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

:root {
  --primary: #1a237e;
  --primary-light: #534bae;
  --accent: #ffd700;
  --bg: #0d1117;
  --bg-card: #161b22;
  --text: #f0f6fc;
  --text-muted: #8b949e;
  --border: #30363d;
  --danger: #f85149;
}

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

/* Login */
.login-page {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

.login-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 400px;
}

.login-box h1 {
  margin-bottom: 1.5rem;
  text-align: center;
  color: var(--accent);
}

.login-box form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.login-box input {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

.login-box button {
  padding: 0.75rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.login-box button:hover {
  background: var(--primary-light);
}

.login-box button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.error {
  color: var(--danger);
  text-align: center;
}

/* Dashboard */
.dashboard {
  min-height: 100vh;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}

.admin-header h1 {
  color: var(--accent);
}

.admin-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.admin-actions {
  margin-bottom: 1.5rem;
}

.btn-primary {
  padding: 0.75rem 1.5rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover {
  background: var(--primary-light);
}

.btn-logout {
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

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

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal h2 {
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

.form-group textarea {
  resize: vertical;
  font-family: monospace;
  font-size: 0.85rem;
}

.hint {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.preview {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.preview label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.preview img {
  max-width: 200px;
  max-height: 200px;
  object-fit: contain;
  border-radius: 4px;
}

/* Card Search */
.card-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-top: 4px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 10;
}

.card-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem;
  cursor: pointer;
  transition: background 0.2s;
}

.card-result:hover {
  background: var(--border);
}

.card-name {
  font-weight: 500;
}

.card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.selected-card {
  margin-top: 0.5rem;
  padding: 0.5rem;
  background: var(--primary);
  border-radius: 4px;
  font-size: 0.9rem;
}

.card-rarity {
  margin-left: 0.5rem;
  opacity: 0.8;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-row .form-group {
  flex: 1;
}

.form-group {
  position: relative;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
}

.tab {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: all 0.2s;
}

.tab:hover {
  color: var(--text);
  background: var(--border);
}

.tab.active {
  color: var(--accent);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-bottom: none;
}

/* Filters Bar */
.filters-bar {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.filters-bar input,
.filters-bar select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 0.9rem;
}

.filters-bar .search-input {
  flex: 1;
  min-width: 200px;
}

.result-count {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.card-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  gap: 1rem;
}

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

.card-title {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.tag {
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  background: var(--border);
  color: var(--text-muted);
}

.tag.rarity {
  background: var(--primary);
  color: white;
}

.tag.type {
  background: var(--border);
}

.tag.attr {
  background: #2d333b;
}

.btn-add {
  padding: 0.5rem 1rem;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.2s;
}

.btn-add:hover {
  background: var(--primary-light);
}

.selected-card-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--primary);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-actions button {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
}

.form-actions button:first-child {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

/* Product Table */
.admin-products h2 {
  margin-bottom: 1rem;
}

.product-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: 8px;
  overflow: hidden;
}

.product-table th,
.product-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.product-table th {
  color: var(--text-muted);
  font-weight: 500;
  background: var(--bg);
}

.product-table .thumb {
  width: 50px;
  height: 50px;
  object-fit: cover;
  border-radius: 4px;
}

.product-table button {
  padding: 0.5rem 0.75rem;
  margin-right: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 4px;
  cursor: pointer;
}

.product-table button:hover {
  background: var(--border);
}

/* Responsive */
@media (max-width: 768px) {
  .admin-header {
    flex-direction: column;
    gap: 1rem;
  }

  .admin-main {
    padding: 1rem;
  }

  .product-table {
    font-size: 0.9rem;
  }
}