:root {
  --bg: #ffffff;
  --sidebar: #fafafa;
  --text: #202020;
  --muted: #808080;
  --line: #ececec;
  --hover: #f3f3f3;
  --accent: #db4c3f;
  --accent-soft: #fdeceb;
  --done: #a0a0a0;
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1e1e1e;
    --sidebar: #282828;
    --text: #e8e8e8;
    --muted: #9a9a9a;
    --line: #353535;
    --hover: #2e2e2e;
    --accent: #e8665a;
    --accent-soft: #3a2725;
    --done: #777;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

button { font: inherit; color: inherit; cursor: pointer; }
input, textarea { font: inherit; color: inherit; }

.app { display: flex; height: 100%; }

/* Sidebar */
.sidebar {
  width: 260px;
  flex-shrink: 0;
  background: var(--sidebar);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  padding: 16px 10px;
}
.sidebar-head h1 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 4px 10px 10px;
}
.project-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; flex: 1; }
.project-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  user-select: none;
}
.project-list li:hover { background: var(--hover); }
.project-list li.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.project-list li.drop-target { outline: 2px dashed var(--accent); }
.project-list .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); flex-shrink: 0; opacity: .7; }
.project-list .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.project-list .count { color: var(--muted); font-size: 12px; font-weight: 400; }

.add-project input {
  width: 100%;
  margin-top: 8px;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  background: transparent;
}
.add-project input:focus { outline: none; border-color: var(--line); background: var(--bg); }
.sidebar-foot { display: flex; gap: 14px; padding: 12px 10px 0; border-top: 1px solid var(--line); margin-top: 10px; }

/* Main */
.main { flex: 1; display: flex; min-width: 0; }
.content { flex: 1; min-width: 0; overflow-y: auto; padding: 28px 40px 80px; position: relative; }
.content > * { max-width: 760px; margin-left: auto; margin-right: auto; }
.main-head { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; position: relative; }
.main-head h2 { flex: 1; font-size: 22px; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.icon-btn { background: none; border: 0; font-size: 18px; padding: 4px 8px; border-radius: var(--radius); color: var(--muted); }
.icon-btn:hover { background: var(--hover); color: var(--text); }
.menu-btn { display: none; }

.dropdown {
  position: absolute;
  right: 0;
  top: 36px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,.12);
  z-index: 10;
  min-width: 170px;
  padding: 4px;
}
.dropdown button { display: block; width: 100%; text-align: left; background: none; border: 0; padding: 7px 10px; border-radius: 4px; }
.dropdown button:hover { background: var(--hover); }

.danger { color: var(--accent) !important; }
.link-btn { background: none; border: 0; padding: 0; color: var(--muted); text-decoration: underline; text-underline-offset: 2px; }
.link-btn:hover { color: var(--text); }

.empty { color: var(--muted); text-align: center; padding-top: 80px; }

/* Add task */
.add-task {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding: 8px 2px;
}
.add-task .plus { color: var(--accent); font-size: 18px; width: 20px; text-align: center; }
.add-task input { flex: 1; min-width: 0; border: 0; background: transparent; padding: 6px 0; }
.add-task input:focus { outline: none; }

/* Tasks */
.task-list { list-style: none; margin: 0; padding: 0; }
.task { border-bottom: 1px solid var(--line); border-radius: var(--radius); transition: background .1s; }
.task.drop-target { background: var(--accent-soft); outline: 2px dashed var(--accent); outline-offset: -2px; }
.task-row { display: flex; align-items: center; gap: 10px; padding: 10px 2px; cursor: pointer; }
.task-row:hover .task-title { color: var(--accent); }
.check {
  width: 20px; height: 20px;
  border-radius: 50%;
  border: 2px solid var(--muted);
  background: transparent;
  flex-shrink: 0;
  padding: 0;
  position: relative;
}
.check:hover { border-color: var(--accent); }
.check:hover::after, .task.done .check::after {
  content: "✓";
  position: absolute;
  inset: 0;
  font-size: 12px;
  line-height: 16px;
  text-align: center;
  color: var(--accent);
}
.task.done .check { background: var(--accent); border-color: var(--accent); }
.task.done .check::after { color: #fff; }
.task-title { flex: 0 1 auto; margin-right: auto; word-break: break-word; }
.task.done .task-title { color: var(--done); text-decoration: line-through; }
.file-badge { color: var(--muted); font-size: 12px; white-space: nowrap; }

.task-details { padding: 0 2px 14px 32px; display: flex; flex-direction: column; gap: 8px; }
.edit-title, .edit-notes {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 9px;
  background: var(--bg);
  resize: vertical;
}
.edit-title { font-weight: 600; }
.edit-title:focus, .edit-notes:focus { outline: none; border-color: var(--accent); }

.files { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.files li {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--hover);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 6px 4px 8px;
  max-width: 100%;
}
.files a { color: var(--text); text-decoration: none; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }
.files a:hover { text-decoration: underline; }
.files .size { color: var(--muted); font-size: 12px; }
.files .remove { background: none; border: 0; color: var(--muted); padding: 0 2px; font-size: 14px; }
.files .remove:hover { color: var(--accent); }

.dropzone {
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
  padding: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.task.drop-target .dropzone { border-color: var(--accent); color: var(--accent); }
.details-actions { display: flex; justify-content: flex-end; }

.hint { color: var(--muted); padding: 14px 2px; margin: 0; }

.completed-toggle {
  margin-top: 26px;
  background: none;
  border: 0;
  padding: 6px 2px;
  color: var(--muted);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}
.completed-toggle .chev { display: inline-block; transition: transform .15s; }
.completed-toggle[aria-expanded="true"] .chev { transform: rotate(90deg); }
.completed-toggle .count { font-weight: 400; }

/* Mobile */
@media (max-width: 720px) {
  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    transform: translateX(-100%);
    transition: transform .2s;
  }
  .sidebar.open { transform: none; box-shadow: 2px 0 16px rgba(0,0,0,.15); }
  .menu-btn { display: inline-block; }
  .content { padding: 16px 16px 60px; }
  .task-details { padding-left: 0; }
}

/* Sync */
.sync-status {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 6px 10px;
  border: 0;
  border-radius: var(--radius);
  background: none;
  color: var(--muted);
  font-size: 12px;
  text-align: left;
}
.sync-status:hover { background: var(--hover); color: var(--text); }
.sync-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); flex-shrink: 0; }
.sync-status[data-status="synced"] .sync-dot { background: #3a9c5b; }
.sync-status[data-status="syncing"] .sync-dot { background: #d9a520; }
.sync-status[data-status="reconnect"] .sync-dot,
.sync-status[data-status="error"] .sync-dot,
.sync-status[data-status="disconnected"] .sync-dot { background: var(--accent); }

.banner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 10px 12px;
  margin-bottom: 14px;
}
.banner .text { flex: 1; min-width: 200px; }
.banner button {
  background: var(--accent);
  color: #fff;
  border: 0;
  border-radius: var(--radius);
  padding: 6px 12px;
  font-weight: 600;
}

/* All tasks, due dates, filter */
.all-dot { background: var(--text) !important; opacity: .45 !important; border-radius: 2px !important; }
.nav-list { flex: none; }
.sidebar-head h1 { margin-top: 18px; }

.due-filter {
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 6px;
  max-width: 150px;
}
.due-filter.active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

.add-task select {
  font: inherit;
  font-size: 13px;
  color: var(--muted);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 6px;
  max-width: 40%;
}

.task-row { flex-wrap: wrap; row-gap: 2px; }
.due { font-size: 12px; color: var(--muted); white-space: nowrap; }
.due.today { color: #3a9c5b; font-weight: 600; }
.due.overdue { color: var(--accent); font-weight: 600; }
.project-tag {
  font-size: 12px;
  color: var(--muted);
  background: var(--hover);
  border-radius: 4px;
  padding: 1px 6px;
  white-space: nowrap;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.project-tag:hover { color: var(--accent); }

.due-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; color: var(--muted); font-size: 13px; }
.due-row label { display: flex; align-items: center; gap: 8px; }
.edit-due {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px 8px;
}
.edit-due:focus { outline: none; border-color: var(--accent); }

.scrim { display: none; }
@media (max-width: 720px) {
  .scrim { display: block; position: fixed; inset: 0; z-index: 15; background: rgba(0,0,0,.3); }
  .due-filter { max-width: 120px; }
}

/* Wide screens: list on the left, selected task's details on the right */
.detail-panel {
  width: clamp(380px, 36vw, 560px);
  flex-shrink: 0;
  border-left: 1px solid var(--line);
  overflow-y: auto;
  padding: 24px 28px 60px;
}
.detail-panel.drop-target { background: var(--accent-soft); outline: 2px dashed var(--accent); outline-offset: -6px; }
.detail-panel .task-details { padding: 0; gap: 12px; }
.detail-panel .edit-title { font-size: 17px; }
.detail-panel .edit-notes { min-height: 240px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.panel-head .project-link { font-size: 13px; }
.panel-head .close { font-size: 22px; line-height: 1; }
.panel-empty { color: var(--muted); text-align: center; margin-top: 120px; padding: 0 20px; }

@media (min-width: 1100px) {
  .content { padding: 28px 32px 80px; }
  .content > * { max-width: 860px; margin-left: 0; }
  .task.selected { background: var(--accent-soft); }
  .task.selected .task-title { color: var(--accent); }
  .task-row { padding-left: 6px; padding-right: 6px; }
}

/* Project tabs: Tasks | Project info */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.tabs button {
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  padding: 6px 10px 8px;
  color: var(--muted);
  font-weight: 600;
}
.tabs button:hover { color: var(--text); }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }
.tabs .count { font-weight: 400; font-size: 12px; }

/* Project info */
.phase-bar { display: grid; grid-template-columns: repeat(6, 1fr); gap: 4px; margin-bottom: 24px; }
.phase-bar button {
  background: var(--hover);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 4px;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.phase-bar button:hover { border-color: var(--accent); color: var(--text); }
.phase-bar button.past { color: var(--text); }
.phase-bar button.current { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }

.info-section { margin-bottom: 26px; }
.info-section h3 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin: 0 0 10px;
}
.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px 14px; }
.field { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.field.wide { grid-column: 1 / -1; }
.field-label { font-size: 12px; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 9px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}
.field textarea { resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); }

@media (max-width: 720px) {
  .phase-bar { grid-template-columns: repeat(3, 1fr); }
  .info-grid { grid-template-columns: 1fr 1fr; }
}

/* Click a task's name to rename it in place */
.task-title { cursor: text; }
.task-title[contenteditable] { outline: none; color: var(--text) !important; box-shadow: 0 1px 0 var(--accent); }
.task > .task-details .edit-title { display: none; }