:root,
[data-theme="dark"] {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-hover: #1f242c;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #7d8590;
  --accent: #2f81f7;
  --accent-btn: #238636;
  --accent-btn-hover: #2ea043;
  --danger: #f85149;
  --cell-empty: #161b22;
  --cell-border: rgba(255, 255, 255, 0.05);
  /* GitHub dark green scale */
  --green-1: #0e4429;
  --green-2: #006d32;
  --green-3: #26a641;
  --green-4: #39d353;
}

[data-theme="light"] {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --surface-hover: #f3f4f6;
  --border: #d0d7de;
  --text: #1f2328;
  --muted: #656d76;
  --accent: #0969da;
  --accent-btn: #1f883d;
  --accent-btn-hover: #1a7f37;
  --danger: #cf222e;
  --cell-empty: #ebedf0;
  --cell-border: rgba(27, 31, 35, 0.06);
  /* GitHub light green scale */
  --green-1: #9be9a8;
  --green-2: #40c463;
  --green-3: #30a14e;
  --green-4: #216e39;
}

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

[hidden] {
  display: none !important;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  padding-bottom: calc(2rem + env(safe-area-inset-bottom));
  -webkit-tap-highlight-color: transparent;
}

.container {
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.topbar {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding-top: env(safe-area-inset-top);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  color: var(--green-4);
}

.brand-title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.brand-badge {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
}

.brand-badge.synced {
  color: var(--green-4);
  border-color: var(--green-3);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-github {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration: none;
  background-color: #24292f;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

[data-theme="light"] .btn-github {
  background-color: #24292f;
  color: #ffffff;
}

.btn-github:hover {
  background-color: #32383f;
}

.user-profile-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-left: 8px;
  border-left: 1px solid var(--border);
}

.user-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.user-name {
  font-size: 13px;
  font-weight: 600;
}

.auth-alert {
  background-color: rgba(248, 81, 73, 0.12);
  border: 1px solid var(--danger);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
}

/* Main Layout */
.main-content {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 18px 20px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}

.stack-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

@media (max-width: 780px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

/* Commit Graph Section */
.graph-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.graph-title {
  font-size: 16px;
  font-weight: 600;
}

.graph-subtitle {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.stats-pills {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.stat-pill {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 12px;
  display: flex;
  flex-direction: column;
  min-width: 82px;
}

.stat-label {
  font-size: 11px;
  color: var(--muted);
}

.stat-value {
  font-size: 15px;
  font-weight: 600;
}

.graph-scroll {
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.graph-wrapper {
  display: inline-block;
  min-width: max-content;
}

.graph-months {
  display: grid;
  grid-template-columns: repeat(53, 13px);
  column-gap: 3px;
  margin-left: 32px;
  margin-bottom: 6px;
  font-size: 11px;
  color: var(--muted);
  height: 15px;
  position: relative;
}

.graph-month-label {
  white-space: nowrap;
}

.graph-body {
  display: flex;
  gap: 6px;
}

.graph-days-labels {
  display: grid;
  grid-template-rows: repeat(7, 13px);
  row-gap: 3px;
  font-size: 11px;
  color: var(--muted);
  width: 26px;
  line-height: 13px;
}

.graph-grid {
  display: grid;
  grid-template-rows: repeat(7, 13px);
  grid-auto-flow: column;
  grid-auto-columns: 13px;
  gap: 3px;
}

.graph-cell {
  width: 13px;
  height: 13px;
  border-radius: 2px;
  background-color: var(--cell-empty);
  outline: 1px solid var(--cell-border);
  outline-offset: -1px;
  cursor: pointer;
  transition: transform 80ms ease;
  padding: 0;
  border: none;
}

.graph-cell:hover {
  transform: scale(1.25);
  z-index: 2;
  outline: 1px solid var(--text);
}

.graph-cell.is-selected {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  z-index: 1;
}

.graph-cell.is-today:not(.is-selected) {
  outline: 1.5px solid var(--text);
}

.graph-cell.is-future {
  opacity: 0.25;
  cursor: default;
}

.graph-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 8px;
}

.graph-legend {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
}

.legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
  outline: 1px solid var(--cell-border);
  outline-offset: -1px;
}

/* Cards & Controls */
.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
}

.card-desc {
  font-size: 12px;
  color: var(--muted);
}

.date-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.date-trigger-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg);
}

.cal-icon {
  color: var(--muted);
}

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  padding: 0;
  background-color: var(--bg);
}

.btn-icon:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

/* Habit Rows with Mark Complete Button */
.chore-checklist,
.manage-chore-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chore-row-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: var(--bg);
  transition: border-color 140ms ease, background-color 140ms ease;
}

.chore-row-item.is-completed {
  border-color: var(--green-3);
  background-color: rgba(38, 166, 65, 0.06);
}

.chore-row-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.chore-status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--border);
  flex-shrink: 0;
  transition: background-color 140ms ease, box-shadow 140ms ease;
}

.chore-row-item.is-completed .chore-status-dot {
  background-color: var(--green-4);
  box-shadow: 0 0 8px rgba(57, 211, 83, 0.45);
}

.chore-row-name {
  font-size: 14px;
  font-weight: 500;
  word-break: break-word;
}

.mark-complete-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 13px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid var(--border);
  background-color: var(--surface-hover);
  color: var(--text);
  transition: all 120ms ease;
}

.mark-complete-btn:hover {
  border-color: var(--muted);
}

.mark-complete-btn.completed {
  background-color: var(--accent-btn);
  border-color: rgba(255, 255, 255, 0.12);
  color: #ffffff;
}

.mark-complete-btn.completed:hover {
  background-color: var(--accent-btn-hover);
}

/* Add / Remove Chores */
.add-chore-form {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}

.add-chore-form .input {
  flex: 1;
}

.manage-chore-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--bg);
}

.manage-chore-name {
  font-size: 14px;
  word-break: break-word;
}

.empty-state {
  color: var(--muted);
  font-size: 13px;
  padding: 16px 12px;
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 6px;
}

/* Reminders */
.reminder-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background-color: var(--bg);
  cursor: pointer;
}

.checkbox-input {
  width: 17px;
  height: 17px;
  accent-color: var(--green-3);
  cursor: pointer;
}

.reminder-time-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.pwa-tip {
  font-size: 12px;
  color: var(--muted);
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
}

/* Month View Calendar Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(1, 4, 9, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 200;
  animation: fadeIn 120ms ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.calendar-modal {
  width: 100%;
  max-width: 340px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

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

.cal-month-title {
  font-size: 15px;
  font-weight: 600;
}

.cal-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 8px;
}

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

.cal-day {
  position: relative;
  height: 38px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  font-family: inherit;
  transition: background-color 100ms ease, border-color 100ms ease;
}

.cal-day:hover:not(:disabled) {
  background-color: var(--surface-hover);
  border-color: var(--border);
}

.cal-day.is-outside {
  color: var(--muted);
  opacity: 0.4;
}

.cal-day:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.cal-day.is-today {
  border-color: var(--border);
  font-weight: 700;
}

.cal-day.is-selected {
  background-color: var(--accent);
  color: #ffffff;
  font-weight: 600;
}

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

.cal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

/* Admin Users & Metrics Modal */
.admin-modal {
  width: 100%;
  max-width: 560px;
  max-height: 80vh;
  overflow-y: auto;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}

.admin-users-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.admin-user-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background-color: var(--bg);
}

.admin-user-main {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.admin-user-header {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.admin-user-link {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.admin-user-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

.admin-user-meta {
  font-size: 12px;
  color: var(--muted);
}

.admin-user-chores {
  font-size: 12px;
  color: var(--text);
  margin-top: 2px;
}

/* Inputs, Buttons, Badges */
.input {
  background-color: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  font-family: inherit;
}

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

.input-sm {
  padding: 4px 8px;
  font-size: 12px;
}

.btn {
  background-color: var(--surface-hover);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: background-color 120ms ease, border-color 120ms ease;
}

.btn:hover:not(:disabled) {
  border-color: var(--muted);
}

.btn-sm {
  padding: 4px 10px;
  font-size: 12px;
}

.btn-primary {
  background-color: var(--accent-btn);
  border-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-btn-hover);
}

.btn-danger-icon {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 13px;
  cursor: pointer;
}

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

.btn-ghost {
  background: transparent;
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
  padding: 0;
}

.btn-link:hover {
  text-decoration: underline;
}

.badge {
  font-size: 12px;
  color: var(--muted);
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 10px;
  white-space: nowrap;
}

.badge.active {
  color: var(--green-4);
  border-color: var(--green-3);
}

.divider {
  height: 1px;
  background-color: var(--border);
  margin: 16px 0;
}

.storage-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
}

.muted {
  color: var(--muted);
}

code {
  font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, monospace;
  font-size: 11px;
}

/* Tooltip */
.graph-tooltip {
  position: fixed;
  pointer-events: none;
  background-color: #24292f;
  color: #ffffff;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 6px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  z-index: 100;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.12);
}