:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --text: #1a1d26;
  --muted: #5c6478;
  --accent: #5b7cfa;
  --accent-dark: #3d5ce0;
  --danger: #d64545;
  --border: #e2e6f0;
  --radius: 14px;
  --shadow: 0 8px 24px rgba(26, 29, 38, 0.08);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.app-shell {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100dvh;
  padding: 0 16px 32px;
}

.page-nav {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.page-nav-btn {
  flex: 1;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

.page-nav-btn:active {
  background: #eef1f8;
}

.page-nav-home {
  color: var(--accent);
}

.page-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin: 16px 0 12px;
}

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

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
}

.card-clickable {
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.card-clickable:active {
  transform: scale(0.99);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}

.card-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.card-sub {
  color: var(--muted);
  font-size: 0.88rem;
  margin-top: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  min-height: 44px;
}

.btn:active {
  background: var(--accent-dark);
}

.btn-secondary {
  background: #eef1f8;
  color: var(--text);
}

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

.btn-sm {
  padding: 8px 12px;
  min-height: 36px;
  font-size: 0.9rem;
}

.btn-block {
  width: 100%;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--muted);
}

.stepper-field {
  margin-bottom: 12px;
}

.stepper-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--muted);
}

.stepper {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: space-between;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 8px;
}

.stepper-value {
  flex: 1;
  text-align: center;
  font-size: 1.05rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.stepper-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 8px;
  background: #eef1f8;
  color: var(--text);
  font-size: 1.25rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
}

.stepper-btn:active {
  background: #dde3ef;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 1rem;
  background: #fff;
}

.field textarea {
  min-height: 80px;
  resize: vertical;
}

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

.checkbox-row input {
  width: 22px;
  height: 22px;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
  margin: 8px 0;
}

.top-bar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  padding: 12px 0 8px;
  border-bottom: 1px solid var(--border);
  margin: 0 -16px;
  padding-left: 16px;
  padding-right: 16px;
}

.baby-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.baby-name {
  font-size: 1.2rem;
  font-weight: 800;
  border: none;
  background: transparent;
  padding: 4px 0;
  flex: 1;
  min-width: 120px;
}

.nav-row {
  display: flex;
  gap: 8px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.day-group {
  margin: 16px 0 8px;
}

.day-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 8px;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.sticky-footer {
  position: sticky;
  bottom: 0;
  background: linear-gradient(transparent, var(--bg) 24%);
  padding: 16px 0 8px;
}

.login-hero {
  text-align: center;
  padding: 48px 0 24px;
}

.login-hero h1 {
  font-size: 1.75rem;
  margin: 0 0 8px;
}

.guardian-baby-block {
  margin-bottom: 20px;
}

.pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: #eef1f8;
  font-size: 0.8rem;
  margin-right: 6px;
  margin-bottom: 4px;
}