@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --bg: #fbf1e8;
  --bg-elevated: #ffffff;
  --card: #fffaf5;
  --border: #f0ddcd;
  --text: #4a3b35;
  --text-dim: #a3897c;
  --accent: #e8a187;
  --accent-strong: #d97757;
  --sage: #a9bf9f;
  --danger: #d9667a;
  --star: #eab04a;
  --shadow: 0 2px 10px rgba(151, 100, 66, 0.08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #2a2129;
    --bg-elevated: #362a32;
    --card: #3a2c34;
    --border: #4c3a41;
    --text: #f5e9e0;
    --text-dim: #b79e93;
    --accent: #e8a187;
    --accent-strong: #e2916f;
    --sage: #a9bf9f;
    --danger: #e38080;
    --star: #f0c669;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

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

body { padding-bottom: env(safe-area-inset-bottom); }

button { font-family: inherit; }

h1, h2, .app-name, .card-title, .config-card h1 {
  font-family: 'Fraunces', Georgia, serif;
  letter-spacing: -0.01em;
}

.loading { text-align: center; padding: 3rem 1rem; color: var(--text-dim); }

/* ---- generic screens (config / sign-in) ---- */
.screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.config-card {
  max-width: 420px;
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow);
}

.config-card h1 { margin: 0 0 0.25rem; font-size: 1.5rem; font-weight: 600; }
.config-card p { margin: 0 0 0.5rem; color: var(--text-dim); font-size: 0.92rem; line-height: 1.5; }
.config-card code { background: var(--bg-elevated); padding: 0.1rem 0.4rem; border-radius: 6px; }

.config-card input,
.config-card textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  padding: 0.7rem 0.8rem;
  font-size: 1rem;
  width: 100%;
  font-family: inherit;
}

.config-card textarea { font-family: ui-monospace, monospace; font-size: 0.85rem; resize: vertical; }

.error { color: var(--danger) !important; }

/* ---- buttons ---- */
.btn {
  background: var(--bg-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.65rem 1.1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--accent-strong); border-color: var(--accent-strong); color: white; box-shadow: 0 3px 10px rgba(217, 119, 87, 0.35); }
.btn.danger { border-color: var(--danger); color: var(--danger); }
.btn.small { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
.link-btn {
  background: none;
  border: none;
  color: var(--accent-strong);
  text-decoration: underline;
  cursor: pointer;
  padding: 0.25rem 0;
  font-size: 0.9rem;
  font-weight: 600;
  text-align: left;
}

/* ---- app shell ---- */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }
.app-header {
  padding: 1rem 1.1rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 5;
}
.app-name { font-weight: 600; font-size: 1.15rem; }

.view { flex: 1; padding: 1rem; padding-bottom: 5.5rem; max-width: 640px; margin: 0 auto; width: 100%; }

.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  padding-bottom: env(safe-area-inset-bottom);
  z-index: 10;
  overflow-x: auto;
}
.tab {
  flex: 1 0 auto;
  min-width: 3.6rem;
  background: none;
  border: none;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.1rem;
  padding: 0.6rem 0.15rem 0.5rem;
  font-size: 1.1rem;
  cursor: pointer;
  transition: color 0.15s, transform 0.15s;
}
.tab span { font-size: 0.62rem; font-weight: 700; }
.tab.active { color: var(--accent-strong); transform: translateY(-1px); }

/* ---- today view ---- */
.day-header { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; }
.day-title { text-align: center; flex: 1; }
.day-title h2 { margin: 0; font-size: 1.25rem; font-weight: 600; }
.badges { display: flex; gap: 0.35rem; justify-content: center; margin-top: 0.35rem; flex-wrap: wrap; }
.badge {
  background: var(--accent-strong);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}
.nav-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow);
}

.overall-progress { display: flex; align-items: center; gap: 0.6rem; margin: 1rem 0 1.2rem; }
.overall-progress .bar {
  flex: 1;
  height: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.overall-progress .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-strong), var(--star));
  width: 0%;
  border-radius: 999px;
  transition: width 0.35s ease;
}
.overall-progress span { font-size: 0.85rem; font-weight: 700; color: var(--text-dim); white-space: nowrap; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  margin-bottom: 0.9rem;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.card-head {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--text);
  padding: 0.9rem 1.1rem;
  font-size: 1rem;
  cursor: pointer;
  text-align: left;
}
.card-title { flex: 1; font-weight: 600; font-size: 1.05rem; }
.card-progress { color: var(--text-dim); font-size: 0.85rem; font-weight: 700; }
.chev { color: var(--text-dim); }

.section-note { margin: -0.3rem 1.1rem 0.7rem; color: var(--text-dim); font-size: 0.82rem; font-style: italic; line-height: 1.4; }

.items { list-style: none; margin: 0; padding: 0 1.1rem 1rem; }
.card.collapsed .items,
.card.collapsed .section-note { display: none; }

.item { padding: 0.4rem 0; }
.item label { display: flex; align-items: center; gap: 0.75rem; cursor: pointer; }

.item input[type='checkbox'] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.4rem;
  height: 1.4rem;
  min-width: 1.4rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  background: var(--bg-elevated);
  cursor: pointer;
  position: relative;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
}
.item input[type='checkbox']:active { transform: scale(0.9); }
.item input[type='checkbox']:checked {
  background: var(--accent-strong);
  border-color: var(--accent-strong);
}
.item input[type='checkbox']:checked::after {
  content: '';
  position: absolute;
  left: 0.42rem;
  top: 0.18rem;
  width: 0.32rem;
  height: 0.6rem;
  border: solid white;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
  animation: check-pop 0.2s ease;
}
@keyframes check-pop {
  from { transform: rotate(45deg) scale(0); }
  to { transform: rotate(45deg) scale(1); }
}

.item-label { line-height: 1.35; }
.item input[type='checkbox']:checked ~ .item-label { color: var(--text-dim); text-decoration: line-through; text-decoration-color: var(--border); }

.link-btn#jump-today { display: block; margin: 0.4rem auto 0.6rem; }

/* ---- celebration ---- */
.celebrate-banner {
  position: fixed;
  left: 50%;
  top: 1.2rem;
  transform: translateX(-50%) translateY(-20px);
  background: var(--accent-strong);
  color: white;
  font-weight: 700;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(217, 119, 87, 0.4);
  z-index: 50;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
}
.celebrate-banner.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.confetti-piece {
  position: fixed;
  top: -10px;
  width: 8px;
  height: 14px;
  z-index: 49;
  pointer-events: none;
  border-radius: 2px;
  animation: confetti-fall linear forwards;
}
@keyframes confetti-fall {
  to { transform: translateY(105vh) rotate(540deg); opacity: 0.9; }
}

/* ---- calendar view ---- */
.cal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.5rem; }
.cal-header h2 { margin: 0; font-size: 1.15rem; font-weight: 600; }
.streak-row { text-align: center; color: var(--text-dim); font-size: 0.9rem; margin-bottom: 1rem; font-weight: 600; }

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.35rem;
}
.cal-dow { text-align: center; font-size: 0.72rem; color: var(--text-dim); font-weight: 700; padding-bottom: 0.2rem; }
.cal-cell {
  aspect-ratio: 1;
  border: none;
  border-radius: 10px;
  color: var(--text);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  transition: transform 0.1s;
}
.cal-cell:active { transform: scale(0.92); }
.cal-cell.empty { background: transparent; cursor: default; }
.cal-cell.is-today { outline: 2px solid var(--accent-strong); outline-offset: 1px; }

.shade-0 { background: var(--bg-elevated); color: var(--text-dim); border: 1px solid var(--border); }
.shade-1 { background: #f3d3bd; color: #6b4326; }
.shade-2 { background: #eab08a; color: #4a2c14; }
.shade-3 { background: #e08b5c; color: #fff; }
.shade-4 { background: #d97757; color: #fff; }

.cal-legend { display: flex; align-items: center; justify-content: center; gap: 0.3rem; margin-top: 1.1rem; color: var(--text-dim); font-size: 0.75rem; }
.swatch { width: 14px; height: 14px; border-radius: 4px; }
.swatch.shade-0 { background: var(--bg-elevated); border: 1px solid var(--border); }

/* ---- settings view ---- */
.settings-account { padding: 1.1rem; margin-bottom: 1.2rem; }

.settings-notify { padding: 1.1rem; margin-bottom: 1.2rem; }
.notify-row { display: flex; align-items: center; justify-content: space-between; margin: 0.6rem 0; font-weight: 600; }
.notify-row input[type='checkbox'] { width: 1.3rem; height: 1.3rem; accent-color: var(--accent-strong); }
.notify-times { display: flex; gap: 1rem; margin-bottom: 0.6rem; }
.notify-times label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.82rem; color: var(--text-dim); font-weight: 700; }
.notify-times input[type='time'] {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
  font-family: inherit;
}
#notify-vapid {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
  font-size: 0.85rem;
  font-family: ui-monospace, monospace;
}
.settings-actions { display: flex; gap: 0.5rem; margin-top: 0.6rem; flex-wrap: wrap; }
.hint { color: var(--text-dim); font-size: 0.85rem; margin-top: -0.4rem; margin-bottom: 1rem; }

.editor-section { padding: 0.9rem 1.1rem; }
.editor-section-head { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.title-input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: 'Fraunces', Georgia, serif;
}
.row-btns { display: flex; gap: 0.25rem; }
.icon-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  width: 2rem;
  height: 2rem;
  cursor: pointer;
  font-size: 0.9rem;
}
.icon-btn.danger { color: var(--danger); }

.day-picker { margin-bottom: 0.7rem; }
.day-picker-label { display: block; font-size: 0.8rem; color: var(--text-dim); font-weight: 700; margin-bottom: 0.4rem; }
.day-pills { display: flex; gap: 0.3rem; margin-bottom: 0.5rem; }
.day-pill {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-dim);
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}
.day-pill.active { background: var(--accent-strong); border-color: var(--accent-strong); color: white; }

.basis-pills { display: flex; gap: 0.4rem; }
.basis-pill {
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
}
.basis-pill.active { background: var(--sage); border-color: var(--sage); color: #2d3a29; }

.editor-items { list-style: none; margin: 0 0 0.6rem; padding: 0; display: flex; flex-direction: column; gap: 0.35rem; }
.editor-item { display: flex; align-items: center; gap: 0.35rem; }
.item-input {
  flex: 1;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.4rem 0.55rem;
  font-size: 0.92rem;
  min-width: 0;
}

/* ---- tasks view ---- */
.add-row { display: flex; gap: 0.5rem; margin-bottom: 1rem; flex-wrap: wrap; }
.add-row input[type='text'] {
  flex: 1;
  min-width: 10rem;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.6rem 0.8rem;
  font-size: 0.95rem;
  font-family: inherit;
}
.add-row input[type='date'] {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.55rem 0.6rem;
  font-family: inherit;
}

.task-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.task-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.7rem 0.9rem;
  box-shadow: var(--shadow);
}
.task-item label { flex: 1; display: flex; align-items: center; gap: 0.65rem; cursor: pointer; min-width: 0; }
.task-item input[type='checkbox'] {
  appearance: none;
  -webkit-appearance: none;
  width: 1.3rem;
  height: 1.3rem;
  min-width: 1.3rem;
  border-radius: 8px;
  border: 2px solid var(--border);
  background: var(--bg-elevated);
  cursor: pointer;
  position: relative;
}
.task-item input[type='checkbox']:checked { background: var(--accent-strong); border-color: var(--accent-strong); }
.task-item input[type='checkbox']:checked::after {
  content: '';
  position: absolute;
  left: 0.38rem;
  top: 0.16rem;
  width: 0.3rem;
  height: 0.55rem;
  border: solid white;
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}
.task-item input[type='checkbox']:checked ~ .task-text { color: var(--text-dim); text-decoration: line-through; }
.task-text { line-height: 1.35; overflow-wrap: anywhere; }

.due-badge { font-size: 0.72rem; font-weight: 700; color: var(--text-dim); background: var(--bg-elevated); border: 1px solid var(--border); padding: 0.15rem 0.5rem; border-radius: 999px; white-space: nowrap; }
.due-badge.due-today { color: white; background: var(--sage); border-color: var(--sage); }
.due-badge.overdue { color: white; background: var(--danger); border-color: var(--danger); }

.task-list.completed { margin-top: 0.6rem; opacity: 0.8; }
.empty-hint { color: var(--text-dim); text-align: center; padding: 1.5rem 0; }

/* ---- notes view ---- */
.add-note { display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.2rem; }
.add-note textarea,
.note-edit-input {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 12px;
  padding: 0.7rem 0.8rem;
  font-size: 0.95rem;
  font-family: inherit;
  resize: vertical;
}

.notes-list { display: flex; flex-direction: column; gap: 0.8rem; }
.note-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0.9rem 1.1rem;
  box-shadow: var(--shadow);
}
.note-text { margin: 0 0 0.5rem; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.note-meta { display: flex; align-items: center; justify-content: space-between; font-size: 0.78rem; color: var(--text-dim); gap: 0.5rem; }
.note-meta .note-actions { display: flex; gap: 0.8rem; }
.note-edit-actions { display: flex; gap: 0.5rem; margin-top: 0.6rem; }

/* ---- home view ---- */
.home-greeting { margin-bottom: 1rem; }
.home-greeting h2 { margin: 0; font-size: 1.4rem; font-weight: 600; }

.tracker-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; margin-bottom: 1.2rem; }
.tracker-card { padding: 1rem; display: flex; flex-direction: column; gap: 0.6rem; }
.tracker-head { display: flex; align-items: center; justify-content: space-between; font-weight: 700; }
.tracker-head span:first-child { font-size: 0.95rem; }
.tracker-head span:last-child { font-size: 0.85rem; color: var(--text-dim); }

.tracker-dots { display: flex; flex-wrap: wrap; gap: 0.15rem; min-height: 1.4rem; }
.water-dot { font-size: 1.05rem; opacity: 0.25; filter: grayscale(1); }
.water-dot.filled { opacity: 1; filter: none; }

.tracker-btns { display: flex; gap: 0.4rem; }
.tracker-btns .btn { flex: 1; }
.tracker-btns .btn:disabled { opacity: 0.4; cursor: default; }

.weight-form { display: flex; gap: 0.4rem; }
.weight-form input {
  flex: 1;
  min-width: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem 0.6rem;
  font-size: 0.95rem;
  font-family: inherit;
}
.trend-up { color: var(--danger); }
.trend-down { color: var(--sage); }
.trend-flat { color: var(--text-dim); }

.nav-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; }
.nav-tile {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 1.1rem 0.8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
  cursor: pointer;
  transition: transform 0.1s;
}
.nav-tile:active { transform: scale(0.96); }
.nav-tile-emoji { font-size: 1.8rem; }

@media (min-width: 640px) {
  .view { padding-top: 1.5rem; }
}