/* ================================================================
   DESK — desk.css
   Full-screen focus overlay: top bar, workspace, dock
   ================================================================ */

/* -- Overlay shell ----------------------------------------------- */
#desk-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* -- Top bar ----------------------------------------------------- */
.desk-topbar {
  display: flex;
  align-items: center;
  height: 56px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  gap: 12px;
}
.desk-topbar-left {
  display: flex;
  align-items: center;
  min-width: 60px;
}
.desk-back-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 150ms, border-color 150ms, background 150ms;
  white-space: nowrap;
}
.desk-back-btn:hover {
  color: var(--text);
  border-color: var(--text-mid);
  background: var(--surface2);
}
.desk-topbar-center {
  flex: 1;
  min-width: 0;
  text-align: center;
}
.desk-task-title {
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: block;
}
.desk-topbar-right {
  display: flex;
  align-items: center;
  min-width: 60px;
  justify-content: flex-end;
  position: relative;
}

/* -- Timer ------------------------------------------------------- */
.desk-timer-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.desk-timer-ring {
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.desk-timer-progress {
  transition: stroke-dashoffset 1s linear;
}
.desk-timer-progress.flash {
  animation: desk-timer-flash 0.5s ease 4;
}
@keyframes desk-timer-flash {
  0% { stroke: var(--accent); }
  50% { stroke: var(--critical); }
  100% { stroke: var(--accent); }
}
.desk-timer-mode-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
}
.desk-timer-mode-btn:hover {
  color: var(--text);
}
.desk-timer-session {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-dim);
  white-space: nowrap;
  position: absolute;
  bottom: 2px;
  right: 16px;
}

/* -- Workspace --------------------------------------------------- */
.desk-workspace {
  flex: 1;
  position: relative;
  overflow: hidden;
}

/* -- Tool panels ------------------------------------------------- */
.desk-tool-panel {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  overflow-y: auto;
  padding: 24px;
}
.desk-tool-panel.active {
  display: flex;
}
.desk-tool-panel::-webkit-scrollbar {
  width: 4px;
}
.desk-tool-panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}
.desk-tool-placeholder {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
  margin-top: 40px;
}

/* -- Dock -------------------------------------------------------- */
.desk-dock {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  border-top: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  gap: 4px;
}
.desk-dock-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid transparent;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 12px;
  padding: 6px 16px;
  border-radius: 6px;
  cursor: pointer;
  transition: color 150ms, background 150ms, border-color 150ms;
  user-select: none;
}
.desk-dock-item:hover {
  color: var(--text-mid);
  background: var(--surface2);
}
.desk-dock-item.active {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-dim);
}
.desk-dock-icon {
  font-size: 16px;
  line-height: 1;
}

/* -- Notepad ----------------------------------------------------- */
.desk-notepad-header { display:flex; align-items:center; justify-content:space-between; padding:0 0 12px; border-bottom:1px solid var(--border); margin-bottom:0; flex-shrink:0 }
.desk-notepad-tabs { display:flex; gap:4px }
.desk-notepad-tab { background:none; border:1px solid var(--border); color:var(--text-dim); font-family:var(--mono); font-size:11px; padding:4px 12px; border-radius:4px; cursor:pointer }
.desk-notepad-tab.active { color:var(--accent); border-color:var(--accent); background:var(--accent-dim) }
.desk-notepad-status { font-family:var(--mono); font-size:11px; color:var(--text-dim) }
.desk-notepad-textarea { flex:1; width:100%; resize:none; background:transparent; color:var(--text); border:none; outline:none; padding:16px 0; font-family:var(--mono); font-size:13px; line-height:1.7 }
.desk-notepad-preview { flex:1; overflow-y:auto; padding:16px 0; font-family:var(--mono); font-size:13px; color:var(--text-mid); line-height:1.7 }

/* -- Subtasks ---------------------------------------------------- */
.desk-subtasks-header { display:flex; align-items:center; justify-content:space-between; padding:0 0 12px; border-bottom:1px solid var(--border); flex-shrink:0 }
.desk-subtasks-label { font-family:var(--mono); font-size:12px; color:var(--text-dim) }
.desk-subtasks-progress-wrap { display:flex; align-items:center; gap:8px }
.desk-subtasks-progress { width:80px; height:4px; background:var(--border); border-radius:2px; overflow:hidden }
.desk-subtasks-progress-bar { height:100%; background:var(--accent); border-radius:2px; transition:width 300ms ease; width:0 }
.desk-subtasks-count { font-family:var(--mono); font-size:11px; color:var(--text-dim) }
.desk-subtasks-list { flex:1; overflow-y:auto; padding:8px 0 }
.desk-subtask-row { display:flex; align-items:center; gap:10px; padding:10px 0; border-bottom:1px solid var(--border) }
.desk-subtask-row input[type="checkbox"] { accent-color:var(--accent); width:16px; height:16px; cursor:pointer }
.desk-subtask-title { flex:1; font-family:var(--mono); font-size:13px; color:var(--text) }
.desk-subtask-title.done { text-decoration:line-through; color:var(--text-dim) }
.desk-subtask-archive { background:none; border:none; color:var(--text-dim); font-size:14px; cursor:pointer; padding:4px }
.desk-subtask-archive:hover { color:var(--critical) }
.desk-subtask-input { width:100%; background:var(--surface); border:1px solid var(--border); border-radius:6px; color:var(--text); padding:10px 14px; font-family:var(--mono); font-size:12px; outline:none }
.desk-subtask-input:focus { border-color:var(--accent) }
.desk-subtasks-add { flex-shrink:0; padding-top:12px }
.desk-subtasks-empty { font-family:var(--mono); font-size:12px; color:var(--text-dim); text-align:center; padding:40px 0 }

/* -- Chat -------------------------------------------------------- */
.desk-chat-messages { flex:1; overflow-y:auto; padding:0; display:flex; flex-direction:column; gap:12px }
.desk-chat-msg { max-width:80%; padding:10px 14px; border-radius:10px; font-family:var(--mono); font-size:12px; line-height:1.6; word-wrap:break-word }
.desk-chat-msg.user { align-self:flex-end; background:var(--surface2); color:var(--text) }
.desk-chat-msg.assistant { align-self:flex-start; background:var(--surface); color:var(--text-mid); border:1px solid var(--border) }
.desk-chat-msg.assistant p { margin:0 0 0.5em }
.desk-chat-msg.assistant p:last-child { margin:0 }
.desk-chat-input-row { display:flex; gap:8px; padding-top:12px; border-top:1px solid var(--border); flex-shrink:0 }
.desk-chat-input { flex:1; background:var(--surface); border:1px solid var(--border); border-radius:6px; color:var(--text); padding:10px 14px; font-family:var(--mono); font-size:12px; outline:none }
.desk-chat-input:focus { border-color:var(--accent) }
.desk-chat-input:disabled { opacity:0.5; cursor:not-allowed }
.desk-chat-send { background:var(--accent); color:#000; border:none; border-radius:6px; padding:10px 16px; cursor:pointer; font-size:14px; font-weight:600 }
.desk-chat-send:hover { opacity:0.85 }
.desk-chat-send:disabled { opacity:0.4; cursor:not-allowed }
.desk-chat-empty { font-family:var(--mono); font-size:12px; color:var(--text-dim); text-align:center; padding:40px 0 }
.desk-chat-loading { font-family:var(--mono); font-size:11px; color:var(--text-dim); align-self:flex-start; padding:8px 14px }

/* -- Mobile tweaks ----------------------------------------------- */
@media (max-width: 640px) {
  .desk-topbar {
    height: 50px;
    padding: 0 10px;
    gap: 8px;
  }
  .desk-back-btn {
    padding: 8px 12px;
    min-height: 36px;
  }
  .desk-task-title {
    font-size: 14px;
  }
  .desk-dock {
    height: 52px;
    gap: 2px;
  }
  .desk-dock-item {
    padding: 8px 12px;
    min-height: 44px;
    font-size: 11px;
  }
  .desk-dock-icon {
    font-size: 18px;
  }
  .desk-tool-panel {
    padding: 16px;
  }
  .desk-notepad-textarea {
    font-size: 16px; /* prevent iOS zoom */
  }
  .desk-chat-input {
    font-size: 16px;
    min-height: 44px;
  }
  .desk-subtask-input {
    font-size: 16px;
    min-height: 44px;
  }
  .desk-subtask-row {
    padding: 12px 0;
    min-height: 44px;
  }
  .desk-timer-session {
    display: none; /* hide session text on mobile */
  }
}