:root {
  color-scheme: dark;
  --bg: #10151c;
  --surface: #1b2430;
  --border: #314155;
  --text: #e7eef7;
  --muted: #93a4b8;
  --accent: #3d8bfd;
  --danger: #ef4444;
  --user-bubble: #243447;
  --assistant-bubble: #15202b;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at top left, #1a2738, var(--bg));
  color: var(--text);
  min-height: 100vh;
}

.shell {
  display: grid;
  grid-template-columns: 320px 1fr;
  min-height: 100vh;
}

/* `display: grid` must not override the HTML hidden attribute */
[hidden] {
  display: none !important;
}

.sidebar {
  border-right: 1px solid var(--border);
  padding: 1.25rem;
  background: rgba(16, 21, 28, 0.72);
  overflow-y: auto;
}

.brand h1 {
  margin: 0;
  font-size: 1.6rem;
  letter-spacing: 0.02em;
}

.brand p {
  margin: 0.25rem 0 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.view-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.nav-btn {
  border: 1px solid var(--border);
  background: #0f1620;
  color: var(--muted);
  border-radius: 8px;
  padding: 0.55rem 0.4rem;
  cursor: pointer;
  font-size: 0.85rem;
}

.nav-btn.active {
  color: var(--text);
  border-color: var(--accent);
  background: #182433;
}

.panel.compact .subhead {
  margin: 1rem 0 0.65rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.skills-manage {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 0;
}

.manage-page-header {
  padding-bottom: 0.5rem;
}

.manage-page-tabs {
  display: flex;
  gap: 0.35rem;
  padding: 0 1.25rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.manage-page-tab {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px 8px 0 0;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.9rem;
  padding: 0.55rem 0.9rem;
}

.manage-page-tab:hover {
  color: var(--text);
}

.manage-page-tab.active {
  background: var(--surface);
  border-color: var(--border);
  border-bottom-color: var(--surface);
  color: var(--text);
  margin-bottom: -1px;
}

.manage-tab-panel {
  flex: 1;
  min-height: 0;
  padding: 1rem 1.25rem 1.25rem;
}

.manage-tab-panel.active {
  display: block;
}

.manage-tab-panel:not(.active) {
  display: none;
}

.manage-master-detail {
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.manage-sidebar {
  position: sticky;
  top: 0;
  max-height: calc(100vh - 180px);
  display: flex;
  flex-direction: column;
}

.manage-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.manage-sidebar-head h3 {
  margin: 0;
}

.manage-editor {
  min-width: 0;
}

.manage-editor-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.manage-editor-tab {
  background: #0f1620;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  padding: 0.45rem 0.85rem;
}

.manage-editor-tab.active {
  background: var(--surface);
  border-color: var(--accent, #3d8bfd);
  color: var(--text);
}

.manage-editor-panel {
  display: none;
}

.manage-editor-panel.active {
  display: block;
}

.manage-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.manage-form-grid-wide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.manage-form-grid-wide .manage-span-2 {
  grid-column: 1 / -1;
}

.manage-inline-actions {
  margin-top: 0.5rem;
}

.manage-inline-actions input {
  flex: 1;
  margin: 0;
}

.manage-full-panel {
  max-width: 960px;
}

.manage-tool-test-panel {
  max-width: 960px;
  margin-bottom: 1rem;
  border-color: var(--accent, #3d8bfd);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent, #3d8bfd) 35%, transparent);
}

.manage-tool-test-panel h3 {
  margin-top: 0;
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent, #3d8bfd);
  cursor: pointer;
  font: inherit;
  font-size: inherit;
  padding: 0;
  text-decoration: underline;
}

.link-btn:hover {
  color: var(--text);
}

.link-btn:disabled {
  color: var(--muted);
  cursor: not-allowed;
  text-decoration: none;
}

.manage-agents-panel .manage-agent-skills {
  max-height: calc(100vh - 340px);
  overflow-y: auto;
}

@media (max-width: 900px) {
  .manage-master-detail {
    grid-template-columns: 1fr;
  }

  .manage-sidebar {
    position: static;
    max-height: none;
  }

  .manage-skill-catalog {
    max-height: 280px;
  }

  .manage-form-grid,
  .manage-form-grid-wide {
    grid-template-columns: 1fr;
  }
}

.manage-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 1rem;
  padding: 0 1.25rem 1.25rem;
}

.manage-skill-card.selected {
  border-color: var(--accent, #3d8bfd);
  box-shadow: inset 0 0 0 1px var(--accent, #3d8bfd);
}

.manage-skill-card {
  cursor: pointer;
}

.manage-try-result {
  margin: 0.75rem 0 0;
  padding: 0.75rem;
  max-height: 220px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: #0f1620;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--text);
}

.manage-fieldset {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem 0.7rem;
  margin: 0 0 0.7rem;
}

.manage-fieldset legend {
  padding: 0 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.manage-check-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.85rem;
}

.manage-check-grid label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin: 0;
  font-size: 0.82rem;
}

.manage-check-grid input {
  width: auto;
  margin: 0;
}

.manage-capability-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.manage-capability-row {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  background: #0c121a;
}

.manage-capability-row header {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.manage-capability-row header label {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  margin: 0;
  flex: 1;
}

.manage-capability-row header input[type="checkbox"] {
  width: auto;
  margin: 0.2rem 0 0;
}

.manage-capability-row .cap-title {
  font-size: 0.88rem;
  font-weight: 600;
}

.manage-capability-row .cap-desc {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.manage-capability-row textarea {
  margin-top: 0.35rem;
  min-height: 2.6rem;
  font-size: 0.82rem;
}

.manage-library {
  margin: 0.85rem 0 1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
}

.manage-library summary {
  cursor: pointer;
  font-size: 0.9rem;
  margin-bottom: 0.45rem;
}

.manage-library .actions {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.65rem;
}

.manage-subhead {
  margin: 0.85rem 0 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.manage-add-tool {
  display: grid;
  gap: 0.45rem;
  margin-bottom: 0.5rem;
}

.manage-test-params {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
  margin: 0.65rem 0;
}

.manage-test-params label {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .manage-test-params {
    grid-template-columns: 1fr;
  }
}

.manage-add-tool label .muted.small {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.78rem;
}

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

.manage-divider {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 1.1rem 0;
}

.manage-panel h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.manage-skill-catalog {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
  min-height: 0;
  overflow-y: auto;
}

.manage-skill-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  background: #0f1620;
}

.manage-skill-card.disabled {
  opacity: 0.55;
}

.manage-skill-card header {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
  margin-bottom: 0.45rem;
}

.manage-skill-card h4 {
  margin: 0;
  font-size: 0.95rem;
}

.manage-skill-meta {
  margin: 0.2rem 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.manage-skill-meta code {
  color: var(--text);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.panel.compact h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}

label {
  display: block;
  margin-bottom: 0.7rem;
  font-size: 0.85rem;
}

input, select, textarea {
  width: 100%;
  margin-top: 0.3rem;
  background: #0f1620;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.55rem 0.7rem;
  font: inherit;
}

textarea { resize: vertical; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.35rem;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  background: #122033;
  color: var(--text);
  cursor: pointer;
  font: inherit;
}

.btn:hover { filter: brightness(1.08); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: transparent; color: #fff; }
.btn.danger { background: transparent; border-color: var(--danger); color: #fca5a5; }
.btn.secondary { background: #15202b; }

.muted { color: var(--muted); }
.small { font-size: 0.8rem; line-height: 1.35; }

.auth-gate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(61, 139, 253, 0.18), transparent 45%),
    radial-gradient(ellipse at 80% 90%, rgba(20, 40, 70, 0.55), transparent 40%),
    var(--bg);
}

body.auth-locked {
  overflow: hidden;
}

body.auth-locked .shell {
  visibility: hidden;
  pointer-events: none;
}

.auth-card {
  width: min(420px, 100%);
  background: rgba(27, 36, 48, 0.92);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem 1.4rem 1.35rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.auth-brand {
  text-align: center;
  margin-bottom: 0.5rem;
}

.auth-brand h1 {
  margin: 0;
  font-size: 2rem;
}

.auth-brand p {
  margin: 0.35rem 0 1.1rem;
  color: var(--muted);
}

.auth-form label {
  margin-bottom: 0.85rem;
}

.auth-error {
  margin: 0.75rem 0 0;
  color: #fecaca;
  font-size: 0.85rem;
}

.advanced {
  margin-top: 0.85rem;
  border-top: 1px dashed var(--border);
  padding-top: 0.75rem;
}

.advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 0.65rem;
}

.advanced[open] summary {
  margin-bottom: 0.85rem;
}

.selection {
  margin: 0.5rem 0 0.85rem;
  padding: 0.45rem 0.55rem;
  border-radius: 8px;
  background: #0f1620;
  border: 1px dashed var(--border);
}

.skill-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin: 0.5rem 0 0.75rem;
  max-height: 280px;
  overflow-y: auto;
}

.skill-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.55rem;
  align-items: start;
  padding: 0.45rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1620;
  cursor: pointer;
}

.skill-row input {
  margin-top: 0.2rem;
}

.skill-row code {
  font-size: 0.75rem;
  color: var(--muted);
}

.result-list {
  list-style: none;
  margin: 0.45rem 0 0.75rem;
  padding: 0;
  max-height: 160px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1620;
}

.result-list li {
  margin: 0;
  border-bottom: 1px solid var(--border);
}

.result-list li:last-child { border-bottom: none; }

.result-list button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 0.55rem 0.65rem;
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  line-height: 1.35;
}

.result-list button:hover,
.result-list button.active {
  background: #1a2a3d;
}

.result-list .sub {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
}

.chat-pane {
  min-height: 100vh;
  max-height: 100vh;
  overflow: hidden;
}

#view-chat {
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
}

#view-skills {
  height: 100vh;
  overflow: auto;
}

#view-integration {
  height: 100vh;
  overflow: auto;
}

.integration-content {
  padding: 0 1.25rem 1.5rem;
  max-width: 980px;
}

.integration-head {
  margin: 1.25rem 0 0.35rem;
  font-size: 0.95rem;
}

.integration-code {
  margin: 0.35rem 0 0;
  padding: 0.75rem;
  background: #0f1620;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.45;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.integration-code-wide {
  max-height: 220px;
}

.integration-copy-row {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

.integration-copy-row pre {
  flex: 1;
  min-width: 0;
}

.integration-badge {
  display: inline-block;
  padding: 0.25rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.integration-badge.secure {
  background: color-mix(in srgb, #2ecc71 20%, transparent);
  color: #7dffb3;
  border: 1px solid color-mix(in srgb, #2ecc71 45%, transparent);
}

.integration-badge.open {
  background: color-mix(in srgb, #f39c12 20%, transparent);
  color: #ffd28a;
  border: 1px solid color-mix(in srgb, #f39c12 45%, transparent);
}

.integration-list {
  margin: 0.35rem 0 0.75rem;
  padding-left: 1.1rem;
}

.chat-context-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: 0.5rem 0 0.65rem;
}

.chat-context-fields label:first-child {
  grid-column: 1 / -1;
}

@media (max-width: 900px) {
  .chat-context-fields {
    grid-template-columns: 1fr;
  }
}

.chat-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.chat-header h2 { margin: 0 0 0.2rem; }

.messages {
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.bubble {
  max-width: min(720px, 92%);
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.45;
}

.bubble.user {
  align-self: flex-end;
  background: var(--user-bubble);
}

.bubble.assistant {
  align-self: flex-start;
  background: var(--assistant-bubble);
}

.bubble .meta {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.bubble.error {
  align-self: stretch;
  border-color: var(--danger);
  color: #fecaca;
}

.composer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem 1.25rem;
  background: rgba(16, 21, 28, 0.85);
}

.composer-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.65rem;
}

@media (max-width: 900px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .manage-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .chat-pane {
    min-height: 70vh;
    max-height: none;
  }

  #view-chat,
  #view-skills {
    height: auto;
    min-height: 70vh;
  }
}