*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

:root {
  --bg: #0d0d0d;
  --surface: #1a1a1a;
  --surface-2: #242424;
  --border: #2a2a2a;
  --text: #e8e8e8;
  --muted: #888;
  --accent: #4caf82;
  --danger: #ff6b6b;
  --sidebar-w: 280px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  overscroll-behavior: none;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

input, textarea { user-select: text; -webkit-user-select: text; }

button { font: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent; }

/* ── layout ───────────────────────────────────────────────────── */

#app {
  display: flex;
  height: 100dvh;
}

#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
  background: var(--surface);
}

#sidebar header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: calc(14px + var(--safe-top)) calc(16px + var(--safe-right)) 14px calc(16px + var(--safe-left));
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  backdrop-filter: blur(20px);
}

#sidebar h1 { font-size: 1rem; font-weight: 600; color: var(--accent); letter-spacing: .05em; flex: 1; }

#btn-spawn, #btn-collapse {
  background: var(--border);
  color: var(--text);
  border: none;
  border-radius: 8px;
  width: 36px; height: 36px;
  font-size: 1.1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform .08s, background .15s;
}
#btn-spawn { background: var(--accent); color: #000; font-size: 1.4rem; font-weight: 600; }
#btn-spawn:active, #btn-collapse:active { transform: scale(.92); }

#btn-expand {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 12px);
  left: calc(env(safe-area-inset-left, 0px) + 12px);
  z-index: 50;
  width: 40px; height: 40px;
  padding: 0;
  background: rgba(36, 36, 36, .85);
  backdrop-filter: blur(10px);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 1.1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,.5);
  transition: transform .08s;
}
#btn-expand:active { transform: scale(.92); }

#session-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  padding: 8px 0;
}

.session-item {
  padding: 14px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background .1s;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) { .session-item:hover { background: rgba(255,255,255,.03); } }
.session-item:active { background: rgba(255,255,255,.06); }
.session-item.active { border-left-color: var(--accent); background: rgba(76,175,130,.08); }

.session-name { display: block; font-size: .9rem; font-weight: 500; }
.session-cwd  { display: block; font-size: .75rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Recent context summary (what's being worked on now). */
.session-summary {
  font-size: .75rem;
  color: var(--muted);
  line-height: 1.2;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  word-break: break-word;
  margin-top: 2px;
}

.empty { padding: 16px; color: var(--muted); font-size: .85rem; }

/* Delete (×) button on a card. Hidden by default. Revealed on hover for
   pointer devices, and when the list has .show-delete for touch devices
   (toggled by a long-press in app.js). */
.session-item { position: relative; }

/* Status indicator dot: colored by how recent the activity is. */
.session-status {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #555;
  box-shadow: 0 0 4px rgba(0,0,0,.4);
  z-index: 1;
}
.session-status-active { background: #4cd964; box-shadow: 0 0 6px rgba(76, 217, 100, .6); }
.session-status-recent { background: #5ac8fa; box-shadow: 0 0 6px rgba(90, 200, 250, .5); }
.session-status-stale  { background: #ffcc00; box-shadow: 0 0 6px rgba(255, 204, 0, .5); }
.session-status-idle   { background: #555; }

.session-delete {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 107, 107, 0.20);
  color: var(--text);
  font-size: 1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transform: scale(.7);
  transition: opacity .16s, transform .18s cubic-bezier(.2,.8,.2,1),
              width .18s cubic-bezier(.2,.8,.2,1), height .18s cubic-bezier(.2,.8,.2,1),
              background .15s, box-shadow .18s;
  z-index: 3;
}
.session-delete:hover { background: var(--danger); color: #fff; }
.session-delete:active { transform: scale(.92); background: var(--danger); color: #fff; }
@media (hover: hover) {
  .session-item:hover .session-delete { opacity: 1; pointer-events: auto; transform: scale(1); }
}

/* Long-press reveal: larger, bolder, with a soft red glow and a pop-in. */
.session-item.show-delete .session-delete {
  opacity: 1;
  pointer-events: auto;
  width: 40px;
  height: 40px;
  background: linear-gradient(180deg, #ff6b6b 0%, #e24a4a 100%);
  color: #fff;
  font-size: 1.45rem;
  font-weight: 300;
  box-shadow: 0 6px 16px rgba(255, 75, 75, .38),
              0 0 0 1px rgba(255, 255, 255, .10) inset,
              0 1px 0 rgba(255, 255, 255, .18) inset;
  animation: delete-pop .26s cubic-bezier(.34, 1.56, .64, 1) both;
}
.session-item.show-delete .session-delete:active {
  transform: scale(.92);
  box-shadow: 0 2px 8px rgba(255, 75, 75, .5),
              0 0 0 1px rgba(255, 255, 255, .12) inset;
}

@keyframes delete-pop {
  0%   { transform: scale(.4); opacity: 0; }
  60%  { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

/* Share (↗) button — same reveal pattern as delete, accent-colored, top-left. */
.session-share {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(76, 175, 130, 0.22);
  color: var(--text);
  font-size: 1rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transform: scale(.7);
  transition: opacity .16s, transform .18s cubic-bezier(.2,.8,.2,1),
              width .18s cubic-bezier(.2,.8,.2,1), height .18s cubic-bezier(.2,.8,.2,1),
              background .15s, box-shadow .18s;
  z-index: 3;
}
.session-share:hover { background: var(--accent); color: #000; }
.session-share:active { transform: scale(.92); background: var(--accent); color: #000; }
@media (hover: hover) {
  .session-item:hover .session-share { opacity: 1; pointer-events: auto; transform: scale(1); }
}
.session-item.show-delete .session-share {
  opacity: 1;
  pointer-events: auto;
  width: 40px;
  height: 40px;
  background: linear-gradient(180deg, #4caf82 0%, #2f8c63 100%);
  color: #04210f;
  font-size: 1.25rem;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(76, 175, 130, .38),
              0 0 0 1px rgba(255, 255, 255, .10) inset,
              0 1px 0 rgba(255, 255, 255, .18) inset;
  animation: delete-pop .22s cubic-bezier(.34, 1.56, .64, 1) both;
}
.session-item.show-delete .session-share:active {
  transform: scale(.92);
  box-shadow: 0 2px 8px rgba(76, 175, 130, .5),
              0 0 0 1px rgba(255, 255, 255, .12) inset;
}

/* Open-in-VS-Code button — same reveal pattern, blue accent, top-center. */
.session-vscode {
  position: absolute;
  top: 8px;
  left: calc(50% - 14px);
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 50%;
  background: rgba(80, 140, 200, 0.22);
  color: var(--text);
  font-family: ui-monospace, monospace;
  font-size: .85rem;
  font-weight: 600;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  opacity: 0;
  pointer-events: none;
  transform: scale(.7);
  transition: opacity .16s, transform .18s cubic-bezier(.2,.8,.2,1),
              width .18s cubic-bezier(.2,.8,.2,1), height .18s cubic-bezier(.2,.8,.2,1),
              left .18s cubic-bezier(.2,.8,.2,1),
              background .15s, box-shadow .18s;
  z-index: 3;
}
.session-vscode:hover { background: #4a8ec7; color: #fff; }
.session-vscode:active { transform: scale(.92); background: #4a8ec7; color: #fff; }
@media (hover: hover) {
  .session-item:hover .session-vscode { opacity: 1; pointer-events: auto; transform: scale(1); }
}
.session-item.show-delete .session-vscode {
  opacity: 1;
  pointer-events: auto;
  width: 40px;
  height: 40px;
  left: calc(50% - 20px);
  background: linear-gradient(180deg, #5a99cf 0%, #3475ad 100%);
  color: #fff;
  font-size: .85rem;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(74, 142, 199, .38),
              0 0 0 1px rgba(255, 255, 255, .10) inset,
              0 1px 0 rgba(255, 255, 255, .18) inset;
  animation: delete-pop .22s cubic-bezier(.34, 1.56, .64, 1) both;
}
.session-item.show-delete .session-vscode:active {
  transform: scale(.94);
  box-shadow: 0 2px 8px rgba(74, 142, 199, .5),
              0 0 0 1px rgba(255, 255, 255, .12) inset;
}

/* Share-link viewer mode: hide chrome, terminal goes full-screen, view-only. */
body.share-mode #sidebar,
body.share-mode #btn-expand,
body.share-mode #btn-spawn,
body.share-mode #keyboard-bar { display: none !important; }
body.share-mode #terminal-pane { padding-top: var(--safe-top); }

/* Toast (used by "Link copied" feedback). */
.toast {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 28px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(20, 20, 20, .92);
  color: #fff;
  padding: 10px 18px;
  border-radius: 22px;
  font-size: .88rem;
  z-index: 300;
  border: 1px solid rgba(255, 255, 255, .08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .45);
  animation: toast-in .2s cubic-bezier(.2, .8, .2, 1);
}
.toast.hide { opacity: 0; transition: opacity .25s; }
@keyframes toast-in {
  from { transform: translate(-50%, 14px); opacity: 0; }
  to   { transform: translate(-50%, 0);    opacity: 1; }
}

/* ── terminal pane ────────────────────────────────────────────── */

#terminal-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #000;
}

#no-session {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: .9rem;
}

#terminal-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

#terminal {
  flex: 1;
  min-height: 0;
  padding: 4px;
  overflow: hidden;
}

/* xterm sizes its own canvas; only force width so it fills the wrapper.
   Don't force height — xterm needs to control viewport height for scrolling. */
/* xterm + FitAddon set the canvas to exact pixel multiples of cell width.
   Forcing width:100% here stretches the canvas and misaligns box-drawing
   glyphs (rounded corners, lines, etc.), so don't override it. */

/* Touch scroll is driven from JS (setupTouchScroll in app.js): we hijack
   touchmove and call term.scrollLines() so the WebGL canvas and the scroll
   position stay perfectly in sync. Disable native pan to avoid double-scrolling. */
#terminal .xterm-viewport {
  touch-action: none !important;
  overflow-y: auto !important;
}

/* ── keyboard ─────────────────────────────────────────────────── */

.keyboard-bar {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 6px calc(6px + env(safe-area-inset-right, 0px)) calc(6px + env(safe-area-inset-bottom, 0px)) calc(6px + env(safe-area-inset-left, 0px));
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  align-items: center;
  overflow-x: hidden;
}

/* On a desktop (hover-capable mouse/trackpad with a fine pointer) the user
   has a real keyboard — hide the on-screen keyboard bar entirely. Phones
   and touch tablets keep it. */
@media (hover: hover) and (pointer: fine) {
  #keyboard-bar { display: none !important; }
}

.kbd-toggle {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: .9rem;
  white-space: nowrap;
  min-height: 38px;
  flex-shrink: 0;
}

.kbd-grid {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.kbd-key {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 4px;
  font-size: .85rem;
  font-family: ui-monospace, SFMono-Regular, monospace;
  min-height: 38px;
  min-width: 0;
  flex: 1;
  transition: transform .08s, background .12s;
}

.kbd-key:active { background: #3a3a3a; transform: scale(.94); }
.kbd-key.wide   { flex: 1; }

.kbd-native-input {
  flex: 1;
  min-width: 0;
  background: #2e2e2e;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 1rem;
  min-height: 38px;
}

.kbd-send {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 8px 16px;
  font-size: .9rem;
  font-weight: 600;
  min-height: 38px;
  flex-shrink: 0;
  cursor: pointer;
  transition: transform .08s;
}
.kbd-send:active { transform: scale(.94); }

/* ── spawn modal ──────────────────────────────────────────────── */

#spawn-modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

#spawn-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  width: min(380px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

#spawn-dialog h2 { font-size: 1rem; }

#spawn-dialog label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: .85rem;
  color: var(--muted);
}

#spawn-cwd {
  background: #2e2e2e;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 1rem;
  min-height: 44px;
}

#spawn-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

#spawn-cancel, #spawn-ok {
  border: none;
  border-radius: 8px;
  padding: 12px 20px;
  font-size: 1rem;
  min-height: 44px;
  transition: transform .08s;
}
#spawn-cancel:active, #spawn-ok:active { transform: scale(.96); }

#spawn-cancel { background: var(--border); color: var(--text); }
#spawn-ok     { background: var(--accent); color: #000; font-weight: 600; }

#spawn-workspace { font-size: .8rem; color: var(--muted); }
#spawn-workspace code { color: var(--text); background: #2e2e2e; padding: 2px 6px; border-radius: 4px; font-family: monospace; }

#spawn-suggestions { display: flex; flex-wrap: wrap; gap: 6px; max-height: 120px; overflow-y: auto; }

.dir-chip {
  background: #2e2e2e; color: var(--text); border: 1px solid var(--border);
  border-radius: 12px; padding: 4px 10px; font-size: .8rem; cursor: pointer;
}
.dir-chip:hover { border-color: var(--accent); }

#spawn-error { color: var(--danger); font-size: .85rem; padding: 8px; background: rgba(255,107,107,.1); border-radius: 4px; border: 1px solid rgba(255,107,107,.3); }

/* ── login modal ──────────────────────────────────────────────── */

#login-modal {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  display: flex; align-items: center; justify-content: center;
  z-index: 200;
  padding: 20px;
}
#login-dialog {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  width: min(360px, 90vw);
  display: flex; flex-direction: column; gap: 12px;
}
#login-dialog h2 { font-size: 1.1rem; color: var(--accent); }
.login-hint { font-size: .85rem; color: var(--muted); }
#login-token {
  background: #2e2e2e;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 1rem;
  font-family: ui-monospace, SFMono-Regular, monospace;
  min-height: 44px;
}
#login-ok {
  background: var(--accent);
  color: #000;
  border: none;
  border-radius: 8px;
  padding: 12px;
  font-size: 1rem;
  font-weight: 600;
  min-height: 44px;
}
#login-ok:active { transform: scale(.96); }
#login-error {
  color: var(--danger);
  font-size: .85rem;
  background: rgba(255,107,107,.1);
  border: 1px solid rgba(255,107,107,.3);
  padding: 8px;
  border-radius: 6px;
}

/* ── mobile ───────────────────────────────────────────────────── */

@media (max-width: 900px) {
  #sidebar {
    position: fixed;
    inset: 0;
    width: 100%;
    min-width: 0;
    z-index: 40;
    border-right: none;
  }
  #sidebar header h1 { font-size: 1.4rem; }
  #btn-collapse { display: none; }

  /* Header + button sized to match the title text */
  #btn-spawn {
    position: static;
    width: auto;
    height: 1.6rem;
    padding: 0 12px;
    border-radius: 8px;
    font-size: 1.2rem;
    line-height: 1;
    box-shadow: none;
  }

  #session-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: min-content;
    align-content: start;
    column-gap: 10px;
    row-gap: 6px;
    padding: 10px 14px 100px;
  }
  .session-item {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 14px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    gap: 4px;
    position: relative;
    overflow: hidden;
    transition: transform .12s, background .15s, border-color .15s;
    min-height: 120px;
  }
  .session-item:active {
    transform: scale(.97);
    background: rgba(255,255,255,.04);
  }
  .session-item.active {
    border-color: var(--accent);
    background: rgba(76,175,130,.10);
    border-left: 1px solid var(--accent);
  }
  .session-item.active::after {
    content: '';
    position: absolute;
    top: 8px; right: 8px;
    width: 6px; height: 6px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent);
  }
  .session-name {
    font-size: 1rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-word;
  }
  .session-cwd {
    font-size: .75rem;
    color: var(--muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* Prevent iOS auto-linkification (URLs/IPs in description) from
     hijacking taps that should open the session. Scope this to text spans —
     the .session-delete button must remain tappable. */
  .session-item > span { pointer-events: none; }

  /* JS-rendered cards use these classes */
  .session-title {
    font-size: .92rem;
    font-weight: 600;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    line-height: 1.2;
  }
  .session-status {
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
  }
  .session-summary {
    font-size: .78rem;
    color: #aaa;
    line-height: 1.3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    word-break: break-word;
  }
  .session-desc {
    font-size: .78rem;
    color: var(--muted);
    line-height: 1.3;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    word-break: break-word;
  }
  .session-meta {
    font-size: .65rem;
    color: var(--muted);
    opacity: .7;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
    margin-top: auto;
  }

  #terminal-pane {
    width: 100%;
    /* Reserve space at the top so the floating ☰ button (44px + 12px gap)
       doesn't overlap the terminal's first row. */
    padding-top: calc(var(--safe-top) + 60px);
  }

  #btn-expand { width: 44px; height: 44px; border-radius: 50%; }

  /* Bottom-sheet modal on phones */
  #spawn-modal { align-items: flex-end; padding: 0; }
  #spawn-dialog {
    width: 100%;
    max-width: none;
    border-radius: 18px 18px 0 0;
    padding: 12px 20px calc(20px + var(--safe-bottom));
    animation: sheet-up .28s cubic-bezier(.2,.8,.2,1);
  }
  #spawn-dialog::before {
    content: '';
    display: block;
    width: 36px; height: 4px;
    margin: 0 auto 14px;
    background: var(--border);
    border-radius: 2px;
  }
  #spawn-dialog h2 { font-size: 1.2rem; font-weight: 600; }
}

@keyframes sheet-up {
  from { transform: translateY(100%); }
  to   { transform: translateY(0); }
}