:root {
  --bg: #f4f6f5;
  --surface: #ffffff;
  --text: #1c2321;
  --text-muted: #5b6864;
  --border: #dde3e0;
  --accent: #2f6f4f;
  --accent-light: #e4f1ea;
  --danger: #b3492f;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.06), 0 4px 12px rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14181a;
    --surface: #1e2422;
    --text: #eef2ef;
    --text-muted: #9aa8a2;
    --border: #2c3532;
    --accent: #6fbf94;
    --accent-light: #223730;
    --danger: #e2836a;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 16px rgba(0, 0, 0, 0.25);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  max-width: 760px;
  margin: 0 auto;
  /* env(safe-area-inset-*) is 0 in a normal browser (these are then just
     the original 24px/16px/64px), but keeps content clear of the notch/
     Dynamic Island and home indicator when running full-screen in the
     Capacitor iOS wrapper - see capacitor.config.json. */
  padding-top: max(24px, env(safe-area-inset-top));
  padding-right: max(16px, env(safe-area-inset-right));
  padding-bottom: max(64px, calc(64px + env(safe-area-inset-bottom)));
  padding-left: max(16px, env(safe-area-inset-left));
}

/* Auth screen */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

/* [hidden] and .auth-screen{display:flex} have equal specificity, so without
   this the later rule (this one) would always win and the screen would stay
   visible even when JS sets the hidden attribute after sign-in. */
.auth-screen[hidden] {
  display: none;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 28px 24px;
  width: 100%;
  max-width: 380px;
}

.auth-card h1 {
  margin: 0 0 4px;
  font-size: 1.4rem;
}

.auth-actions {
  margin-top: 4px;
}

.auth-actions .btn-primary {
  width: 100%;
}

.auth-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
}

.link-btn {
  font: inherit;
  font-size: 0.85rem;
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
  padding: 2px;
}

.auth-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 4px 0;
}

.auth-status {
  color: var(--accent);
  font-size: 0.85rem;
  margin: 4px 0;
}

.sync-status {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--text-muted);
  vertical-align: middle;
}

.sync-status.sync-error {
  color: var(--danger);
}

/* Account: header + friends */
.account-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.subheading {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin: 18px 0 8px;
}

.friend-add-form {
  display: flex;
  gap: 8px;
}

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

.friend-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.friend-list:empty::after {
  content: "None yet.";
  color: var(--text-muted);
  font-size: 0.85rem;
}

.friend-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.9rem;
}

.friend-actions {
  display: flex;
  gap: 6px;
}

.friend-actions button {
  padding: 5px 10px;
  font-size: 0.8rem;
}

.app-header h1 {
  margin: 0 0 4px;
  font-size: 1.6rem;
}

.subtitle {
  margin: 0 0 24px;
  color: var(--text-muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 {
  margin: 0 0 14px;
  font-size: 1.05rem;
}

.optional-badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 6px;
  vertical-align: middle;
}

.week-picker {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 14px;
}

.week-picker-btn {
  font: inherit;
  font-size: 0.85rem;
  background: var(--bg);
  color: var(--text-muted);
  border: none;
  padding: 7px 14px;
  cursor: pointer;
}

.week-picker-btn + .week-picker-btn {
  border-left: 1px solid var(--border);
}

.week-picker-btn.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.row-footprint.counted {
  color: var(--text);
  font-weight: 600;
}

.table-caption {
  text-align: left;
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 14px;
  caption-side: top;
}

.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.tab-btn {
  font: inherit;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  padding: 10px 14px;
  cursor: pointer;
  white-space: nowrap;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  font-weight: 600;
}

.inline-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.95rem;
}

.inline-field input {
  width: 100px;
}

input, select {
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
}

.tracker-table {
  width: 100%;
  border-collapse: collapse;
}

.tracker-table th {
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
}

.tracker-table td {
  padding: 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.tracker-table tr:last-child td {
  border-bottom: none;
}

.tracker-table tr.is-today td {
  background: var(--accent-light);
}

.tracker-table tr.is-today .day-badge {
  background: var(--accent);
  color: #fff;
}

.day-col {
  width: 56px;
}

.footprint-col {
  width: 90px;
  text-align: right;
}

.confirm-col {
  width: 44px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.day-confirm-cell {
  text-align: center;
}

.day-confirm-btn {
  position: relative;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.day-confirm-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.day-confirm-btn.confirmed {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.day-confirm-btn.pop {
  animation: day-confirm-pop 0.4s ease;
}

.day-confirm-btn.pop::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: day-confirm-ripple 0.5s ease-out;
}

@keyframes day-confirm-pop {
  0% { transform: scale(0.7); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

@keyframes day-confirm-ripple {
  0% { opacity: 0.6; transform: scale(0.6); }
  100% { opacity: 0; transform: scale(1.6); }
}

@media (prefers-reduced-motion: reduce) {
  .day-confirm-btn.pop,
  .day-confirm-btn.pop::after {
    animation: none;
  }
}

.day-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: default;
}

.mode-select {
  width: 100%;
  max-width: 220px;
}

.diet-day-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.diet-day-row:first-child {
  padding-top: 0;
}

.diet-day-row:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.diet-day-row.is-today {
  background: var(--accent-light);
  border-radius: 10px;
  padding: 10px;
  margin: 0 -10px;
}

.diet-day-row.is-today .day-badge {
  background: var(--accent);
  color: #fff;
}

.diet-day-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.diet-day-head .row-footprint {
  margin-left: auto;
}

.diet-cell {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.diet-type-row, .portion-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.diet-opt {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
}

.diet-opt.meat-opt {
  font-size: 1.15rem;
}

.diet-opt:hover {
  border-color: var(--accent);
}

.diet-opt.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.portion-row {
  margin-left: 4px;
}

.portion-opt {
  font: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
  padding: 0;
}

.portion-opt:hover {
  border-color: var(--accent);
}

.portion-opt.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.eat-row {
  display: flex;
  gap: 4px;
  margin-left: 4px;
}

.eat-opt {
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  height: 22px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text-muted);
  cursor: pointer;
}

.eat-opt:hover {
  border-color: var(--accent);
}

.eat-opt.active {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.diet-summary {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.alcohol-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.alcohol-fill {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.alcohol-fill-opt {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  color: var(--text-muted);
  opacity: 0.45;
}

.alcohol-fill-opt svg {
  width: 24px;
  height: 24px;
}

.alcohol-fill-opt:hover {
  opacity: 0.75;
}

.alcohol-fill-opt.active {
  color: var(--accent);
  opacity: 1;
}

.alcohol-count {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.alcohol-other {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.alcohol-other .field {
  flex: 1;
  min-width: 140px;
}

.row-footprint {
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
}

.summary-totals {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.stat {
  flex: 1;
  min-width: 130px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}

.stat-highlight {
  background: var(--accent-light);
  border-color: var(--accent);
}

.avg-week-savings {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.avg-week-savings.avg-week-good {
  background: var(--accent-light);
  border-color: var(--accent);
}

.avg-week-savings.avg-week-good .stat-value {
  color: var(--accent);
}

.avg-week-savings.avg-week-bad {
  border-color: var(--danger);
}

.avg-week-savings.avg-week-bad .stat-value {
  color: var(--danger);
}

.app-average-figure {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}

.app-average-figure + .app-average-figure {
  margin-top: 10px;
}

.stat .week-diff {
  display: block;
  margin-top: 4px;
}

.stat-percentile {
  display: block;
  margin-top: 4px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 12px;
}

.comparison-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px;
}

.comparison-value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.comparison-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.comparison-item .week-diff {
  display: block;
  margin-top: 6px;
}

.savings-breakdown {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.unaccounted-list {
  margin: 0 0 12px;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text);
}

.savings-breakdown li {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  gap: 8px;
  max-width: 320px;
}

.savings-breakdown li span:last-child {
  font-variant-numeric: tabular-nums;
  color: var(--text);
  font-weight: 600;
}

.stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.budget-chart {
  padding-top: 4px;
}

.budget-chart-svg {
  width: 100%;
  display: block;
}

.budget-predicted-line {
  fill: none;
  stroke: var(--text-muted);
  stroke-width: 1.4;
  stroke-dasharray: 4 3;
}

.budget-actual-line {
  fill: none;
  stroke-width: 2.4;
  stroke-linejoin: round;
  stroke-linecap: round;
  stroke: var(--accent);
}

.budget-chart-svg.over-track .budget-actual-line {
  stroke: var(--danger);
}

.budget-actual-dot {
  fill: var(--accent);
  stroke: var(--surface);
  stroke-width: 1.2;
}

.budget-chart-svg.over-track .budget-actual-dot {
  fill: var(--danger);
}

.budget-area {
  fill: url(#budget-area-fill);
}

.budget-fill-stop-start {
  stop-color: var(--accent);
  stop-opacity: 0.28;
}

.budget-fill-stop-end {
  stop-color: var(--accent);
  stop-opacity: 0;
}

.budget-chart-svg.over-track .budget-fill-stop-start {
  stop-color: var(--danger);
  stop-opacity: 0.22;
}

.budget-chart-svg.over-track .budget-fill-stop-end {
  stop-color: var(--danger);
  stop-opacity: 0;
}

.budget-zero-line {
  stroke: var(--border);
  stroke-width: 1;
  stroke-dasharray: 2 2;
}

.budget-day-label, .budget-axis-label {
  font-size: 7px;
  fill: var(--text-muted);
}

.budget-day-label.is-today {
  fill: var(--accent);
  font-weight: 700;
}

.budget-chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 6px 0 16px;
}

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

.legend-swatch {
  width: 14px;
  height: 3px;
  border-radius: 2px;
  display: inline-block;
}

.legend-swatch-target {
  background-image: linear-gradient(to right, var(--text-muted) 50%, transparent 50%);
  background-size: 6px 3px;
}

.legend-swatch-actual.on-track {
  background: var(--accent);
}

.legend-swatch-actual.over-track {
  background: var(--danger);
}

.assumptions {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 16px;
}

.btn-primary, .btn-secondary {
  font: inherit;
  border-radius: 8px;
  padding: 9px 16px;
  cursor: pointer;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.goal-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: -8px 0 10px;
}

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

/* Weeks grid (page 2) */
.weeks-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(135px, 1fr));
  gap: 10px;
  max-width: 700px;
}

.week-box {
  position: relative;
  text-align: left;
  font: inherit;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  cursor: pointer;
  min-height: 84px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.week-box:hover {
  border-color: var(--accent);
}

.week-box.is-current {
  box-shadow: 0 0 0 2px var(--accent) inset;
}

.week-box.status-good { border-left-color: #3a9d5d; }
.week-box.status-warn { border-left-color: #d0a020; }
.week-box.status-high { border-left-color: var(--danger); }
.week-box.status-empty { border-left-color: var(--border); opacity: 0.6; }

.week-box-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  padding-right: 28px;
}

.week-box-bottom {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px;
}

.week-box-total {
  font-size: 1.1rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.week-diff {
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.week-diff-over {
  color: var(--danger);
}

.week-diff-under {
  color: var(--accent);
}

.week-box-badge {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 0.65rem;
  color: var(--accent);
  font-weight: 600;
}

.week-box-badge-full {
  background: var(--accent-light);
  border-radius: 999px;
  padding: 2px 6px;
}

/* Leaderboard (page 3) */
.leaderboard-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.leaderboard-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
}

.leaderboard-row.is-current {
  border-color: var(--accent);
  background: var(--accent-light);
}

.leaderboard-rank {
  font-weight: 700;
  width: 28px;
  text-align: center;
}

.leaderboard-info {
  flex: 1;
}

.leaderboard-week-label {
  font-weight: 600;
}

.leaderboard-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.leaderboard-total-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  text-align: right;
}

.leaderboard-total {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.leaderboard-winner {
  background: var(--accent-light);
  border: 1px solid var(--accent);
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 600;
  margin: 0 0 12px;
}

.leaderboard-sub-note {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 400;
}

.empty-note {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Account (page 4) */
.account-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.file-btn {
  display: inline-flex;
  align-items: center;
}

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

.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 10;
}

.modal-backdrop.open {
  display: flex;
}

.modal {
  background: var(--surface);
  border-radius: 12px;
  padding: 20px;
  width: 100%;
  max-width: 340px;
  box-shadow: var(--shadow);
  max-height: 85vh;
  overflow-y: auto;
}

.modal-wide {
  max-width: 480px;
}

.week-detail-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-bottom: 8px;
}

.week-detail-table th {
  text-align: left;
  color: var(--text-muted);
  font-weight: 600;
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
}

.week-detail-table td {
  padding: 4px 6px;
  border-bottom: 1px solid var(--border);
}

.modal h3 {
  margin: 0 0 14px;
  font-size: 1rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

.field-checkbox {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.field-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 6px;
}