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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #22263a;
  --border: #2e3250;
  --accent: #f6821f;
  --accent-dim: rgba(246,130,31,0.15);
  --text: #e8eaf0;
  --text-muted: #7b82a0;
  --green: #22c55e;
  --red: #ef4444;
  --radius: 10px;
  --font: 'Inter', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* Header */
.header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 15px;
  color: var(--accent);
  white-space: nowrap;
}
.worker-url-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}
.worker-url-bar label {
  color: var(--text-muted);
  white-space: nowrap;
  font-size: 12px;
}
.worker-url-bar input {
  flex: 1;
  min-width: 0;
}

/* Tabs */
.tabs {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border);
  margin-top: 0;
}
.tab {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 12px 16px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Content */
.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 20px;
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-header { margin-bottom: 24px; }
.panel-header h2 { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.panel-header p { color: var(--text-muted); font-size: 13px; }

/* Form */
.form { max-width: 520px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}
.form-group-inline {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.form-group-inline label:first-child { margin-bottom: 0; }
.form-group-inline .hint { margin-top: 0; }

input[type="text"],
input[type="url"],
input[type="password"],
input[type="number"],
textarea {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 9px 12px;
  font-size: 13px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}
input:focus, textarea:focus {
  border-color: var(--accent);
}
.hint {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 5px;
}
.hint code {
  background: var(--surface2);
  padding: 1px 5px;
  border-radius: 4px;
  font-family: monospace;
}
.divider {
  border-top: 1px solid var(--border);
  margin: 22px 0;
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity 0.15s, background 0.15s;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { opacity: 0.88; }
.btn-ghost {
  background: var(--surface2);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover:not(:disabled) { color: var(--text); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

/* Status message */
.status-msg {
  font-size: 12px;
  color: var(--green);
  transition: opacity 0.3s;
}
.status-msg.error { color: var(--red); }

/* Chat */
.chat-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: calc(100vh - 280px);
  min-height: 400px;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.chat-empty {
  color: var(--text-muted);
  text-align: center;
  margin: auto;
  font-size: 13px;
}
.chat-msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-width: 80%;
}
.chat-msg.user { align-self: flex-end; align-items: flex-end; }
.chat-msg.assistant { align-self: flex-start; }
.chat-msg-role {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.chat-msg-content {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.65;
  white-space: pre-wrap;
  word-break: break-word;
}
.chat-msg.user .chat-msg-content {
  background: var(--accent-dim);
  border-color: rgba(246,130,31,0.3);
}
.chat-msg-content.streaming::after {
  content: '▋';
  animation: blink 0.8s step-end infinite;
  color: var(--accent);
}
@keyframes blink { 50% { opacity: 0; } }

.chat-input-area {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.chat-input-area textarea {
  resize: none;
}
.chat-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Stats */
.stats-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.stats-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
}
.stat-value {
  font-size: 32px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.stats-logs {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.log-table th {
  background: var(--surface2);
  padding: 10px 14px;
  text-align: left;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
}
.log-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.log-table tr:last-child td { border-bottom: none; }
.log-table tr:hover td { background: var(--surface2); }
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}
.badge-green { background: rgba(34,197,94,0.15); color: var(--green); }
.badge-gray { background: var(--surface2); color: var(--text-muted); }

/* Toggle */
.toggle {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 22px;
  cursor: pointer;
  transition: background 0.2s;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.toggle input:checked + .toggle-slider { background: var(--accent-dim); border-color: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(18px); background: var(--accent); }

.hidden { display: none !important; }

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