@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;600&display=swap');

:root {
  /* Design Tokens */
  --grid-unit: 8px;
  --radius-sm: 0;
  --radius-md: 0;
  --radius-lg: 0;
  
  --transition-fast: 150ms ease-out;
  --transition-normal: 250ms ease-out;
  
  --color-link: #3F52C8;
  --color-link-hover: #5367E2;
  
  --sidebar-width: 23.6%;
  --header-height: 64px;

  /* Fonts */
  --font-main: 'Manrope', sans-serif;
  --base-size: 16px;
  --line-height: 1.35;
}

/* Light Theme Variables */
[data-theme="light"] {
  --color-bg: #ffffff;
  --color-text: #0A0A0A;
  --color-muted: #717171;
  --color-accent: #0A0A0A;
  --color-border: #eeeeee;
  --color-card-bg: #f9f9f9;
  --color-status-sold: #a0a0a0;
  --color-status-available: #0A0A0A;
  --color-bg-rgb: 255, 255, 255;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

/* Dark Theme Variables */
[data-theme="dark"] {
  --color-bg: #0f0f0f;
  --color-text: #f5f5f5;
  --color-muted: #a0a0a0;
  --color-accent: #ffffff;
  --color-border: #2a2a2a;
  --color-card-bg: #1a1a1a;
  --color-status-sold: #717171;
  --color-status-available: #ffffff;
  --color-bg-rgb: 15, 15, 15;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);

  /* Links on dark background */
  --color-link: #808FEC;
  --color-link-hover: #8C9BF7;
}

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

html {
  scroll-behavior: smooth;
  font-size: var(--base-size);
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: var(--line-height);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  opacity: 0.7;
}

/* Content links (non-navigation) */
.main-content a:not(.btn-primary):not(.nav-link):not(.logo) {
  color: var(--color-link);
  opacity: 1;
  transition: color var(--transition-fast);
}

.main-content a:not(.btn-primary):not(.nav-link):not(.logo):hover {
  color: var(--color-link-hover);
  opacity: 1;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 0;
}

/* Layout Structure */
.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  padding: calc(var(--grid-unit) * 8) calc(var(--grid-unit) * 4);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1000;
}

.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: calc(var(--grid-unit) * 8);
  min-height: 100vh;
}

.layout-full .main-content {
  margin-left: 0;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Mobile Header */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  align-items: center;
  justify-content: space-between;
  padding: 0 calc(var(--grid-unit) * 2);
  z-index: 2000;
}

/* Responsive Layout */
@media (max-width: 1024px) {
  .layout {
    flex-direction: column;
  }
  .sidebar {
    display: none;
  }
  .mobile-header {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(var(--color-bg-rgb), 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 4000; /* Higher than overlay */
  }
  .mobile-header .logo {
    font-size: 16px;
    max-width: none;
    margin-bottom: 0;
  }
  .main-content {
    margin-left: 0;
    margin-top: var(--header-height);
    padding: calc(var(--grid-unit) * 4);
  }
}

/* Typography */
h1 {
  font-size: 2.5rem;
  font-weight: 600;
  line-height: 1.1;
  margin-bottom: calc(var(--grid-unit) * 4);
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: calc(var(--grid-unit) * 3);
}

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

/* Sidebar Nav */
.logo {
  font-size: 22px;
  line-height: 1.2; /* 120% */
  letter-spacing: -0.03em; /* -3% */
  font-weight: 600;
  margin-bottom: calc(var(--grid-unit) * 6);
  display: block;
  white-space: pre-wrap;
  max-width: 150px; /* Force break on desktop */
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: calc(var(--grid-unit) * 2);
}

.nav-link {
  font-size: 16px;
  line-height: 1.35;
  letter-spacing: 0;
  font-weight: 400;
  color: var(--color-muted);
  transition: color var(--transition-fast);
}

.nav-link.active {
  font-weight: 600;
  color: var(--color-text);
}

.sidebar-footer {
  margin-top: auto;
}

.controls {
  display: flex;
  align-items: center;
  gap: calc(var(--grid-unit) * 2);
  margin-bottom: calc(var(--grid-unit) * 4);
}

.btn-icon, .theme-toggle {
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.btn-icon img, .theme-toggle img {
  width: 24px;
  height: 24px;
}

/* Burger Button */
.burger-btn {
  width: 24px;
  height: 24px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 6px;
  padding: 0;
}

.burger-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  transition: transform 0.3s ease, opacity 0.3s ease, width 0.3s ease;
  border-radius: 2px;
}

.burger-btn.open span:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.burger-btn.open span:nth-child(2) {
  transform: translateY(-4px) rotate(-45deg);
}

.lang-switch {
  font-size: 14px;
  line-height: 1.35;
  letter-spacing: 0;
  font-weight: 400;
  color: var(--color-muted);
  cursor: pointer;
  display: flex;
  gap: 8px;
}

.lang-switch strong, .lang-switch b {
  font-weight: 600;
  color: var(--color-text);
}

/* Gallery - Masonry Grid */
.masonry-grid {
  column-gap: calc(var(--grid-unit) * 4);
  width: 100%;
}

@media (min-width: 1025px) {
  .masonry-grid {
    column-count: 3;
  }
}

@media (max-width: 1024px) {
  .masonry-grid {
    column-count: 2;
  }
}

@media (max-width: 480px) {
  .masonry-grid {
    column-count: 1; /* Keeping 2 columns as requested "2 columns on mobile/tablet" but 1 on very small if needed. Wait, user said 2 columns on mobile and tablet. */
  }
}

/* Overriding mobile column count to 2 as per request */
@media (max-width: 1024px) {
  .masonry-grid {
    column-count: 2;
  }
}

.work-card {
  display: inline-block;
  width: 100%;
  break-inside: avoid-column;
  margin-bottom: calc(var(--grid-unit) * 4);
  cursor: pointer;
}

.work-image-wrapper {
  width: 100%;
  overflow: hidden;
  display: block;
}

.work-image-wrapper img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease, opacity 0.3s ease;
  display: block;
}

.work-card:hover .work-image-wrapper img {
  transform: scale(1.05);
  opacity: 0.9;
}

.work-info {
  padding-top: calc(var(--grid-unit) * 1.5);
}

.work-title {
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin-bottom: 4px;
}

.work-meta {
  font-size: 14px;
  line-height: 1.2;
  letter-spacing: 0;
  font-weight: 400;
  color: var(--color-muted);
}

.badge-sold {
  display: inline-block;
  padding: 2px 8px;
  background: var(--color-border);
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 4px;
}

/* Work Detail */
.work-detail-container {
  max-width: 1200px;
  margin: 0 auto;
}

.work-detail-grid {
  display: grid;
  grid-template-columns: 1.618fr 1fr; /* Golden Ratio-ish */
  gap: calc(var(--grid-unit) * 8);
}

@media (max-width: 1024px) {
  .work-detail-grid {
    grid-template-columns: 1fr;
  }
}

.work-image img {
  width: 100%;
  cursor: zoom-in;
}

/* Work Detail */
.work-detail-container {
  max-width: 1200px;
  margin: 0 auto;
}

.work-detail-grid {
  display: grid;
  grid-template-columns: 1.618fr 1fr;
  gap: calc(var(--grid-unit) * 8);
}

@media (max-width: 1024px) {
  .work-detail-grid {
    grid-template-columns: 1fr;
  }
}

.work-image img {
  width: 100%;
  cursor: zoom-in;
}

.work-sidebar-info {
  display: flex;
  flex-direction: column;
}

.back-link {
  font-size: 14px;
  color: var(--color-link);
  margin-bottom: 40px;
  display: inline-block;
  text-decoration: none;
}

.back-link:hover {
  text-decoration: underline;
}

.work-detail-title {
  font-size: 24px;
  line-height: 1.1;
  font-weight: 600;
  margin-bottom: 16px;
}

.work-detail-meta {
  font-size: 14px;
  line-height: 1.35;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 40px;
}

.work-detail-price {
  font-size: 18px;
  line-height: 1.2;
  font-weight: 600;
  margin-bottom: 16px;
}

.work-contact {
  font-size: 14px;
  line-height: 1.35;
  font-weight: 400;
  margin-bottom: 40px;
}

.work-contact div {
  margin-bottom: 16px;
}

.work-contact a {
  display: block;
  text-decoration: none;
}

.work-contact a:hover {
  text-decoration: underline;
}

.work-nav {
  display: flex;
  gap: 8px;
}

.btn-nav {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  cursor: pointer;
  background: none;
  transition: border-color var(--transition-fast);
}

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

.btn-nav img {
  width: 24px;
  height: 24px;
}

@media (max-width: 1024px) {
  .work-nav {
    position: fixed;
    bottom: calc(16px + env(safe-area-inset-bottom));
    left: 16px;
    right: 16px;
    justify-content: space-between;
    z-index: 2000;
  }

  .btn-nav {
    background: rgba(var(--color-bg-rgb), 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--color-border);
    width: 48px; /* Slightly larger for mobile */
    height: 48px;
  }
}

[data-theme="dark"] .btn-nav img {
  filter: invert(1);
}
/* Lightbox */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(var(--color-bg-rgb), 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: none;
  z-index: 5000;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lightbox.active {
  display: flex;
}

.lightbox-controls {
  position: absolute;
  top: 24px;
  right: 24px;
  display: flex;
  gap: 16px;
  z-index: 5100;
}

.lightbox-btn {
  background: rgba(var(--color-bg-rgb), 0.1);
  border: 1px solid var(--color-border);
  cursor: pointer;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0;
  transition: all var(--transition-fast);
}

.lightbox-btn:hover {
  background: var(--color-bg);
  border-color: var(--color-text);
}

.lightbox-btn img {
  width: 24px;
  height: 24px;
}

[data-theme="dark"] .lightbox-btn img {
  filter: invert(1);
}

.lightbox-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.lightbox-img {
  max-width: 95%;
  max-height: 95%;
  object-fit: contain;
  cursor: zoom-in;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  user-select: none;
  -webkit-user-drag: none;
  will-change: transform;
}

.lightbox.zoomed .lightbox-img {
  max-width: none;
  max-height: none;
  cursor: grab;
}

.lightbox.zoomed .lightbox-img:active {
  cursor: grabbing;
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  z-index: 3000;
  display: none;
  flex-direction: column;
}

.mobile-nav-overlay.active {
  display: flex;
}

.mobile-nav-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-bottom: calc(24px + env(safe-area-inset-bottom));
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 24px;
}

.mobile-nav-list li {
  width: 100%;
  text-align: center;
  padding: 14px 0;
}

.mobile-nav-list a {
  font-size: 16px;
  font-weight: 400;
  color: var(--color-muted);
}

.mobile-nav-list a.active {
  font-weight: 600;
  color: var(--color-text);
}

.mobile-controls {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.mobile-controls .lang-switch {
  font-size: 14px;
  gap: 0;
}

.mobile-controls .lang-switch span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-width: 48px;
}

.theme-toggle-mobile {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-width: 48px;
}

.theme-toggle-mobile img {
  width: 24px;
  height: 24px;
}

/* About Page Specific */
.about-content, .statement-content, .contact-content {
  display: flex;
  flex-direction: column;
  max-width: 640px;
}

.about-content {
  gap: 0;
}

.artist-photo {
  max-width: 400px;
  height: auto;
  margin-bottom: 40px; /* Space to bio */
}

.manifesto {
  font-size: 16px;
  line-height: 1.35;
  font-weight: 400;
  margin-bottom: 40px; /* Space before exhibitions */
}

.about-content h2 {
  font-size: 24px;
  line-height: 1.0;
  font-weight: 600;
  text-transform: none;
  margin-bottom: 24px; /* Space before list */
}

.about-content [data-i18n="about_exhibitions_list"] {
  font-size: 16px;
  line-height: 1.35;
  font-weight: 400;
}

/* Statement Page Specific */
.statement-content h1 {
  font-size: 32px;
  line-height: 1.0;
  font-weight: 600;
  margin-bottom: 24px;
}

.statement-content p {
  font-size: 16px;
  line-height: 1.35;
  font-weight: 400;
  margin-bottom: 40px;
}

.statement-content p:last-child {
  margin-bottom: 0;
}

/* Contact Page Specific */
.contact-content {
  gap: 32px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0;
  font-size: 16px;
  line-height: 1.35;
}

.contact-item .caption {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  min-width: 0;
  display: block;
}

.contact-item a, .contact-item span:not(.caption) {
  font-weight: 400;
  color: inherit;
  text-decoration: none;
  display: block;
}

.contact-item a:hover {
  text-decoration: underline;
}

/* 404 Page */
.page-404 {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  text-align: center;
  padding: 40px;
}

.error-image {
  max-width: 320px;
  width: 100%;
  height: auto;
  margin-bottom: 24px;
}

[data-theme="light"] .dark-only { display: none; }
[data-theme="dark"] .light-only { display: none; }

.page-404 p {
  font-size: 16px;
  line-height: 1.35;
  margin-bottom: 24px;
  color: var(--color-text);
  max-width: 400px;
}

.btn-primary {
  display: inline-block;
  background: var(--color-bg);
  border: 1px solid var(--color-text);
  color: var(--color-text);
  padding: 8px 16px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-text);
  color: var(--color-bg);
  opacity: 1 !important; /* Override global link hover opacity */
}

/* Misc */
.skeleton {
  background: var(--color-border);
  aspect-ratio: 3/4;
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}