:root {
  color-scheme: light dark;
  --bg: #f2f2f7;
  --surface: #ffffff;
  --border: #e0e0e5;
  --text: #1c1c1e;
  --text-muted: #8e8e93;
  --accent: #007aff;
  --accent-dark: #0062cc;
  --accent-text: #ffffff;
  --danger: #ff3b30;
  --success-bg: #d1fae5;
  --success-text: #065f46;
  --radius: 13px;
  --radius-sm: 10px;
  --btn-h: 56px;
  --shadow: 0 1px 6px rgba(0, 0, 0, 0.08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1c1c1e;
    --surface: #2c2c2e;
    --border: #3a3a3c;
    --text: #f2f2f7;
    --text-muted: #8e8e93;
    --accent: #0a84ff;
    --accent-dark: #0070e0;
    --accent-text: #ffffff;
    --danger: #ff453a;
    --success-bg: #0d3321;
    --success-text: #4ade80;
    --shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
button, input, textarea, select { font-family: inherit; }

body {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  font-family: -apple-system, 'SF Pro Text', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  padding-top: env(safe-area-inset-top);
  -webkit-text-size-adjust: 100%;
  overflow: hidden;
}

.offline-banner {
  flex-shrink: 0;
  background: #1c1c1e;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 500;
  text-align: center;
  padding: 10px 16px;
  line-height: 1.4;
}

.offline-banner--sync-disabled {
  background: #7c2d12;
}

main {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: scroll;
  -webkit-overflow-scrolling: touch;
  position: relative;
}

main::before {
  content: '';
  position: sticky;
  top: 0;
  display: block;
  height: 16px;
  margin-bottom: -16px;
  background: linear-gradient(to bottom, var(--bg) 0%, transparent 100%);
  pointer-events: none;
  z-index: 10;
}

.setup-screen {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 18px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.setup-panel {
  width: min(100%, 440px);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}

.setup-panel h1 {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: 18px;
  color: var(--text);
}

.setup-label,
.remember-row {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-left: 4px;
}

.access-key-input {
  width: 100%;
  min-height: 88px;
  resize: vertical;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.35;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.access-key-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.18);
}

.remember-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 4px;
  text-transform: none;
  letter-spacing: 0;
}

.remember-row input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.setup-status {
  min-height: 22px;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--text-muted);
}

.tab-panel { display: none; padding: 16px; }
.tab-panel.active { display: block; }

.tab-bar {
  flex-shrink: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: rgba(255, 255, 255, 0.92);
  border-top: 0.5px solid rgba(0, 0, 0, 0.18);
  padding-bottom: env(safe-area-inset-bottom);
}

@media (prefers-color-scheme: dark) {
  .tab-bar {
    background: rgba(28, 28, 30, 0.92);
    border-top-color: rgba(255, 255, 255, 0.12);
  }
}

.tab-btn {
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  padding: 10px 0;
  color: var(--text-muted);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: color 0.15s;
}

.tab-btn.active { color: var(--accent); }
.tab-icon { font-size: 1.35rem; line-height: 1; }
.tab-label { font-size: 0.65rem; font-weight: 500; }

.form-group { margin-bottom: 22px; }

.form-group h2,
.field-label,
.settings-section h2 {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding-left: 4px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.sel-btn {
  flex: 1;
  min-width: 100px;
  height: var(--btn-h);
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  box-shadow: var(--shadow);
  transition: background 0.12s, color 0.12s, border-color 0.12s;
}

.sel-btn:active { opacity: 0.7; }
.sel-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.sel-btn.selected {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.amount-input {
  width: 100%;
  height: 64px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0 20px;
  font-size: clamp(16px, 6vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  text-align: right;
  box-shadow: var(--shadow);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.amount-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.18);
}

.amount-input::placeholder { color: var(--border); }
.amount-input--locked { color: var(--text-muted); border-color: var(--border); opacity: 0.6; }

.form-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.btn {
  flex: 1;
  height: var(--btn-h);
  border: none;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  box-shadow: var(--shadow);
  transition: opacity 0.15s;
}

.btn:active { opacity: 0.75; }
.btn:disabled { opacity: 0.32; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-text); }
.btn-primary:not(:disabled):active { background: var(--accent-dark); }
.btn-secondary { background: var(--surface); color: var(--text); border: 1.5px solid var(--border); }

.confirmation {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--success-bg);
  color: var(--success-text);
  font-weight: 600;
  font-size: 0.95rem;
  text-align: center;
}

.log-entry-wrap { margin-bottom: 10px; }

.log-entry {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 14px 16px;
  box-shadow: var(--shadow);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  border: 2px solid transparent;
  transition: border-color 0.15s;
}

.log-entry-wrap.open .log-entry { border-color: var(--baby-colour, var(--accent)); }

.log-entry-actions,
.settings-row-actions {
  display: flex;
  gap: 8px;
  margin-top: 6px;
  padding: 0 2px;
}

.log-action-btn {
  flex: 1;
  height: 44px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  color: var(--accent);
  box-shadow: var(--shadow);
}

.log-action-btn:active { opacity: 0.65; }
.log-action-delete { color: var(--danger); }
.log-entry-main { min-width: 0; }
.log-entry-primary { font-weight: 700; font-size: 1rem; color: var(--text); }
.log-entry-detail { color: var(--text-muted); font-size: 0.8rem; margin-top: 3px; }

@media (prefers-color-scheme: dark) {
  .log-entry-primary { color: #c7c7cc; }
  .log-entry-detail { color: #636366; }
}

.log-val { color: var(--baby-colour, var(--accent)); }

.log-edit-form {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px 14px;
  margin-top: 6px;
  margin-bottom: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.log-edit-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.log-edit-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.log-edit-input {
  width: 100%;
  height: 44px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.log-edit-input:focus { border-color: var(--accent); }
.log-edit-select { padding: 0 12px; }
.log-edit-actions { display: flex; gap: 10px; }

.log-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 60px 0;
  font-size: 1rem;
}

.inline-empty {
  width: 100%;
  color: var(--text-muted);
  background: var(--surface);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 16px;
  font-size: 0.95rem;
  font-weight: 500;
  text-align: center;
}

.setup-guide {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 18px;
  box-shadow: var(--shadow);
}

.setup-guide-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.setup-guide-detail {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.4;
}

.settings-section { margin-bottom: 28px; }

#settings-medications,
#settings-users,
#settings-babies {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 10px;
}

.med-card,
.sync-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  box-shadow: var(--shadow);
}

.med-card-info { flex: 1; min-width: 0; }
.med-card-name { font-weight: 600; font-size: 1rem; }
.med-card-details,
.sync-detail {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
  overflow-wrap: anywhere;
}

.sync-card > div { flex: 1; min-width: 0; }
.sync-title { font-weight: 700; font-size: 1rem; }

.med-card-edit-btn,
.settings-delete-btn {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
}

.med-card-edit-btn {
  background: #e0edff;
  color: var(--accent);
}

.settings-delete-btn {
  background: #fee2e2;
  color: var(--danger);
  font-size: 0.9rem;
}

@media (prefers-color-scheme: dark) {
  .med-card-edit-btn { background: #0a2a4a; }
  .settings-delete-btn { background: #3a1010; }
}

.settings-add-btn {
  width: 100%;
  min-height: 44px;
  background: var(--surface);
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  margin-bottom: 16px;
  padding: 0 12px;
}

.med-form {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}

.med-form-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 14px;
}

.med-form-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.med-form-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.med-form-input {
  width: 100%;
  height: 48px;
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.med-form-input:focus { border-color: var(--accent); }

.med-alert {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 12px 14px;
  margin-bottom: 12px;
  background: #fff7ed;
  border: 1.5px solid #fed7aa;
  border-radius: var(--radius-sm);
  color: #9a3412;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
}

@media (prefers-color-scheme: dark) {
  .med-alert {
    background: #2d1a00;
    border-color: #7c3a00;
    color: #fdba74;
  }
}

.med-alert--warning {
  background: #fef9c3;
  border-color: #fde047;
  color: #854d0e;
  margin-top: 12px;
  padding: 14px 16px;
}

@media (prefers-color-scheme: dark) {
  .med-alert--warning {
    background: #2a2000;
    border-color: #6b5a00;
    color: #fde68a;
  }
}

.med-select {
  width: 100%;
  height: 56px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 0 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  box-shadow: var(--shadow);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24'%3E%3Cpath fill='%238e8e93' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}

.med-select:focus { border-color: var(--accent); }

.timestamp-toggle {
  width: 100%;
  height: 40px;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  text-align: left;
  padding: 0 14px;
}

.timestamp-toggle.active {
  color: var(--accent);
  border-color: var(--accent);
}

.timestamp-input {
  width: 100%;
  height: 48px;
  margin-top: 8px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.timestamp-input:focus { border-color: var(--accent); }

#medication-intervals {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 10px;
}

.med-interval-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.med-interval-row--ok { background: #dcfce7; color: #166534; }
.med-interval-row--overdue { background: #fee2e2; color: #991b1b; }
.med-interval-row--partial { background: #fef9c3; color: #854d0e; }

@media (prefers-color-scheme: dark) {
  .med-interval-row--ok { background: #0d2e1a; color: #4ade80; }
  .med-interval-row--overdue { background: #2d0f0f; color: #f87171; }
  .med-interval-row--partial { background: #2a2000; color: #fde68a; }
}

.med-interval-name { flex: 1; min-width: 0; }
.med-interval-time { font-weight: 400; opacity: 0.85; white-space: nowrap; }
.med-interval-badge { font-weight: 700; font-size: 1rem; flex-shrink: 0; }

.dash-date-nav {
  display: flex;
  align-items: center;
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 14px;
  overflow: hidden;
}

.dash-nav-btn {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: none;
  border: none;
  font-size: 1.8rem;
  color: var(--accent);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  line-height: 1;
}

.dash-nav-btn:disabled { color: var(--border); cursor: default; }
.dash-nav-btn:not(:disabled):active { opacity: 0.55; }

.dash-date-label {
  flex: 1;
  text-align: center;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.dash-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px 14px 14px;
  box-shadow: var(--shadow);
}

.dash-card-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 0 2px;
}

.dash-card-title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.dash-milk-chart {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dash-metric {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  background: var(--bg);
  border-radius: var(--radius-sm);
}

.dash-metric-name {
  flex: 1;
  font-size: 1rem;
  font-weight: 700;
}

.dash-metric-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.dash-metric-unit {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 20px;
}

.hidden { display: none !important; }