*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Ensure the `hidden` attribute always wins over any display: flex/block rules */
[hidden] { display: none !important; }

:root {
  --primary:            #6650A4;
  --primary-hover:      #7965af;
  --primary-container:  #EADDFF;
  --on-primary:         #FFFFFF;
  --on-primary-cont:    #21005D;
  --tertiary-container: #FFD8E4;
  --on-tertiary-cont:   #31111D;
  --surface:            #FAFAFA;
  --surface-variant:    #E7E0EC;
  --on-surface:         #1C1B1F;
  --on-surface-var:     #49454F;
  --outline:            #CAC4D0;
  --error:              #B3261E;
  --success:            #2E7D32;
  --card-bg:            #FFFFFF;
  --radius:             14px;
  --radius-sm:          10px;
  --shadow-sm:          0 1px 4px rgba(0,0,0,.10);
  --shadow-md:          0 4px 18px rgba(0,0,0,.13);
  --transition:         .18s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--surface);
  color: var(--on-surface);
  min-height: 100dvh;
}

/* ══════════════════════════════════════════════
   LOGIN SCREEN
══════════════════════════════════════════════ */
.login-screen {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: linear-gradient(160deg, var(--primary-container) 0%, var(--surface) 55%);
}

.login-card {
  background: var(--card-bg);
  border-radius: 24px;
  padding: 32px 24px 28px;
  width: 100%;
  max-width: 420px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.login-logo {
  width: 64px;
  height: 64px;
  background: var(--primary-container);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 16px;
}

.login-title {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -.5px;
  color: var(--on-surface);
  margin-bottom: 8px;
}

.login-subtitle {
  font-size: 14px;
  color: var(--on-surface-var);
  text-align: center;
  line-height: 1.6;
  margin-bottom: 24px;
  max-width: 320px;
}

/* Steps card */
.steps-card {
  width: 100%;
  background: var(--surface);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-bottom: 20px;
  border: 1px solid var(--outline);
}

.steps-heading {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--on-surface-var);
  margin-bottom: 10px;
}

.steps-list {
  padding-left: 18px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.steps-list li {
  font-size: 13px;
  color: var(--on-surface);
  line-height: 1.5;
}

.steps-list strong { font-weight: 600; }

.steps-list code {
  background: var(--primary-container);
  color: var(--primary);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.gh-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  padding: 6px 10px;
  border-radius: 6px;
  background: var(--primary-container);
  transition: background var(--transition);
}
.gh-link:hover { background: #ddd5f8; }

/* Token input */
.token-group {
  width: 100%;
  margin-bottom: 14px;
}

.token-group > label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--on-surface-var);
  margin-bottom: 7px;
}

.token-input-wrap {
  position: relative;
  display: flex;
}

.token-input-wrap input {
  width: 100%;
  padding: 12px 44px 12px 14px;
  border: 1.5px solid var(--outline);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: 'SF Mono', 'Fira Code', monospace;
  color: var(--on-surface);
  background: white;
  outline: none;
  transition: border-color var(--transition);
}
.token-input-wrap input:focus { border-color: var(--primary); }
.token-input-wrap input.invalid { border-color: var(--error); }

.token-reveal {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-surface-var);
  padding: 4px;
  display: flex;
  align-items: center;
  opacity: .6;
  transition: opacity var(--transition);
}
.token-reveal:hover { opacity: 1; }

.token-error {
  display: block;
  font-size: 12px;
  color: var(--error);
  margin-top: 5px;
  min-height: 16px;
}

/* Connect button */
.btn-connect {
  width: 100%;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
}

/* Offline link */
.btn-offline {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 13px;
  color: var(--on-surface-var);
  text-decoration: underline;
  text-underline-offset: 3px;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color var(--transition);
}
.btn-offline:hover { color: var(--primary); }

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ══════════════════════════════════════════════
   APP SHELL
══════════════════════════════════════════════ */
.app {
  max-width: 600px;
  margin: 0 auto;
  padding-bottom: 96px;
}

/* ── Header ─────────────────────────────────────── */
.header {
  background: var(--primary-container);
  padding: 14px 16px 14px;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: var(--shadow-sm);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.app-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary);
}

/* User pill */
.user-pill {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sync-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--outline);
  flex-shrink: 0;
  transition: background .3s;
}
.sync-dot.syncing { background: #F59E0B; animation: pulse .9s ease-in-out infinite; }
.sync-dot.synced  { background: #22C55E; }
.sync-dot.error   { background: var(--error); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .4; }
}

.user-avatar {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--outline);
}

.user-name {
  font-size: 12px;
  font-weight: 600;
  color: var(--on-primary-cont);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.signout-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--on-primary-cont);
  opacity: .55;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition), background var(--transition);
}
.signout-btn:hover { opacity: 1; background: rgba(0,0,0,.08); }

/* Offline badge */
.offline-badge {
  font-size: 11px;
  font-weight: 600;
  color: var(--on-surface-var);
  background: rgba(0,0,0,.07);
  padding: 3px 10px;
  border-radius: 100px;
}

/* ── Month nav ───────────────────────────────────── */
.month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-primary-cont);
  transition: background var(--transition);
}
.nav-btn:hover  { background: rgba(0,0,0,.08); }
.nav-btn:active { background: rgba(0,0,0,.14); }

.month-label {
  font-size: 22px;
  font-weight: 700;
  color: var(--on-primary-cont);
  letter-spacing: -.3px;
}

/* ── Main ────────────────────────────────────────── */
.main { padding: 20px 16px; }

/* ── Progress ────────────────────────────────────── */
.progress-section {
  display: none;
  margin-bottom: 20px;
}
.progress-section.visible { display: block; }

.progress-track {
  height: 8px;
  background: var(--surface-variant);
  border-radius: 100px;
  overflow: hidden;
  margin-bottom: 6px;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 100px;
  transition: width .35s ease;
}
.progress-text {
  font-size: 12px;
  color: var(--on-surface-var);
}

/* ── Todo list ───────────────────────────────────── */
.todo-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* ── Todo card ───────────────────────────────────── */
.todo-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  padding: 14px 12px;
  gap: 10px;
  transition: opacity var(--transition), transform var(--transition);
  animation: slideIn .2s ease;
}
.todo-card.completed { opacity: .55; }

@keyframes slideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.checkbox-wrap { flex-shrink: 0; padding-top: 2px; }
.checkbox-wrap input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--primary);
}

.todo-content { flex: 1; min-width: 0; }

.todo-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}
.todo-title {
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  word-break: break-word;
}
.todo-card.completed .todo-title {
  text-decoration: line-through;
  color: var(--on-surface-var);
}

.badge-recurring {
  font-size: 10px;
  font-weight: 700;
  background: var(--tertiary-container);
  color: var(--on-tertiary-cont);
  padding: 2px 8px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: .3px;
}

.todo-desc {
  font-size: 13px;
  color: var(--on-surface-var);
  margin-top: 4px;
  line-height: 1.5;
  word-break: break-word;
}
.todo-card.completed .todo-desc { text-decoration: line-through; }

.todo-actions {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.edit-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--on-surface-var);
  opacity: .4;
  transition: opacity var(--transition), background var(--transition);
}
.edit-btn:hover { opacity: 1; background: rgba(0,0,0,.06); }
.delete-btn {
  background: none;
  border: none;
  cursor: pointer;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--error);
  opacity: .4;
  transition: opacity var(--transition), background var(--transition);
}
.delete-btn:hover { opacity: 1; background: rgba(179,38,30,.08); }

/* ── Empty state ─────────────────────────────────── */
.empty-state {
  display: none;
  text-align: center;
  padding: 64px 24px;
  color: var(--on-surface-var);
}
.empty-state.visible { display: block; }

.empty-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 18px;
  color: var(--primary);
  opacity: .2;
}
.empty-title { font-size: 15px; font-weight: 500; }
.empty-hint  { font-size: 13px; opacity: .55; margin-top: 6px; }

/* ── FAB ─────────────────────────────────────────── */
.fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  border-radius: 18px;
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: background var(--transition), transform .15s;
  z-index: 50;
}
.fab:hover  { background: var(--primary-hover); transform: scale(1.05); }
.fab:active { transform: scale(.96); }

/* ── Modal overlay ───────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s ease;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--card-bg);
  border-radius: 24px 24px 0 0;
  padding: 24px 20px 36px;
  width: 100%;
  max-width: 600px;
  transform: translateY(28px);
  transition: transform .25s ease;
}
.modal-overlay.open .modal { transform: translateY(0); }

.modal-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 22px;
}

/* ── Form ────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-group > label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--on-surface-var);
  margin-bottom: 7px;
}
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; }

.form-group input[type="text"],
.form-group input[type="date"],
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--outline);
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-family: inherit;
  color: var(--on-surface);
  background: white;
  outline: none;
  resize: none;
  transition: border-color var(--transition);
}
/* Prevent date input from shrinking the text on some browsers */
.form-group input[type="date"] {
  cursor: pointer;
  min-height: 48px;
}
.form-group input[type="date"]::-webkit-calendar-picker-indicator {
  opacity: .5;
  cursor: pointer;
}
.form-group input[type="text"]:focus,
.form-group input[type="date"]:focus,
.form-group textarea:focus { border-color: var(--primary); }
.form-group input[type="text"].invalid { border-color: var(--error); }

.field-error {
  display: none;
  font-size: 12px;
  color: var(--error);
  margin-top: 4px;
}
.field-error.visible { display: block; }

/* ── Due date — card borders ─────────────────────────────── */
.todo-card.overdue   { border-left: 3px solid #B3261E; }
.todo-card.due-today { border-left: 3px solid #D84315; }
.todo-card.due-soon  { border-left: 3px solid #F59E0B; }
.todo-card.on-track  { border-left: 3px solid #2E7D32; }

/* ── Due date chip ───────────────────────────────────────── */
.badge-due {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: .3px;
  margin-top: 5px;
}
.badge-due.overdue   { background: #FDECEA; color: #B3261E; }
.badge-due.due-today { background: #FBE9E7; color: #92400E; }
.badge-due.due-soon  { background: #FFF8E1; color: #B45309; }
.badge-due.on-track  { background: #E8F5E9; color: #2E7D32; }

/* ── Toggle ──────────────────────────────────────── */
.toggle-label {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  cursor: pointer;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--outline);
  transition: border-color var(--transition), background var(--transition);
}
.toggle-label:has(input:checked) {
  border-color: var(--primary);
  background: rgba(102,80,164,.04);
}
.toggle-label input[type="checkbox"] { display: none; }

.toggle-switch {
  width: 46px;
  height: 26px;
  background: #CAC4D0;
  border-radius: 100px;
  flex-shrink: 0;
  margin-top: 1px;   /* align knob baseline with first text line */
  position: relative;
  transition: background .2s;
  display: inline-block;
}
.toggle-switch::after {
  content: '';
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: white;
  top: 3px;
  left: 3px;
  transition: transform .2s;
  box-shadow: 0 1px 4px rgba(0,0,0,.22);
}
.toggle-label:has(input:checked) .toggle-switch        { background: var(--primary); }
.toggle-label:has(input:checked) .toggle-switch::after { transform: translateX(20px); }

.toggle-text { display: inline-block; vertical-align: top; margin-top: 6px;}
.toggle-title { font-size: 15px; font-weight: 500; color: var(--on-surface); text-transform: none; }
.toggle-desc  { font-size: 12px; color: var(--on-surface-var); }

/* ── Category chips ──────────────────────────────────── */
.form-fieldset { border: none; padding: 0; margin: 0; margin-bottom: 1rem; }

.form-legend {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--on-surface-var);
  margin-bottom: 7px;
}

.category-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip-label { cursor: pointer; }
.chip-label input[type="radio"] { display: none; }

.chip-label span {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1.5px solid var(--outline);
  font-size: 13px;
  font-weight: 500;
  color: var(--on-surface-var);
  transition: border-color var(--transition), background var(--transition), color var(--transition);
}
.chip-label:has(input:checked) span {
  border-color: var(--primary);
  background: var(--primary-container);
  color: var(--primary);
}

/* ── Category badge on cards ─────────────────────────── */
.badge-cat {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: .3px;
}
.badge-cat.cat-personal      { background: #EDE7F6; color: #4527A0; }
.badge-cat.cat-emi           { background: #FCE4EC; color: #880E4F; }
.badge-cat.cat-house         { background: #E8F5E9; color: #1B5E20; }
.badge-cat.cat-office        { background: #E3F2FD; color: #0D47A1; }
.badge-cat.cat-miscellaneous { background: #ECEFF1; color: #37474F; }

/* ── Modal actions ───────────────────────────────── */
.modal-actions { display: flex; gap: 10px; margin-top: 8px; }

.btn {
  flex: 1;
  padding: 13px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 15px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
}
.btn-secondary { background: var(--surface-variant); color: var(--on-surface); }
.btn-secondary:hover { background: #d8d0e0; }
.btn-primary  { flex: 2; background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled {
  background: var(--surface-variant);
  color: var(--on-surface-var);
  cursor: not-allowed;
}

/* ── Confirm dialog ──────────────────────────────── */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: fadeIn .18s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.confirm-dialog {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  max-width: 320px;
  width: calc(100% - 40px);
  box-shadow: var(--shadow-md);
  animation: scaleIn .18s ease;
}
@keyframes scaleIn { from { transform: scale(.94); opacity: 0; } to { transform: scale(1); opacity: 1; } }

.confirm-dialog h3 { font-size: 16px; margin-bottom: 8px; }
.confirm-dialog p  { font-size: 14px; color: var(--on-surface-var); line-height: 1.5; margin-bottom: 22px; }

.confirm-actions { display: flex; gap: 10px; justify-content: flex-end; }
.confirm-actions .btn { flex: none; padding: 9px 20px; }
.btn-confirm-cancel { background: var(--surface-variant); color: var(--on-surface); }
.btn-confirm-delete { background: var(--error); color: white; }
.btn-confirm-delete:hover { background: #c9302c; }