/**
 * ade-faithful — self-hosted Letta ADE chrome (static, no build).
 * No Cloud dependency; tokens are ours.
 */
:root {
  --af-bg: #09090b;
  --af-bg-elevated: #18181b;
  --af-bg-surface: #27272a;
  --af-bg-input: #18181b;
  --af-border: #3f3f46;
  --af-border-subtle: #27272a;
  --af-text: #fafafa;
  --af-text-muted: #a1a1aa;
  --af-text-dim: #71717a;
  --af-accent: #7dd3fc;
  --af-accent-dim: rgba(125, 211, 252, 0.12);
  --af-sidebar-w: 220px;
  --af-radius: 8px;
  --af-radius-sm: 6px;
  --af-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: var(--af-font);
  background: var(--af-bg);
  color: var(--af-text);
  font-size: 14px;
  line-height: 1.5;
}

a {
  color: var(--af-accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

.af-muted { color: var(--af-text-muted); }
.af-small { font-size: 12px; }

/* Layout */
.af-layout {
  display: flex;
  min-height: 100vh;
}

.af-sidebar {
  width: var(--af-sidebar-w);
  flex-shrink: 0;
  background: var(--af-bg-elevated);
  border-right: 1px solid var(--af-border-subtle);
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
}

.af-brand {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--af-border-subtle);
}
.af-brand-mark {
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--af-text);
}
.af-brand-sub {
  font-size: 11px;
  font-weight: 500;
  color: var(--af-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.af-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1;
  min-height: 0;
}
.af-nav-link {
  display: block;
  padding: 8px 10px;
  border-radius: var(--af-radius-sm);
  color: var(--af-text-muted);
  font-size: 13px;
  font-weight: 500;
}
.af-nav-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--af-text);
  text-decoration: none;
}
.af-nav-link.is-active {
  background: var(--af-accent-dim);
  color: var(--af-accent);
}

.af-sidebar-agent {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--af-border-subtle);
}
.af-sidebar-label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--af-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.af-select.af-select-agent {
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--af-radius-sm);
  border: 1px solid var(--af-border);
  background: var(--af-bg-input);
  color: var(--af-text);
  font-size: 14px;
  font-family: inherit;
}

.af-api-badge {
  margin: 12px 0 0;
  font-size: 11px;
  color: var(--af-text-dim);
  word-break: break-all;
}
.af-api-badge span { color: var(--af-text-muted); }

.af-main {
  flex: 1;
  min-width: 0;
  padding: 24px 28px 48px;
}

.af-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 40;
  border: none;
  cursor: pointer;
}

.af-nav-toggle {
  display: none;
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: var(--af-radius-sm);
  border: 1px solid var(--af-border);
  background: var(--af-bg-surface);
  color: var(--af-text);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

@media (max-width: 768px) {
  .af-nav-toggle { display: inline-flex; }
  .af-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 50;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.35);
  }
  body.nav-open .af-sidebar { transform: translateX(0); }
  body.nav-open .af-backdrop { display: block; }
}

/* Typography */
.af-main h1 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}
.af-main h2 { font-size: 15px; font-weight: 600; margin: 0 0 12px; }

/* Forms */
.af-label { display: block; font-size: 13px; font-weight: 500; color: var(--af-text-muted); margin-bottom: 6px; }
.af-input, .af-select, textarea.af-input {
  width: 100%;
  max-width: 32rem;
  padding: 10px 12px;
  border-radius: var(--af-radius-sm);
  border: 1px solid var(--af-border);
  background: var(--af-bg-input);
  color: var(--af-text);
  font-family: inherit;
  font-size: 14px;
}
textarea.af-input { max-width: 42rem; min-height: 100px; resize: vertical; }
.af-input:focus, .af-select:focus, textarea.af-input:focus {
  outline: none;
  border-color: var(--af-accent);
  box-shadow: 0 0 0 1px var(--af-accent);
}

.af-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 14px;
  border-radius: var(--af-radius-sm);
  border: 1px solid var(--af-border);
  background: var(--af-bg-surface);
  color: var(--af-text);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
}
.af-btn:hover { background: #3f3f46; }
.af-btn-primary {
  background: #2563eb;
  border-color: #2563eb;
  color: #fff;
}
.af-btn-primary:hover { background: #1d4ed8; }
.af-btn-secondary {
  background: transparent;
  border-color: var(--af-border);
  color: var(--af-text-muted);
}
.af-btn-secondary:hover { color: var(--af-text); background: rgba(255,255,255,0.05); }
.af-btn-danger {
  background: #7f1d1d;
  border-color: #991b1b;
  color: #fecaca;
}
.af-btn-danger:hover { background: #991b1b; }

.af-panel {
  background: var(--af-bg-elevated);
  border: 1px solid var(--af-border-subtle);
  border-radius: var(--af-radius);
  padding: 16px 18px;
  margin-bottom: 20px;
}

.af-alert {
  padding: 12px 14px;
  border-radius: var(--af-radius-sm);
  margin-bottom: 16px;
  font-size: 13px;
}
.af-alert-danger {
  background: rgba(127, 29, 29, 0.35);
  border: 1px solid #991b1b;
  color: #fecaca;
}
.af-alert-success {
  background: rgba(22, 101, 52, 0.35);
  border: 1px solid #166534;
  color: #bbf7d0;
}

.af-list { list-style: none; padding: 0; margin: 0; }
.af-row {
  display: flex;
  gap: 8px;
  align-items: stretch;
  margin-bottom: 8px;
}
.af-row > a.af-btn { flex: 1; text-align: left; justify-content: flex-start; }

.af-check { display: inline-flex; align-items: center; gap: 6px; margin-right: 12px; margin-bottom: 8px; font-size: 13px; color: var(--af-text-muted); }
.af-check input { width: 16px; height: 16px; }

/* Dashboard cards */
.af-dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
  max-width: 56rem;
  margin-top: 20px;
}
.af-dash-card {
  display: block;
  padding: 16px 18px;
  border-radius: var(--af-radius);
  border: 1px solid var(--af-border-subtle);
  background: var(--af-bg-elevated);
  color: var(--af-text);
  font-weight: 500;
  transition: border-color 0.15s, background 0.15s;
}
.af-dash-card:hover {
  border-color: var(--af-border);
  background: var(--af-bg-surface);
  text-decoration: none;
}
.af-dash-card .af-muted { font-weight: 400; font-size: 12px; margin-top: 4px; display: block; }

/* Utilities */
.af-hidden { display: none !important; }
.af-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.af-stack { display: flex; flex-direction: column; gap: 12px; }
.af-stack-sm { display: flex; flex-direction: column; gap: 8px; }
.af-inline { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.af-spread { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 12px; }
.af-grow { flex: 1; min-width: 0; }
.af-mt { margin-top: 16px; }
.af-mt-lg { margin-top: 28px; }
.af-mb { margin-bottom: 12px; }
.af-field { margin-bottom: 14px; }
.af-hint { font-size: 12px; color: var(--af-text-dim); margin: 6px 0 0; }
.af-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--af-border);
  background: var(--af-bg-surface);
  color: var(--af-text-muted);
  font-size: 11px;
  font-weight: 500;
  vertical-align: middle;
}
.af-badge-accent {
  background: var(--af-accent-dim);
  border-color: transparent;
  color: var(--af-accent);
}
.af-alert-warn {
  background: rgba(120, 53, 15, 0.35);
  border: 1px solid #92400e;
  color: #fde68a;
}
.af-btn-sm { padding: 5px 10px; font-size: 12px; }
.af-btn:disabled, .af-btn[disabled] { opacity: 0.45; cursor: not-allowed; }
.af-input-sm { padding: 6px 10px; font-size: 13px; max-width: 280px; }
.af-input-wide, textarea.af-input-wide { max-width: 42rem; }
.af-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  max-width: 42rem;
}
@media (max-width: 640px) {
  .af-grid-2 { grid-template-columns: 1fr; }
}

/* Tabs */
.af-tabs {
  display: flex;
  flex-wrap: nowrap;
  gap: 2px;
  overflow-x: auto;
  border-bottom: 1px solid var(--af-border-subtle);
  margin-bottom: 16px;
  padding-bottom: 0;
}
.af-tab {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--af-text-muted);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}
.af-tab:hover { color: var(--af-text); }
.af-tab.is-active {
  color: var(--af-accent);
  border-bottom-color: var(--af-accent);
}
.af-tab-pane { display: none; }
.af-tab-pane.is-active { display: block; }

/* Cards / tool rows */
.af-card {
  background: var(--af-bg-elevated);
  border: 1px solid var(--af-border-subtle);
  border-radius: var(--af-radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}
.af-card-title { font-weight: 600; margin: 0 0 4px; }
.af-meta { font-size: 12px; color: var(--af-text-dim); }
.af-tools-scroll {
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--af-border-subtle);
  border-radius: var(--af-radius-sm);
  background: var(--af-bg);
}
.af-tool-group-header {
  padding: 8px 12px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--af-text-dim);
  background: var(--af-bg-elevated);
  border-bottom: 1px solid var(--af-border-subtle);
  position: sticky;
  top: 0;
  z-index: 1;
}
.af-tool-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--af-border-subtle);
}
.af-tool-row:last-child { border-bottom: none; }
.af-switch {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--af-accent);
}
.af-memory-card { margin-bottom: 14px; max-width: 42rem; }

/* Danger zone */
.af-danger {
  border: 1px solid #991b1b;
  border-radius: var(--af-radius);
  overflow: hidden;
  max-width: 42rem;
}
.af-danger-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 14px;
  background: rgba(127, 29, 29, 0.25);
  border-bottom: 1px solid #991b1b;
}
.af-danger-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fca5a5;
}
.af-danger-body { padding: 14px 16px; }
.af-name-chip {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--af-radius-sm);
  border: 1px solid var(--af-border);
  background: var(--af-bg);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  user-select: all;
}

/* Chat composer (non-Bootstrap) */
.af-composer {
  display: flex;
  gap: 8px;
  max-width: 56rem;
  margin-top: 8px;
}
.af-composer .af-input { flex: 1; max-width: none; }