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

:root {
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --surface-2: #242424;
  --surface-3: #2e2e2e;
  --border: #333;
  --text: #e0e0e0;
  --text-dim: #888;
  --accent: #4ecdc4;
  --accent-hover: #3dbdb5;
  --danger: #e74c3c;
  --success: #2ecc71;
  --warning: #f39c12;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
  --radius: 8px;
  --radius-sm: 4px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

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

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 360px;
  text-align: center;
}

.login-card h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 4px;
}

.login-card .subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 28px;
}

.login-card input {
  display: block;
  width: 100%;
  padding: 10px 14px;
  margin-bottom: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.login-card input:focus {
  border-color: var(--accent);
}

.login-card button {
  width: 100%;
  padding: 10px;
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 4px;
}

.login-card button:hover {
  background: var(--accent-hover);
}

.error {
  color: var(--danger);
  font-size: 13px;
  margin-top: 12px;
}

.hidden { display: none !important; }

/* === App Layout === */
.app {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 10;
}

.sidebar-header {
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 16px;
  font-weight: 700;
  color: var(--accent);
}

.nav-links {
  list-style: none;
  padding: 8px 0;
  flex: 1;
  overflow-y: auto;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: all 0.15s;
}

.nav-link:hover {
  background: var(--surface-2);
  color: var(--text);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(78, 205, 196, 0.05);
  border-left-color: var(--accent);
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}

.btn-logout {
  width: 100%;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 13px;
  cursor: pointer;
}

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

/* === Main Content === */
.content {
  margin-left: 220px;
  flex: 1;
  padding: 24px 32px;
  max-width: 1200px;
}

.page-header {
  margin-bottom: 24px;
}

.page-header h1 {
  font-size: 22px;
  font-weight: 600;
}

.page-header p {
  color: var(--text-dim);
  font-size: 14px;
  margin-top: 4px;
}

/* === Form Elements === */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

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

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #000;
}

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

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

.btn-secondary {
  background: var(--surface-3);
  color: var(--text);
  border: 1px solid var(--border);
}

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

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

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* === Cards === */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.card-image {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  margin-bottom: 12px;
}

/* === Section Collapsible === */
.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 16px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  user-select: none;
}

.section-header h3 {
  font-size: 14px;
  font-weight: 600;
}

.section-header .chevron {
  transition: transform 0.2s;
  color: var(--text-dim);
}

.section.collapsed .section-body {
  display: none;
}

.section.collapsed .chevron {
  transform: rotate(-90deg);
}

.section-body {
  padding: 0 18px 18px;
}

/* === Tag Picker === */
.tag-picker {
  position: relative;
}

.tag-picker .tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-height: 38px;
  cursor: text;
}

.tag-picker .tags-container:focus-within {
  border-color: var(--accent);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(78, 205, 196, 0.15);
  color: var(--accent);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.tag .tag-remove {
  cursor: pointer;
  opacity: 0.7;
  font-size: 14px;
  line-height: 1;
}

.tag .tag-remove:hover {
  opacity: 1;
}

.tag-picker input {
  border: none;
  background: none;
  color: var(--text);
  font-size: 13px;
  outline: none;
  flex: 1;
  min-width: 80px;
  padding: 2px 0;
}

.tag-picker .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  margin-top: 2px;
}

.tag-picker .dropdown.hidden { display: none; }

.tag-picker .dropdown-item {
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
}

.tag-picker .dropdown-item:hover,
.tag-picker .dropdown-item.highlighted {
  background: var(--surface-3);
}

.tag-picker .dropdown-item.selected {
  color: var(--accent);
}

/* === Searchable Select === */
.search-select {
  position: relative;
}

.search-select input {
  width: 100%;
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.search-select input:focus {
  border-color: var(--accent);
}

.search-select .dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  max-height: 200px;
  overflow-y: auto;
  z-index: 100;
  margin-top: 2px;
}

.search-select .dropdown.hidden { display: none; }

.search-select .dropdown-item {
  padding: 8px 12px;
  font-size: 13px;
  cursor: pointer;
}

.search-select .dropdown-item:hover,
.search-select .dropdown-item.highlighted {
  background: var(--surface-3);
}

/* === Chat === */
.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 120px);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.chat-bubble {
  max-width: 75%;
  padding: 10px 14px;
  border-radius: 16px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.5;
  word-wrap: break-word;
}

.chat-bubble.user {
  background: var(--accent);
  color: #000;
  margin-left: auto;
  border-bottom-right-radius: 4px;
}

.chat-bubble.character {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
}

.chat-input-bar {
  display: flex;
  gap: 8px;
  padding: 12px 0;
  border-top: 1px solid var(--border);
}

.chat-input-bar input {
  flex: 1;
  padding: 10px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text);
  font-size: 14px;
  outline: none;
}

.chat-input-bar input:focus {
  border-color: var(--accent);
}

/* === Tables === */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--surface);
  position: sticky;
  top: 0;
}

tr:hover td {
  background: rgba(78, 205, 196, 0.03);
}

/* === Status Badges === */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
}

.badge-success { background: rgba(46, 204, 113, 0.15); color: var(--success); }
.badge-danger { background: rgba(231, 76, 60, 0.15); color: var(--danger); }
.badge-warning { background: rgba(243, 156, 18, 0.15); color: var(--warning); }
.badge-info { background: rgba(78, 205, 196, 0.15); color: var(--accent); }

/* === JSON Viewer === */
.json-viewer {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 400px;
  overflow-y: auto;
}

/* === Loading Spinner === */
.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 40px;
  color: var(--text-dim);
  font-size: 14px;
}

/* === Progress Bar === */
.progress-bar {
  height: 4px;
  background: var(--surface-3);
  border-radius: 2px;
  overflow: hidden;
  margin: 12px 0;
}

.progress-bar .fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.3s;
}

/* === Toast === */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 13px;
  min-width: 280px;
  animation: slideIn 0.2s ease-out;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* === Utility === */
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.text-dim { color: var(--text-dim); }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.mono { font-family: var(--mono); }

/* === Audio Player === */
.audio-player {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 12px;
}

.audio-player audio {
  width: 100%;
}

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.empty-state svg {
  opacity: 0.3;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 16px;
  margin-bottom: 8px;
  color: var(--text);
}

/* === Scrollbar === */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* === Responsive (optional, desktop-first) === */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h2, .nav-link span { display: none; }
  .content { margin-left: 60px; padding: 16px; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
}