/* ============================================================
   Synaptyx — App Shell layout (clean rebuild)
   ============================================================
   Pure design-system layout for the main console screen.
   Reads tokens only; no legacy var aliases, no inline styles,
   no duplicate class sets. Namespace: `app-`.
   ============================================================ */

.app {
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--bg-canvas);
  color: var(--fg-primary);
  overflow: hidden;
}

/* Default icon size — any .ic without a more specific contextual rule
   falls back to 16px instead of the SVG intrinsic 300×150. */
.ic { width: 16px; height: 16px; flex-shrink: 0; }
.sx-badge .ic { width: 13px; height: 13px; }

/* ─── TOPBAR ─────────────────────────────────────────────────── */
.app-topbar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 56px;
  padding: 0 var(--space-4);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
}
.app-brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex-shrink: 0;
}
.app-brand__mark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 1rem;
  letter-spacing: -0.01em;
  color: var(--fg-primary);
}
.app-brand__mark svg { width: 22px; height: 22px; }
.app-brand__page { color: var(--fg-muted); }

.app-topbar__stats {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-left: var(--space-2);
}
.app-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
  padding: 0 var(--space-3);
  border-left: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.app-stat:first-child { border-left: 0; }
.app-stat__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tr-meta-upper);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.app-stat__value {
  font-family: var(--font-mono);
  font-size: var(--fz-meta);
  font-weight: var(--fw-medium);
  color: var(--fg-primary);
  font-variant-numeric: tabular-nums;
}
.app-stat__value--ok   { color: var(--success); }
.app-stat__value--warn { color: var(--warning); }

.app-topbar__spacer { flex: 1; }
.app-topbar__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Command-palette search trigger */
.app-search {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 32px;
  padding: 0 var(--space-2) 0 var(--space-3);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2);
  color: var(--fg-muted);
  font-size: var(--fz-meta);
  cursor: pointer;
  transition: border-color var(--dur-hover), color var(--dur-hover);
}
.app-search:hover { border-color: var(--border-strong); color: var(--fg-secondary); }
.app-search svg { width: 14px; height: 14px; }
.app-search__kbd { display: inline-flex; gap: 2px; margin-left: var(--space-2); }

/* Primary nav (segmented, icon + label) */
.app-nav { display: flex; align-items: center; gap: 2px; }
.app-nav__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 32px;
  padding: 0 var(--space-3);
  background: transparent;
  border: 0;
  border-radius: var(--radius-2);
  color: var(--fg-secondary);
  font-family: var(--font-body);
  font-size: var(--fz-meta);
  font-weight: var(--fw-medium);
  cursor: pointer;
  transition: background var(--dur-hover), color var(--dur-hover);
}
.app-nav__item svg { width: 15px; height: 15px; }
/* Icon-only by default; only the active item carries its label. Never overflows. */
.app-nav__label { display: none; }
.app-nav__item[aria-current="page"] .app-nav__label { display: inline; }
.app-nav__item:hover { background: var(--bg-surface-2); color: var(--fg-primary); }
.app-nav__item[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent);
}

/* Stack status pill */
.app-stack {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  height: 32px;
  padding: 0 var(--space-3);
  background: var(--bg-surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--fz-meta);
  color: var(--fg-secondary);
}

/* ─── MAIN GRID ──────────────────────────────────────────────── */
.app-main {
  display: grid;
  grid-template-columns: 384px 1fr;
  min-height: 0;
  overflow: hidden;
}
.app-rail {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-4);
  overflow-y: auto;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-canvas);
}

/* Rail panel = sx-card with a tighter rhythm */
.app-panel { display: flex; flex-direction: column; }
.app-panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-subtle);
}
.app-panel__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.app-panel__title svg { width: 15px; height: 15px; color: var(--fg-muted); }
.app-panel__tools { display: flex; align-items: center; gap: var(--space-2); }

/* ─── HOST / SESSION LISTS ───────────────────────────────────── */
.app-list { list-style: none; margin: 0; padding: var(--space-2); display: flex; flex-direction: column; gap: 2px; }

.app-host {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-2);
  cursor: pointer;
  transition: background var(--dur-hover);
}
.app-host:hover { background: var(--bg-surface-2); }
.app-host[aria-selected="true"] { background: var(--accent-soft); }
.app-host__body { min-width: 0; }
.app-host__name {
  font-family: var(--font-mono);
  font-size: var(--fz-mono-sm);
  color: var(--fg-primary);
  font-weight: var(--fw-medium);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-host__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-host__count {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  font-variant-numeric: tabular-nums;
}

.app-sess {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-2);
  cursor: pointer;
  transition: background var(--dur-hover);
}
.app-sess:hover { background: var(--bg-surface-2); }
.app-sess[aria-selected="true"] { background: var(--accent-soft); box-shadow: inset 2px 0 0 var(--accent); }
.app-sess__body { min-width: 0; }
.app-sess__title {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--fz-meta);
  color: var(--fg-primary);
  font-weight: var(--fw-medium);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-sess__id { font-family: var(--font-mono); }
.app-sess__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.app-sess__cost {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-secondary);
  font-variant-numeric: tabular-nums;
}

/* ─── SPAWN FORM ─────────────────────────────────────────────── */
.app-spawn { display: flex; flex-direction: column; gap: var(--space-3); padding: var(--space-4); }
.app-spawn__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.app-spawn details { border-top: 1px solid var(--border-subtle); padding-top: var(--space-3); }
.app-spawn summary {
  display: flex; align-items: center; gap: var(--space-2);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fz-meta);
  color: var(--fg-muted);
  list-style: none;
  user-select: none;
}
.app-spawn summary::-webkit-details-marker { display: none; }
.app-spawn summary svg { width: 13px; height: 13px; transition: transform var(--dur-focus); }
.app-spawn details[open] summary svg { transform: rotate(90deg); }
.app-spawn details .app-spawn__inner { display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-3); }

/* ─── VIEWER ─────────────────────────────────────────────────── */
.app-viewer {
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 0;
  background: var(--bg-canvas);
}
.app-viewer__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}
.app-viewer__id { display: flex; flex-direction: column; gap: 2px; flex: 1 1 300px; min-width: 0; }
.app-viewer__id-row { display: flex; align-items: center; gap: var(--space-2); }
.app-viewer__callsign {
  font-family: var(--font-mono);
  font-size: var(--fz-mono-md);
  font-weight: var(--fw-medium);
  color: var(--fg-primary);
}
.app-viewer__meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.app-viewer__meta-item { display: inline-flex; align-items: center; gap: var(--space-2); }
.app-viewer__meta-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tr-meta-upper);
  text-transform: uppercase;
  color: var(--fg-muted);
}
.app-viewer__meta-val {
  font-family: var(--font-mono);
  font-size: var(--fz-meta);
  color: var(--fg-secondary);
}
.app-viewer__actions { margin-left: auto; display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3); }

.app-viewer__body { min-height: 0; overflow: hidden; padding: var(--space-5); }

/* Terminal transcript */
.app-term {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--term-bg);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-3);
  overflow: hidden;
}
.app-term__head {
  display: flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid color-mix(in srgb, var(--term-fg) 14%, transparent);
}
.app-term__dot { width: 10px; height: 10px; border-radius: 50%; }
.app-term__title {
  font-family: var(--font-mono);
  font-size: 11px;
  color: color-mix(in srgb, var(--term-fg) 65%, transparent);
  margin-left: var(--space-2);
}
.app-term__body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fz-mono-sm);
  line-height: 1.65;
  color: var(--term-fg);
}
.app-term__line { white-space: pre-wrap; word-break: break-word; }
.app-term__prompt { color: var(--accent); }
.app-term__muted  { color: color-mix(in srgb, var(--term-fg) 55%, transparent); }
.app-term__ok     { color: var(--success); }
.app-term__warn   { color: var(--warning); }
.app-term__user   { color: var(--info); }
.app-term__cursor {
  display: inline-block;
  width: 8px; height: 1em;
  background: var(--term-cursor);
  vertical-align: text-bottom;
  animation: app-blink 1.1s steps(2, start) infinite;
}
@keyframes app-blink { 50% { opacity: 0; } }

/* ─── FOOTER ─────────────────────────────────────────────────── */
.app-foot {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 44px;
  padding: 0 var(--space-5);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
}
.app-foot__spacer { flex: 1; }
.app-foot__controls { display: flex; align-items: center; gap: var(--space-3); }

/* Theme toggle (segmented) */
.app-theme {
  display: inline-flex;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-2);
  padding: 2px;
  gap: 2px;
}
.app-theme button {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 24px;
  background: transparent; border: 0;
  border-radius: var(--radius-1);
  color: var(--fg-muted);
  cursor: pointer;
  transition: background var(--dur-hover), color var(--dur-hover);
}
.app-theme button svg { width: 15px; height: 15px; }
.app-theme button[aria-pressed="true"] { background: var(--bg-elevated); color: var(--fg-primary); }

/* Profile + bell triggers */
.app-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 32px; height: 32px;
  background: transparent; border: 0;
  border-radius: var(--radius-2);
  color: var(--fg-secondary);
  cursor: pointer;
  position: relative;
  transition: background var(--dur-hover), color var(--dur-hover);
}
.app-icon-btn:hover { background: var(--bg-surface-2); color: var(--fg-primary); }
.app-icon-btn svg { width: 17px; height: 17px; }
.app-icon-btn__badge {
  position: absolute; top: 4px; right: 4px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid var(--bg-surface);
}

/* Toggle row helper (sentence-case label + checkbox) */
.app-check-row { display: inline-flex; align-items: center; gap: var(--space-2); cursor: pointer; }
.app-check-row span { font-size: var(--fz-meta); color: var(--fg-secondary); }

/* ─── RESPONSIVE TOPBAR ──────────────────────────────────────── */
/* Drop the search caption, then the fleet-stat tiles, as room runs out. */
@media (max-width: 1180px) {
  .app-search span:not(.app-search__kbd) { display: none; }
  .app-search__kbd { margin-left: 0; }
  .app-topbar__stats { display: none; }
}

/* Scrollbars inside rail/term inherit the token scrollbar styling */