:root {
  --ink: #221b15;
  --muted: #6b5f55;
  --accent: #b14d2b;
  --panel: #fffaf1;
  --border: #eadbc8;
  --bg: #f5ead7;
  --input-bg: #fffdf9;
  --input-fg: var(--ink);
  --card-bg: #fffefb;
  --panel-shadow: 0 18px 40px rgba(120, 85, 55, 0.12);
  color-scheme: light;
}

:root[data-theme="dark"] {
  --ink: #abb2bf;
  --muted: #8b93a5;
  --accent: #61afef;
  --panel: #2f343f;
  --border: #3e4451;
  --bg: linear-gradient(160deg, #2a2f3a, #1f232b);
  --input-bg: #2b303b;
  --input-fg: var(--ink);
  --card-bg: #2b303b;
  --panel-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
}

:root[data-theme="light"] {
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 24px;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

.settings-layout {
  display: flex;
  gap: 16px;
}

.toc {
  flex: 0 0 160px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-self: flex-start;
  position: sticky;
  top: 16px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel);
  box-shadow: var(--panel-shadow);
}

.toc-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
}

.toc-heading {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.toc-links {
  display: grid;
  gap: 8px;
}

.toc a {
  color: var(--ink);
  text-decoration: none;
  font-size: 12px;
  padding: 4px 6px;
  border-radius: 8px;
}

.toc a:hover {
  background: var(--card-bg);
}

.sidebar-errors {
  margin-top: auto;
  border-radius: 10px;
  border: 1px solid #c0392b;
  background: rgba(192, 57, 43, 0.08);
  color: #c0392b;
  font-size: 11px;
  padding: 8px;
  white-space: pre-line;
}

.hidden {
  display: none;
}

.settings-main {
  flex: 1;
  display: grid;
  gap: 14px;
}

.title-block {
  margin-bottom: 16px;
}

.page-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.title {
  font-size: 26px;
  font-weight: 700;
}

.subtitle {
  font-size: 13px;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  box-shadow: var(--panel-shadow);
}

.panel-summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 12px;
}

.panel-summary::-webkit-details-marker {
  display: none;
}

.panel-caret {
  display: inline-flex;
  align-items: center;
  width: 16px;
  justify-content: center;
  color: var(--muted);
  font-weight: 700;
  font-family: "Segoe UI Symbol", "Apple Symbols", system-ui, sans-serif;
}

.panel-caret .caret-open {
  display: none;
}

.panel[open] .panel-caret .caret-open {
  display: inline;
}

.panel[open] .panel-caret .caret-closed {
  display: none;
}

.panel-body {
  margin-top: 12px;
}

.panel[open] .panel-summary {
  margin-bottom: 6px;
}

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

.row-actions {
  display: flex;
  gap: 8px;
}

.row-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: wrap;
}

h2 {
  margin: 0;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

.hint {
  font-size: 12px;
  text-transform: none;
  letter-spacing: 0;
  color: var(--muted);
}

.hint-accent {
  color: var(--accent);
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
}

input,
textarea,
select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--input-fg);
  font-family: inherit;
  font-size: 13px;
}

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

.inline {
  display: flex;
  gap: 8px;
}

button {
  font-family: inherit;
  border: none;
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

button:active {
  transform: translateY(1px);
}

.accent {
  background: var(--accent);
  color: #fff9f3;
  box-shadow: 0 8px 20px rgba(177, 77, 43, 0.2);
}

.ghost {
  background: transparent;
  border: 1px solid var(--border);
}

.status {
  font-size: 12px;
  color: var(--accent);
}

.tasks {
  display: grid;
  gap: 12px;
}

.task-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  display: grid;
  gap: 8px;
}

.api-keys {
  display: grid;
  gap: 12px;
}

.api-key-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  display: grid;
  gap: 8px;
}

.api-key-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.api-key-actions .delete,
.api-config-actions .delete,
.env-config-actions .delete,
.task-actions .delete {
  background: #c0392b;
  border-color: #c0392b;
  color: #fff6f2;
}

.api-configs {
  display: grid;
  gap: 12px;
}

.api-config-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  display: grid;
  gap: 8px;
}

.api-config-card.is-advanced .basic-only {
  display: none;
}

.api-config-card:not(.is-advanced) .advanced-only {
  display: none;
}

.api-config-actions {
  display: flex;
  gap: 8px;
  justify-content: space-between;
  align-items: center;
}

.api-config-actions-left,
.api-config-actions-right {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.env-configs {
  display: grid;
  gap: 12px;
}

.env-config-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  display: grid;
  gap: 8px;
}

.env-config-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.profiles {
  display: grid;
  gap: 12px;
}

.profile-card {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  display: grid;
  gap: 8px;
}

.profile-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

.profile-actions .delete {
  background: #c0392b;
  border-color: #c0392b;
  color: #fff6f2;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]),
  :root[data-theme="system"] {
    --ink: #abb2bf;
    --muted: #8b93a5;
    --accent: #61afef;
    --panel: #2f343f;
    --border: #3e4451;
    --bg: linear-gradient(160deg, #2a2f3a, #1f232b);
    --input-bg: #2b303b;
    --input-fg: var(--ink);
    --card-bg: #2b303b;
    --panel-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

.task-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

@media (max-width: 720px) {
  .settings-layout {
    flex-direction: column;
  }

  .toc {
    width: 100%;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}