/* Modern Mobile App Design System */

/* Import fonts from Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Inter:wght@400;500;600;700&display=swap');

/* CSS Custom Properties (Variables) */
:root {
  /* Colors - Clean Black/White with Teal Accent */
  --color-primary: #14b8a6;
  --color-primary-dark: #0d9488;
  --color-primary-light: #5eead4;
  --color-secondary: #64748b;
  --color-accent: #14b8a6;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-success: #22c55e;

  --color-bg-dark: #000000;
  --color-bg-medium: #ffffff;
  --color-bg-light: #f8fafc;
  --color-text: #0f172a;
  --color-text-muted: #64748b;

  --color-border: #e2e8f0;
  --color-shadow: rgba(0, 0, 0, 0.1);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-family-mono: 'DM Mono', monospace;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;

  /* Border radius - rounded design */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 20px;
  --border-radius-full: 9999px;

  /* Animation */
  --transition-fast: 150ms ease;
  --transition-normal: 200ms ease;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg-dark: #ffffff;
    --color-bg-medium: #1a1a1a;
    --color-bg-light: #2d2d2d;
    --color-text: #e5e7eb;
    --color-text-muted: #94a3b8;
    --color-border: #404040;
    --color-shadow: rgba(0, 0, 0, 0.5);
  }
}

/* Reset and Base Styles */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0 0 var(--space-md) 0;
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
}

h1 {
  font-size: var(--font-size-2xl);
}

h2 {
  font-size: var(--font-size-xl);
}

h3 {
  font-size: var(--font-size-lg);
}

p {
  margin: 0 0 var(--space-md) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

a:hover {
  color: var(--color-primary-dark);
}

/* Layout */
main {
  max-width: 1024px;
  margin: 0 auto;
  padding: 68px var(--space-md) calc(80px + env(safe-area-inset-bottom));
  min-height: 100vh;
}

/* ===== Component Styles ===== */

/* Old Navigation (hidden - replaced by top header + bottom tab bar) */
nav:not(.bottom-tab-bar) {
  display: none;
}

/* Dropdown Menu (legacy - kept for non-authenticated pages) */
.dropdown-menu {
  position: absolute;
  right: 0;
  top: calc(100% + var(--space-sm));
  background: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  list-style: none;
  padding: var(--space-sm);
  margin: 0;
  min-width: 200px;
  max-width: calc(100vw - 2rem);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  z-index: 1000;
}

/* ===== Buttons ===== */
button,
input[type="submit"],
input[type="button"],
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: white;
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  transition: all var(--transition-normal);
  min-height: 44px;
  text-align: center;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

button:hover,
input[type="submit"]:hover,
input[type="button"]:hover,
.button:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: white;
}

button:active,
input[type="submit"]:active,
input[type="button"]:active,
.button:active {
  background: var(--color-primary-dark);
  transform: scale(0.97);
}

button:disabled,
input[type="submit"]:disabled,
input[type="button"]:disabled,
.button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Button Variants */
.button-secondary,
a.button-secondary {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.button-secondary:hover,
a.button-secondary:hover {
  background: var(--color-bg-light);
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.button-ghost,
a.button-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-primary);
}

.button-ghost:hover,
a.button-ghost:hover {
  background: rgba(20, 184, 166, 0.1);
  border-color: transparent;
  color: var(--color-primary-dark);
}

.button-danger,
a.button-danger {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: white;
}

.button-danger:hover,
a.button-danger:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: white;
}

.button-success {
  background: var(--color-success);
  border-color: var(--color-success);
  color: white;
}

.button-success:hover {
  background: #16a34a;
  border-color: #16a34a;
  color: white;
}

.button-small {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
  min-height: 36px;
}

.button-large {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--font-size-lg);
  min-height: 52px;
}

.button-block {
  width: 100%;
}

/* ===== Forms ===== */
fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="date"],
input[type="datetime-local"],
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg-medium);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-md);
  transition: all var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="datetime-local"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

input[type="checkbox"],
input[type="radio"] {
  width: 20px;
  height: 20px;
  accent-color: var(--color-primary);
}

label {
  display: block;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.field {
  margin-bottom: var(--space-lg);
}

/* Form field wrapper */
.form-field {
  margin-bottom: var(--space-lg);
}

.form-field label {
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Form errors */
.form-errors {
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  background: rgba(239, 68, 68, 0.08);
  border: 1.5px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--border-radius-md);
  color: var(--color-danger);
}

.form-errors h2 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-danger);
}

.form-errors ul {
  margin: 0;
  padding-left: var(--space-lg);
}

.form-errors li {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-xs);
}

/* Form actions bar */
.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.form-actions .button,
.form-actions button,
.form-actions input[type="submit"] {
  width: 100%;
}

/* ===== Auth pages (login, signup, password) ===== */
.auth-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  padding: var(--space-xl) var(--space-md);
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-bg-medium);
  border-radius: var(--border-radius-xl);
  padding: var(--space-xl);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-header h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0 0 var(--space-xs);
}

.auth-header p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin: 0;
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  background: var(--color-primary);
  border-radius: var(--border-radius-lg);
  color: white;
}

.auth-form .form-field {
  margin-bottom: var(--space-md);
}

.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"] {
  padding: 14px 16px;
  font-size: var(--font-size-base);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-light);
}

.auth-form button,
.auth-form input[type="submit"] {
  width: 100%;
  padding: 14px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--border-radius-full);
  margin-top: var(--space-sm);
}

.auth-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  margin-top: var(--space-lg);
}

.auth-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  min-height: 36px;
}

.auth-links a:hover {
  color: var(--color-primary);
}

.auth-alert {
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  background: rgba(239, 68, 68, 0.08);
  border: 1.5px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--border-radius-md);
  color: var(--color-danger);
  font-size: var(--font-size-sm);
  text-align: center;
}

.auth-notice {
  padding: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-md);
  background: rgba(20, 184, 166, 0.08);
  border: 1.5px solid rgba(20, 184, 166, 0.3);
  border-radius: var(--border-radius-md);
  color: var(--color-primary-dark);
  font-size: var(--font-size-sm);
  text-align: center;
}

/* Meals Section */
#list-meals label {
  font-size: var(--font-size-xl);
  font-weight: 500;
}

/* ===== Cards and Containers ===== */
.card {
  background: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
}

.card-header {
  margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-light);
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.card-header h2,
.card-header h3 {
  margin: 0;
}

.card-content {
  padding: 0 var(--space-lg) var(--space-lg);
}

/* Collapsible card (details element) */
details.card {
  padding: 0;
}

details.card summary {
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background var(--transition-fast);
  margin: 0;
  border-radius: var(--border-radius-lg);
}

details.card summary::-webkit-details-marker {
  display: none;
}

details.card summary:hover {
  background: var(--color-bg-light);
}

details.card summary h2::after {
  content: ' \25BC';
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-left: var(--space-sm);
  transition: transform var(--transition-fast);
  display: inline-block;
}

details.card[open] summary h2::after {
  transform: rotate(-180deg);
}

/* ===== Page header with action ===== */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}

.page-header h1 {
  margin: 0;
  font-size: var(--font-size-xl);
  font-weight: 600;
}

/* Back link for sub-pages */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  min-height: 44px;
  margin-bottom: var(--space-md);
}

.back-link:hover {
  color: var(--color-primary);
}

.back-link svg {
  width: 16px;
  height: 16px;
}

/* Lists */
ul, ol {
  padding-left: var(--space-xl);
}

ul.no-bullets {
  list-style: none;
  padding: 0;
}

/* ===== Notices and Alerts ===== */
.notice,
.alert {
  max-width: 1024px;
  margin: 60px auto var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border: 1.5px solid;
  border-radius: var(--border-radius-md);
  font-weight: 400;
  font-size: var(--font-size-sm);
  position: relative;
  z-index: 100;
}

.notice {
  color: var(--color-primary-dark);
  background: rgba(20, 184, 166, 0.08);
  border-color: rgba(20, 184, 166, 0.3);
}

.alert {
  color: #991b1b;
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.3);
}

/* ===== Tables ===== */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
}

thead {
  background: var(--color-bg-light);
}

th {
  padding: var(--space-md);
  text-align: left;
  color: var(--color-text);
  font-weight: 500;
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

tr:last-child td {
  border-bottom: none;
}

tbody tr {
  background: var(--color-bg-medium);
  transition: background var(--transition-fast);
}

tbody tr:hover {
  background: var(--color-bg-light);
}

/* ===== Item Display ===== */
section.item {
  display: flex;
  gap: var(--space-lg);
  flex-direction: column;
  padding: var(--space-lg);
  background: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  margin-bottom: var(--space-lg);
}

section.item img {
  border-radius: var(--border-radius-md);
  border: 1px solid var(--color-border);
  max-width: 100%;
  object-fit: cover;
}

/* ===== Groups ===== */
.groups-cards {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.group-card {
  position: relative;
  background: var(--color-bg-medium);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
  transition: all var(--transition-normal);
}

.group-card-selected {
  background: rgba(20, 184, 166, 0.04);
  border-color: var(--color-primary);
  border-width: 2px;
}

.group-radio {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.group-radio h3 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.selected-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(20, 184, 166, 0.1);
  color: var(--color-primary-dark);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.group-actions {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  align-items: center;
}

.group-actions a {
  font-size: var(--font-size-sm);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-full);
  min-height: 36px;
}

.group-actions a:hover {
  background: rgba(20, 184, 166, 0.08);
}

.group-actions a.button-danger {
  color: white;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.group-actions a.button-danger:hover {
  color: white;
  background: #dc2626;
}

.group-actions button,
.group-actions input[type="submit"] {
  font-size: var(--font-size-sm);
  padding: var(--space-xs) var(--space-md);
  min-height: 36px;
}

.group-actions button[data-turbo-confirm],
.group-actions form[data-turbo-confirm] button,
form[data-turbo-confirm] button {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: white;
}

.group-actions button[data-turbo-confirm]:hover,
.group-actions form[data-turbo-confirm] button:hover,
form[data-turbo-confirm] button:hover {
  background: #dc2626;
  border-color: #dc2626;
  color: white;
}

/* ===== List Items - Row Layout ===== */
.list-items-container {
  display: flex;
  flex-direction: column;
}

/* Keep grid class name for Sortable.js compatibility */
.list-items-grid {
  display: flex;
  flex-direction: column;
  min-height: 50px;
}

.list-item-row {
  display: flex;
  flex-direction: column;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-medium);
  transition: background var(--transition-fast);
  overflow: hidden;
}

.list-item-row:last-child {
  border-bottom: none;
}

/* ===== Swipe-to-reveal container ===== */
.swipe-container {
  position: relative;
  overflow: hidden;
}

.swipe-actions-behind {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: stretch;
  z-index: 0;
}

/* button_to generates a wrapping <form> -- make it flex-stretch */
.swipe-actions-behind form {
  display: flex;
  align-items: stretch;
  margin: 0;
  padding: 0;
}

.swipe-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 70px;
  min-height: 52px;
  border: none;
  border-radius: 0;
  color: white;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  padding: var(--space-xs) 0;
  gap: 3px;
  -webkit-tap-highlight-color: transparent;
}

.swipe-action:hover {
  filter: brightness(1.05);
}

.swipe-action:active {
  filter: brightness(0.95);
  transform: none;
}

.swipe-action svg {
  flex-shrink: 0;
}

.swipe-action-edit {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.swipe-action-delete {
  background: var(--color-danger);
  border-color: var(--color-danger);
}

.swipe-content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: var(--space-sm) 0;
  gap: var(--space-sm);
  background: var(--color-bg-medium);
  transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1);
  will-change: transform;
}

.list-item-ticked {
  opacity: 0.5;
}

.list-item-ticked .list-item-name {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

/* Custom Circular Checkbox */
.custom-checkbox {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

.custom-checkbox-circle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: transparent;
  transition: all var(--transition-normal);
}

.custom-checkbox-check {
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.custom-checkbox-input:checked + .custom-checkbox-circle {
  background: var(--color-primary);
  border-color: var(--color-primary);
  animation: checkbox-pulse 200ms ease;
}

.custom-checkbox-input:checked + .custom-checkbox-circle .custom-checkbox-check {
  opacity: 1;
}

@keyframes checkbox-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(0.85); }
  100% { transform: scale(1); }
}

.list-item-row-text {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  min-width: 0;
  overflow: hidden;
}

.list-item-name {
  font-weight: 500;
  font-size: var(--font-size-base);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Legacy display class kept for compatibility */
.list-item-quantity-display {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 400;
  white-space: nowrap;
  flex-shrink: 0;
}

.list-item-quantity-inline {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 400;
  margin-left: var(--space-xs);
}

/* Quantity Badge */
.list-item-quantity-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-primary-dark);
  background: rgba(20, 184, 166, 0.1);
  border-radius: var(--border-radius-full);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  transition: background var(--transition-fast), color var(--transition-fast);
  min-height: 24px;
  user-select: none;
}

.list-item-quantity-badge:active {
  background: rgba(20, 184, 166, 0.25);
}

@media (prefers-color-scheme: dark) {
  .list-item-quantity-badge {
    color: var(--color-primary-light);
    background: rgba(20, 184, 166, 0.15);
  }
}

.list-item-quantity-edit {
  display: inline-flex;
  align-items: center;
  gap: 2px;
}

.quantity-input {
  width: 52px;
  padding: 2px 6px;
  font-family: var(--font-family-mono);
  font-size: var(--font-size-sm);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--border-radius-sm);
  background: var(--color-bg-medium);
  color: var(--color-text);
  text-align: center;
}

/* Mono font for quantities and dates */
.list-item-quantity-badge,
.list-item-quantity-display,
.list-item-quantity-edit,
.list-item-quantity-inline,
input[type="number"],
input[type="date"],
input[type="datetime-local"] {
  font-family: var(--font-family-mono);
}

/* ===== Utility Classes ===== */
.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-text-muted);
}

.text-primary {
  color: var(--color-primary);
}

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-sm); }
.mt-2 { margin-top: var(--space-md); }
.mt-3 { margin-top: var(--space-lg); }
.mt-4 { margin-top: var(--space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-sm); }
.mb-2 { margin-bottom: var(--space-md); }
.mb-3 { margin-bottom: var(--space-lg); }
.mb-4 { margin-bottom: var(--space-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-sm); }
.p-2 { padding: var(--space-md); }
.p-3 { padding: var(--space-lg); }
.p-4 { padding: var(--space-xl); }

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.gap-1 { gap: var(--space-sm); }
.gap-2 { gap: var(--space-md); }
.gap-3 { gap: var(--space-lg); }
.gap-4 { gap: var(--space-xl); }

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.hidden {
  display: none;
}

/* Mono font utility */
.font-mono {
  font-family: var(--font-family-mono);
}

/* ===== Completed Items Section ===== */
.completed-section {
  margin-top: var(--space-md);
}

.completed-header {
  display: flex;
  align-items: center;
  padding: var(--space-sm) 0;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
  min-height: 44px;
}

.completed-header::-webkit-details-marker {
  display: none;
}

.completed-header::before {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 5px solid var(--color-text-muted);
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  margin-right: var(--space-sm);
  transition: transform var(--transition-fast);
}

.completed-section[open] > .completed-header::before {
  transform: rotate(90deg);
}

.completed-items-list .list-item-row {
  opacity: 0.5;
}

.completed-items-list .list-item-name {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

/* ===== Home Tab (List of Lists) ===== */
.home-header {
  display: flex;
  justify-content: flex-end;
  margin-bottom: var(--space-md);
}

.new-list-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-primary);
  color: white;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
}

.lists-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.list-card {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg-medium);
  border: none;
  border-radius: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-family);
  width: 100%;
  transition: background var(--transition-fast);
}

.list-card:active {
  background: var(--color-bg-light);
  transform: none;
}

.list-card-active {
  border-left: 3px solid var(--color-primary);
}

.list-card-content {
  flex: 1;
  min-width: 0;
}

.list-card-date {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
}

.list-card-meta {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: 2px;
}

.list-card-active-badge {
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-primary-dark);
  padding: 2px 8px;
  background: rgba(20, 184, 166, 0.1);
  border-radius: var(--border-radius-full);
  flex-shrink: 0;
}

.list-card-chevron {
  flex-shrink: 0;
  color: var(--color-text-muted);
}

/* ===== Meals Tab ===== */
.meals-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.meal-day-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.meal-day-label {
  flex: 0 0 80px;
  display: flex;
  flex-direction: column;
}

.meal-day-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.meal-day-date {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.meal-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  padding: var(--space-sm);
  color: var(--color-text);
  outline: none;
  border-radius: var(--border-radius-sm);
}

.meal-input:focus {
  background: var(--color-bg-light);
}

.meal-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.5;
}

/* ===== Empty State ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-2xl) var(--space-md);
  min-height: 40vh;
}

.empty-state-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  background: rgba(20, 184, 166, 0.08);
  border-radius: var(--border-radius-full);
  margin-bottom: var(--space-lg);
}

.empty-state-icon svg {
  width: 36px;
  height: 36px;
}

.empty-state-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0 0 var(--space-xs);
  color: var(--color-text);
}

.empty-state-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-lg);
}

.empty-state .button,
.empty-state a.button {
  margin-top: 0;
}

/* ===== Fixed Top Header ===== */
.top-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-md);
  background: var(--color-bg-medium);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
}

.top-header-left,
.top-header-right {
  flex: 1;
  min-width: 0;
}

.top-header-center {
  flex: 0 0 auto;
  text-align: center;
}

.top-header-title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.2;
}

.top-header-subtitle {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: 400;
  color: var(--color-text-muted);
  line-height: 1.2;
}

.top-header-right {
  display: flex;
  justify-content: flex-end;
}

.group-chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--border-radius-full);
  white-space: nowrap;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.header-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-height: 36px;
  border-radius: 50%;
  color: var(--color-primary);
  padding: 0;
  background: transparent;
  border: none;
}

.header-action-btn:hover {
  background: rgba(20, 184, 166, 0.1);
}

/* ===== Bottom Tab Bar ===== */
.bottom-tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 64px;
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--color-bg-medium);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -1px 3px var(--color-shadow);
}

.tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  gap: 2px;
  padding: 6px 0;
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: 11px;
  font-weight: 500;
  min-height: 44px;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.tab-item:hover {
  color: var(--color-primary);
}

.tab-item.tab-active {
  color: var(--color-primary);
}

.tab-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.tab-label {
  font-size: 11px;
  line-height: 1;
}

/* ===== Floating Action Button (FAB) ===== */
.fab {
  position: fixed;
  bottom: calc(76px + env(safe-area-inset-bottom));
  right: 16px;
  width: 56px;
  height: 56px;
  min-height: 56px;
  border-radius: 50%;
  background: var(--color-primary);
  border: none;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
  cursor: pointer;
  z-index: 999;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  -webkit-tap-highlight-color: transparent;
  padding: 0;
}

.fab:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(20, 184, 166, 0.5);
  background: var(--color-primary);
}

.fab:active {
  transform: scale(0.95);
  background: var(--color-primary-dark);
}

/* ===== Bottom Sheet ===== */
.sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 300ms ease, visibility 300ms ease;
  -webkit-tap-highlight-color: transparent;
}

.sheet-backdrop-visible {
  opacity: 1;
  visibility: visible;
}

.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1200;
  background: var(--color-bg-medium);
  border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
  padding: var(--space-md) var(--space-lg) calc(var(--space-xl) + env(safe-area-inset-bottom));
  transform: translateY(100%);
  transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  max-height: 80vh;
  overflow-y: auto;
}

.sheet-open {
  transform: translateY(0);
}

.sheet-drag-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 28px;
  margin: 0 0 var(--space-sm);
  cursor: grab;
  touch-action: none;
}

.sheet-drag-handle::after {
  content: '';
  width: 36px;
  height: 4px;
  background: #c0c4cc;
  border-radius: 2px;
}

@media (prefers-color-scheme: dark) {
  .sheet-drag-handle::after {
    background: #666;
  }
}

.sheet-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  margin: 0 0 var(--space-lg);
  text-align: center;
}

.sheet-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.sheet-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  position: relative;
}

.sheet-label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

.sheet-input {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-lg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-md);
  background: var(--color-bg-light);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.sheet-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

/* Quantity Stepper */
.quantity-stepper {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-md);
  overflow: hidden;
  background: var(--color-bg-light);
  width: fit-content;
}

.stepper-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  min-height: 48px;
  background: transparent;
  border: none;
  border-radius: 0;
  color: var(--color-primary);
  cursor: pointer;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

.stepper-btn:hover {
  background: rgba(20, 184, 166, 0.1);
}

.stepper-btn:active {
  background: rgba(20, 184, 166, 0.2);
  transform: none;
}

.stepper-value {
  min-width: 40px;
  text-align: center;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-text);
  padding: 0 var(--space-sm);
}

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

.sheet-submit-btn {
  width: 100%;
  padding: 14px;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: white;
  background: var(--color-primary);
  border: none;
  border-radius: var(--border-radius-full);
  cursor: pointer;
  min-height: 48px;
  transition: background var(--transition-normal);
  margin-top: var(--space-sm);
}

.sheet-submit-btn:hover {
  background: var(--color-primary-dark);
}

.sheet-submit-btn:active {
  background: var(--color-primary-dark);
  transform: none;
}

/* ===== Invitation Cards ===== */
.invitation-card {
  background: var(--color-bg-medium);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-lg);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.06);
}

.invitation-card h3 {
  margin: 0 0 var(--space-sm);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.invitation-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xs);
}

.invitation-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.invitation-actions form {
  flex: 1;
}

.invitation-actions button,
.invitation-actions input[type="submit"] {
  width: 100%;
}

/* ===== Item list page ===== */
.items-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
}

.items-list-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-medium);
  transition: background var(--transition-fast);
  min-height: 48px;
}

.items-list-item a {
  flex: 1;
  color: var(--color-text);
  font-weight: 500;
}

.items-list-item a:hover {
  color: var(--color-primary);
}

/* ===== List detail page ===== */
.list-detail-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.list-detail-actions a,
.list-detail-actions form {
  flex: 1;
}

.list-detail-actions button,
.list-detail-actions input[type="submit"] {
  width: 100%;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  :root {
    --font-size-base: 0.9375rem;
  }

  main {
    padding: 68px var(--space-md) calc(80px + env(safe-area-inset-bottom));
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-base: 0.875rem;
  }
}

/* ===== Autocomplete ===== */
.autocomplete-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-bg-medium);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  max-height: 200px;
  overflow-y: auto;
  z-index: 1300;
  display: none;
  margin-top: var(--space-xs);
}

.autocomplete-results-visible {
  display: block;
}

.autocomplete-item {
  padding: var(--space-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-lg);
}

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

.autocomplete-item:hover {
  background: var(--color-bg-light);
  color: var(--color-primary);
}

.autocomplete-loading {
  padding: var(--space-md);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
}

/* ===== Animations ===== */
@keyframes glow {
  0%, 100% {
    text-shadow: 0 0 10px var(--color-shadow);
  }
  50% {
    text-shadow: 0 0 20px var(--color-shadow), 0 0 30px var(--color-shadow);
  }
}

.glow {
  animation: glow 2s ease-in-out infinite;
}

/* ===== Sortable.js Drag and Drop ===== */
.list-item-row {
  -webkit-user-select: none;
  user-select: none;
}

.drag-handle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 44px;
  flex-shrink: 0;
  cursor: move;
  cursor: grab;
  color: var(--color-border);
  touch-action: none;
  transition: color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  margin-left: auto;
}

.drag-handle:active {
  cursor: grabbing;
  color: var(--color-primary);
}

.drag-handle:hover {
  color: var(--color-text-muted);
}

.drag-handle svg {
  pointer-events: none;
  width: 10px;
  height: 18px;
}

.sortable-ghost {
  opacity: 0.4;
  background: var(--color-primary-light);
  touch-action: none;
}

.sortable-chosen {
  cursor: grabbing;
  touch-action: none;
}

.sortable-drag {
  touch-action: none;
}

.sortable-fallback {
  opacity: 1 !important;
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3) !important;
  cursor: grabbing !important;
  transition: none !important;
  z-index: 9999;
  touch-action: none;
}