/* styles.css — Babylogs Design System */
/* Brand: #FF8000 (orange), #4C1F7A (deep purple), #219B9D (teal), #EEEEEE (light gray), black */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Outfit:wght@500;600;700&display=swap');

/* ==================== CSS VARIABLES ==================== */
:root {
  --color-primary: #4C1F7A;
  --color-accent: #FF8000;
  --color-secondary: #219B9D;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F5F3F8;
  --color-bg: #F8F6FB;
  --color-text: #1A1A1A;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-border: #E8E4EE;
  --color-overlay: rgba(0, 0, 0, 0.45);
  --color-danger: #E74C3C;
  --color-success: #27AE60;
  --color-warn: #F39C12;

  --shadow-sm: 0 1px 3px rgba(76, 31, 122, 0.08);
  --shadow-md: 0 4px 12px rgba(76, 31, 122, 0.1);
  --shadow-lg: 0 8px 24px rgba(76, 31, 122, 0.12);
  --shadow-fab: 0 6px 20px rgba(255, 128, 0, 0.35);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 50%;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-heading: 'Outfit', 'Inter', sans-serif;

  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-spring: 350ms cubic-bezier(0.34, 1.56, 0.64, 1);

  --header-base-height: 56px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --header-height: calc(var(--header-base-height) + var(--safe-top));
  --ad-banner-height: 60px;
  --fab-size: 56px;
}

/* ==================== DARK MODE ==================== */
@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #9B6DFF;
    --color-accent: #FF9933;
    --color-secondary: #33C4C4;
    --color-surface: #1E1A2E;
    --color-surface-alt: #252136;
    --color-bg: #121020;
    --color-text: #EDECF0;
    --color-text-secondary: #A8A4B4;
    --color-text-muted: #706C7E;
    --color-border: #332E45;
    --color-overlay: rgba(0, 0, 0, 0.6);

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-fab: 0 6px 20px rgba(255, 128, 0, 0.4);
  }
}

/* ==================== RESET & BASE ==================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==================== APP CONTAINER ==================== */
#app {
  max-width: 480px;
  margin: 0 auto;
  min-height: 100vh;
  min-height: 100dvh;
  position: relative;
  background: var(--color-bg);
}

@media (min-width: 481px) {
  #app {
    border-left: 1px solid var(--color-border);
    border-right: 1px solid var(--color-border);
  }
}

/* ==================== HEADER / TITLE BAR ==================== */
.header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 480px;
  height: var(--header-height);
  background: var(--color-primary);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  padding: var(--safe-top) 12px 0 12px;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(76, 31, 122, 0.2);
}

.header__menu-btn {
  background: none;
  border: none;
  color: #FFFFFF;
  font-size: 24px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.header__menu-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

.header__title {
  flex: 1;
  text-align: center;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.header__right {
  width: 40px;
}

/* ==================== AD BANNER ==================== */
.ad-banner {
  margin-top: var(--header-height);
  height: var(--ad-banner-height);
  background: var(--color-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ==================== BABY SWITCHER ==================== */
.baby-switcher {
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.baby-switcher__current {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

.baby-switcher__current:hover {
  background: var(--color-surface-alt);
}

.baby-switcher__avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  font-family: var(--font-heading);
}

.baby-switcher__name {
  font-weight: 600;
  font-size: 15px;
}

.baby-switcher__age {
  font-size: 12px;
  color: var(--color-text-secondary);
}

.baby-switcher__dropdown-icon {
  font-size: 12px;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.baby-switcher__dropdown-icon.open {
  transform: rotate(180deg);
}

.baby-switcher__dropdown {
  position: absolute;
  left: 16px;
  right: 16px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  z-index: 50;
  overflow: hidden;
  animation: slideDown var(--transition-spring) forwards;
}

.baby-switcher__dropdown-item {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
}

.baby-switcher__dropdown-item:last-child {
  border-bottom: none;
}

.baby-switcher__dropdown-item:hover {
  background: var(--color-surface-alt);
}

.baby-switcher__dropdown-item.active {
  background: var(--color-surface-alt);
  font-weight: 600;
}

.baby-switcher__dropdown-item.add-baby {
  color: var(--color-accent);
  font-weight: 500;
}

/* ==================== DATE NAVIGATOR ==================== */
.date-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 12px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.date-nav__btn {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 22px;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
}

.date-nav__btn:hover {
  background: var(--color-surface-alt);
  color: var(--color-accent);
}

.date-nav__btn:active {
  transform: scale(0.92);
}

.date-nav__label {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
  position: relative;
  min-width: 150px;
  text-align: center;
}

.date-nav__label:hover {
  background: var(--color-surface-alt);
}

.date-nav__today-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  color: var(--color-accent);
  margin-left: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.date-nav__hidden-input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
  pointer-events: none;
}

/* ==================== LAST FEED TIMER ==================== */
.last-feed-timer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  font-size: 13px;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.last-feed-timer:hover {
  background: var(--color-surface-alt);
}

.last-feed-timer__icon {
  font-size: 16px;
}

.last-feed-timer__text {
  color: var(--color-text-secondary);
}

.last-feed-timer__time {
  font-weight: 600;
}

.last-feed-timer--ok .last-feed-timer__time { color: var(--color-success); }
.last-feed-timer--warn .last-feed-timer__time { color: var(--color-warn); }
.last-feed-timer--alert .last-feed-timer__time { color: var(--color-danger); }

/* ==================== TIMELINE ==================== */
.timeline {
  padding: 12px 16px;
  padding-bottom: calc(80px + var(--safe-bottom));
  min-height: calc(100vh - var(--header-height) - var(--ad-banner-height) - 140px);
}

.timeline__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.timeline__empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.6;
}

.timeline__empty-text {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.timeline__empty-hint {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* Activity Card */
.activity-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 8px;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  transition: all var(--transition-fast);
  border-left: 4px solid transparent;
  position: relative;
  animation: fadeSlideIn 0.3s ease forwards;
  opacity: 0;
}

.activity-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.activity-card:active {
  transform: scale(0.98);
}

.activity-card__emoji {
  font-size: 24px;
  flex-shrink: 0;
  width: 36px;
  text-align: center;
}

.activity-card__content {
  flex: 1;
  min-width: 0;
}

.activity-card__time {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}

.activity-card__description {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.activity-card__notes {
  font-size: 12px;
  color: var(--color-text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 2px;
}

.activity-card__duration {
  flex-shrink: 0;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface-alt);
  padding: 3px 8px;
  border-radius: var(--radius-xl);
}

.activity-card__delete-zone {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 70px;
  background: var(--color-danger);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 20px;
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--transition-normal);
}

/* Stagger animation for timeline cards */
.activity-card:nth-child(1) { animation-delay: 0.05s; }
.activity-card:nth-child(2) { animation-delay: 0.1s; }
.activity-card:nth-child(3) { animation-delay: 0.15s; }
.activity-card:nth-child(4) { animation-delay: 0.2s; }
.activity-card:nth-child(5) { animation-delay: 0.25s; }
.activity-card:nth-child(6) { animation-delay: 0.3s; }
.activity-card:nth-child(7) { animation-delay: 0.35s; }
.activity-card:nth-child(8) { animation-delay: 0.4s; }
.activity-card:nth-child(9) { animation-delay: 0.45s; }
.activity-card:nth-child(10) { animation-delay: 0.5s; }

/* ==================== FAB ==================== */
.fab {
  position: fixed;
  bottom: calc(20px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  width: var(--fab-size);
  height: var(--fab-size);
  border-radius: var(--radius-full);
  background: var(--color-accent);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: var(--shadow-fab);
  transition: all var(--transition-fast);
  z-index: 50;
}

.fab:hover {
  transform: translateX(-50%) scale(1.08);
  box-shadow: 0 8px 28px rgba(255, 128, 0, 0.45);
}

.fab:active {
  transform: translateX(-50%) scale(0.95);
}

.fab--pulse {
  animation: fabPulse 2s infinite;
}

/* ==================== MODAL / BOTTOM SHEET ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform var(--transition-spring);
}

.modal-overlay.active .modal {
  transform: translateY(0);
}

.modal__drag-handle {
  width: 36px;
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  margin: 10px auto 4px;
}

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px 8px;
}

.modal__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
}

.modal__close-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.modal__close-btn:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
}

.modal__body {
  padding: 8px 20px 20px;
}

.modal__footer {
  padding: 12px 20px;
  padding-bottom: calc(12px + var(--safe-bottom));
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--color-border);
}

/* ==================== FORM ELEMENTS ==================== */
.form-group {
  margin-bottom: 16px;
}

.form-group__label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group__input,
.form-group__select,
.form-group__textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 15px;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-surface-alt);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}

.form-group__input:focus,
.form-group__select:focus,
.form-group__textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 128, 0, 0.15);
}

.form-group__select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23666' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

.form-group__textarea {
  resize: vertical;
  min-height: 60px;
}

.form-group__row {
  display: flex;
  gap: 12px;
}

.form-group__row .form-group {
  flex: 1;
}

/* Multi-select chips */
.multi-select {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.multi-select__chip {
  padding: 6px 14px;
  border-radius: var(--radius-xl);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 2px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
}

.multi-select__chip.selected {
  border-color: var(--color-accent);
  background: rgba(255, 128, 0, 0.1);
  color: var(--color-accent);
}

.multi-select__chip:hover {
  border-color: var(--color-accent);
}

/* Buttons */
.btn {
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex: 1;
}

.btn:active {
  transform: scale(0.97);
}

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

.btn--primary:hover {
  background: #E67300;
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

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

.btn--danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}

.btn--danger:hover {
  background: var(--color-danger);
  color: #FFFFFF;
}

.btn--full {
  width: 100%;
}

.btn--sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn--icon {
  padding: 8px;
  width: 36px;
  height: 36px;
}

/* ==================== WELCOME SCREEN ==================== */
.welcome {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(40px + var(--safe-top)) 24px calc(40px + var(--safe-bottom));
  text-align: center;
  background: linear-gradient(160deg, var(--color-primary) 0%, #2D1050 50%, #1A0A35 100%);
  color: #FFFFFF;
}

.welcome__logo {
  font-size: 64px;
  margin-bottom: 16px;
  animation: float 3s ease-in-out infinite;
}

.welcome__title {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 8px;
}

.welcome__subtitle {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
}

.welcome__form {
  width: 100%;
  max-width: 320px;
}

.welcome .form-group__label {
  color: rgba(255, 255, 255, 0.8);
  text-align: left;
}

.welcome .form-group__input {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
}

.welcome .form-group__input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.welcome .form-group__input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(255, 128, 0, 0.25);
}

.welcome__cta {
  margin-top: 24px;
}

.welcome__install-btn {
  margin-top: 16px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.welcome__install-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ==================== SIDEBAR / HAMBURGER MENU ==================== */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 300;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
  opacity: 1;
  visibility: visible;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 80vw;
  background: var(--color-surface);
  z-index: 301;
  transform: translateX(-100%);
  transition: transform var(--transition-spring);
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.sidebar-overlay.active .sidebar {
  transform: translateX(0);
}

.sidebar__header {
  padding: calc(24px + var(--safe-top)) 20px 16px;
  background: linear-gradient(135deg, var(--color-primary), #2D1050);
  color: #FFFFFF;
}

.sidebar__app-name {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.sidebar__app-version {
  font-size: 12px;
  opacity: 0.7;
}

.sidebar__nav {
  padding: 8px 0;
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  cursor: pointer;
  transition: background var(--transition-fast);
  font-size: 15px;
  color: var(--color-text);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: var(--font-body);
}

.sidebar__item:hover {
  background: var(--color-surface-alt);
}

.sidebar__item-icon {
  font-size: 18px;
  width: 24px;
  text-align: center;
}

.sidebar__divider {
  height: 1px;
  background: var(--color-border);
  margin: 4px 0;
}

.sidebar__item--danger {
  color: var(--color-danger);
}

/* ==================== SUMMARY SCREEN ==================== */
.summary {
  padding: 16px;
  padding-top: calc(var(--header-height) + 16px);
  padding-bottom: 32px;
}

.summary__period-tabs {
  display: flex;
  gap: 4px;
  background: var(--color-surface-alt);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.summary__period-tab {
  flex: 1;
  padding: 8px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius-sm);
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  transition: all var(--transition-fast);
}

.summary__period-tab.active {
  background: var(--color-surface);
  color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.summary__card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
}

.summary__card-title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.summary__stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.summary__stat {
  text-align: center;
}

.summary__stat-value {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.summary__stat-label {
  font-size: 11px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

/* Expected Performance Bars */
.perf-metric {
  margin-bottom: 14px;
}

.perf-metric__label {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
}

.perf-metric__actual {
  font-weight: 700;
}

.perf-metric__bar {
  height: 8px;
  background: var(--color-surface-alt);
  border-radius: 4px;
  position: relative;
  overflow: hidden;
}

.perf-metric__bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s ease;
}

.perf-metric__bar-range {
  position: absolute;
  top: 0;
  height: 100%;
  background: rgba(0, 0, 0, 0.08);
  border-left: 2px solid rgba(0, 0, 0, 0.15);
  border-right: 2px solid rgba(0, 0, 0, 0.15);
}

.perf-metric--ok .perf-metric__bar-fill { background: var(--color-success); }
.perf-metric--ok .perf-metric__actual { color: var(--color-success); }
.perf-metric--warn .perf-metric__bar-fill { background: var(--color-warn); }
.perf-metric--warn .perf-metric__actual { color: var(--color-warn); }
.perf-metric--alert .perf-metric__bar-fill { background: var(--color-danger); }
.perf-metric--alert .perf-metric__actual { color: var(--color-danger); }

.perf-metric__expected {
  font-size: 11px;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Charts */
.summary__chart {
  width: 100%;
  height: 180px;
  margin-top: 8px;
}

.summary__export-btns {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

/* ==================== SETTINGS VIEW ==================== */
.settings {
  padding: 16px;
  padding-top: calc(var(--header-height) + 16px);
}

.settings__group {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-sm);
}

.settings__group-title {
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.settings__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.settings__row:last-child {
  border-bottom: none;
}

.settings__row-label {
  font-size: 14px;
  font-weight: 500;
}

.settings__row-value {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* Toggle switch */
.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  border-radius: 13px;
  background: var(--color-border);
  cursor: pointer;
  transition: background var(--transition-fast);
}

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

.toggle__knob {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  background: #FFFFFF;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-fast);
}

.toggle.active .toggle__knob {
  transform: translateX(22px);
}

/* ==================== CONFIRM DIALOG ==================== */
.confirm-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.confirm-overlay.active {
  opacity: 1;
  visibility: visible;
}

.confirm-dialog {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 320px;
  width: 100%;
  box-shadow: var(--shadow-lg);
  text-align: center;
  transform: scale(0.9);
  transition: transform var(--transition-spring);
}

.confirm-overlay.active .confirm-dialog {
  transform: scale(1);
}

.confirm-dialog__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
}

.confirm-dialog__message {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.5;
}

.confirm-dialog__actions {
  display: flex;
  gap: 10px;
}

/* ==================== TOAST NOTIFICATION ==================== */
.toast {
  position: fixed;
  bottom: calc(80px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--color-text);
  color: var(--color-bg);
  padding: 12px 24px;
  border-radius: var(--radius-xl);
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 600;
  opacity: 0;
  transition: all var(--transition-spring);
  white-space: nowrap;
  max-width: calc(100vw - 48px);
  overflow: hidden;
  text-overflow: ellipsis;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fabPulse {
  0%, 100% {
    box-shadow: var(--shadow-fab);
  }
  50% {
    box-shadow: 0 6px 30px rgba(255, 128, 0, 0.55);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ==================== PRINT STYLES ==================== */
@media print {
  .header, .fab, .sidebar-overlay, .modal-overlay, .ad-banner,
  .baby-switcher, .date-nav, .last-feed-timer, .toast,
  .summary__export-btns, .summary__period-tabs {
    display: none !important;
  }

  body {
    background: #FFF;
    color: #000;
  }

  .summary {
    padding: 0;
  }

  .summary__card {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ==================== UTILITY CLASSES ==================== */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}