bg);
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
  color: var(--color-text);
  font-weight: 300;
}

.page-header p {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Subcategory Sections (Bitpazarı, vs) --- */
.subcategory-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-4xl);
}

.subcategory-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  text-align: center;
}

.subcategory-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: opacity var(--transition-fast);
}

.subcategory-card:hover img {
  opacity: 0.85;
}

.subcategory-card .cat-overlay {
  padding: var(--space-sm) 0;
}

.subcategory-card .cat-overlay h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 400;
  margin-bottom: 4px;
}

.subcategory-card .cat-overlay span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
}

/* --- Featured Works & Categories (Homepage) --- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.category-card {
  position: relative;
  text-align: center;
}

.category-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  margin-bottom: var(--space-md);
  transition: opacity var(--transition-fast);
}

.category-card:hover img {
  opacity: 0.8;
}

.category-card .cat-overlay h3 {
  font-size: 1.1rem;
  margin-bottom: 4px;
  font-weight: 500;
}

.category-card .cat-overlay span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* Featured Grid */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.featured-item {
  position: relative;
  transition: opacity var(--transition-fast);
}

.featured-item:hover {
  opacity: 0.8;
}

.featured-item:first-child {
  grid-row: span 2;
}

.featured-item img {
  width: 100%;
  height: auto;
  display: block;
  margin-bottom: var(--space-sm);
}

.featured-item .item-overlay h3 {
  font-size: 1rem;
  margin-bottom: 2px;
  font-weight: 500;
}

.featured-item .item-overlay span {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}


/* --- Gallery Grid --- */
.gallery-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
  padding: 0 var(--space-md);
}

.filter-btn {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
  background: transparent;
}

.filter-btn:hover,
.filter-btn.active {
  color: var(--color-text);
  border-bottom: 2px solid var(--color-text);
  padding-bottom: calc(var(--space-sm) - 1px);
}

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

.gallery-item {
  position: relative;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  text-align: center;
}

.gallery-item.visible {
  opacity: 1;
  transform: translateY(0);
}

.gallery-item.hidden {
  display: none;
}

.gallery-item img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  margin-bottom: var(--space-md);
  transition: opacity var(--transition-fast);
}

.gallery-item:hover img {
  opacity: 0.85;
}

.gallery-info h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text);
  line-height: 1.4;
  word-wrap: break-word;
}

.gallery-info p {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  margin-top: 0;
}

/* --- Video Grid --- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--space-xl);
}

.video-item {
  position: relative;
}

.video-thumbnail {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #e0e0e0;
  margin-bottom: var(--space-md);
}

.video-thumbnail video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-thumbnail .play-btn {
  position: absolute;
  bottom: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  z-index: 2;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.video-thumbnail .play-btn svg {
  width: 14px;
  height: 14px;
  fill: var(--color-black);
  margin-left: 3px;
}

.video-item:hover .play-btn {
  transform: scale(1.1);
}

.video-meta h3 {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.video-meta p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- CV / Özgeçmiş --- */
.cv-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-4xl);
  align-items: start;
}

.cv-portrait {
  position: sticky;
  top: calc(var(--header-height) + var(--space-xl));
  text-align: center;
}

.cv-portrait img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter var(--transition-slow);
}

.cv-portrait:hover img {
  filter: grayscale(0%);
}

.cv-portrait .portrait-name {
  font-size: 1.5rem;
  font-weight: 400;
  margin-top: var(--space-md);
  color: var(--color-text);
}

.cv-portrait .portrait-title {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-top: 4px;
}

.cv-layout--bio .portrait-title {
  margin-top: var(--space-md);
}

.cv-content {
  padding-top: 0;
}

.cv-section {
  margin-bottom: var(--space-3xl);
}

.cv-section h3 {
  font-size: 1.2rem;
  font-weight: 500;
  margin-bottom: var(--space-md);
  border-bottom: 2px solid var(--color-text);
  display: inline-block;
  padding-bottom: 4px;
}

.cv-section p,
.cv-section li {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--color-text);
}

.cv-section ul li {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.cv-section ul li:last-child {
  border-bottom: none;
}

.cv-section .cv-year {
  font-size: 0.85rem;
  color: var(--color-text);
  font-weight: 600;
  margin-right: var(--space-md);
  min-width: 55px;
  display: inline-block;
}

/* --- Book / Kitap Section --- */
.book-showcase {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-4xl);
  align-items: center;
}

.book-cover img {
  width: 100%;
  max-width: 400px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  transition: transform var(--transition-base);
}

.book-cover:hover img {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.book-info h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: var(--space-sm);
  color: var(--color-text);
  font-weight: 400;
}

.book-info .book-author {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-lg);
}

.book-info .book-description {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.book-details {
  display: flex;
  gap: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-xl);
}

.book-detail .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 4px;
}

.book-detail .value {
  font-size: 1.1rem;
  color: var(--color-text);
  font-weight: 500;
}

/* --- Publications / Yayınlar --- */
.publications-list {
  max-width: 800px;
  margin: 0 auto;
}

.publication-item {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.publication-item .pub-type {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-sm);
  display: block;
}

.publication-item h3 {
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.publication-item p {
  font-size: 1rem;
  color: var(--color-text);
}

.publications-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: var(--space-3xl);
  align-items: start;
}

.publications-main {
  min-width: 0;
}

.publications-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-xl));
  display: grid;
  gap: var(--space-lg);
}

.publications-sidebar__panel {
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.publications-sidebar__panel h2 {
  font-size: 1.35rem;
  margin-bottom: var(--space-sm);
  font-weight: 500;
}

.publications-sidebar__panel p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.announcement-card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
}

.announcement-card--empty {
  color: var(--color-text-muted);
}

.announcement-card__kind,
.announcement-card__date {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
}

.announcement-card__date {
  margin-top: 4px;
}

.announcement-card h3 {
  font-size: 1.1rem;
  margin: var(--space-sm) 0;
  font-weight: 500;
}

.announcement-card p {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--color-text);
}

.announcement-card__link {
  display: inline-block;
  margin-top: var(--space-md);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
}

.contact-list {
  display: grid;
  gap: var(--space-md);
}

.contact-item {
  display: grid;
  gap: 2px;
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.contact-item:last-child {
  border-bottom: none;
}

.contact-item__label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact-item__link {
  color: var(--color-text);
  text-decoration: none;
}

.contact-item__link:hover {
  color: var(--color-accent);
}

/* --- About Section (Homepage) --- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-text h2 {
  margin-bottom: var(--space-md);
}

.about-text p {
  font-size: 1.05rem;
  color: var(--color-text);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.about-link {
  display: inline-block;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-text);
  padding-bottom: 2px;
  transition: opacity var(--transition-fast);
}

.about-link:hover {
  opacity: 0.6;
}

.about-image img {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter var(--transition-slow);
}

.about-image:hover img {
  filter: grayscale(0%);
}

/* --- Lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(255, 255, 255, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 85vh;
  position: relative;
}

.lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.lightbox-close,
.lightbox-nav {
  color: var(--color-text);
  font-size: 2rem;
  position: absolute;
  cursor: pointer;
  z-index: 2001;
  transition: opacity var(--transition-fast);
}

.lightbox-close {
  top: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-nav {
  top: 50%;
  transform: translateY(-50%);
  padding: var(--space-md);
}

.lightbox-nav:hover,
.lightbox-close:hover {
  opacity: 0.5;
}

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

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

.lightbox-caption {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  z-index: 2001;
  background: rgba(255, 255, 255, 0.9);
  padding: var(--space-sm) var(--space-lg);
  border-radius: 4px;
}

.lightbox-caption h4 {
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 2px;
}

.lightbox-caption p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.video-lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(255, 255, 255, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

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

.video-lightbox video {
  max-width: 90vw;
  max-height: 85vh;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* --- Footer (Hockney Style) --- */
.site-footer {
  margin-top: var(--space-4xl);
  padding: 0 0 var(--space-xl) 0;
  text-align: center;
}

.site-footer .container {
  padding: 0;
}

.footer-line-thick {
  width: 100%;
  height: 12px;
  background-color: var(--color-footer-line);
  margin-bottom: var(--space-md);
}

.footer-copy {
  font-family: var(--font-body);
  font-size: 0.75rem;
  color: var(--nav-color-3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
}

/* --- Global Utilities --- */
.placeholder-img {
  width: 100%;
  height: 100%;
  background: #eaeaea;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-subtle);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes elegantReveal {
  0% {
    opacity: 0;
    transform: translateY(15px);
    letter-spacing: 0.25em;
    filter: blur(4px);
  }

  100% {
    opacity: 1;
    transform: translateY(0);
    letter-spacing: 0.15em;
    filter: blur(0);
  }
}

@keyframes scrollPulse {

  0%,
  100% {
    opacity: 1;
    transform: scaleY(1);
  }

  50% {
    opacity: 0.4;
    transform: scaleY(0.6);
  }
}

.animate-name {
  animation: elegantReveal 2s cubic-bezier(0.2, 0.8, 0.2, 1) 0.3s forwards !important;
  opacity: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {

  .home-stage {
    padding-top: calc(var(--header-height) + var(--space-2xl));
  }

  .home-stage__grid {
    grid-template-columns: 180px 260px 180px;
    column-gap: var(--space-2xl);
  }

  .home-link-card__media {
    width: 180px;
    height: 180px;
  }

  .home-featured-card__media {
    width: 260px;
    height: 260px;
  }

  .featured-grid,
  .categories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .featured-item:first-child {
    grid-row: span 1;
  }

  .cv-layout,
  .about-grid,
  .book-showcase,
  .publications-layout {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .cv-portrait,
  .about-image {
    max-width: 350px;
    margin: 0 auto;
  }

  .publications-sidebar {
    position: static;
  }

  .book-cover {
    display: flex;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --space-xl: 1.5rem;
    --space-4xl: 4rem;
    --space-5xl: 5rem;
    --header-height: 70px;
  }

  .main-nav {
    display: none;
  }

  .home-stage {
    min-height: auto;
    padding-top: calc(var(--header-height) + var(--space-2xl));
  }

  .home-stage__grid {
    grid-template-columns: 1fr;
    justify-items: center;
  }

  .home-featured-card {
    order: -1;
  }

  .home-social {
    margin-top: 3rem;
    gap: 0.6rem;
  }

  .home-social__link {
    width: min(100%, 260px);
    justify-content: center;
  }

  .home-link-card__media {
    width: min(193px, 58vw);
    height: min(193px, 58vw);
  }

  .home-featured-card__media {
    width: min(294px, 72vw);
    height: min(294px, 72vw);
  }

  .home-link-card__label,
  .home-featured-card__title {
    font-size: 1.1rem;
  }

  .hamburger {
    display: flex;
  }

  .mobile-nav {
    display: flex;
  }

  .featured-grid,
  .gallery-grid,
  .categories-grid,
  .subcategory-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }

  .video-grid {
    grid-template-columns: 1fr;
  }

  .page-header {
    padding-top: calc(var(--header-height) + var(--space-2xl));
  }

  .hero-scroll {
    display: none;
  }

  .book-details {
    flex-direction: column;
    gap: var(--space-md);
  }
}

@media (max-width: 480px) {

  .home-stage {
    padding-top: calc(var(--header-height) + var(--space-xl));
  }

  .home-stage__grid {
    row-gap: var(--space-xl);
  }

  .featured-grid,
  .gallery-grid,
  .categories-grid,
  .subcategory-grid {
    grid-template-columns: 1fr;
  }

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

/* Language Switcher */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  margin-right: var(--space-md);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 1px;
}
.lang-switch a {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 0.3s;
}
.lang-switch a:hover {
  color: var(--color-primary);
}
.lang-switch a.active {
  color: var(--color-primary);
  font-weight: 700;
}