:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242836;
  --border: #2e3345;
  --text: #e8eaef;
  --text-muted: #8b92a8;
  --primary: #5b8def;
  --primary-hover: #4a7de0;
  --success: #3dd68c;
  --error: #f07178;
  --warning: #ffcb6b;
  --radius: 8px;
  --font-mono: "Cascadia Code", "Fira Code", Consolas, monospace;
}

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

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

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

header h1 {
  font-size: 18px;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-logout {
  padding: 6px 12px;
  font-size: 12px;
}

.config-badge {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--surface2);
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: calc(100vh - 57px);
}

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--surface);
  overflow-y: auto;
}

.search-box {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}

.search-box input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}

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

.category-title {
  display: none;
}

.category-section {
  border-bottom: 1px solid var(--border);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: var(--surface2);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  text-align: left;
  position: sticky;
  top: 53px;
  z-index: 1;
}

.category-header:hover {
  background: var(--border);
}

.category-arrow {
  font-size: 10px;
  color: var(--text-muted);
  width: 12px;
}

.category-label {
  flex: 1;
}

.category-count {
  font-size: 11px;
  color: var(--text-muted);
  background: var(--bg);
  padding: 1px 7px;
  border-radius: 10px;
}

.category-items {
  padding-bottom: 4px;
}

.empty-hint {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
}

.api-desc {
  margin-bottom: 16px;
  padding: 10px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 13px;
  line-height: 1.5;
  min-height: 0;
}

.api-desc:empty {
  display: none;
}

.api-desc strong {
  display: block;
  margin-bottom: 4px;
  color: var(--primary);
}

.api-desc span {
  color: var(--text-muted);
}

.mark-panel {
  margin-bottom: 16px;
  padding: 10px 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.mark-panel-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.mark-note-input {
  flex: 1;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 13px;
}

.mark-note-input:focus {
  outline: none;
  border-color: var(--primary);
}

.mark-hint {
  margin-top: 8px;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
}

.mark-hint code {
  font-family: var(--font-mono);
  font-size: 10px;
}

.api-item {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  width: 100%;
  text-align: left;
  padding: 10px 8px 10px 16px;
  border: none;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  border-left: 3px solid transparent;
}

.api-item-body {
  flex: 1;
  min-width: 0;
  display: block;
  width: 100%;
  text-align: left;
  padding: 0;
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: inherit;
}

.api-item-body .api-name { font-weight: 500; }

.api-mark-star {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  margin-top: 2px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
}

.api-mark-star:hover {
  background: var(--surface2);
  color: var(--warning);
}

.api-mark-star.is-marked {
  color: #ffb86b;
}

.api-item:hover {
  background: var(--surface2);
}

.api-item.active {
  background: var(--surface2);
  border-left-color: var(--primary);
  color: var(--primary);
}

.api-item .api-name { font-weight: 500; }
.api-item .api-type {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--font-mono);
}

.api-item .api-type.unavailable {
  display: inline-block;
  color: #fff;
  background: #c45c26;
  padding: 2px 6px;
  border-radius: 4px;
  margin-top: 4px;
}

.api-unavailable-tip {
  display: block;
  margin: 4px 0 6px;
  padding: 4px 8px;
  font-size: 12px;
  color: #ffb86b;
  background: rgba(196, 92, 38, 0.15);
  border-radius: 4px;
}

.workspace {
  display: grid;
  grid-template-rows: 1fr 1fr;
  gap: 0;
  overflow: hidden;
}

.panel {
  padding: 20px 24px;
  overflow-y: auto;
  border-bottom: 1px solid var(--border);
}

.panel label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
  margin-top: 12px;
}

.panel label:first-child { margin-top: 0; }

#api-type {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
}

#api-type:focus {
  outline: none;
  border-color: var(--primary);
}

#request-body {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  resize: vertical;
}

#request-body:focus {
  outline: none;
  border-color: var(--primary);
}

.actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

button {
  padding: 8px 16px;
  border-radius: var(--radius);
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s;
}

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

.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}

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

.btn-mark-unavailable.is-marked {
  background: rgba(196, 92, 38, 0.25);
  border-color: #c45c26;
  color: #ffb86b;
}

.response-panel {
  border-bottom: none;
  display: flex;
  flex-direction: column;
}

.response-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.response-header h2 {
  font-size: 14px;
  font-weight: 600;
}

.meta {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.response {
  flex: 1;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  min-height: 200px;
}

.response.ok { border-color: rgba(61, 214, 140, 0.3); }
.response.error { border-color: rgba(240, 113, 120, 0.3); }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { max-height: 200px; }
  .workspace { grid-template-rows: auto 1fr; }
}

.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}

.login-card h1 {
  font-size: 20px;
  margin-bottom: 8px;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 24px;
}

.login-card label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
  margin-top: 16px;
}

.login-card label:first-of-type {
  margin-top: 0;
}

.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
}

.login-card input:focus {
  outline: none;
  border-color: var(--primary);
}

.login-error {
  margin-top: 16px;
  color: var(--error);
  font-size: 13px;
}

.login-btn {
  width: 100%;
  margin-top: 24px;
  padding: 10px;
}