:root {
  color-scheme: dark;
  --bg: #111318;
  --card: #1b1e26;
  --text: #e8e9ed;
  --muted: #8b8f9c;
  --accent: #5b8cff;
  --danger: #ff6b6b;
  --border: #2a2d38;
}

* { box-sizing: border-box; }

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

/* The `hidden` attribute must beat every layout rule below. #login-screen sets
   `display:flex` (specificity 100) which silently outranks the browser default
   `[hidden]{display:none}` (specificity 10) — so hiding a screen in JS set the
   attribute and changed nothing on screen. */
[hidden] { display: none !important; }

.screen {
  min-height: 100vh;
  padding: env(safe-area-inset-top) 1rem env(safe-area-inset-bottom);
}

#chooser-screen {
  display: flex;
  align-items: center;
  justify-content: center;
}

#chooser-card {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

#new-list-form, #open-list-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.chooser-sub {
  text-align: center;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.chooser-or {
  text-align: center;
  color: var(--muted);
  margin: 0.25rem 0;
}

h1 {
  font-size: 1.4rem;
  margin: 0 0 0.5rem;
  text-align: center;
}

input[type="text"] {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 10px;
  font-size: 1rem;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.75rem;
  border-radius: 10px;
  font-size: 1rem;
  cursor: pointer;
}

button:active { opacity: 0.8; }

.error {
  color: var(--danger);
  font-size: 0.9rem;
  text-align: center;
}

#welcome-banner {
  background: var(--card);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 0.9rem;
  margin: 1rem 0;
}
#welcome-banner p { margin: 0 0 0.6rem; font-size: 0.9rem; }
.welcome-url-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.welcome-url-row input {
  flex: 1;
  min-width: 0;
  font-size: 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem;
  border-radius: 8px;
}
.welcome-url-row button {
  flex: 0 0 auto;
  padding: 0.5rem 0.8rem;
}
.welcome-dismiss {
  background: transparent;
  color: var(--muted);
  padding: 0.3rem 0;
  font-size: 0.85rem;
  width: 100%;
}

header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0 0.5rem;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 1;
}

header h1 { flex: 1; text-align: left; margin: 0; }

header button {
  background: transparent;
  padding: 0.4rem 0.6rem;
  font-size: 1.2rem;
}
header button:disabled { opacity: 0.5; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
#refresh-btn.spinning { display: inline-block; animation: spin 0.7s linear infinite; }

#add-form {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  /* Clears the sticky header: without it the input sat flush against the
     header's edge and its top border read as clipped. */
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

#add-input { width: 100%; }

.task {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.75rem;
  margin-bottom: 0.5rem;
}

.task input[type="checkbox"] {
  width: 22px;
  height: 22px;
  margin-top: 2px;
  accent-color: var(--accent);
}

.task-body { flex: 1; min-width: 0; }
.task-title { font-size: 1rem; word-break: break-word; }
.task.completed .task-title { text-decoration: line-through; color: var(--muted); }
.task-meta { font-size: 0.8rem; color: var(--muted); margin-top: 0.2rem; }

.recur-wrap { margin-top: .35rem; }

.recur-badge {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  background: transparent;
  font-size: .78rem;
  padding: .25rem .55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  cursor: pointer;
  text-align: left;
}
.recur-schedule { border-color: #3d5a99; color: #8fb3ff; }
.recur-completion { border-color: #3d8a5a; color: #7fd9a0; }
.note-claude { border-color: #8a6d3d; color: #f0c674; }
.note-own { border-color: var(--border); color: var(--muted); }

.recur-picker {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
  margin-top: .4rem;
}
.recur-option {
  font-size: .78rem;
  padding: .45rem .65rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
}
.recur-option.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}
.recur-option:disabled { opacity: .55; cursor: default; }

.task.pending-undo {
  border-color: #3d5a99;
}

.undo-row {
  margin-top: .45rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}
.undo-label {
  font-size: .78rem;
  color: var(--muted);
}
.undo-bar {
  height: 3px;
  border-radius: 2px;
  background: var(--border);
  overflow: hidden;
}
.undo-bar-fill {
  height: 100%;
  width: 100%;
  background: var(--accent);
}

.task-delete {
  background: transparent;
  color: var(--muted);
  padding: 0.3rem 0.5rem;
  font-size: 1rem;
}

.show-completed {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 1rem 0 2rem;
}

#empty-msg {
  color: var(--muted);
  text-align: center;
  margin-top: 2rem;
}

.add-when {
  display: flex;
  gap: .5rem;
}
.add-when input[type="date"],
.add-when input[type="time"] {
  flex: 1 1 0;
  min-width: 0;
  font-size: 1rem;             /* >=16px stops iOS zooming on focus */
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.6rem 0.5rem;
  border-radius: 10px;
}
.add-when button {
  flex: 0 0 auto;
  padding: 0.6rem 1rem;
}

.task-body { cursor: pointer; }

#add-preview {
  margin-top: .6rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .7rem;
}
.add-preview-recur {
  margin: 0 0 .6rem;
  font-size: .9rem;
  color: var(--accent);
}
.add-preview-actions {
  display: flex;
  gap: .5rem;
}
.add-preview-actions button { flex: 1; }
.secondary-btn {
  background: transparent !important;
  border: 1px solid var(--border);
  color: var(--text) !important;
}

/* ---- task details / edit screen ---- */

.detail-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10;
  overflow-y: auto;
}
.detail-screen header h1 { flex: 1; text-align: center; }
.detail-icon-btn {
  background: transparent;
  padding: 0.4rem 0.6rem;
  font-size: 1.2rem;
  flex: 0 0 auto;
}
.detail-delete-btn { color: var(--danger); }

#detail-form {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding-bottom: 3rem;
}

.field-label {
  font-size: .85rem;
  color: var(--muted);
  margin-top: .5rem;
}

#detail-title,
#detail-notes,
#detail-repeats {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.7rem;
  border-radius: 10px;
  font-size: 1rem;
  width: 100%;
  font-family: inherit;
}
#detail-notes { resize: vertical; }

#detail-interval {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.7rem;
  border-radius: 10px;
  font-size: 1rem;
  font-family: inherit;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 1rem;
  margin-top: .3rem;
}
.checkbox-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
}

.field-sub { margin-top: .3rem; }

.interval-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: 1rem;
}
.interval-row input {
  width: 4.5rem;
  flex: 0 0 auto;
}

.weekday-row {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}
.weekday-row label {
  display: flex;
  align-items: center;
  gap: .3rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .45rem .6rem;
  font-size: .9rem;
}
.weekday-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.recur-from-wrap {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.recur-from-option {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .6rem .7rem;
  font-size: .9rem;
}
.recur-from-option input[type="radio"] {
  width: 18px;
  height: 18px;
  margin-top: .1rem;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.detail-actions {
  margin-top: 1rem;
}
.detail-save {
  width: 100%;
  padding: 0.85rem;
  font-size: 1rem;
}

/* A past due date on an open task. Colour alone would be invisible to anyone
   who cannot distinguish it, so the weight carries the signal too. */
.task-meta.overdue {
  color: #ff6b6b;
  font-weight: 600;
}

/* The + is the primary action in the header, so it carries a little more
   weight than the refresh and bell beside it. */
#addtoggle-btn {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--accent, #6b8afd);
  font-weight: 600;
}

/* "On the [second] [Thursday] of each month" - wraps to two lines on a narrow
   phone rather than shrinking the selects below a comfortable tap target. */
.nth-row .nth-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
}
.nth-row select {
  font-size: 1rem;
  padding: 0.5rem;
  width: auto;
}