/* ================================================
   Creator Platform - Web3 Dark Theme
   December 2025
   ================================================ */

:root {
  /* Colors */
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #16161f;
  --bg-hover: #1c1c28;
  
  --purple: #8b5cf6;
  --purple-dark: #7c3aed;
  --cyan: #06b6d4;
  --green: #10b981;
  --red: #ef4444;
  --orange: #f97316;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border: #1e1e2e;
  --border-light: #2a2a3e;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
  --gradient-card: linear-gradient(145deg, #16161f 0%, #12121a 100%);
  
  /* Sizes */
  --sidebar-width: 260px;
  --header-height: 70px;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  
  /* Transitions */
  --transition: all 0.2s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ================================================
   Header - Fixed Top
   ================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.logo-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Wallet Button - Fixed Top Right */
.wallet-section {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-wallet {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--gradient-primary);
  border: none;
  border-radius: var(--border-radius);
  color: white;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
}

.btn-wallet:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.btn-wallet.connected {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
}

.wallet-address {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
}

/* ================================================
   Sidebar - Fixed Left
   ================================================ */

.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 24px 16px;
  overflow-y: auto;
  z-index: 900;
}

.sidebar-section {
  margin-bottom: 32px;
}

.sidebar-title {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding: 0 12px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  transition: var(--transition);
  cursor: pointer;
}

.nav-item:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.nav-item.active {
  background: rgba(139, 92, 246, 0.15);
  color: var(--purple);
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* Category tags */
.category-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: var(--transition);
  cursor: pointer;
}

.category-tag:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.category-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.category-dot.trading { background: var(--orange); }
.category-dot.airdrops { background: var(--green); }
.category-dot.defi { background: var(--cyan); }
.category-dot.nfts { background: var(--purple); }
.category-dot.dev { background: #ec4899; }
.category-dot.other { background: var(--text-muted); }

/* ================================================
   Main Content
   ================================================ */

.main-content {
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  padding: 32px;
  min-height: calc(100vh - var(--header-height));
}

/* Page Header */
.page-header {
  margin-bottom: 32px;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* ================================================
   Cards & Grid
   ================================================ */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

/* Product Card */
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}

.product-card:hover {
  border-color: var(--purple);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.product-thumbnail {
  width: 100%;
  height: 180px;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.product-info {
  padding: 20px;
}

.product-category {
  display: inline-block;
  padding: 4px 10px;
  background: rgba(139, 92, 246, 0.15);
  color: var(--purple);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.product-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-creator {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.creator-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--gradient-primary);
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-price {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  font-size: 1.1rem;
}

.price-usdc {
  color: var(--green);
}

.product-stats {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ================================================
   Forms
   ================================================ */

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-sublabel {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-left: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

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

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
}

/* File Upload */
.file-upload {
  border: 2px dashed var(--border);
  border-radius: var(--border-radius);
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.file-upload:hover {
  border-color: var(--purple);
  background: rgba(139, 92, 246, 0.05);
}

.file-upload-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.file-upload-text {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.file-upload-hint {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.file-selected {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--green);
  border-radius: var(--border-radius-sm);
  margin-top: 16px;
}

.file-selected-icon {
  color: var(--green);
  font-size: 1.5rem;
}

.file-selected-name {
  flex: 1;
  font-weight: 500;
}

.file-selected-remove {
  color: var(--red);
  cursor: pointer;
  padding: 4px;
}

/* Price Input */
.price-input-wrapper {
  position: relative;
}

.price-input-wrapper .form-input {
  padding-left: 50px;
}

.price-currency {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--green);
  font-weight: 600;
}

/* ================================================
   Buttons
   ================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--border-radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 92, 246, 0.35);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-light);
  background: var(--bg-hover);
}

.btn-success {
  background: var(--green);
  color: white;
}

.btn-success:hover {
  background: #0d9668;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 1.1rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ================================================
   Create Product Page
   ================================================ */

.create-container {
  max-width: 800px;
  margin: 0 auto;
}

.create-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 32px;
}

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

.create-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.create-subtitle {
  color: var(--text-secondary);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.form-divider {
  height: 1px;
  background: var(--border);
  margin: 32px 0;
}

.form-section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Preview Card */
.preview-section {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.preview-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

/* ================================================
   Alerts & Messages
   ================================================ */

.alert {
  padding: 16px 20px;
  border-radius: var(--border-radius-sm);
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid var(--green);
  color: var(--green);
}

.alert-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--red);
  color: var(--red);
}

.alert-warning {
  background: rgba(249, 115, 22, 0.1);
  border: 1px solid var(--orange);
  color: var(--orange);
}

/* ================================================
   Loading & Empty States
   ================================================ */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.empty-state {
  text-align: center;
  padding: 60px 20px;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  opacity: 0.5;
}

.empty-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.empty-text {
  color: var(--text-secondary);
  margin-bottom: 24px;
}

/* ================================================
   Modal
   ================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: var(--transition);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

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

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.5rem;
  padding: 4px;
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  padding: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* ================================================
   Responsive
   ================================================ */

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 0 16px;
  }
  
  .main-content {
    padding: 20px 16px;
  }
  
  .page-title {
    font-size: 1.5rem;
  }
  
  .btn-wallet span {
    display: none;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
}