:root {
  --bg: #0a0a0f;
  --surface: #131320;
  --surface-2: #1a1a2e;
  --surface-3: #232340;
  --border: #2a2a45;
  --text: #e8e8f0;
  --text-dim: #8888a8;
  --text-muted: #7878a0;
  --accent: #6c5ce7;
  --accent-glow: #7c6cf7;
  --accent-dim: rgba(108, 92, 231, 0.15);
  --success: #00cec9;
  --success-dim: rgba(0, 206, 201, 0.15);
  --warn: #fdcb6e;
  --danger: #e17055;
  --radius: 14px;
  --radius-sm: 8px;
  --font: "DM Sans", -apple-system, sans-serif;
  --mono: "DM Mono", monospace;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}
html,
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  height: 100%;
  overflow: hidden;
  touch-action: manipulation;
}
body {
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}
::-webkit-scrollbar {
  width: 0;
}
#app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 480px;
  margin: 0 auto;
}

.header {
  padding: 16px 20px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.header h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.header-greeting {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 1px;
  min-height: 16px;
}
.header-left {
  display: flex;
  flex-direction: column;
}
.header-sub {
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 400;
  margin-left: 6px;
}
.header-actions {
  display: flex;
  gap: 8px;
}
.icon-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 18px;
}
.icon-btn:active {
  background: var(--surface-2);
  transform: scale(0.92);
}
.week-nav {
  padding: 0 20px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}
.week-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  font-family: var(--mono);
  letter-spacing: 0.5px;
}
.nav-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 20px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all 0.15s;
}
.nav-btn:active {
  color: var(--text);
  background: var(--surface-2);
}
.nav-btn:disabled {
  opacity: 0.3;
}
.days-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  padding: 0 12px 8px;
  flex-shrink: 0;
}
.day-col {
  text-align: center;
  cursor: pointer;
  padding: 6px 0;
  border-radius: 12px;
  transition: all 0.15s;
}
.day-col.active {
  background: var(--accent-dim);
}
.day-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.day-num {
  font-size: 16px;
  font-weight: 700;
  margin-top: 2px;
  color: var(--text-dim);
}
.day-col.active .day-num {
  color: var(--accent-glow);
}
.day-col.today .day-num {
  color: var(--text);
}
.day-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  margin: 4px auto 0;
  background: transparent;
}
.day-col.has-data .day-dot {
  background: var(--success);
}
.day-col.active.has-data .day-dot {
  background: var(--accent-glow);
}
.progress-section {
  padding: 8px 20px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.ring-container {
  position: relative;
  width: 64px;
  height: 64px;
  flex-shrink: 0;
}
.ring-container svg {
  transform: rotate(-90deg);
}
.ring-bg {
  fill: none;
  stroke: var(--surface-2);
  stroke-width: 5;
}
.ring-fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 5;
  stroke-linecap: round;
  transition: stroke-dashoffset 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 700;
  font-family: var(--mono);
}
.progress-info {
  flex: 1;
}
.progress-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 2px;
}
.progress-subtitle {
  font-size: 12px;
  color: var(--text-dim);
}
.habits-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 0 12px 80px;
  -webkit-overflow-scrolling: touch;
}
.habit-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  margin-bottom: 6px;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.2s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.habit-card:active {
  transform: scale(0.98);
  background: var(--surface-2);
}
.habit-card.checked {
  border-color: rgba(0, 206, 201, 0.2);
}
.habit-card.just-checked .habit-emoji {
  animation: checkPop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.habit-card.checked::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--success-dim), transparent 60%);
  pointer-events: none;
}
.habit-card.off-day {
  opacity: 0.25;
  pointer-events: none;
}
.habit-emoji {
  font-size: 24px;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}
.habit-info {
  flex: 1;
  min-width: 0;
}
.habit-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.habit-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
  font-family: var(--mono);
  display: flex;
  gap: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.cadence-tag {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  background: var(--surface-3);
  color: var(--text-dim);
  font-weight: 500;
}
.habit-check {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  flex-shrink: 0;
}
.habit-card.checked .habit-check {
  background: var(--success);
  border-color: var(--success);
  animation: checkPop 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
@keyframes checkPop {
  0% {
    transform: scale(0.7);
  }
  50% {
    transform: scale(1.15);
  }
  100% {
    transform: scale(1);
  }
}
.check-icon {
  color: var(--bg);
  font-size: 16px;
  font-weight: 700;
  opacity: 0;
  transition: opacity 0.15s;
}
.habit-card.checked .check-icon {
  opacity: 1;
}
.bottom-nav {
  display: flex;
  padding: 8px 12px calc(12px + env(safe-area-inset-bottom, 0px));
  gap: 2px;
  flex-shrink: 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0 4px;
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 10px;
  transition: all 0.15s;
  font-family: var(--font);
}
.nav-tab.active {
  color: var(--accent-glow);
}
.nav-tab:active {
  background: var(--surface);
}
.nav-icon {
  font-size: 20px;
  margin-bottom: 2px;
}
.nav-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.page {
  display: none;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
}
.page.active {
  display: flex;
}
.page-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  -webkit-overflow-scrolling: touch;
}

/* Stats */
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
}
.stat-card-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}
.stat-row + .stat-row {
  border-top: 1px solid var(--border);
}
.stat-label {
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  flex-shrink: 1;
  overflow: hidden;
}
.stat-label span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.stat-value {
  font-size: 14px;
  font-weight: 700;
  font-family: var(--mono);
  flex-shrink: 0;
}
.stat-bar-bg {
  flex: 1;
  height: 6px;
  background: var(--surface-2);
  border-radius: 3px;
  margin: 0 10px;
  min-width: 30px;
}
.stat-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s ease;
}
.stat-big {
  font-size: 32px;
  font-weight: 700;
  font-family: var(--mono);
}
.stat-big-label {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
}
.stat-big-unit {
  font-size: 16px;
  font-weight: 400;
}
.stat-big-sub {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
  line-height: 1.3;
}
.stat-card-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 8px;
  line-height: 1.4;
}
.heatmap-dir {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
}
.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  justify-content: flex-end;
}
.hm-legend-lbl {
  font-size: 10px;
  color: var(--text-muted);
}
.hm-dot {
  width: 12px;
  height: 12px;
  aspect-ratio: 1;
  flex-shrink: 0;
}
.stat-legend {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
}
.stat-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 3px;
  vertical-align: middle;
}
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}
.stats-grid-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  text-align: center;
}
.heatmap {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  margin-top: 8px;
}
.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 3px;
  background: var(--surface-2);
}
.heatmap-cell.hm-level {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}
.hm-fill {
  width: 100%;
  border-radius: 2px 2px 0 0;
  transition: height 0.4s ease;
}

/* Diary */
.diary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 10px;
}
.diary-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-glow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.diary-textarea {
  width: 100%;
  min-height: 60px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  resize: vertical;
  line-height: 1.5;
  transition: border-color 0.15s;
}
.diary-textarea:focus {
  border-color: var(--accent);
}
.diary-textarea::placeholder {
  color: var(--text-muted);
}
.diary-saved {
  font-size: 11px;
  color: var(--success);
  margin-top: 6px;
  opacity: 0;
  transition: opacity 0.3s;
}
.diary-saved.show {
  opacity: 1;
}
.diary-date-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.diary-date {
  font-size: 14px;
  font-weight: 600;
  font-family: var(--mono);
}
/* Progress dots */
.diary-progress {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 20px;
}
.diary-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  transition:
    background 0.25s,
    transform 0.25s;
}
.diary-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}
.diary-dot.done {
  background: var(--success);
}
/* Step card */
.diary-step-card {
  background: var(--surface);
  border-left: none;
  border-right: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  padding: 24px 20px 16px;
  margin: 0 -16px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.diary-step-icon {
  font-size: 40px;
  margin-bottom: 12px;
  line-height: 1;
}
.diary-step-label {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
  line-height: 1.3;
  color: var(--text);
}
.diary-textarea-lg {
  min-height: 120px;
  text-align: left;
  width: 100%;
}
/* Step navigation */
.diary-step-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.diary-next-btn {
  flex: 1;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 14px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  transition: opacity 0.15s;
}
.diary-next-btn:active {
  opacity: 0.8;
}
.diary-back-btn {
  background: var(--surface-2);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  white-space: nowrap;
  transition: opacity 0.15s;
}
.diary-back-btn:active {
  opacity: 0.7;
}
/* Summary */
.diary-summary {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 16px;
  background: var(--surface);
  border-left: none;
  border-right: none;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  margin: 0 -16px 12px;
}
.diary-summary-icon {
  font-size: 48px;
  margin-bottom: 12px;
}
.diary-summary-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}
.diary-summary-meta {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}
.diary-suggest-wrap {
  width: 100%;
  text-align: left;
  margin-bottom: 20px;
}
.diary-suggest-lbl {
  font-size: 11px;
  font-weight: 600;
  color: var(--accent-glow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.diary-habit-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text);
  cursor: pointer;
  font-family: var(--font);
  text-align: left;
  transition: border-color 0.15s;
}
.diary-habit-chip:hover {
  border-color: var(--accent);
}
.chip-add {
  margin-left: auto;
  font-size: 12px;
  color: var(--accent);
  font-weight: 600;
}
.diary-edit-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font);
  padding: 14px 18px;
  transition: opacity 0.15s;
  width: 100%;
}
.diary-edit-btn:active {
  opacity: 0.7;
}

/* Tooltips */
#tt {
  position: fixed;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 12px;
  color: var(--text-dim);
  max-width: 260px;
  line-height: 1.6;
  z-index: 300;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.5);
  display: none;
  pointer-events: none;
}
.tt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: 9px;
  color: var(--text-muted);
  cursor: pointer;
  margin-left: 5px;
  vertical-align: middle;
  font-style: normal;
  line-height: 1;
  flex-shrink: 0;
  font-family: var(--font);
  padding: 0;
}
.tt-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.streak-tag {
  cursor: pointer;
}
/* Settings */
.settings-section {
  margin-bottom: 20px;
}
.settings-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
  padding-left: 4px;
}
.settings-list {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.setting-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.setting-item:active {
  background: var(--surface-2);
}
.setting-item + .setting-item {
  border-top: 1px solid var(--border);
}
.setting-left {
  display: flex;
  align-items: center;
  gap: 12px;
}
.setting-emoji {
  font-size: 20px;
}
.setting-label {
  font-size: 14px;
  font-weight: 500;
}
.setting-action {
  color: var(--text-muted);
  font-size: 16px;
}
.habit-edit-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  transition:
    background 0.25s ease,
    box-shadow 0.25s ease;
}
.habit-edit-item:hover {
  background: var(--surface-2);
  box-shadow:
    inset 0 0 0 1px rgba(108, 92, 231, 0.25),
    inset 0 0 14px rgba(108, 92, 231, 0.08);
}
.habit-edit-item:active {
  background: var(--surface-3);
  box-shadow:
    inset 0 0 0 1px rgba(108, 92, 231, 0.45),
    inset 0 0 20px rgba(108, 92, 231, 0.15);
}
.habit-edit-item + .habit-edit-item {
  border-top: 1px solid var(--border);
}
.habit-edit-info {
  flex: 1;
  min-width: 0;
}
.habit-edit-name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.habit-edit-cadence {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--mono);
}
.habit-delete-btn {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  flex-shrink: 0;
}
.habit-delete-btn:active {
  background: rgba(225, 112, 85, 0.15);
}
.lang-select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--surface-2)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%237878a0'/%3E%3C/svg%3E")
    no-repeat right 10px center;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  cursor: pointer;
  display: block;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  margin: 0 auto;
  padding: 8px 32px 8px 12px;
  transition:
    border-color 0.15s,
    box-shadow 0.15s;
  width: 100%;
  max-width: 220px;
}
.lang-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-dim);
  outline: none;
}
.lang-select option {
  background: var(--surface-2);
  color: var(--text);
}
/* Habit kit card */
.habit-kit {
  margin: 2px 0 10px;
  padding: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  animation: fadeIn 0.3s ease;
}
.hk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.hk-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
}
.hk-dismiss {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  padding: 0 2px;
}
.hk-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--border);
}
.hk-icon {
  font-size: 22px;
  flex-shrink: 0;
}
.hk-info {
  flex: 1;
  min-width: 0;
}
.hk-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.hk-hook {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  line-height: 1.3;
}
.hk-cta {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-glow);
  text-decoration: none;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 5px 10px;
  white-space: nowrap;
}
.hk-cta:hover {
  background: var(--accent);
  color: #fff;
}

.habit-fact {
  margin: 2px 0 6px;
  padding: 10px 14px;
  background: var(--surface-2);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
  animation: fadeIn 0.3s ease;
}

.first-habit-cta {
  margin: 16px 0 8px;
  padding: 16px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  text-align: center;
  animation: fadeIn 0.4s ease;
}
.fhc-icon {
  font-size: 24px;
  margin-bottom: 6px;
}
.fhc-text {
  font-size: 13px;
  color: var(--accent-glow);
  font-weight: 500;
  line-height: 1.4;
}
.age-chips {
  display: flex;
  gap: 0;
  margin-top: 4px;
}
.age-chip {
  flex: 1;
  padding: 8px 2px;
  border-radius: 0;
  font-size: 12px;
  font-weight: 600;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-right: none;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  text-align: center;
  position: relative;
}
.age-chip:first-child {
  border-radius: 20px 0 0 20px;
}
.age-chip:last-child {
  border-radius: 0 20px 20px 0;
  border-right: 1px solid var(--border);
}
.age-chip.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-glow);
  z-index: 1;
}
.modal-btn.primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
}

/* Motivational banner */
#motiv-banner {
  position: fixed;
  left: 0;
  right: 0;
  bottom: calc(72px + var(--safe-bottom));
  z-index: 200;
  pointer-events: none;
  display: flex;
  justify-content: center;
  padding: 0 16px;
}
.motiv-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  max-width: 420px;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: motivSlideUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}
.motiv-card.hide {
  animation: motivSlideDown 0.3s ease forwards;
}
.motiv-emoji {
  font-size: 24px;
  flex-shrink: 0;
}
.motiv-text {
  font-size: 13px;
  line-height: 1.4;
  color: var(--text);
}
@keyframes motivSlideUp {
  from {
    transform: translateY(120%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}
@keyframes motivSlideDown {
  from {
    transform: translateY(0);
    opacity: 1;
  }
  to {
    transform: translateY(120%);
    opacity: 0;
  }
}
@keyframes celebrate {
  0% {
    transform: scale(1);
  }
  30% {
    transform: scale(1.25) rotate(-5deg);
  }
  60% {
    transform: scale(1.15) rotate(5deg);
  }
  100% {
    transform: scale(1);
  }
}
.ring-celebrate #ring-fill {
  stroke: var(--success);
  animation: celebratePulse 0.6s ease;
}
@keyframes celebratePulse {
  0%,
  100% {
    filter: drop-shadow(0 0 0px var(--success));
  }
  50% {
    filter: drop-shadow(0 0 10px var(--success));
  }
}

.sex-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}
.sex-btn {
  padding: 8px 14px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  background: var(--surface-2);
  color: var(--text-dim);
  border: none;
  cursor: pointer;
  transition: all 0.15s;
}
.sex-btn:first-child {
  border-right: 1px solid var(--border);
}
.sex-btn:last-child {
  grid-column: 1 / -1;
  border-top: 1px solid var(--border);
}
.sex-btn.active {
  background: var(--accent-dim);
  color: var(--accent-glow);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: none;
  align-items: flex-end;
  animation: fadeIn 0.2s;
}
.modal-overlay.show {
  display: flex;
}
.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  width: 100%;
  padding: 20px 20px calc(32px + env(safe-area-inset-bottom, 0px));
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  max-height: 100dvh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
}
@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
}
.modal-handle {
  width: 36px;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  margin: 0 auto 16px;
}
.modal h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.modal-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 16px;
  font-family: var(--font);
  outline: none;
  margin-bottom: 14px;
  transition: border-color 0.15s;
}
.modal-input:focus {
  border-color: var(--accent);
}
.modal-input::placeholder {
  color: var(--text-muted);
}
.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.emoji-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-bottom: 16px;
  max-height: 130px;
  overflow-y: auto;
  padding: 2px;
}
.emoji-option {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  border-radius: 9px;
  border: 2px solid transparent;
  background: var(--surface-2);
  cursor: pointer;
  transition: all 0.15s;
  flex-shrink: 0;
}
.emoji-option.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.emoji-option:active {
  transform: scale(0.9);
}
.cadence-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 10px;
}
.cadence-chip {
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}
.cadence-chip.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-glow);
}
.cadence-chip:active {
  transform: scale(0.95);
}
.day-chips {
  display: flex;
  gap: 6px;
  margin-top: 10px;
}
.day-chip {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 600;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}
.day-chip.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-glow);
}
.day-chip:active {
  transform: scale(0.9);
}
.freq-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.freq-input {
  width: 56px;
  padding: 10px;
  text-align: center;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 16px;
  font-family: var(--mono);
  outline: none;
}
.freq-input:focus {
  border-color: var(--accent);
}
.freq-label {
  font-size: 14px;
  color: var(--text-dim);
}
.period-chips {
  display: flex;
  gap: 6px;
}
.period-chip {
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
}
.period-chip.selected {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent-glow);
}
.modal-btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
}
.modal-btn.primary {
  background: var(--accent);
  color: #fff;
}
.modal-btn.primary:active {
  background: var(--accent-glow);
  transform: scale(0.98);
}
.modal-btn.secondary {
  background: var(--surface-2);
  color: var(--text-dim);
  margin-top: 8px;
  transition:
    background 0.2s,
    color 0.2s;
}
.modal-btn.secondary.done-state {
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 13px;
}
.modal-done-bar {
  display: flex;
  position: sticky;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--accent);
  color: #fff;
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0 0 var(--radius) var(--radius);
  justify-content: center;
  gap: 8px;
  align-items: center;
  user-select: none;
  opacity: 0;
  transition:
    max-height 0.25s ease,
    opacity 0.2s,
    padding 0.25s;
}
.modal-done-bar.show {
  max-height: 60px;
  padding: 14px 20px;
  opacity: 1;
}
.modal-done-arrow {
  font-size: 13px;
  opacity: 0.85;
}
.toast {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 10px 20px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  z-index: 200;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}
.toast.show {
  transform: translateX(-50%) translateY(0);
}
.suggestions {
  margin-bottom: 16px;
}
.suggestion-cat {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin: 10px 0 6px;
  padding-left: 2px;
}
.suggestion-cat:first-child {
  margin-top: 0;
}
.suggestion-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 5px;
  cursor: pointer;
  transition: all 0.15s;
}
.suggestion-item:active {
  transform: scale(0.98);
  background: var(--surface-3);
}
.s-emoji {
  font-size: 18px;
  flex-shrink: 0;
}
.s-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.s-name {
  font-size: 13px;
  font-weight: 500;
}
.s-meta {
  display: flex;
  align-items: center;
  gap: 5px;
}
.s-cad {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--mono);
}
.s-add {
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 92, 231, 0.15);
  border-radius: 8px;
  transition:
    background 0.15s,
    transform 0.1s;
}
.suggestion-item:hover .s-add {
  background: rgba(108, 92, 231, 0.28);
}
.suggestion-item:active .s-add {
  transform: scale(0.9);
}
.phase-tag {
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  font-family: var(--mono);
  cursor: pointer;
}
.phase-learning {
  background: rgba(253, 203, 110, 0.15);
  color: var(--warn);
}
.phase-building {
  background: rgba(108, 92, 231, 0.15);
  color: var(--accent-glow);
}
.phase-forming {
  background: rgba(0, 206, 201, 0.15);
  color: var(--success);
}
.phase-formed {
  background: rgba(0, 206, 201, 0.25);
  color: var(--success);
}
.morning-tag {
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  background: rgba(253, 203, 110, 0.12);
  color: var(--warn);
  font-family: var(--mono);
}
.own-badge {
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 9px;
  background: var(--accent-dim);
  color: var(--accent-glow);
  font-family: var(--mono);
}
.s-for-you {
  font-size: 9px;
  color: var(--accent-glow);
  font-weight: 700;
  background: var(--accent-dim);
  padding: 1px 5px;
  border-radius: 4px;
  flex-shrink: 0;
}
.morning-chip {
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font);
  display: inline-block;
}
.morning-chip.selected {
  background: rgba(253, 203, 110, 0.12);
  border-color: var(--warn);
  color: var(--warn);
}
.habit-section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 4px 2px;
  color: var(--warn);
}
.onboarding {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 28px;
  text-align: center;
  flex: 1;
}
.onb-icon {
  font-size: 56px;
  margin-bottom: 16px;
  animation: float 3s ease-in-out infinite;
}
@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}
.onb-title {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
}
.onb-quote {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 6px;
  font-style: italic;
  max-width: 320px;
}
.onb-attr {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.onb-btn {
  padding: 14px 32px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 12px;
  width: 100%;
  max-width: 280px;
}
.onb-btn:active {
  transform: scale(0.97);
}
.onb-btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.onb-hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 8px;
}
/* ── Welcome / onboarding modal — full-screen on mobile ── */
#welcome-modal {
  align-items: stretch;
  background: var(--bg);
  backdrop-filter: none;
  animation: fadeIn 0.25s ease;
}
.welcome-modal-inner {
  display: flex;
  flex-direction: column;
  height: 100vh; /* fallback for browsers without dvh support */
  height: 100dvh;
  max-height: none;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  border-radius: 0;
  padding: 0;
  overflow: hidden;
  animation: none;
}
.welcome-hero {
  line-height: 0;
  margin: 0 -24px 20px;
}
.welcome-hero img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  object-position: center 30%;
}
.welcome-scroll {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0 24px 12px;
}
.welcome-cta {
  flex-shrink: 0;
  padding: 12px 24px calc(20px + env(safe-area-inset-bottom, 0px));
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.welcome-cta .modal-btn {
  margin: 0;
  width: 100%;
}

/* Welcome modal fields */
.welcome-field {
  margin-bottom: 16px;
}
.welcome-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
/* Import modal */
.import-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.import-option:active {
  background: var(--surface-3);
  transform: scale(0.98);
}
.import-option.selected {
  border-color: var(--accent);
  background: var(--accent-dim);
}
.io-icon {
  font-size: 22px;
}
.io-info {
  flex: 1;
}
.io-title {
  font-size: 14px;
  font-weight: 600;
}
.io-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}
.io-check {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: all 0.15s;
}
.import-option.selected .io-check {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ── Desktop / tablet sidebar layout ── */
@media (min-width: 768px) {
  body {
    background: var(--surface);
  }
  #app {
    display: grid;
    grid-template-columns: 200px 1fr;
    grid-template-rows: 1fr;
    max-width: 1400px;
    height: 100vh;
    background: var(--bg);
    box-shadow:
      0 0 0 1px var(--border),
      0 8px 40px rgba(0, 0, 0, 0.4);
  }

  /* ── Sidebar nav ── */
  .bottom-nav {
    grid-column: 1;
    grid-row: 1;
    flex-direction: column;
    align-items: stretch;
    height: 100vh;
    border-top: none;
    border-right: 1px solid var(--border);
    padding: 28px 14px calc(28px + env(safe-area-inset-bottom, 0px));
    gap: 4px;
    overflow-y: auto;
  }
  .bottom-nav::before {
    content: "habit.io";
    display: block;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text);
    padding: 4px 14px 24px;
  }
  .nav-tab {
    flex: none;
    flex-direction: row;
    justify-content: flex-start;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 12px;
    text-align: left;
  }
  .nav-icon {
    font-size: 20px;
    margin-bottom: 0;
    width: 24px;
    text-align: center;
    line-height: 1;
  }
  .nav-label {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0;
  }
  .nav-tab.active {
    background: var(--surface-2);
  }

  /* ── Pages ── */
  .page {
    grid-column: 2;
    grid-row: 1;
    overflow: hidden;
  }
  .page.active {
    display: flex;
  }
  .page .header {
    padding: 28px 32px 16px;
  }
  .page .header h1 {
    font-size: 26px;
  }
  .page-scroll {
    padding: 16px 32px 32px;
  }

  /* ── Habit cards: 2-column grid ── */
  .habits-scroll {
    padding: 0 32px 80px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    align-content: start;
  }
  /* Section labels and CTA span full width */
  .habit-section-label,
  .habit-kit,
  .habit-fact,
  .first-habit-cta,
  .onboarding,
  .motiv-card {
    grid-column: 1 / -1;
  }
  .habit-card {
    margin-bottom: 0;
    padding: 18px 20px;
  }
  .habit-emoji {
    font-size: 28px;
    width: 40px;
  }
  .habit-name {
    font-size: 15px;
  }

  /* ── Week strip: bigger day cols ── */
  .week-nav {
    padding: 12px 32px 8px;
  }
  .days-header {
    padding: 0 32px 12px;
    gap: 8px;
  }
  .day-col {
    padding: 10px 6px;
    font-size: 13px;
    border-radius: 12px;
  }
  .day-num {
    font-size: 20px;
    width: 38px;
    height: 38px;
  }

  /* ── Progress header ── */
  .progress-header {
    margin: 8px 32px 16px;
  }

  /* ── Diary full-bleed cards ── */
  .diary-step-card,
  .diary-summary {
    margin-left: -32px;
    margin-right: -32px;
    padding-left: 32px;
    padding-right: 32px;
  }

  /* ── Stat cards: 2-column grid ── */
  #stats-content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    align-content: start;
    padding: 16px 32px 32px;
    overflow-y: auto;
  }
  #stats-content .stat-card {
    margin-bottom: 0;
  }
  #stats-content .stat-card:first-child {
    grid-column: 1 / -1;
  }

  /* ── Modal: centered dialog within content column ── */
  .modal {
    border-radius: 20px;
    max-width: 560px;
    margin: auto;
    max-height: 80vh;
  }
  .modal-overlay {
    align-items: center;
    justify-content: center;
    padding-left: 200px; /* shift center-point into content column */
  }

  /* ── Tracker header: hide app title (shown in sidebar), keep greeting ── */
  #page-tracker .header h1 {
    display: none;
  }
  #page-tracker .header {
    justify-content: space-between;
    padding-top: 20px;
  }
  /* On desktop, FAB sits in the right content column, not full-viewport center */
  .fab {
    left: calc(200px + (100vw - 200px) / 2);
    bottom: 24px;
  }
}

@media (min-width: 1200px) {
  #app {
    grid-template-columns: 240px 1fr;
  }
  .fab {
    left: calc(240px + (100vw - 240px) / 2);
  }
  .modal-overlay {
    padding-left: 240px;
  }
  .habit-group-items {
    grid-template-columns: repeat(3, 1fr);
  }
  .page .header h1 {
    font-size: 28px;
  }
}

/* Floating action button */
.fab {
  position: fixed;
  bottom: calc(72px + var(--safe-bottom) + 14px);
  left: 50%;
  transform: translateX(-50%);
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 28px;
  line-height: 1;
  font-weight: 300;
  cursor: pointer;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 18px rgba(108, 92, 231, 0.45);
  transition:
    transform 0.15s,
    box-shadow 0.15s;
}
.fab.visible {
  display: flex;
}
.fab:active {
  transform: translateX(-50%) scale(0.88);
  box-shadow: 0 2px 8px rgba(108, 92, 231, 0.3);
}

/* Consent banner */
.consent-banner {
  position: fixed;
  bottom: calc(72px + var(--safe-bottom) + 8px);
  left: 12px;
  right: 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  z-index: 150;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}
.consent-text {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
}
.consent-btns {
  display: flex;
  gap: 8px;
}
.consent-btn {
  flex: 1;
  padding: 9px 0;
  border-radius: 10px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.consent-btn.accept {
  background: var(--accent);
  color: #fff;
}
.consent-btn.decline {
  background: var(--surface-3, var(--surface-2));
  color: var(--text-muted);
}
/* Desktop: center consent banner in content column, after sidebar */
@media (min-width: 900px) {
  .consent-banner {
    left: calc(200px + (100vw - 200px - 480px) / 2);
    right: auto;
    width: 480px;
    bottom: 24px;
  }
}
@media (min-width: 1200px) {
  .consent-banner {
    left: calc(240px + (100vw - 240px - 480px) / 2);
  }
}