/* ============================================================
   TSAI BAILLIE GALLERY - STYLES
   Warm watercolor theme with dark mode support
   ============================================================ */

/* ---- CSS Custom Properties (Light Mode) ---- */
:root {
  --color-bg: #FAF6F1;
  --color-surface: #FDF9F5;
  --color-surface-raised: #FFFFFF;
  --color-warm-brown: #8B7355;
  --color-warm-brown-light: #A99076;
  --color-warm-brown-dark: #6B5344;
  --color-cream: #F5E6D3;
  --color-beige: #E8DCC8;
  --color-text-primary: #3D3229;
  --color-text-secondary: #6B5D4D;
  --color-text-hint: #9A8B7A;
  --color-available: #7CAF7C;
  --color-sold: #CF8B8B;
  --color-on-order: #D4A574;
  --color-error: #B07070;
  --color-whatsapp: #25D366;
  --color-instagram: #E4405F;
  --color-facebook: #1877F2;
  --color-border: #E8DCC8;
  --color-overlay: rgba(61, 50, 41, 0.5);
  --color-shadow: rgba(139, 115, 85, 0.08);
  --color-shadow-md: rgba(139, 115, 85, 0.12);

  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Inter', 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-zh: 'Noto Sans TC', 'Microsoft JhengHei', sans-serif;

  --header-height: 64px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;

  --container-max: 1200px;
  --container-padding: 20px;
}

/* ---- Dark Mode ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg: #1A1614;
    --color-surface: #231F1C;
    --color-surface-raised: #2C2723;
    --color-warm-brown: #A99076;
    --color-warm-brown-light: #C4AB91;
    --color-warm-brown-dark: #8B7355;
    --color-cream: #2C2723;
    --color-beige: #352F2A;
    --color-text-primary: #EDE6DC;
    --color-text-secondary: #B5A898;
    --color-text-hint: #7A6E60;
    --color-border: #3D3631;
    --color-overlay: rgba(0, 0, 0, 0.65);
    --color-shadow: rgba(0, 0, 0, 0.2);
    --color-shadow-md: rgba(0, 0, 0, 0.3);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.zh {
  font-family: var(--font-zh);
}

body.no-scroll {
  overflow: hidden;
}

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

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

a:hover {
  color: var(--color-warm-brown-dark);
}

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

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text-primary);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--color-warm-brown);
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.15);
}

::placeholder {
  color: var(--color-text-hint);
}

.hidden {
  display: none !important;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.zh .section-title {
  font-family: var(--font-zh);
  font-weight: 700;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin: 0 auto;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-warm-brown);
  color: #FFF;
}

.btn-primary:hover {
  background: var(--color-warm-brown-dark);
  color: #FFF;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--color-shadow-md);
}

.btn-outline {
  border: 1.5px solid var(--color-warm-brown);
  color: var(--color-warm-brown);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-warm-brown);
  color: #FFF;
}

.btn-whatsapp {
  background: var(--color-whatsapp);
  color: #FFF;
}

.btn-whatsapp:hover {
  background: #1EBE56;
  color: #FFF;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.875rem;
}

/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: box-shadow var(--transition-normal);
  height: var(--header-height);
}

.header.scrolled {
  box-shadow: 0 2px 16px var(--color-shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-text-primary);
}

.logo:hover {
  color: var(--color-text-primary);
}

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--color-warm-brown);
  color: #FFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

.logo-img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  object-fit: contain;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}

.logo-subtitle {
  font-size: 0.7rem;
  color: var(--color-text-hint);
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 6px 14px;
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-primary);
  background: var(--color-cream);
}

.nav-link.active {
  color: var(--color-warm-brown-dark);
  background: var(--color-cream);
  font-weight: 600;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.lang-toggle {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.lang-toggle:hover {
  border-color: var(--color-warm-brown);
  color: var(--color-warm-brown);
}

.cart-btn {
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.cart-btn:hover {
  background: var(--color-cream);
  color: var(--color-warm-brown);
}

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-warm-brown);
  color: #FFF;
  font-size: 0.65rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.cart-count.empty {
  transform: scale(0);
}

.cart-count.bump {
  animation: cartBump 300ms ease;
}

@keyframes cartBump {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* Mobile Menu Button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 1px;
  transition: all var(--transition-fast);
}

.mobile-menu-btn.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.open .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-overlay);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.mobile-nav {
  background: var(--color-surface);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-bottom: 1px solid var(--color-border);
  transform: translateY(-10px);
  opacity: 0;
  transition: all var(--transition-normal);
}

.mobile-nav-overlay.open .mobile-nav {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav-link {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text-primary);
  transition: background var(--transition-fast);
}

.mobile-nav-link:hover {
  background: var(--color-cream);
  color: var(--color-text-primary);
}

/* ============================================================
   GALLERY SECTION
   ============================================================ */
.gallery-section {
  padding-top: calc(var(--header-height) + 40px);
}

.gallery-controls {
  margin-bottom: 32px;
}

/* Search Box */
.search-box {
  position: relative;
  margin-bottom: 16px;
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-hint);
  pointer-events: none;
}

.search-input {
  padding-left: 42px;
  padding-right: 40px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  font-size: 0.95rem;
}

.search-clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--color-text-hint);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.search-clear.visible {
  opacity: 1;
  visibility: visible;
}

.search-clear:hover {
  background: var(--color-beige);
  color: var(--color-text-primary);
}

/* Filter Row */
.filter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.filter-chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chip {
  padding: 6px 16px;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.chip:hover {
  border-color: var(--color-warm-brown-light);
  color: var(--color-warm-brown);
}

.chip.active {
  background: var(--color-warm-brown);
  border-color: var(--color-warm-brown);
  color: #FFF;
}

.category-select {
  width: auto;
  min-width: 160px;
  height: 38px;
  padding: 0 32px 0 12px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239A8B7A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  cursor: pointer;
}

/* Artworks Grid */
.artworks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

/* Artwork Card */
.artwork-card {
  background: var(--color-surface-raised);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 1px solid var(--color-border);
}

.artwork-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px var(--color-shadow-md);
}

.artwork-card-img-wrap {
  position: relative;
  width: 100%;
  padding-top: 100%;
  overflow: hidden;
  background: var(--color-cream);
}

.artwork-card-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.artwork-card:hover .artwork-card-img {
  transform: scale(1.05);
}

.artwork-card-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.badge-available {
  background: rgba(124, 175, 124, 0.9);
  color: #FFF;
}

.badge-sold {
  background: rgba(207, 139, 139, 0.9);
  color: #FFF;
}

.badge-on_order {
  background: rgba(212, 165, 116, 0.9);
  color: #FFF;
}

.artwork-card-info {
  padding: 14px 16px;
}

.artwork-card-title {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text-primary);
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.zh .artwork-card-title {
  font-family: var(--font-zh);
  font-weight: 700;
}

.artwork-card-technique {
  font-size: 0.8rem;
  color: var(--color-text-hint);
  margin-bottom: 6px;
}

.artwork-card-price {
  font-weight: 600;
  color: var(--color-warm-brown);
  font-size: 0.95rem;
}

/* Skeleton Cards */
.skeleton-card {
  background: var(--color-surface-raised);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.skeleton-img {
  width: 100%;
  padding-top: 100%;
  background: linear-gradient(110deg, var(--color-cream) 8%, var(--color-beige) 18%, var(--color-cream) 33%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
}

.skeleton-text {
  height: 14px;
  margin: 14px 16px 0;
  border-radius: 4px;
  background: linear-gradient(110deg, var(--color-cream) 8%, var(--color-beige) 18%, var(--color-cream) 33%);
  background-size: 200% 100%;
  animation: shimmer 1.5s linear infinite;
}

.skeleton-text.short {
  width: 60%;
  margin-bottom: 14px;
  margin-top: 8px;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  color: var(--color-text-hint);
  margin-bottom: 16px;
}

.empty-text {
  color: var(--color-text-hint);
  font-size: 1.05rem;
}

/* ============================================================
   ABOUT SECTION
   ============================================================ */
.about-section {
  background: var(--color-surface);
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.about-image-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: var(--color-cream);
}

.about-skeleton {
  height: 100%;
  padding-top: 0;
}

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-name {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-primary);
}

.zh .about-name {
  font-family: var(--font-zh);
  font-weight: 700;
}

.about-bio {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
  white-space: pre-line;
}

.about-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-secondary);
}

.social-link:hover {
  transform: translateY(-2px);
}

.social-link.instagram:hover {
  color: var(--color-instagram);
  border-color: var(--color-instagram);
}

.social-link.facebook:hover {
  color: var(--color-facebook);
  border-color: var(--color-facebook);
}

.social-link.email-link:hover {
  color: var(--color-warm-brown);
  border-color: var(--color-warm-brown);
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  text-decoration: none;
  color: var(--color-text-primary);
}

.contact-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--color-shadow);
  color: var(--color-text-primary);
}

.contact-card strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.contact-card span {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.whatsapp-card:hover {
  border-color: var(--color-whatsapp);
}

.whatsapp-card svg {
  color: var(--color-whatsapp);
  flex-shrink: 0;
}

.email-card:hover {
  border-color: var(--color-warm-brown);
}

.email-card svg {
  color: var(--color-warm-brown);
  flex-shrink: 0;
}

.contact-social-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.social-card {
  flex-direction: column;
  text-align: center;
  padding: 20px 16px;
}

.instagram-card:hover {
  border-color: var(--color-instagram);
}

.instagram-card svg {
  color: var(--color-instagram);
}

.facebook-card:hover {
  border-color: var(--color-facebook);
}

.facebook-card svg {
  color: var(--color-facebook);
}

/* Contact Form */
.contact-form {
  background: var(--color-surface-raised);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-border);
}

.form-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--color-text-primary);
}

.zh .form-title {
  font-family: var(--font-zh);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
}

.form-submit {
  width: 100%;
  margin-top: 8px;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px;
  margin-top: 16px;
  border-radius: var(--radius-sm);
  background: rgba(124, 175, 124, 0.1);
  color: var(--color-available);
  font-size: 0.9rem;
}

/* ============================================================
   DOWNLOAD SECTION
   ============================================================ */
.download-section {
  background: var(--color-surface);
}

.download-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.download-text {
  max-width: 500px;
}

.download-text .section-title {
  text-align: left;
}

.download-text .section-desc {
  text-align: left;
  margin: 0 0 24px;
}

.download-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.download-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.download-feature svg {
  color: var(--color-available);
  flex-shrink: 0;
}

.download-btn {
  font-size: 1rem;
  padding: 14px 28px;
}

/* Phone Mockup */
.download-mockup {
  display: flex;
  justify-content: center;
}

.phone-frame {
  width: 240px;
  height: 480px;
  border-radius: 32px;
  background: var(--color-text-primary);
  padding: 12px;
  box-shadow: 0 24px 48px var(--color-shadow-md);
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 22px;
  background: var(--color-bg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-header-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.phone-logo {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: var(--color-warm-brown);
  color: #FFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.55rem;
  font-family: var(--font-serif);
  font-weight: 700;
}

.phone-gallery-mock {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  padding: 8px;
  flex: 1;
}

.phone-card {
  background: var(--color-cream);
  border-radius: 8px;
  animation: shimmer 2s linear infinite;
  background: linear-gradient(110deg, var(--color-cream) 8%, var(--color-beige) 18%, var(--color-cream) 33%);
  background-size: 200% 100%;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 48px 0 24px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}

.footer-brand .logo {
  justify-content: center;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--color-text-hint);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
}

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

.footer-social {
  display: flex;
  gap: 16px;
}

.footer-social a {
  color: var(--color-text-hint);
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-warm-brown);
}

.footer-copy {
  color: var(--color-text-hint);
  font-size: 0.8rem;
}

/* ============================================================
   ARTWORK DETAIL MODAL
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2000;
  background: var(--color-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.modal-content {
  background: var(--color-surface-raised);
  border-radius: var(--radius-xl);
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.97);
  transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-content {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-surface);
  color: var(--color-text-primary);
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all var(--transition-fast);
  border: 1px solid var(--color-border);
}

.modal-close:hover {
  background: var(--color-beige);
}

.modal-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.modal-image-wrap {
  position: relative;
  background: var(--color-cream);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  max-height: 80vh;
}

.modal-status-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.modal-details {
  padding: 32px;
  display: flex;
  flex-direction: column;
}

.modal-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 600;
  margin-bottom: 20px;
  line-height: 1.3;
}

.zh .modal-title {
  font-family: var(--font-zh);
  font-weight: 700;
}

.modal-meta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.meta-label {
  font-size: 0.85rem;
  color: var(--color-text-hint);
}

.meta-value {
  font-size: 0.9rem;
  color: var(--color-text-primary);
  font-weight: 500;
  text-align: right;
}

.modal-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-warm-brown);
  margin-bottom: 16px;
}

.modal-description {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
  white-space: pre-line;
}

.modal-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.modal-actions .btn {
  flex: 1;
  min-width: 140px;
}

/* ============================================================
   CART DRAWER
   ============================================================ */
.cart-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2500;
  background: var(--color-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

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

.cart-drawer {
  position: absolute;
  top: 0;
  right: 0;
  width: 420px;
  max-width: 100%;
  height: 100%;
  background: var(--color-surface-raised);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-normal);
}

.cart-overlay.open .cart-drawer {
  transform: translateX(0);
}

.cart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.cart-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
}

.zh .cart-title {
  font-family: var(--font-zh);
}

.cart-close {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--color-text-hint);
  transition: all var(--transition-fast);
}

.cart-close:hover {
  background: var(--color-beige);
  color: var(--color-text-primary);
}

.cart-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
}

.cart-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--color-text-hint);
  text-align: center;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cart-item {
  display: flex;
  gap: 14px;
  padding: 12px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.cart-item-img {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-cream);
}

.cart-item-info {
  flex: 1;
  min-width: 0;
}

.cart-item-title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
  line-height: 1.3;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cart-item-price {
  color: var(--color-warm-brown);
  font-weight: 600;
  font-size: 0.9rem;
}

.cart-item-remove {
  align-self: flex-start;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-hint);
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.cart-item-remove:hover {
  background: rgba(176, 112, 112, 0.1);
  color: var(--color-error);
}

.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--color-border);
  flex-shrink: 0;
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-size: 1.1rem;
  font-weight: 600;
}

.cart-total-amount {
  color: var(--color-warm-brown);
  font-size: 1.2rem;
}

.cart-checkout-btn {
  width: 100%;
}

/* ============================================================
   CHECKOUT MODAL
   ============================================================ */
.checkout-content {
  max-width: 560px;
}

.checkout-body {
  padding: 32px;
}

.checkout-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 24px;
  text-align: center;
}

.zh .checkout-title {
  font-family: var(--font-zh);
}

.checkout-form h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--color-text-secondary);
}

.checkout-summary {
  margin-top: 20px;
  padding: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.checkout-summary-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.checkout-summary-row.total {
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
  padding-top: 12px;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-text-primary);
}

.checkout-summary-row.total .summary-value {
  color: var(--color-warm-brown);
}

.checkout-submit {
  width: 100%;
  margin-top: 20px;
  padding: 14px;
  font-size: 1rem;
}

.checkout-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-hint);
  margin-top: 12px;
  line-height: 1.5;
}

.checkout-success {
  text-align: center;
  padding: 40px 20px;
}

.checkout-success svg {
  margin-bottom: 20px;
}

.checkout-success h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.checkout-success p {
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  line-height: 1.6;
}

.order-id {
  font-family: monospace;
  font-size: 0.85rem;
  color: var(--color-text-hint);
  margin-bottom: 24px !important;
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--color-surface-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  font-size: 0.9rem;
  box-shadow: 0 8px 24px var(--color-shadow-md);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  max-width: 360px;
  animation: toastIn 300ms ease forwards;
}

.toast.removing {
  animation: toastOut 300ms ease forwards;
}

.toast-success {
  border-left: 3px solid var(--color-available);
}

.toast-error {
  border-left: 3px solid var(--color-error);
}

.toast-info {
  border-left: 3px solid var(--color-warm-brown);
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toastOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet */
@media (max-width: 900px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-image-wrap {
    max-width: 360px;
    margin: 0 auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .download-content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }

  .download-text {
    max-width: 100%;
  }

  .download-text .section-title,
  .download-text .section-desc {
    text-align: center;
  }

  .download-features {
    align-items: center;
  }

  .modal-body {
    grid-template-columns: 1fr;
  }

  .modal-image-wrap {
    max-height: 50vh;
  }
}

/* Mobile */
@media (max-width: 640px) {
  :root {
    --header-height: 56px;
    --container-padding: 16px;
  }

  .nav {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .gallery-section {
    padding-top: calc(var(--header-height) + 24px);
  }

  .artworks-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
  }

  .artwork-card-info {
    padding: 10px 12px;
  }

  .artwork-card-title {
    font-size: 0.9rem;
  }

  .artwork-card-price {
    font-size: 0.85rem;
  }

  .artwork-card-badge {
    font-size: 0.6rem;
    padding: 2px 7px;
  }

  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-chips {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 4px;
    -webkit-overflow-scrolling: touch;
  }

  .category-select {
    width: 100%;
  }

  .contact-social-row {
    grid-template-columns: 1fr 1fr;
  }

  .contact-form {
    padding: 24px 20px;
  }

  .modal-content {
    border-radius: var(--radius-lg);
    margin: 10px;
  }

  .modal-details {
    padding: 20px;
  }

  .modal-title {
    font-size: 1.3rem;
  }

  .modal-price {
    font-size: 1.25rem;
  }

  .modal-actions {
    flex-direction: column;
  }

  .modal-actions .btn {
    min-width: unset;
  }

  .cart-drawer {
    width: 100%;
  }

  .checkout-body {
    padding: 24px 20px;
  }

  .toast-container {
    left: 16px;
    right: 16px;
    bottom: 16px;
  }

  .toast {
    min-width: unset;
    max-width: unset;
    width: 100%;
  }

  .phone-frame {
    width: 200px;
    height: 400px;
  }

  .download-btn {
    width: 100%;
  }
}

/* Large Desktop */
@media (min-width: 1400px) {
  :root {
    --container-max: 1320px;
  }

  .artworks-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  }
}

/* Print */
@media print {
  .header, .cart-btn, .lang-toggle, .mobile-menu-btn,
  .modal-overlay, .cart-overlay, .toast-container,
  .download-section, .contact-form {
    display: none !important;
  }

  body {
    background: #FFF;
    color: #000;
  }

  .section {
    padding: 20px 0;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}