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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface-hover: #222633;
  --border: #2d3348;
  --text: #e8eaef;
  --text-muted: #8b92a8;
  --accent: #5b8def;
  --accent-hover: #4a7de0;
  --danger: #e85d5d;
  --danger-hover: #d44a4a;
  --success: #4caf82;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.hidden {
  display: none !important;
}

/* Login */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1.5rem;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow);
}

.login-card h1 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.login-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

/* Layout */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header h1 {
  font-size: 1.15rem;
  font-weight: 600;
}

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

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

input,
textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.15s;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 72px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--surface-hover);
  color: var(--text);
}

.btn-danger {
  background: transparent;
  color: var(--danger);
  border: 1px solid transparent;
}

.btn-danger:hover:not(:disabled) {
  background: rgba(232, 93, 93, 0.1);
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.toolbar h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.toolbar-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.search-bar {
  margin-bottom: 1.5rem;
}

.search-bar input {
  width: 100%;
  max-width: 360px;
  padding: 0.6rem 0.85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
}

.search-bar input:focus {
  outline: none;
  border-color: var(--accent);
}

.search-bar input::placeholder {
  color: var(--text-muted);
}

/* Add form panel */
.add-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.add-panel h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
}

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

.form-actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* Catalog cards */
.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.catalog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.catalog-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
}

.catalog-meta h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.catalog-meta .subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.catalog-meta .description {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 0.5rem;
}

.catalog-xml-url {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--accent);
  font-size: 0.8rem;
  text-decoration: none;
  margin-top: 0.5rem;
  word-break: break-all;
}

.catalog-xml-url:hover {
  text-decoration: underline;
}

.catalog-actions {
  display: flex;
  gap: 0.35rem;
  flex-shrink: 0;
}

.catalog-body {
  padding: 1.25rem 1.5rem;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

/* Outbound links */
.outbound-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.outbound-link {
  display: block;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--accent);
  font-size: 0.8rem;
  text-decoration: none;
  word-break: break-all;
  white-space: normal;
}

.outbound-link:hover {
  border-color: var(--accent);
}

/* Asset grid */
.asset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

.asset-card {
  position: relative;
  border-radius: 8px;
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  aspect-ratio: 1;
}

.asset-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.asset-card .asset-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.3rem 0.5rem;
  background: rgba(0, 0, 0, 0.65);
  font-size: 0.7rem;
  color: #ccc;
  text-align: center;
}

/* States */
.loading,
.empty-state,
.error-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

.error-state {
  color: var(--danger);
}

.error-banner {
  background: rgba(232, 93, 93, 0.12);
  border: 1px solid rgba(232, 93, 93, 0.3);
  color: var(--danger);
  padding: 0.65rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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

.catalog-loading {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 1rem 0;
}

/* Edit inline */
.edit-form {
  padding: 1rem 0;
}

.edit-form .form-row {
  margin-bottom: 0;
}

@media (max-width: 640px) {
  .app-header {
    padding: 1rem;
  }

  .app-main {
    padding: 1rem;
  }

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

  .catalog-header {
    flex-direction: column;
  }

  .asset-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  }
}