/* =============================================
   GALLEREO - Social Gallery Styles
   Dark/Gold Luxury Theme
   ============================================= */

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

:root {
  --black: #0a0a0a;
  --charcoal: #1a1a1a;
  --warm-gray: #2a2a28;
  --surface: #161614;
  --cream: #f5f0eb;
  --warm-white: #faf8f5;
  --gold: #c9a84c;
  --gold-light: #d4b968;
  --gold-hover: #b8953a;
  --gold-dim: rgba(201, 168, 76, 0.15);
  --text-light: #e8e4df;
  --text-muted: #9a958e;
  --text-secondary: #7a756e;
  --border: rgba(201, 168, 76, 0.1);
  --border-strong: rgba(201, 168, 76, 0.2);
  --glass: rgba(10, 10, 10, 0.85);
  --white: #ffffff;
  --success: #4ade80;
  --error: #ef4444;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
  --radius: 6px;
  --radius-lg: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--black);
  color: var(--text-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4 { font-family: 'DM Sans', sans-serif; font-weight: 700; }
a { color: var(--gold); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--gold-light); }
img { max-width: 100%; }

/* --- Navigation --- */
.main-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: 1.25rem 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Playfair Display', serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: var(--cream);
  text-decoration: none;
}

.logo span { color: var(--gold); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.88rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius);
  transition: all 0.2s;
  letter-spacing: 0.02em;
}

.nav-link:hover {
  color: var(--text-light);
  background: rgba(255,255,255,0.05);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.25s;
  text-decoration: none;
  line-height: 1;
  letter-spacing: 0.02em;
}

.btn-primary {
  background: var(--cream);
  color: var(--black);
}
.btn-primary:hover {
  background: var(--warm-white);
  color: var(--black);
  transform: translateY(-1px);
}

.btn-accent, .btn-gold {
  background: var(--gold);
  color: var(--black);
}
.btn-accent:hover, .btn-gold:hover {
  background: var(--gold-light);
  color: var(--black);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-light);
  border: 1.5px solid var(--border-strong);
}
.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-small {
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  background: var(--gold);
  color: var(--black);
  border-radius: var(--radius);
  font-weight: 600;
  font-family: 'DM Sans', sans-serif;
  text-decoration: none;
}
.btn-small:hover {
  background: var(--gold-light);
  color: var(--black);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem;
}
.btn-ghost:hover { color: var(--text-light); }

.btn-lg {
  padding: 0.9rem 2.2rem;
  font-size: 1rem;
}

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

/* --- Container --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.page {
  padding-top: 5rem;
  min-height: 100vh;
}

/* --- Forms --- */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text-light);
  background: var(--surface);
  border: 1.5px solid var(--border-strong);
  border-radius: var(--radius);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--text-secondary);
}

.form-select {
  appearance: none;
  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='%239a958e' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-select option {
  background: var(--charcoal);
  color: var(--text-light);
}

.form-textarea {
  min-height: 100px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
}

/* --- Cards --- */
.card {
  background: var(--charcoal);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

/* --- Gallery Grid (Masonry) --- */
.gallery-grid {
  columns: 3 300px;
  column-gap: 1.25rem;
  padding: 2rem 0;
}

.artwork-card {
  break-inside: avoid;
  margin-bottom: 1.25rem;
  background: var(--charcoal);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--border);
}

.artwork-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.5);
  border-color: var(--border-strong);
}

.artwork-card-image {
  width: 100%;
  display: block;
  background: var(--warm-gray);
}

.artwork-card-body {
  padding: 1rem 1.25rem;
}

.artwork-card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
  color: var(--text-light);
}

.artwork-card-artist {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.artwork-card-artist-name {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.artwork-card-medium {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.artwork-card-price {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gold);
}

/* --- Artwork Detail --- */
.artwork-detail {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 3rem;
  padding: 2rem 0 4rem;
}

.artwork-detail-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.artwork-detail-info {
  padding-top: 1rem;
}

.artwork-detail-title {
  font-size: 2rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--cream);
}

.artwork-detail-artist-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.artwork-detail-artist-info a {
  font-weight: 600;
  color: var(--text-light);
}
.artwork-detail-artist-info a:hover { color: var(--gold); }

.artwork-detail-artist-info .location {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.detail-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.detail-value {
  font-size: 1rem;
  margin-bottom: 1.25rem;
  color: var(--text-light);
}

.detail-price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gold);
  margin-bottom: 0.25rem;
}

.detail-price-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.artwork-description {
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.sold-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
}

/* --- Profile / Artist --- */
.profile-header {
  text-align: center;
  padding: 4rem 2rem 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}

.profile-avatar-wrap {
  margin-bottom: 1.5rem;
}

.profile-name {
  font-size: 2rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--cream);
}

.profile-location {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.profile-bio {
  max-width: 550px;
  margin: 0 auto;
  line-height: 1.7;
  color: var(--text-muted);
}

.profile-stats {
  display: flex;
  justify-content: center;
  gap: 3rem;
  margin-top: 2rem;
}

.profile-stat-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
}

.profile-stat-label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* --- Avatar --- */
.avatar {
  border-radius: 50%;
  object-fit: cover;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.avatar-initials {
  background: var(--gold);
  color: var(--black);
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
}

/* --- Filter Bar --- */
.filter-bar {
  display: flex;
  gap: 0.5rem;
  padding: 1.5rem 0;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.5rem;
}

.filter-btn {
  padding: 0.4rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: 1.5px solid transparent;
  border-radius: 100px;
  cursor: pointer;
  transition: all 0.2s;
}

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

.filter-btn.active {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--gold-dim);
}

/* --- Upload / Dropzone --- */
.upload-area {
  max-width: 700px;
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.upload-title {
  font-size: 1.8rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--cream);
}

.upload-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--surface);
  margin-bottom: 2rem;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--gold);
  background: rgba(201, 168, 76, 0.05);
}

.dropzone-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  opacity: 0.4;
  color: var(--text-muted);
}

.dropzone p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.dropzone .browse-link {
  color: var(--gold);
  font-weight: 600;
  cursor: pointer;
}

.upload-preview {
  width: 100%;
  max-height: 400px;
  object-fit: contain;
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

/* --- Auth Pages --- */
.auth-container {
  max-width: 420px;
  margin: 0 auto;
  padding: 4rem 0;
}

.auth-title {
  font-size: 1.8rem;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--cream);
}

.auth-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.auth-divider {
  text-align: center;
  margin: 1.5rem 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.auth-link {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 2rem;
}

.modal {
  background: var(--charcoal);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  position: relative;
  border: 1px solid var(--border);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-muted);
  line-height: 1;
}
.modal-close:hover { color: var(--text-light); }

.modal-title {
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--cream);
}

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  padding: 0.85rem 1.5rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  z-index: 300;
  animation: toastIn 0.3s ease;
  box-shadow: var(--shadow-lg);
}

.toast-success { background: var(--success); color: var(--black); }
.toast-error { background: var(--error); color: var(--white); }

@keyframes toastIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.3;
}

.empty-state h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text-light);
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Page Header --- */
.page-header {
  padding: 2rem 0 0;
}

.page-header h1 {
  font-size: 2rem;
  letter-spacing: -0.03em;
  color: var(--cream);
}

.page-header p {
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* --- Section --- */
.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
}

/* --- LANDING PAGE --- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 3rem 4rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 70vw;
  height: 70vw;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 168, 76, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.hero-content {
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 2rem;
  font-weight: 600;
}

.hero h1 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--cream);
}

.hero h1 em {
  font-style: italic;
  color: var(--gold);
}

.hero-sub {
  font-size: 1.2rem;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 550px;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat { display: flex; flex-direction: column; }

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--cream);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 0.25rem;
}

/* Manifesto */
.manifesto {
  padding: 8rem 3rem;
  background: var(--charcoal);
  position: relative;
  overflow: hidden;
}

.manifesto::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(201, 168, 76, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.manifesto-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.manifesto h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
  font-weight: 600;
  color: var(--cream);
}

.manifesto p {
  font-size: 1.15rem;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Features */
.features {
  padding: 8rem 3rem;
}

.features-header {
  max-width: 500px;
  margin-bottom: 5rem;
}

.features-header .eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.features-header h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--cream);
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.feature-card {
  background: var(--black);
  padding: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: background 0.3s ease;
}

.feature-card:hover { background: var(--surface); }

.feature-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.feature-card h3 {
  font-size: 1.4rem;
  letter-spacing: -0.01em;
  font-weight: 600;
  color: var(--cream);
}

.feature-card p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* Closing */
.closing {
  padding: 10rem 3rem;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.closing h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--cream);
}

.closing h2 em {
  font-style: italic;
  color: var(--gold);
}

.closing p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

/* Footer */
.main-footer {
  padding: 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
}

.main-footer .logo { font-size: 1.2rem; }
.main-footer p { font-size: 0.8rem; color: var(--text-secondary); }

/* --- Inquiries Page --- */
.inquiry-card {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 1rem;
}

.inquiry-card:last-child { border-bottom: none; }

.inquiry-artwork-thumb {
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  object-fit: cover;
  flex-shrink: 0;
}

.inquiry-meta {
  flex: 1;
}

.inquiry-from {
  font-weight: 600;
  margin-bottom: 0.2rem;
  color: var(--text-light);
}

.inquiry-message {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.3rem;
}

.inquiry-date {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* --- Loading --- */
.loading-spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-strong);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.page-loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 50vh;
}

/* --- Pagination --- */
.pagination {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 2rem 0 3rem;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .main-nav { padding: 0.75rem 1rem; }
  .nav-links { gap: 0.25rem; }
  .nav-link { padding: 0.4rem 0.5rem; font-size: 0.8rem; }
  .btn-small { padding: 0.35rem 0.75rem; font-size: 0.75rem; }

  .page { padding-top: 4rem; }
  .container { padding: 0 1rem; }

  .hero { padding: 6rem 1.5rem 3rem; }
  .hero-actions { flex-direction: column; }
  .hero-stats { flex-direction: column; gap: 1.5rem; }

  .manifesto { padding: 5rem 1.5rem; }
  .features { padding: 5rem 1.5rem; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-card { padding: 2.5rem 2rem; }
  .closing { padding: 6rem 1.5rem; }

  .gallery-grid { columns: 2 150px; column-gap: 0.75rem; }
  .artwork-card { margin-bottom: 0.75rem; }
  .artwork-card-body { padding: 0.75rem; }
  .artwork-card-title { font-size: 0.85rem; }

  .artwork-detail {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .profile-name { font-size: 1.5rem; }
  .profile-stats { gap: 1.5rem; }

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

  .main-footer {
    padding: 2rem 1.5rem;
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .auth-container { padding: 2rem 0; }
  .upload-area { padding: 1rem 0 3rem; }
}

@media (max-width: 480px) {
  .gallery-grid { columns: 1; }
}

/* --- Utility --- */
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-gold { color: var(--gold); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.hidden { display: none !important; }