/* ttrack — minimal mobile-first stylesheet. No framework. */

* { box-sizing: border-box; }

:root {
  --bg: #0f0f10;
  --panel: #1a1a1c;
  --panel-2: #141416;
  --border: #2a2a2c;
  --text: #e8e8e8;
  --muted: #888;
  --accent: #a78bfa;
  --accent-2: #c4b5fd;
  --danger: #e66;
  --success: #6ee2a0;
  --warn: #f0b072;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  -webkit-text-size-adjust: 100%;
}

/* ---------------------------------------------------------------- header */
header {
  padding: 1rem 1rem 0.75rem;
  border-bottom: 1px solid var(--border);
  max-width: 1100px;
  margin: 0 auto;
}
.header-brand {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.sidebar-toggle { display: none; }
@media (max-width: 900px) {
  .sidebar-toggle { display: inline-flex; align-items: center; justify-content: center; }
}
.header-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.75rem;
}
header h1 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}
header h1 #display-name {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.9em;
  margin-left: 0.4rem;
}
#today-date {
  color: var(--muted);
  font-size: 0.9rem;
}
.header-actions {
  display: flex;
  gap: 0.25rem;
}

.icon-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  font-size: 1.15rem;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 8px;
  cursor: pointer;
  line-height: 1;
  flex-shrink: 0;
}
.icon-btn:hover, .icon-btn:focus {
  background: var(--panel);
  border-color: var(--border);
  outline: none;
}

/* ------------------------------------------------------------------ main */
main.layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1rem;
  align-items: start;
}
.content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
}

/* --------------------------------------------------------------- sidebar */
.sidebar {
  position: sticky;
  top: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.6rem 0.5rem;
  display: flex;
  flex-direction: column;
}
.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.sidebar-section-label {
  padding: 0.6rem 0.6rem 0.25rem;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.sidebar-item {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  font: inherit;
  font-size: 0.92rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  text-align: left;
}
.sidebar-item:hover {
  background: var(--panel-2);
}
.sidebar-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.sidebar-item.active {
  background: rgba(167, 139, 250, 0.18);
  border-color: rgba(167, 139, 250, 0.45);
  color: var(--accent-2);
}
.sidebar-icon {
  width: 1.1rem;
  text-align: center;
  opacity: 0.85;
}
.folder-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.folder-count {
  color: var(--muted);
  font-size: 0.78rem;
  background: var(--panel-2);
  padding: 0.05rem 0.4rem;
  border-radius: 999px;
}
.sidebar-folder {
  position: relative;
}
.folder-actions {
  position: absolute;
  right: 0.45rem;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  gap: 0.1rem;
  background: var(--panel-2);
  padding: 0.05rem;
  border-radius: 6px;
}
.sidebar-folder:hover .folder-actions { display: inline-flex; }
.icon-btn-tiny {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.85rem;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 4px;
  line-height: 1;
}
.icon-btn-tiny:hover {
  background: var(--panel);
  color: var(--text);
}
.new-folder-form {
  padding: 0.25rem 0.4rem 0.5rem;
}
#new-folder-input {
  width: 100%;
  font: inherit;
  font-size: 0.85rem;
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--muted);
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
}
#new-folder-input:focus {
  outline: none;
  border-color: var(--accent);
  border-style: solid;
  color: var(--text);
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 40;
}
.sidebar-backdrop[hidden] { display: none; }

@media (max-width: 900px) {
  main.layout { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: 260px;
    z-index: 50;
    border-radius: 0;
    border-right: 1px solid var(--border);
    border-top: none;
    border-bottom: none;
    border-left: none;
    transform: translateX(-100%);
    transition: transform 180ms ease;
    overflow-y: auto;
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 32px rgba(0, 0, 0, 0.5);
  }
  .sidebar:not(.open) ~ .sidebar-backdrop { display: none !important; }
  body:has(.sidebar.open) .sidebar-backdrop { display: block; }
}

/* ---------------------------------------------------------- view header */
.view-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.view-header h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* -------------------------------------------------- today group headers */
.task-group-head {
  list-style: none;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.6rem 0.25rem 0.2rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.1rem;
}
.task-group-head.danger { color: var(--danger); }
.task-group-head.danger { border-bottom-color: rgba(230, 102, 102, 0.4); }
.group-count {
  color: var(--muted);
  font-size: 0.78rem;
}

/* ---------------------------------------------- task folder badge (Today) */
.task-folder-badge {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.05rem 0.5rem;
  color: var(--muted);
}

/* ----------------------------------------------------- combined input + mode */
.combo-form {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}
.combo-form input {
  flex: 1;
  font: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  min-height: 2.75rem;
}
.combo-form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
.combo-form[data-mode="search"] input {
  background: var(--panel-2);
}

.mode-toggle {
  font: inherit;
  width: 2.75rem;
  min-width: 2.75rem;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--accent);
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.mode-toggle:hover, .mode-toggle:focus {
  background: var(--panel);
  border-color: var(--accent);
  outline: none;
}
.combo-form[data-mode="new"] .mode-icon[data-mode="search"],
.combo-form[data-mode="search"] .mode-icon[data-mode="new"] {
  display: none;
}

.combo-preview {
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.3rem 0.6rem;
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: 6px;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}
.combo-preview[hidden] { display: none; }
.preview-title { color: var(--text); }
.preview-due {
  color: var(--accent-2);
  background: rgba(167, 139, 250, 0.1);
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
}
.preview-tag {
  color: var(--accent-2);
  background: rgba(167, 139, 250, 0.15);
  padding: 0.05rem 0.4rem;
  border-radius: 4px;
}

/* ------------------------------------------------------------ tag filters */
.tag-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}
.tag-filter-label {
  color: var(--muted);
  font-size: 0.85rem;
  margin-right: 0.25rem;
}
.tag-filter-chip {
  font: inherit;
  font-size: 0.85rem;
  padding: 0.25rem 0.6rem;
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent-2);
  border: 1px solid rgba(167, 139, 250, 0.4);
  border-radius: 999px;
  cursor: pointer;
}
.tag-filter-chip:hover {
  background: rgba(167, 139, 250, 0.25);
}

/* ------------------------------------------------------------ task list */
.task-list-wrap {
  display: flex;
  flex-direction: column;
}
.task-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.task {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color 120ms ease, background 120ms ease;
}
.task:hover {
  border-color: #3a3a3e;
}
.task.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent) inset;
}
.task.completed .task-title { text-decoration: line-through; color: var(--muted); }
.task.completed .task-check { color: var(--success); }
.task.overdue:not(.completed) .task-due { color: var(--danger); }

.task-check {
  font: inherit;
  font-size: 1.15rem;
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.task-check:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.task-body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.task-title {
  font-size: 0.98rem;
  word-break: break-word;
}
.task-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--muted);
}
.task-due {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.05rem 0.5rem;
}
.task-due.overdue {
  color: var(--danger);
  border-color: rgba(230, 102, 102, 0.5);
  background: rgba(230, 102, 102, 0.08);
}
.task-recur {
  background: rgba(167, 139, 250, 0.1);
  color: var(--accent-2);
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: 999px;
  padding: 0.05rem 0.5rem;
}

.tag-chip {
  font: inherit;
  font-size: 0.78rem;
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent-2);
  padding: 0.05rem 0.45rem;
  border: 1px solid rgba(167, 139, 250, 0.3);
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.4;
}
.tag-chip:hover {
  background: rgba(167, 139, 250, 0.3);
}

.task-actions {
  display: flex;
  gap: 0.15rem;
  opacity: 0.7;
}
.task-actions .icon-btn {
  width: 2rem;
  height: 2rem;
  font-size: 0.95rem;
}
.task:hover .task-actions { opacity: 1; }

/* ------------------------------------------------------------- empty state */
.empty-state {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  border: 1px dashed var(--border);
  border-radius: 10px;
}

/* ----------------------------------------------------------- bulk actions */
.bulk-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.25rem;
}

/* ------------------------------------------------------ buttons (shared) */
.btn-primary, .btn-ghost {
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 1.25rem;
  border-radius: 8px;
  cursor: pointer;
  border: 1px solid var(--border);
  min-height: 2.75rem;
}
.btn-primary {
  background: var(--accent);
  color: #1a1228;
  border-color: var(--accent);
}
.btn-primary:disabled { opacity: 0.5; cursor: wait; }
.btn-ghost {
  background: transparent;
  color: var(--text);
}
.btn-link {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  padding: 0.35rem 0.5rem;
  text-decoration: none;
}
.btn-link:hover { text-decoration: underline; color: var(--text); }

/* --------------------------------------------------------------- modal */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 50;
}
.modal.open { display: block; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}
.modal-panel {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(92vw, 480px);
  max-height: 92vh;
  overflow: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}
.modal-head h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.settings-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.settings-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.settings-form label > span {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.settings-form input,
.settings-form select {
  font: inherit;
  padding: 0.65rem 0.75rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 2.75rem;
  width: 100%;
}
.settings-form input:focus,
.settings-form select:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
.settings-form .two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.row-with-clear {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}
.row-with-clear input { flex: 1; }
.modal-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
  gap: 0.5rem;
}
.modal-actions-right {
  display: flex;
  gap: 0.5rem;
}

/* ------------------------------------------------ recurrence detail panel */
.recurrence-detail {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem;
  margin-top: 0.25rem;
}
.recurrence-detail label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.recurrence-detail label small {
  color: var(--muted);
  font-size: 0.75rem;
}
.recurrence-detail input[type="number"],
.recurrence-detail input[type="text"] {
  font: inherit;
  padding: 0.5rem;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 100%;
}
.weekday-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}
.weekday-pill {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}
.weekday-pill input { display: none; }
.weekday-pill span {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  background: var(--bg);
}
.weekday-pill input:checked + span {
  background: rgba(167, 139, 250, 0.2);
  border-color: var(--accent);
  color: var(--accent-2);
}

/* ------------------------------------------------------------- tag picker */
.tag-picker {
  position: absolute;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.4rem;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.6);
  z-index: 80;
  min-width: 180px;
  max-height: 300px;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.tag-picker[hidden] { display: none; }
.tag-pick-item {
  font: inherit;
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
}
.tag-pick-item:hover, .tag-pick-item:focus {
  outline: none;
  background: rgba(167, 139, 250, 0.15);
  border-color: rgba(167, 139, 250, 0.4);
}

/* --------------------------------------------------------- help modal grid */
.help-body { font-size: 0.93rem; }
.help-grid {
  display: grid;
  grid-template-columns: minmax(8rem, max-content) 1fr;
  gap: 0.5rem 1rem;
  margin: 0;
}
.help-grid dt {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  color: var(--accent-2);
}
.help-grid dd {
  margin: 0;
  color: var(--text);
}
.help-note {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.85rem;
}
.help-note code,
.help-body code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--panel-2);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
  color: var(--accent-2);
}

/* -------------------------------------------------------- chip input (edit) */
.tags-input {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.4rem 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 2.75rem;
  align-items: center;
  cursor: text;
}
.tags-input:focus-within {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}
.edit-tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.85rem;
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent-2);
  border: 1px solid rgba(167, 139, 250, 0.4);
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
}
.edit-tag-chip .chip-remove {
  background: transparent;
  border: none;
  color: var(--accent-2);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
  opacity: 0.7;
}
.edit-tag-chip .chip-remove:hover { opacity: 1; }
#edit-tag-input {
  flex: 1;
  min-width: 6rem;
  font: inherit;
  font-size: 0.95rem;
  background: transparent;
  border: none;
  color: var(--text);
  padding: 0.2rem;
  outline: none;
}

/* --------------------------------------------------------------- toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1.25rem;
  transform: translateX(-50%) translateY(2rem);
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  z-index: 100;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast[data-kind="err"] {
  border-color: var(--danger);
  color: #ffd0d0;
}

/* --------------------------------------------------------------- auth ui */
.auth-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.auth-overlay[hidden] { display: none; }

body.unauth main,
body.unauth header .icon-btn {
  visibility: hidden;
}

.auth-panel {
  width: 100%;
  max-width: 360px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
}
.auth-panel h2 {
  margin: 0 0 1rem 0;
  font-size: 1.25rem;
  text-align: center;
  letter-spacing: 0.02em;
}
.auth-panel p {
  margin: 0 0 1rem;
  color: var(--muted);
  text-align: center;
}
.auth-cta {
  display: inline-block;
  text-align: center;
  text-decoration: none;
  width: 100%;
  margin-bottom: 0.75rem;
}

/* --------------------------------------------------------------- mobile */
@media (max-width: 480px) {
  main { gap: 0.5rem; }
  .task { padding: 0.5rem 0.55rem; gap: 0.45rem; }
  .task-actions .icon-btn { width: 1.85rem; height: 1.85rem; }
  .quick-add-form input { padding: 0.55rem 0.7rem; }
}