:root {
  --bg: var(--tg-theme-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #1a1a1a);
  --hint: var(--tg-theme-hint-color, #999999);
  --link: var(--tg-theme-link-color, #2481cc);
  --button: var(--tg-theme-button-color, #2481cc);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f4f4f5);
  --border: #e5e5e5;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

#app {
  display: flex;
  min-height: 100vh;
}

#sidebar {
  width: 220px;
  flex-shrink: 0;
  background: var(--secondary-bg);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#workspace-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--hint);
  padding: 4px 8px;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.sidebar-section h2 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--hint);
  margin: 4px 8px;
}

#project-list,
#note-list {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
}

#project-list li,
#note-list li {
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

#project-list li.active,
#project-list li:hover,
#note-list li.active,
#note-list li:hover {
  background: rgba(36, 129, 204, 0.1);
}

.sidebar-add-btn,
.add-task-btn {
  background: none;
  border: 1px dashed var(--border);
  color: var(--link);
  padding: 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

#content {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
}

#empty-state {
  color: var(--hint);
  margin-top: 40px;
  text-align: center;
}

#project-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

#project-header h1 {
  font-size: 20px;
  margin: 0;
  flex: 1;
  outline: none;
}

#archive-project-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  color: var(--hint);
  font-size: 12px;
}

#tasks-panel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
}

.task-column {
  flex: 1;
  min-width: 200px;
}

.task-column h3 {
  font-size: 13px;
  color: var(--hint);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.task-list {
  list-style: none;
  margin: 0 0 8px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 24px;
}

.task-card {
  background: var(--secondary-bg);
  border-radius: 8px;
  padding: 8px 10px;
  cursor: pointer;
  font-size: 14px;
}

.creator-label {
  display: block;
  font-size: 11px;
  color: var(--hint);
  margin-top: 4px;
}

.task-card .priority-high { color: #d64545; }
.task-card .priority-normal { color: var(--link); }
.task-card .priority-low { color: var(--hint); }

#note-view {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
}

#note-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

#note-title-input {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-bottom: 1px solid var(--border);
  padding: 4px 0;
  background: transparent;
  color: var(--text);
}

#delete-note-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  cursor: pointer;
  color: #d64545;
  font-size: 12px;
}

#note-content-input {
  flex: 1;
  min-height: 300px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  font-family: inherit;
  font-size: 14px;
  resize: vertical;
  background: var(--bg);
  color: var(--text);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 10;
}

.modal-content {
  background: var(--bg);
  width: 100%;
  max-width: 480px;
  border-radius: 12px 12px 0 0;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.modal-content input,
.modal-content textarea,
.modal-content select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
}

.modal-content textarea {
  min-height: 80px;
  resize: vertical;
}

.modal-actions {
  display: flex;
  justify-content: space-between;
}

.modal-actions button {
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  font-size: 14px;
}

#task-save-btn {
  background: var(--button);
  color: var(--button-text);
}

#task-delete-btn {
  background: none;
  color: #d64545;
}

.modal-content h2 {
  font-size: 16px;
  margin: 0;
}

#prompt-modal-ok-btn {
  background: var(--button);
  color: var(--button-text);
}

#prompt-modal-cancel-btn {
  background: none;
  color: var(--hint);
}