:root {
  --admin-bg: #080710;
  --admin-card: rgba(18, 17, 32, 0.8);
  --admin-border: rgba(255, 255, 255, 0.08);
  --admin-primary: #00f5d4;
  --admin-secondary: #9d4edd;
  --admin-text: #f0f3ff;
  --admin-text-muted: #8e94a5;
  --admin-radius: 12px;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--admin-bg);
  color: var(--admin-text);
  min-height: 100vh;
}

.admin-header {
  background: rgba(8, 7, 16, 0.9);
  border-bottom: 1px solid var(--admin-border);
  padding: 16px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.admin-header h1 {
  font-size: 18px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.admin-back-link {
  color: var(--admin-text-muted);
  text-decoration: none;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.admin-back-link:hover {
  color: var(--admin-primary);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 20px;
  backdrop-filter: blur(10px);
}

.stat-card h3 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--admin-text-muted);
  margin-bottom: 8px;
  font-family: 'Inter', sans-serif;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--admin-primary);
  font-family: 'Orbitron', monospace;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--admin-radius);
  padding: 4px;
  border: 1px solid var(--admin-border);
}

.tab-btn {
  flex: 1;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--admin-text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.tab-btn:hover {
  color: var(--admin-text);
  background: rgba(255,255,255,0.05);
}

.tab-btn.active {
  background: rgba(0, 245, 212, 0.1);
  color: var(--admin-primary);
  border: 1px solid rgba(0, 245, 212, 0.2);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Content Generator */
.generator-form {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 24px;
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--admin-text-muted);
  margin-bottom: 8px;
  font-weight: 600;
}

.form-control {
  width: 100%;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--admin-text);
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--admin-primary);
}

select.form-control {
  cursor: pointer;
}

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

.btn {
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background: var(--admin-primary);
  color: #050508;
}

.btn-primary:hover {
  box-shadow: 0 0 20px rgba(0, 245, 212, 0.4);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background: rgba(255,255,255,0.05);
  color: var(--admin-text);
  border: 1px solid var(--admin-border);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
}

.generated-content {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 24px;
  display: none;
}

.generated-content.show { display: block; }

.generated-content .content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.generated-content .content-header h3 {
  font-size: 14px;
  color: var(--admin-primary);
  font-family: 'Inter', sans-serif;
}

.generated-content .content-body {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--admin-border);
  border-radius: 8px;
  padding: 16px;
  white-space: pre-wrap;
  font-size: 14px;
  line-height: 1.6;
  color: var(--admin-text);
  max-height: 400px;
  overflow-y: auto;
}

.generated-content .copy-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--admin-border);
  color: var(--admin-text-muted);
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.generated-content .copy-btn:hover {
  color: var(--admin-primary);
  border-color: var(--admin-primary);
}

/* Chat History */
.chat-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.chat-session-card {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: all 0.2s;
  cursor: pointer;
}

.chat-session-card:hover {
  border-color: rgba(0, 245, 212, 0.2);
  background: rgba(18, 17, 32, 0.9);
}

.chat-session-card .session-preview {
  font-size: 14px;
  color: var(--admin-text);
  flex: 1;
}

.chat-session-card .session-meta {
  font-size: 12px;
  color: var(--admin-text-muted);
  text-align: right;
  flex-shrink: 0;
}

/* Login Modal */
.login-modal {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(5,5,8,0.95);
  backdrop-filter: blur(12px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-modal.hidden {
  display: none;
}

.login-content {
  background: var(--admin-card);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  max-width: 400px;
  width: 100%;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.chat-detail-modal {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(5,5,8,0.8);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.chat-detail-modal.open { display: flex; }

.chat-detail-content {
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  max-width: 700px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 24px;
}

.chat-detail-content h3 {
  margin-bottom: 16px;
  font-size: 16px;
  font-family: 'Inter', sans-serif;
}

.chat-detail-msg {
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.5;
}

.chat-detail-msg.user {
  background: rgba(157, 78, 221, 0.1);
  border: 1px solid rgba(157, 78, 221, 0.2);
}

.chat-detail-msg.bot {
  background: rgba(0, 245, 212, 0.05);
  border: 1px solid rgba(0, 245, 212, 0.1);
}

.chat-detail-msg .msg-role {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--admin-text-muted);
  margin-bottom: 4px;
  font-weight: 600;
}

.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--admin-text-muted);
}

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

.empty-state p {
  font-size: 14px;
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--admin-text-muted);
}

.loading::after {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  border: 2px solid var(--admin-border);
  border-top-color: var(--admin-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

@media (max-width: 768px) {
  .tabs { flex-direction: column; }
  .admin-stats { grid-template-columns: 1fr; }
  .container { padding: 16px; }
}