/* =========================================================================
   maestro web — design system
   Register: product (a tool; design serves the task).
   Identity: precise, calm, alive. Monospace-as-UI; signal-green = "alive".
   Theme: dark (default) + light, all via OKLCH custom-property tokens.
   ========================================================================= */

:root {
  /* ---- type ---- */
  --font-mono:
    ui-monospace, "SF Mono", "SFMono-Regular", "Cascadia Code", "JetBrains Mono",
    "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --font-sans:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;

  --fs-11: 0.6875rem;
  --fs-12: 0.75rem;
  --fs-13: 0.8125rem;
  --fs-14: 0.875rem;
  --fs-15: 0.9375rem;
  --fs-17: 1.0625rem;
  --fs-20: 1.25rem;

  /* ---- spacing ---- */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;

  /* ---- radii ----
     Terminal-native: crisp, near-square corners. Round dots (status, brand)
     use border-radius:50% directly and are unaffected; these tokens govern
     rectangles (buttons, inputs, cards, tags) and stay sharp on purpose. */
  --r-1: 2px;
  --r-2: 3px;
  --r-3: 4px;
  --r-pill: 3px;

  /* ---- sizing ---- */
  --row-h: 46px;
  --control-h: 30px;
  --tap: 40px;
  /* Height of the two top-of-pane bars (sidebar search + attach header) — shared
     so they line up across the split. */
  --bar-h: 34px;

  /* ---- motion ---- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 120ms;
  --dur: 180ms;
  --dur-slow: 240ms;

  /* ---- z-index scale ---- */
  --z-sticky: 10;
  --z-backdrop: 40;
  --z-modal: 50;
  --z-toast: 60;

  /* ---- color: dark (default) ---- */
  color-scheme: dark;

  --bg: oklch(0.178 0.012 256);
  --bg-grid: oklch(0.215 0.014 256);
  --surface: oklch(0.214 0.014 256);
  --surface-2: oklch(0.252 0.016 256);
  --surface-3: oklch(0.292 0.018 256);
  --border: oklch(0.318 0.018 256);
  --border-strong: oklch(0.4 0.022 256);

  --ink: oklch(0.945 0.006 256);
  --muted: oklch(0.722 0.014 256);
  --faint: oklch(0.58 0.014 256);

  /* signal green = "alive", primary action, focus, selection */
  --accent: oklch(0.83 0.16 152);
  --accent-strong: oklch(0.88 0.17 152);
  --accent-ink: oklch(0.2 0.03 256);
  --accent-tint: oklch(0.83 0.16 152 / 0.12);
  --accent-ring: oklch(0.83 0.16 152 / 0.55);

  --live: oklch(0.84 0.17 152);
  --live-glow: oklch(0.84 0.17 152 / 0.55);

  --danger: oklch(0.72 0.18 25);
  --danger-tint: oklch(0.72 0.18 25 / 0.14);
  --warn: oklch(0.82 0.14 85);

  --shadow-1: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow-2:
    0 12px 28px -8px oklch(0 0 0 / 0.6), 0 2px 8px oklch(0 0 0 / 0.4);
  --term-bg: oklch(0.158 0.012 256);
}

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

  --bg: oklch(0.985 0.003 256);
  --bg-grid: oklch(0.93 0.006 256);
  --surface: oklch(1 0 0);
  --surface-2: oklch(0.965 0.004 256);
  --surface-3: oklch(0.93 0.006 256);
  --border: oklch(0.892 0.008 256);
  --border-strong: oklch(0.82 0.012 256);

  --ink: oklch(0.26 0.014 256);
  --muted: oklch(0.47 0.016 256);
  --faint: oklch(0.62 0.016 256);

  --accent: oklch(0.6 0.15 151);
  --accent-strong: oklch(0.55 0.16 151);
  --accent-ink: oklch(0.99 0.01 152);
  --accent-tint: oklch(0.6 0.15 151 / 0.12);
  --accent-ring: oklch(0.6 0.15 151 / 0.5);

  --live: oklch(0.6 0.16 151);
  --live-glow: oklch(0.6 0.16 151 / 0.45);

  --danger: oklch(0.55 0.21 27);
  --danger-tint: oklch(0.55 0.21 27 / 0.1);
  --warn: oklch(0.66 0.15 75);

  --shadow-1: 0 1px 2px oklch(0.5 0.02 256 / 0.12);
  --shadow-2:
    0 16px 36px -12px oklch(0.4 0.03 256 / 0.28),
    0 2px 8px oklch(0.5 0.02 256 / 0.1);
  --term-bg: oklch(0.165 0.012 256);
}

/* Follow the OS when the user hasn't pinned a theme. */
@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;

    --bg: oklch(0.985 0.003 256);
    --bg-grid: oklch(0.93 0.006 256);
    --surface: oklch(1 0 0);
    --surface-2: oklch(0.965 0.004 256);
    --surface-3: oklch(0.93 0.006 256);
    --border: oklch(0.892 0.008 256);
    --border-strong: oklch(0.82 0.012 256);

    --ink: oklch(0.26 0.014 256);
    --muted: oklch(0.47 0.016 256);
    --faint: oklch(0.62 0.016 256);

    --accent: oklch(0.6 0.15 151);
    --accent-strong: oklch(0.55 0.16 151);
    --accent-ink: oklch(0.99 0.01 152);
    --accent-tint: oklch(0.6 0.15 151 / 0.12);
    --accent-ring: oklch(0.6 0.15 151 / 0.5);

    --live: oklch(0.6 0.16 151);
    --live-glow: oklch(0.6 0.16 151 / 0.45);

    --danger: oklch(0.55 0.21 27);
    --danger-tint: oklch(0.55 0.21 27 / 0.1);
    --warn: oklch(0.66 0.15 75);

    --shadow-1: 0 1px 2px oklch(0.5 0.02 256 / 0.12);
    --shadow-2:
      0 16px 36px -12px oklch(0.4 0.03 256 / 0.28),
      0 2px 8px oklch(0.5 0.02 256 / 0.1);
    --term-bg: oklch(0.165 0.012 256);
  }
}

/* ---------- reset / base ---------- */

* {
  box-sizing: border-box;
}

*:focus {
  outline: none;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  line-height: 1.45;
  font-feature-settings: "ss01", "cv01";
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* faint structural grid — terminal texture, not a CRT costume */
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px);
  background-size: 100% 64px, 64px 100%;
  background-position: center top;
  /* dim the grid via opacity on a fixed overlay would cost a node; bake it low instead */
}

#app {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 1px 5px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-1);
}

::selection {
  background: var(--accent-tint);
  color: var(--ink);
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

::placeholder {
  color: var(--faint);
  opacity: 1;
}

:focus-visible {
  outline: 2px solid var(--accent-ring);
  outline-offset: 2px;
  border-radius: var(--r-1);
}

/* ---------- buttons ----------
   Terminal-native: the brackets are the chrome. Default + primary wear
   [ brackets ]; ghost/icon drop them for quieter nav and single glyphs. */

.btn {
  appearance: none;
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  padding: 0 var(--sp-1);
  height: var(--control-h);
  min-height: var(--control-h);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 500;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  white-space: nowrap;
  transition:
    color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.btn::before {
  content: "[";
  color: var(--faint);
}

.btn::after {
  content: "]";
  color: var(--faint);
}

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

.btn:hover::before,
.btn:hover::after {
  color: var(--accent);
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  color: var(--accent);
  font-weight: 600;
}

.btn-primary::before,
.btn-primary::after {
  color: var(--accent);
}

.btn-primary:hover {
  background: var(--accent-tint);
}

/* Ghost: no brackets — quiet nav (back, disconnect, theme, kit) and icons. */
.btn-ghost {
  color: var(--muted);
}

.btn-ghost::before,
.btn-ghost::after {
  content: none;
}

.btn-ghost:hover {
  color: var(--ink);
  background: var(--surface-2);
}

.btn-icon {
  width: var(--control-h);
  padding: 0;
  font-size: var(--fs-15);
}

.btn-icon::before,
.btn-icon::after {
  content: none;
}

.btn-icon:hover {
  background: var(--surface-2);
}

/* ---------- app shell: sidebar + content ---------- */

/* Global app header: brand + app-level actions (spawn, theme toggle), spanning
   the full width above the split. */
.app-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex: 0 0 auto;
  padding: var(--sp-1) var(--sp-3);
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--surface) 82%, transparent);
  backdrop-filter: blur(8px);
}

/* Three-part header: brand (left), status (centered), actions (right). Equal
   flex on the outer two keeps the status group truly centered. */
.app-header .brand {
  flex: 1 1 0;
  min-width: 0;
  margin-right: 0;
}

.app-status {
  flex: 0 1 auto;
  display: flex;
  justify-content: center;
  min-width: 0;
  overflow: hidden;
}

.app-status .statusbar {
  border-bottom: 0;
  background: transparent;
  padding: 0;
  flex-wrap: nowrap;
}

.app-status .statusbar .spacer {
  display: none;
}

.app-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  flex: 1 1 0;
  justify-content: flex-end;
}

.app-shell {
  flex: 1 1 auto;
  min-height: 0;
}

/* Desktop: persistent two-pane split. Sidebar holds the session list; the
   content pane shows the welcome state or the attached terminal. */
@media (min-width: 860px) {
  .app-shell {
    display: grid;
    grid-template-columns:
      var(--sidebar-w, clamp(220px, 22vw, 320px)) minmax(0, 1fr);
  }
}

.sidebar {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  position: relative;
  background: color-mix(in oklab, var(--surface) 26%, var(--bg));
  border-right: 1px solid var(--border);
}

/* Drag-to-resize grip on the sidebar's right edge (desktop split only). */
.sidebar-resize {
  position: absolute;
  top: 0;
  right: -3px;
  width: 6px;
  height: 100%;
  cursor: col-resize;
  z-index: var(--z-sticky);
  touch-action: none;
}

.sidebar-resize:hover,
.sidebar-resize:active {
  background: var(--accent-ring);
}

@media (max-width: 859px) {
  .sidebar-resize {
    display: none;
  }
  .app-status {
    display: none;
  }
}

/* Sidebar's own slim header: just the session search (app-level actions live
   in the global top bar). */
/* The search input IS the header — it spans edge to edge, flush, with just a
   bottom rule for separation. No wrapper padding, no boxed border/radius. */
.sidebar-search {
  flex: 0 0 auto;
}

.sidebar-search .search {
  width: 100%;
  max-width: none;
  height: var(--bar-h);
  border: 0;
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  background: transparent;
}

.sidebar-search .search:hover {
  background: var(--surface-2);
  border-bottom-color: var(--border-strong);
}

.sidebar-search .search:focus {
  background: var(--surface-2);
  border-bottom-color: var(--accent);
  box-shadow: none;
}

.content {
  min-width: 0;
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}

.content-welcome {
  margin: auto;
  max-width: 48ch;
}

/* Off-screen home for parked-but-connected terminals. Kept in the DOM (not
   display:none) so the live WS keeps buffering into each terminal; on
   re-mount we fit + the scrollback is already there, so switching is instant. */
.conn-cache {
  position: fixed;
  left: -99999px;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- catalog ---------- */

.catalog {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 0;
}

.catalog-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--surface) 82%, transparent);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin-right: auto;
}

.brand-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 0 4px var(--live-glow);
  flex: 0 0 auto;
  animation: pulse 2.4s var(--ease-out) infinite;
}

.brand h1 {
  margin: 0;
  font-size: var(--fs-17);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand .blink {
  color: var(--accent);
  font-weight: 400;
  animation: blink 1.2s steps(1) infinite;
}

.catalog-actions {
  display: flex;
  flex: 1 1 280px;
  gap: var(--sp-2);
  align-items: center;
  justify-content: flex-end;
}

.search {
  flex: 1 1 200px;
  max-width: 340px;
  height: var(--control-h);
  padding: 0 var(--sp-3);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-2);
  color: var(--ink);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.search:hover {
  border-color: var(--border-strong);
}

.search:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

/* ---------- daemon / status bar ---------- */

.statusbar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--sp-2) var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  font-size: var(--fs-12);
  color: var(--muted);
}

.session-tally {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--ink);
  font-size: var(--fs-13);
}

.session-tally b {
  font-weight: 600;
}

.tally-live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--accent);
}

.tally-live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 6px var(--live-glow);
}

.statusbar .spacer {
  /* zero basis: claim leftover space without inflating the bar's min width */
  flex: 1 1 0;
  min-width: var(--sp-2);
}

.daemons {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--sp-2);
  align-items: center;
  min-width: 0;
}

.daemon-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 3px var(--sp-3) 3px var(--sp-2);
  font-size: var(--fs-12);
  color: var(--ink);
}

.daemon-chip::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--live);
  box-shadow: 0 0 5px var(--live-glow);
}

.daemon-empty {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
}

.daemon-empty::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}

/* ---------- session tree ---------- */

.tree {
  flex: 1 1 auto;
  overflow: auto;
  padding: var(--sp-1) 0 var(--sp-4);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.tree-folder {
  display: flex;
  flex-direction: column;
}

.tree-folder-header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  background: transparent;
  border: 0;
  width: 100%;
  text-align: left;
  height: 38px;
  padding-right: var(--sp-4);
  color: var(--muted);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  transition: color var(--dur-fast) var(--ease-out);
}

.tree-folder-header:hover {
  color: var(--ink);
}

.tree-folder-header .chevron {
  width: 16px;
  text-align: center;
  color: var(--faint);
  font-size: var(--fs-11);
  transition:
    transform var(--dur) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.tree-folder-header[aria-expanded="false"] .chevron {
  transform: rotate(-90deg);
}

.tree-folder-header:hover .chevron {
  color: var(--accent);
}

.folder-name {
  flex: 1 1 auto;
  color: var(--ink);
  font-size: var(--fs-14);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.folder-count {
  font-size: var(--fs-11);
  color: var(--muted);
  padding: 1px 8px;
  border-radius: var(--r-pill);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.tree-leaf {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  min-height: 30px;
  margin: 1px var(--sp-2);
  padding: 4px var(--sp-3);
  border-radius: var(--r-1);
  color: var(--ink);
  position: relative;
  transition:
    background var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

/* "Alive" reads as a faint wash on the row itself — no per-row status icon. */
.tree-leaf[data-status="running"] {
  background: color-mix(in oklab, var(--accent) 6%, transparent);
}

.tree-leaf:hover {
  background: var(--surface-2);
}

.tree-leaf[data-status="running"]:hover {
  background: color-mix(in oklab, var(--accent) 13%, var(--surface-2));
}

.tree-leaf:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 1px var(--accent-ring);
}

/* The session currently mounted in the content pane. */
.tree-leaf.is-active,
.tree-leaf.is-active[data-status="running"] {
  background: var(--accent-tint);
  box-shadow: inset 0 0 0 1px var(--accent-ring);
}

.tree-leaf.is-active .leaf-name {
  color: var(--ink);
}

/* Exited sessions recede: dimmed name + an "exited" badge carry status, so it's
   never the running tint's absence alone doing the work. */
.tree-leaf[data-status="dead"] {
  color: var(--muted);
}

.tree-leaf[data-status="dead"] .leaf-name {
  color: var(--muted);
  font-weight: 400;
}

.leaf-name {
  font-weight: 500;
  font-size: var(--fs-13);
  flex: 0 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaf-meta {
  font-size: var(--fs-11);
  color: var(--muted);
  margin-left: auto;
  padding-left: var(--sp-2);
  min-width: 0;
  flex: 0 1 auto;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: inline-flex;
  align-items: baseline;
  gap: var(--sp-2);
}

.leaf-daemon {
  color: var(--faint);
  flex: 0 0 auto;
}

.leaf-daemon::before {
  content: "@";
  opacity: 0.6;
}

.leaf-cmd {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.leaf-badge {
  font-size: var(--fs-11);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  padding: 1px 8px;
  flex: 0 0 auto;
}

.leaf-actions {
  position: absolute;
  right: var(--sp-1);
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  gap: 2px;
}

.leaf-act {
  background: var(--surface-3);
  color: var(--faint);
  border: 1px solid var(--border);
  border-radius: var(--r-1);
  width: 24px;
  height: 24px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-12);
  transition:
    color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

@media (hover: hover) {
  .leaf-actions {
    opacity: 0;
    transition: opacity var(--dur-fast) var(--ease-out);
  }
  .tree-leaf:hover .leaf-actions,
  .tree-leaf:focus-within .leaf-actions {
    opacity: 1;
  }
}

.leaf-clone:hover {
  color: var(--accent);
  background: var(--accent-tint);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
}

.leaf-kill:hover {
  color: var(--danger);
  background: var(--danger-tint);
  border-color: color-mix(in oklab, var(--danger) 40%, transparent);
}

/* ---------- empty / loading ---------- */

.empty {
  padding: var(--sp-5) var(--sp-4);
  color: var(--muted);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-sans);
}

.empty-glyph {
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: var(--r-3);
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  background: var(--surface);
}

.empty-title {
  color: var(--ink);
  font-size: var(--fs-15);
  font-family: var(--font-mono);
}

.empty-hint {
  font-size: var(--fs-13);
  max-width: 42ch;
}

.empty-hint kbd {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: var(--r-1);
  padding: 1px 6px;
  color: var(--ink);
}

.empty-actions {
  display: flex;
  gap: var(--sp-2);
  margin-top: var(--sp-2);
}

.empty.connecting .empty-glyph {
  color: var(--warn);
  animation: pulse 1.6s var(--ease-out) infinite;
}

/* ---------- attach view ---------- */

.attach {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg);
}

.attach-header {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  height: var(--bar-h);
  padding: 0 var(--sp-2);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

/* Compact controls so the bar hugs the title — no tall buttons. */
.attach-header .btn {
  height: 26px;
  min-height: 26px;
}

.attach-header .btn-icon {
  width: 26px;
}

.attach-header .back {
  font-size: var(--fs-15);
  width: 28px;
  height: 26px;
}

/* Desktop keeps the session list permanently in view, so the in-header "back"
   arrow is redundant — the sidebar is the nav. Mobile (single-pane) keeps it. */
@media (min-width: 860px) {
  .attach-header .back {
    display: none;
  }
}

.attach-header .disconnect {
  color: var(--faint);
}

.attach-header .disconnect:hover {
  color: var(--danger);
  background: var(--danger-tint);
  border-color: color-mix(in oklab, var(--danger) 40%, transparent);
}

.attach-title {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1 1 auto;
}

.attach-title .sid {
  color: var(--muted);
}

.attach-title .at-name {
  color: var(--ink);
  font-weight: 500;
}

.attach-title .at-cmd {
  color: var(--muted);
}

.attach-title .at-cmd::before {
  content: "·";
  margin: 0 6px;
  color: var(--faint);
}

.attach-title .at-host {
  color: var(--faint);
  margin-left: 6px;
}

.attach-title .at-host::before {
  content: "@";
  opacity: 0.6;
}

.attach-state {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--fs-12);
  padding: 2px var(--sp-2);
  border-radius: var(--r-pill);
  background: var(--surface-2);
  color: var(--muted);
  border: 1px solid var(--border);
  white-space: nowrap;
}

.attach-state::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.attach-state[data-state="connecting"] {
  color: var(--warn);
}

.attach-state[data-state="connecting"]::before {
  animation: pulse 1.2s var(--ease-out) infinite;
}

.attach-state[data-state="open"] {
  color: var(--accent);
}

.attach-state[data-state="open"]::before {
  box-shadow: 0 0 6px var(--live-glow);
}

.attach-state[data-state="closed"],
.attach-state[data-state="error"] {
  color: var(--danger);
}

.attach-body {
  flex: 1 1 auto;
  min-height: 0;
  padding: var(--sp-2);
  display: flex;
  overflow: hidden;
  background: var(--term-bg);
}

.attach-body .xterm {
  width: 100%;
  height: 100%;
}

/* xterm hard-codes overflow-y: scroll on its viewport — an always-on bar that
   (a) shows even with no scrollback and (b) makes FitAddon subtract its width,
   costing a column. Hide it entirely: scroll still works via wheel/touch/keys,
   and fit reclaims the full width. */
/* Higher specificity than xterm's own `.xterm .xterm-viewport` (which loads
   after this and would otherwise win the tie) so the always-on scrollbar
   reservation actually goes away. */
.attach-body .xterm .xterm-viewport {
  overflow-y: auto;
  scrollbar-width: none;
}

.attach-body .xterm .xterm-viewport::-webkit-scrollbar {
  width: 0;
  height: 0;
}

/* Mobile: full-bleed terminal — the desktop frame padding wastes space and the
   sub-cell remainder it left was triggering a stray scrollbar. */
@media (max-width: 859px) {
  .attach-body {
    padding: 0;
  }
}

.attach-status {
  margin: var(--sp-4);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-2);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: var(--fs-14);
  color: var(--muted);
}

.attach-status.status-error {
  border-color: color-mix(in oklab, var(--danger) 50%, var(--border));
  color: var(--danger);
}

/* ---------- modal ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: oklch(0.12 0.01 256 / 0.6);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
  z-index: var(--z-modal);
  animation: fade var(--dur) var(--ease-out);
}

@media (min-width: 600px) {
  .modal-backdrop {
    align-items: center;
    padding: var(--sp-6);
  }
}

.modal {
  background: var(--surface);
  border-radius: var(--r-3) var(--r-3) 0 0;
  border: 1px solid var(--border);
  width: 100%;
  max-width: 560px;
  max-height: 92vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-2);
  animation: sheet-up var(--dur-slow) var(--ease-out);
}

@media (min-width: 600px) {
  .modal {
    border-radius: var(--r-3);
    animation: pop var(--dur) var(--ease-out);
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3);
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  font-size: var(--fs-15);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}

.modal-header h2::before {
  content: "+";
  color: var(--accent);
  font-weight: 700;
}

.modal-body {
  padding: var(--sp-3);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.modal-body label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: var(--fs-12);
  color: var(--muted);
  letter-spacing: 0.01em;
}

.modal-body label.row-inline {
  flex-direction: row;
  align-items: center;
  gap: var(--sp-2);
  color: var(--ink);
  font-size: var(--fs-14);
  cursor: pointer;
}

.modal-body input[type="text"],
.modal-body input[type="search"],
.modal-body select {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--r-2);
  padding: 10px var(--sp-3);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-15);
  width: 100%;
  transition:
    border-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.modal-body input[type="text"]:hover,
.modal-body select:hover {
  border-color: var(--border-strong);
}

.modal-body input[type="text"]:focus,
.modal-body input[type="search"]:focus,
.modal-body select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.modal-body input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.worktree {
  border: 1px solid var(--border);
  border-radius: var(--r-2);
  padding: var(--sp-3);
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  background: color-mix(in oklab, var(--surface-2) 50%, transparent);
}

.worktree legend {
  padding: 0 6px;
  color: var(--ink);
  font-size: var(--fs-13);
}

.modal-actions {
  display: flex;
  gap: var(--sp-2);
  justify-content: flex-end;
  margin-top: var(--sp-2);
}

.form-error {
  color: var(--danger);
  margin: 0;
  font-size: var(--fs-13);
  min-height: 1.2em;
}

.form-error:not(:empty) {
  padding: var(--sp-2) var(--sp-3);
  background: var(--danger-tint);
  border-radius: var(--r-2);
}

/* ---------- directory autocomplete (NAP-329) ---------- */

.dir-ac {
  position: fixed;
  z-index: var(--z-toast); /* above the modal it completes within */
  margin: 0;
  padding: var(--sp-1);
  list-style: none;
  max-height: 280px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-2);
  box-shadow: var(--shadow-2);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

.dir-ac-item {
  padding: 6px var(--sp-2);
  border-radius: var(--r-1);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: var(--fs-14);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dir-ac-item:hover {
  background: var(--surface-2);
}

.dir-ac-item.is-active {
  background: var(--accent-tint);
  color: var(--ink);
}

.dir-ac-more {
  padding: 6px var(--sp-2);
  color: var(--faint);
  font-size: var(--fs-12);
  font-style: italic;
}

/* ---------- not-found ---------- */

.not-found {
  margin: auto;
  padding: var(--sp-5) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  align-items: center;
  text-align: center;
}

.not-found h1 {
  margin: 0;
  font-size: var(--fs-20);
}

.not-found p {
  margin: 0;
  color: var(--muted);
}

/* ---------- theme toggle ---------- */

.theme-toggle {
  position: relative;
  overflow: hidden;
}

.theme-toggle .sun,
.theme-toggle .moon {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  transition:
    transform var(--dur) var(--ease-out),
    opacity var(--dur) var(--ease-out);
}

.theme-toggle .moon {
  transform: translateY(0);
  opacity: 1;
}

.theme-toggle .sun {
  transform: translateY(120%);
  opacity: 0;
}

:root[data-theme="light"] .theme-toggle .moon {
  transform: translateY(-120%);
  opacity: 0;
}

:root[data-theme="light"] .theme-toggle .sun {
  transform: translateY(0);
  opacity: 1;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) .theme-toggle .moon {
    transform: translateY(-120%);
    opacity: 0;
  }
  :root:not([data-theme]) .theme-toggle .sun {
    transform: translateY(0);
    opacity: 1;
  }
}

/* ---------- keyframes ---------- */

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

@keyframes ripple {
  0% {
    transform: scale(1);
    opacity: 0.6;
  }
  70%,
  100% {
    transform: scale(2.4);
    opacity: 0;
  }
}

@keyframes blink {
  0%,
  50% {
    opacity: 1;
  }
  50.01%,
  100% {
    opacity: 0;
  }
}

@keyframes fade {
  from {
    opacity: 0;
  }
}

@keyframes sheet-up {
  from {
    transform: translateY(16px);
    opacity: 0;
  }
}

@keyframes pop {
  from {
    transform: scale(0.98);
    opacity: 0;
  }
}

/* ---------- responsive ---------- */

@media (max-width: 520px) {
  .brand h1 {
    font-size: var(--fs-15);
  }
  .catalog-actions {
    flex: 1 1 100%;
    flex-wrap: wrap;
    justify-content: stretch;
  }
  .search {
    flex: 1 1 100%;
    max-width: none;
    order: -1;
  }
  /* daemons drop to their own full-width wrapped line; no side overflow */
  .statusbar .spacer {
    display: none;
  }
  .daemons {
    flex: 1 1 100%;
    justify-content: flex-start;
  }
  .tree-leaf .leaf-actions {
    opacity: 1;
  }
}

/* Mobile: no room for a split, so show one pane at a time. The catalog route
   shows the session list full-width; opening a session swaps to the terminal
   (its header's ← returns to the list). The connection still lives in the pool,
   so returning to it is instant. */
@media (max-width: 859px) {
  .app-shell[data-route="catalog"] > .content {
    display: none;
  }
  .app-shell:not([data-route="catalog"]) > .sidebar {
    display: none;
  }
  .sidebar {
    border-right: 0;
  }
}

/* ---------- reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .brand-dot,
  [data-status="running"] .leaf-status::before,
  .tally-live::before {
    animation: none;
  }
}