/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

/* ===== Custom Properties ===== */
:root {
  --bg: #0f0f0f;
  --surface: #1a1a1a;
  --surface-elevated: #252525;
  --accent: #5eb8f0;
  --accent-dim: rgba(94, 184, 240, 0.15);
  --secondary: #a78bfa;
  --secondary-dim: rgba(167, 139, 250, 0.15);
  --tertiary: #f472b6;
  --tertiary-dim: rgba(244, 114, 182, 0.15);
  --text: #e8e8e8;
  --text-secondary: #888888;
  --border: #2a2a2a;
  --success: #4ade80;
  --danger: #ef4444;
  --danger-dim: rgba(239, 68, 68, 0.15);
  --radius: 10px;
  --radius-sm: 6px;
  --radius-lg: 16px;
  --transition: 0.2s ease;
}

/* ===== Typography ===== */
h1, h2, h3 { font-weight: 600; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }

/* ===== Top Bar ===== */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  z-index: 10;
}

.top-bar__title {
  font-size: 1.3rem;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.top-bar__settings {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 6px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}

.top-bar__settings:hover {
  color: var(--text);
}

/* ===== Content Area ===== */
.content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.tab-content {
  display: none;
  min-height: 100%;
}

.tab-content--active {
  display: block;
}

.tab-inner {
  padding: 16px;
  padding-bottom: 24px;
  max-width: 600px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .tab-inner { max-width: 700px; }
}

/* ===== Bottom Tab Bar ===== */
.tab-bar {
  display: flex;
  background: var(--surface);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  z-index: 10;
}

.tab-bar__btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 4px 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color var(--transition);
  min-height: 52px;
  -webkit-tap-highlight-color: transparent;
}

.tab-bar__btn--active {
  color: var(--accent);
}

.tab-bar__icon {
  width: 22px;
  height: 22px;
}

.tab-bar__label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.3px;
}

/* ===== Cards ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 12px;
}

.card--accent {
  border-color: var(--accent);
  border-left-width: 3px;
}

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.card__title {
  font-size: 0.95rem;
  font-weight: 600;
}

.card__subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.card__actions {
  display: flex;
  gap: 6px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
  min-height: 44px;
}

.btn:active { opacity: 0.8; }

.btn--primary {
  background: var(--accent);
  color: #0f0f0f;
}

.btn--primary:hover { background: #7cc8f5; }

.btn--secondary {
  background: var(--surface-elevated);
  color: var(--text);
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.btn--danger {
  background: var(--danger);
  color: white;
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 6px 10px;
  min-height: auto;
  font-size: 0.8rem;
}

.btn--ghost:hover { color: var(--text); }

.btn--small {
  padding: 6px 12px;
  font-size: 0.8rem;
  min-height: 34px;
}

.btn--full { width: 100%; }

.btn--icon {
  padding: 6px;
  min-height: auto;
  min-width: auto;
  background: transparent;
  color: var(--text-secondary);
  border: none;
}

.btn--icon:hover { color: var(--text); }
.btn--icon.btn--danger-text:hover { color: var(--danger); }

/* ===== Inputs ===== */
.input, .textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color var(--transition);
  min-height: 44px;
}

.input:focus, .textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.input::placeholder, .textarea::placeholder {
  color: var(--text-secondary);
}

.textarea {
  resize: vertical;
  min-height: 60px;
}

select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23888888' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

/* ===== Form Groups ===== */
.form-group {
  display: block;
  margin-bottom: 12px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
}

.form-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.form-row > * {
  flex: 1;
}

.input-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-group .input {
  flex: 1;
}

.input-suffix {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ===== Chips ===== */
.chip-row {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding: 8px 0;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.chip-row::-webkit-scrollbar { display: none; }

.chip {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  min-height: 32px;
}

.chip--active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Toggle Buttons ===== */
.toggle-row {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 12px;
}

.toggle-btn {
  flex: 1;
  padding: 10px 8px;
  background: transparent;
  border: none;
  border-right: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 44px;
}

.toggle-btn:last-child { border-right: none; }

.toggle-btn--active {
  background: var(--accent-dim);
  color: var(--accent);
}

/* ===== Segmented Control ===== */
.segmented {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-bottom: 14px;
}

.segmented__btn {
  flex: 1;
  padding: 8px 10px;
  background: transparent;
  border: none;
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 36px;
}

.segmented__btn--active {
  background: var(--accent);
  color: #0f0f0f;
}

/* ===== Period Filter ===== */
.period-row {
  display: flex;
  gap: 4px;
  margin-bottom: 14px;
}

.period-btn {
  flex: 1;
  padding: 6px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  min-height: 32px;
}

.period-btn--active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.modal[hidden] { display: none; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal__sheet {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: 20px 16px;
  padding-bottom: calc(16px + env(safe-area-inset-bottom, 0));
  width: 100%;
  max-width: 500px;
  max-height: 80vh;
  overflow-y: auto;
  animation: sheetUp 0.25s ease-out;
}

@keyframes sheetUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal__dialog {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px 20px;
  width: calc(100% - 48px);
  max-width: 360px;
  margin: auto;
  animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.modal__title {
  font-size: 1.1rem;
}

.modal__close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
}

/* ===== Exercise List (Modal) ===== */
.exercise-list {
  max-height: 40vh;
  overflow-y: auto;
  margin: 10px 0;
}

.exercise-item {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background var(--transition);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.exercise-item:hover {
  background: var(--surface-elevated);
}

.exercise-item__name {
  font-size: 0.9rem;
  font-weight: 500;
}

.exercise-item__category {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== Confirm Dialog ===== */
.confirm-message {
  font-size: 0.95rem;
  margin-bottom: 18px;
  line-height: 1.4;
}

.confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ===== Workout Exercise Card ===== */
.exercise-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.exercise-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: var(--surface-elevated);
}

.exercise-card__name {
  font-size: 0.9rem;
  font-weight: 600;
}

.exercise-card__body {
  padding: 10px 12px;
}

.set-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.set-row__label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  min-width: 28px;
}

.set-row .input {
  width: 70px;
  padding: 8px;
  text-align: center;
  font-size: 0.85rem;
  min-height: 38px;
}

.set-row__unit {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ===== Stats Row ===== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  text-align: center;
}

.stat-card__value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-card__label {
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* ===== Weekly Grid ===== */
.week-grid {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.week-day {
  flex: 1;
  text-align: center;
}

.week-day__label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.week-day__dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

.week-day__dot--active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

.week-day__dot--today {
  border-color: var(--accent);
}

/* ===== Activity List ===== */
.activity-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.activity-icon--workout {
  background: var(--accent-dim);
  color: var(--accent);
}

.activity-icon--cardio {
  background: var(--tertiary-dim);
  color: var(--tertiary);
}

.activity-icon--body {
  background: var(--secondary-dim);
  color: var(--secondary);
}

.activity-info { flex: 1; min-width: 0; }

.activity-info__title {
  font-size: 0.88rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.activity-info__detail {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.activity-date {
  font-size: 0.72rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* ===== Section Headers ===== */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  margin-top: 20px;
}

.section-header:first-child { margin-top: 0; }

.section-title {
  font-size: 1rem;
  font-weight: 600;
}

/* ===== Quick Actions ===== */
.quick-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

/* ===== Chart Container ===== */
.chart-container {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 14px;
}

.chart-container__title {
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.chart-container canvas {
  width: 100% !important;
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.empty-state__icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state__text {
  font-size: 0.9rem;
  margin-bottom: 16px;
}

/* ===== History Item ===== */
.history-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  margin-bottom: 8px;
}

.history-item__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 6px;
}

.history-item__title {
  font-size: 0.9rem;
  font-weight: 600;
}

.history-item__date {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.history-item__detail {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.history-item__actions {
  display: flex;
  gap: 4px;
  margin-top: 8px;
  justify-content: flex-end;
}

/* ===== Collapsible ===== */
.collapsible-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  padding: 8px 0;
  width: 100%;
}

.collapsible-toggle__arrow {
  transition: transform var(--transition);
  font-size: 0.7rem;
}

.collapsible-toggle--open .collapsible-toggle__arrow {
  transform: rotate(90deg);
}

.collapsible-content {
  display: none;
}

.collapsible-content--open {
  display: block;
}

/* ===== Divider ===== */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 14px 0;
}

/* ===== Settings Form ===== */
.settings-form {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* ===== Scrollbar ===== */
.content::-webkit-scrollbar {
  width: 4px;
}

.content::-webkit-scrollbar-track {
  background: transparent;
}

.content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* ===== Mini Charts (Dashboard) ===== */
.chart-container--mini {
  padding: 10px;
  margin-bottom: 10px;
}

.chart-container--mini .chart-container__title {
  font-size: 0.75rem;
  margin-bottom: 6px;
}

.dashboard-charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ===== Responsive ===== */
@media (min-width: 480px) {
  .stats-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 768px) {
  .tab-inner {
    padding: 24px;
  }

  .modal__sheet {
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
  }
}

/* ===== Light Theme ===== */
[data-theme="light"] {
  --bg: #f5f5f5;
  --surface: #ffffff;
  --surface-elevated: #fafafa;
  --text: #1a1a1a;
  --text-secondary: #6b6b6b;
  --border: #e0e0e0;
  --accent: #0ea5e9;
  --accent-dim: rgba(14, 165, 233, 0.12);
  --secondary: #8b5cf6;
  --secondary-dim: rgba(139, 92, 246, 0.1);
  --tertiary: #ec4899;
  --tertiary-dim: rgba(236, 72, 153, 0.1);
  --danger-dim: rgba(239, 68, 68, 0.1);
}

[data-theme="light"] .btn--primary { color: #fff; }
[data-theme="light"] .segmented__btn--active { color: #fff; }

/* Theme transition */
html.theme-transitioning * {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease !important;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 90px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-elevated);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 90vw;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast--success { border-color: var(--success); }
.toast--pr {
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  color: #fff;
  border: none;
}
.toast--streak {
  background: linear-gradient(135deg, #f97316, var(--tertiary));
  color: #fff;
  border: none;
}
.toast--error { border-color: var(--danger); }

.toast__icon { font-size: 1.1rem; }
.toast__msg { font-size: 0.88rem; font-weight: 500; }
.toast__pr-header { font-size: 0.95rem; font-weight: 700; margin-bottom: 4px; }
.toast__pr-line { font-size: 0.82rem; }

/* ===== Progress Ring ===== */
.progress-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.progress-ring__info {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.progress-ring__value {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.progress-ring__label {
  font-size: 0.55rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.frequency-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  justify-items: center;
  padding: 12px;
}

.section-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text);
}

/* ===== Calendar ===== */
.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.calendar-month-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.calendar-day-label {
  font-size: 0.68rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 4px 0;
  font-weight: 600;
}

.calendar-day {
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  transition: background var(--transition);
  min-height: 36px;
}

.calendar-day:hover { background: var(--surface-elevated); }
.calendar-day--empty { border-color: transparent; cursor: default; }
.calendar-day--empty:hover { background: transparent; }

.calendar-day--today {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.calendar-day__num {
  font-size: 0.75rem;
  font-weight: 500;
}

.calendar-day__dots {
  display: flex;
  gap: 3px;
}

.calendar-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
}

.calendar-popup {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0.5);
}

.calendar-popup[hidden] { display: none; }

.calendar-popup__inner {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 20px;
  width: calc(100% - 48px);
  max-width: 360px;
  animation: fadeIn 0.15s ease-out;
}

.calendar-popup__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.calendar-popup__header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.calendar-popup__activities {
  margin-bottom: 14px;
}

.calendar-activity {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.calendar-activity:last-child { border-bottom: none; }

.calendar-popup__actions {
  display: flex;
  gap: 8px;
}

.btn--sm {
  padding: 8px 14px;
  font-size: 0.82rem;
  min-height: 36px;
}

/* ===== Settings Tab ===== */
.theme-toggle-group {
  display: flex;
  gap: 8px;
}

.theme-btn {
  flex: 1;
  padding: 10px;
  background: var(--surface-elevated);
  border: 2px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition);
}

.theme-btn--active {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

/* ===== Swipe to Delete ===== */
.swipeable {
  position: relative;
  overflow: hidden;
}

.delete-action {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 80px;
  background: var(--danger);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0 var(--radius) var(--radius) 0;
}

/* ===== Text Helper ===== */
.text-secondary {
  font-size: 0.78rem;
  color: var(--text-secondary);
}