:root {
  color-scheme: light;
  --accent: #4A90D9;
  --accent-dark: #286fae;
  --bg: #ffffff;
  --card: #f5f7fa;
  --card-strong: #edf2f7;
  --text: #17212b;
  --muted: #687586;
  --border: #dce3eb;
  --danger: #b42318;
  --success: #287d3c;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button,
input,
textarea {
  font: inherit;
}

.shell {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

.app-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.25rem);
  line-height: 1;
  letter-spacing: 0;
}

h2,
h3 {
  margin: 0;
  letter-spacing: 0;
}

.header-link {
  color: var(--accent-dark);
  font-weight: 700;
  text-decoration: none;
}

.header-nav {
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

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

.toolbar {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.toggle-button {
  min-width: 96px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  padding: 9px 14px;
  cursor: pointer;
  font-weight: 700;
}

.toggle-button.is-active {
  background: var(--accent);
  color: #ffffff;
}

.selected-panel {
  display: grid;
  grid-template-rows: 0fr;
  overflow: hidden;
  margin-bottom: 20px;
  transition: grid-template-rows 220ms ease;
}

.selected-panel.has-child {
  grid-template-rows: 1fr;
}

.selected-panel > * {
  min-height: 0;
}

.panel-empty {
  display: none;
}

.log-form-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
  padding: 18px;
}

.form-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.band-pill {
  align-self: flex-start;
  border-radius: 999px;
  background: #e6f1fb;
  color: var(--accent-dark);
  padding: 5px 10px;
  font-size: 0.82rem;
  font-weight: 700;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  padding: 11px 12px;
}

textarea {
  min-height: 96px;
  resize: vertical;
}

.autocomplete-wrap {
  position: relative;
}

.suggestions {
  position: absolute;
  z-index: 5;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  display: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 12px 24px rgb(23 33 43 / 12%);
  overflow: hidden;
}

.suggestions.is-open {
  display: block;
}

.suggestion-button {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  padding: 10px 12px;
  text-align: left;
  cursor: pointer;
}

.suggestion-title {
  font-weight: 800;
}

.suggestion-band {
  color: var(--accent-dark);
  font-size: 0.86rem;
  font-weight: 800;
  white-space: nowrap;
}

.suggestion-button:last-child {
  border-bottom: 0;
}

.suggestion-button:hover,
.suggestion-button:focus {
  background: var(--card-strong);
}

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.primary-button {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  padding: 11px 18px;
  cursor: pointer;
  font-weight: 800;
}

.primary-button:hover {
  background: var(--accent-dark);
}

.status {
  min-height: 1.3em;
  color: var(--muted);
}

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

.status.success {
  color: var(--success);
}

.dashboard {
  margin: 10px 0 22px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.range-controls {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.range-button,
.secondary-button,
.delete-button {
  border: 0;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 800;
}

.range-button {
  min-width: 82px;
  background: transparent;
  color: var(--muted);
  padding: 8px 11px;
}

.range-button.is-active {
  background: var(--accent);
  color: #ffffff;
}

.date-controls {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.compact-field {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.compact-field input {
  min-width: 150px;
  padding: 9px 10px;
}

.secondary-button {
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--accent-dark);
  padding: 10px 14px;
}

.secondary-button:hover {
  border-color: var(--accent);
  background: #f0f7ff;
}

.dashboard-content {
  display: grid;
  gap: 14px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.metric-card,
.dashboard-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.metric-card {
  display: grid;
  gap: 4px;
  min-height: 116px;
  padding: 15px;
}

.metric-card strong {
  font-size: 2rem;
  line-height: 1;
}

.metric-label,
.metric-note,
.panel-heading span,
.bar-row-foot,
.insight-item span,
.band-stat span {
  color: var(--muted);
  font-size: 0.86rem;
}

.metric-label {
  font-weight: 800;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 12px;
}

.dashboard-panel {
  padding: 15px;
}

.panel-heading {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: baseline;
  margin-bottom: 12px;
}

.bar-list,
.insight-list,
.chip-list {
  display: grid;
  gap: 10px;
}

.bar-row {
  display: grid;
  gap: 8px;
}

.bar-row-top,
.bar-row-foot,
.insight-item {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.bar-row-top strong,
.bar-row-top .child-meta {
  display: block;
}

.bar-value {
  color: var(--accent-dark);
  font-weight: 800;
  white-space: nowrap;
}

.bar-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e5ebf1;
}

.bar-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.bar-row-foot {
  flex-wrap: wrap;
}

.insight-item {
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  padding: 11px;
}

.insight-item strong,
.insight-item span {
  display: block;
}

.insight-number {
  min-width: 58px;
  text-align: right;
}

.insight-number strong {
  color: var(--accent-dark);
  font-size: 1.3rem;
}

.chip-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.band-stat {
  display: grid;
  gap: 3px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #ffffff;
  padding: 11px;
}

.recent-logs {
  margin-top: 18px;
}

.recent-logs h3 {
  margin-bottom: 10px;
  font-size: 1rem;
}

.log-list,
.children-grid {
  display: grid;
  gap: 10px;
}

.log-item,
.child-button,
.message-card,
.parent-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.child-button {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
}

.child-button:hover,
.child-button.is-selected {
  border-color: var(--accent);
  background: #f0f7ff;
}

.child-name {
  font-weight: 800;
}

.child-meta {
  color: var(--muted);
  font-size: 0.9rem;
}

.band-group {
  margin-bottom: 20px;
}

.band-heading {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.log-item {
  padding: 13px 14px;
}

.log-topline {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.book-title {
  font-weight: 800;
}

.book-band-pill {
  display: inline-block;
  margin-left: 8px;
  border-radius: 999px;
  background: #e6f1fb;
  color: var(--accent-dark);
  padding: 3px 8px;
  font-size: 0.78rem;
  font-weight: 800;
  vertical-align: middle;
}

.log-date {
  color: var(--muted);
  white-space: nowrap;
  font-size: 0.88rem;
}

.log-notes {
  margin: 0;
  color: #364453;
  line-height: 1.45;
}

.log-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 10px;
}

.delete-button {
  background: #fff5f5;
  color: var(--danger);
  padding: 7px 10px;
}

.delete-button:hover {
  background: #ffe3e3;
}

.delete-button:disabled {
  cursor: progress;
  opacity: 0.7;
}

.message-card,
.parent-card {
  padding: 18px;
}

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

.parent-summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 18px;
}

@media (max-width: 640px) {
  .shell {
    width: min(100% - 24px, 980px);
    padding-top: 18px;
  }

  .app-header,
  .form-header,
  .section-header,
  .parent-summary,
  .log-topline,
  .child-button {
    flex-direction: column;
    align-items: stretch;
  }

  .header-nav {
    justify-content: flex-start;
  }

  .toolbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }

  .range-controls,
  .date-controls {
    width: 100%;
  }

  .range-controls,
  .metric-grid,
  .dashboard-grid,
  .chip-list {
    grid-template-columns: 1fr;
  }

  .range-controls {
    display: grid;
  }

  .compact-field,
  .compact-field input,
  .secondary-button {
    width: 100%;
  }

  .toggle-button {
    min-width: 0;
  }

  .log-date {
    white-space: normal;
  }

  .suggestion-button {
    flex-direction: column;
  }

  .suggestion-band {
    white-space: normal;
  }
}