:root {
  --color-bg: #f6f7f8;
  --color-surface: #ffffff;
  --color-surface-muted: #f9fafb;
  --color-text: #1f2933;
  --color-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-border-strong: #cbd5e1;
  --color-primary: #2563eb;
  --color-primary-strong: #1d4ed8;
  --color-primary-soft: #dbeafe;
  --color-danger: #b91c1c;
  --color-danger-soft: #fef2f2;
  --color-success: #16a34a;
  --color-success-text: #166534;
  --color-success-soft: #f0fdf4;
  --color-text-inverse: #ffffff;
  --color-overlay: rgba(31, 41, 51, 0.42);
  --color-glass-bg: rgba(246, 247, 248, 0.94);
  --color-glass-surface: rgba(255, 255, 255, 0.96);
  --color-translucent-surface: rgba(255, 255, 255, 0.72);
  --color-tag-bg: #f1f3f6;
  --color-tag-text: #334155;
  --color-tag-border: #e2e8f0;
  --color-set-bg: #eef4ff;
  --color-set-text: #1e3a8a;
  --color-set-border: #d8e6ff;
  --color-favorite-bg: #fff4cc;
  --color-favorite-text: #8a5a00;
  --color-favorite-border: #fde68a;
  --status-new-bg: #f3f4f6;
  --status-new-text: #374151;
  --status-review-bg: #fef3c7;
  --status-review-text: #92400e;
  --status-buy-bg: #dcfce7;
  --status-buy-text: #166534;
  --status-ordered-bg: #e0e7ff;
  --status-ordered-text: #3730a3;
  --status-done-bg: #e5e7eb;
  --status-done-text: #4b5563;
  --deadline-upcoming-bg: #eef4ff;
  --deadline-upcoming-text: #1e3a8a;
  --deadline-soon-bg: #fef3c7;
  --deadline-soon-text: #92400e;
  --deadline-today-bg: #fff7ed;
  --deadline-today-text: #9a3412;
  --deadline-expired-bg: #fef2f2;
  --deadline-expired-text: #991b1b;
  --focus-ring: 0 0 0 3px rgba(37, 99, 235, 0.22);
  --radius: 8px;
  --shadow: 0 1px 2px rgba(31, 41, 51, 0.08);
  --shadow-raised: 0 8px 18px rgba(31, 41, 51, 0.12);
  --shadow-toast: 0 8px 20px rgba(31, 41, 51, 0.16);
  --shadow-modal: 0 16px 40px rgba(31, 41, 51, 0.22);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --transition-fast: 150ms ease;
  --transition-medium: 220ms ease;
}

/* Base */
* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--color-bg);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
  touch-action: manipulation;
}

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

[hidden] {
  display: none !important;
}

details:not([open]) > :not(summary) {
  display: none !important;
}

:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
}

/* Layout */
.app-root {
  min-height: 100vh;
}

.app-shell {
  min-height: 100vh;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 58px;
  padding: 10px var(--space-4);
  background: var(--color-glass-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.app-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
}

.app-header-actions {
  display: inline-flex;
  gap: var(--space-2);
  align-items: center;
}

.header-notification-button {
  position: relative;
}

.notification-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  margin-left: var(--space-1);
  padding: 0 6px;
  border-radius: 999px;
  color: var(--color-text-inverse);
  background: var(--color-danger);
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
}

.app-main {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-4);
}

.login-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: var(--space-6) var(--space-4);
}

.stack {
  display: grid;
  gap: 14px;
}

.section-title {
  margin: 22px 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.section-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin: 22px 0 10px;
}

.section-title-row .section-title {
  margin: 0;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.button-row .button {
  width: 100%;
}

/* Navigation */
.bottom-nav {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3) calc(var(--space-2) + env(safe-area-inset-bottom));
  background: var(--color-glass-surface);
  border-top: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-button {
  min-height: 48px;
  border: 0;
  border-radius: var(--radius);
  color: var(--color-muted);
  background: transparent;
  font-weight: 650;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.nav-button.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
}

.nav-button:active {
  transform: scale(0.98);
}

/* Cards and lists */
.login-card,
.card {
  width: 100%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-card {
  max-width: 420px;
  padding: var(--space-5);
}

.dashboard-create-card {
  border-left: 4px solid var(--color-primary);
}

.card {
  padding: 14px;
}

.product-card {
  display: grid;
  grid-template-rows: auto;
  gap: var(--space-3);
  align-content: stretch;
  text-align: left;
}

.group-list-section {
  margin-top: var(--space-5);
}

.product-card.has-card-actions {
  grid-template-rows: minmax(0, 1fr) auto;
}

.product-card > .button,
.product-card > .button-row {
  align-self: end;
}

.comparison-card {
  height: 100%;
  grid-template-rows: auto minmax(0, 1fr) auto;
  align-content: stretch;
}

.card-button {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.card-button:active {
  transform: scale(0.995);
}

@media (hover: hover) {
  .card-button:hover {
    color: var(--color-primary-strong);
  }
}

.section-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-3);
}

.notification-list {
  display: grid;
  gap: var(--space-3);
}

.notification-card {
  padding: 0;
}

.notification-card.is-unread {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft);
}

.notification-card-button {
  display: grid;
  gap: var(--space-1);
  width: 100%;
  padding: var(--space-4);
  text-align: left;
}

.notification-card-title {
  font-weight: 700;
}

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

.notification-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-2);
}

.push-settings-details {
  position: relative;
  flex: 0 0 auto;
}

.push-settings-summary {
  list-style: none;
  cursor: pointer;
}

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

.push-settings-panel {
  display: grid;
  gap: var(--space-3);
  position: absolute;
  right: 0;
  z-index: 5;
  width: min(86vw, 360px);
  margin-top: var(--space-2);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
}

.push-settings-panel.is-active {
  border-color: var(--color-success);
}

.notification-preferences-panel {
  width: min(86vw, 390px);
}

.notification-type-list {
  display: grid;
  gap: var(--space-2);
}

.toggle-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 36px;
  color: var(--color-text);
  font-size: var(--font-size-sm);
}

.toggle-row input {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
}

.product-summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  column-gap: var(--space-2);
  row-gap: 7px;
  height: 100%;
  align-content: start;
}

.product-summary-header {
  display: contents;
}

.product-summary > .meta,
.product-summary > .product-url-row,
.product-summary > .product-summary-body,
.product-summary > .comment-summary,
.product-summary > .product-summary-footer,
.product-summary-details {
  grid-column: 1;
}

.product-url-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.product-url-row .meta {
  overflow: hidden;
  min-width: 0;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.product-external-link {
  display: inline-flex;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-block: -8px;
  border-radius: 8px;
  color: var(--color-muted);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.product-external-link:active {
  transform: translateY(1px);
}

@media (hover: hover) {
  .product-external-link:hover {
    color: var(--color-primary-strong);
    background: var(--color-primary-soft);
  }
}

.product-summary-side {
  display: grid;
  grid-column: 2;
  grid-row: 1 / span 5;
  gap: 6px;
  justify-items: end;
  align-self: start;
}

.product-thumbnail-wrap {
  display: block;
}

.product-thumbnail {
  display: block;
  width: 112px;
  height: 112px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  object-fit: cover;
}

.summary-badges {
  display: flex;
  grid-column: 2;
  grid-row: 1 / span 5;
  flex-direction: column;
  gap: 6px;
  justify-content: flex-end;
  align-items: flex-start;
  justify-self: end;
}

.comparison-summary-side {
  display: grid;
  grid-column: 2;
  grid-row: 1 / span 5;
  gap: 8px;
  justify-items: end;
  align-content: start;
  align-self: start;
  justify-self: end;
}

.comparison-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  justify-content: flex-end;
}

.product-title-button {
  width: auto;
  min-width: 0;
}

.product-summary-details {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: 7px;
}

.product-summary-body {
  display: grid;
  align-content: start;
  gap: 7px;
  padding-top: 2px;
}

.product-summary-footer {
  align-self: end;
}

.comment-summary {
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 650;
  line-height: 1.35;
}

.summary-placeholder {
  display: none;
}

.product-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.meta {
  color: var(--color-muted);
  font-size: 13px;
}

/* Forms */
.form-grid {
  display: grid;
  gap: var(--space-3);
  min-width: 0;
}

.field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.label {
  font-size: 14px;
  font-weight: 650;
}

.input,
.textarea,
.select {
  max-width: 100%;
  min-width: 0;
  width: 100%;
  min-height: 48px;
  padding: 10px var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.input[type="date"] {
  max-inline-size: 100%;
  min-inline-size: 0;
}

.deadline-date-field {
  overflow: hidden;
}

.deadline-date-field .input[type="date"] {
  display: block;
  box-sizing: border-box;
  inline-size: 100%;
  max-inline-size: 100%;
  min-inline-size: 0;
  width: -webkit-fill-available;
}

.deadline-date-field .input[type="date"]::-webkit-date-and-time-value {
  min-width: 0;
  text-align: left;
}

@supports (-webkit-touch-callout: none) {
  .deadline-date-field .input[type="date"] {
    -webkit-appearance: none;
    appearance: none;
    inline-size: auto;
    width: 100%;
  }

  .deadline-date-field .input[type="date"]::-webkit-date-and-time-value {
    max-width: 100%;
    overflow: hidden;
  }
}

.input:focus,
.textarea:focus,
.select:focus {
  border-color: var(--color-primary);
}

.textarea {
  min-height: 88px;
  resize: vertical;
}

.edit-panel {
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  background: var(--color-primary-soft);
}

.edit-panel .input,
.edit-panel .textarea,
.edit-panel .select {
  background: var(--color-surface);
}

.edit-panel .label {
  color: var(--color-text);
}

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast), opacity var(--transition-fast);
}

.button:active {
  transform: translateY(1px);
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.62;
}

.button-compact {
  min-height: 40px;
  padding: 7px 10px;
  font-size: 14px;
}

.icon-button {
  gap: 8px;
}

.button-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.header-admin-button.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

.header-notification-button.is-active {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

@media (hover: hover) {
  .button:hover {
    border-color: var(--color-border-strong);
    background: var(--color-surface-muted);
  }
}

.button-primary {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-text-inverse);
}

.button.is-dirty {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
}

@media (hover: hover) {
  .button-primary:hover {
    border-color: var(--color-primary-strong);
    background: var(--color-primary-strong);
  }
}

.button-danger {
  border-color: var(--color-danger);
  color: var(--color-danger);
}

@media (hover: hover) {
  .button-danger:hover {
    background: var(--color-danger-soft);
  }
}

.text-button {
  min-height: 36px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-primary);
  font-weight: 700;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

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

/* Product detail and groups */
.product-detail-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: start;
}

.product-detail-title {
  display: grid;
  gap: var(--space-1);
  min-width: 0;
}

.product-detail-title .meta {
  margin: 0;
}

.product-detail-actions,
.set-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-top: var(--space-1);
}

.product-detail-actions .button,
.set-detail-actions .button {
  flex: 1 1 128px;
  min-width: 0;
}

.product-status-actions {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: var(--space-2);
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface-muted);
}

.product-status-actions .button:only-child {
  grid-column: 1 / -1;
}

.product-detail-media {
  display: grid;
  gap: 6px;
  margin: 0;
}

.product-detail-media-button {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  cursor: zoom-in;
}

.product-detail-media-button:focus-visible {
  outline: 0;
  box-shadow: var(--focus-ring);
}

.product-detail-image {
  display: block;
  width: 100%;
  max-height: 220px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  object-fit: contain;
}

.product-media-editor {
  gap: var(--space-2);
}

.media-paste-zone {
  display: grid;
  gap: 4px;
  min-height: 74px;
  padding: 12px;
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.media-paste-zone:focus {
  outline: 0;
  box-shadow: var(--focus-ring);
}

.file-button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin: 0;
}

.file-button input {
  position: absolute;
  inset: 0;
  opacity: 0;
}

.button-detail-primary,
.button-detail-secondary {
  min-height: 42px;
  padding: 8px 12px;
  font-size: 14px;
}

.button-detail-secondary {
  color: var(--color-text);
  font-weight: 700;
}

.set-detail-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: start;
}

.set-detail-title {
  min-width: 0;
}

.set-detail-title .section-title {
  margin-bottom: 0;
}

.set-description {
  margin: 0;
  color: var(--color-text);
}

.group-comparison-form {
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
}

.group-comparison-view {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: 10px;
  border-top: 1px solid var(--color-border);
}

.group-comparison-view > .button-row {
  margin-top: auto;
}

.comparison-notes-readonly {
  display: grid;
  gap: var(--space-4);
}

.comparison-note {
  display: grid;
  gap: 4px;
}

.comparison-note p {
  margin: 0;
  color: var(--color-text);
  white-space: pre-wrap;
}

.group-comments-slot {
  min-height: 0;
}

.group-comments {
  padding: 2px 0;
}

.group-comments summary {
  cursor: pointer;
  list-style-position: inside;
}

.group-comment-list {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.group-comment {
  display: grid;
  gap: var(--space-1);
  padding: 9px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface-muted);
}

.comment-card {
  gap: var(--space-2);
}

.comment-body {
  margin: 0;
  white-space: pre-wrap;
}

.comment-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.danger-zone {
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.danger-compact {
  display: grid;
  gap: var(--space-2);
}

.danger-link-button {
  width: fit-content;
  min-height: 34px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--color-danger);
  font: inherit;
  font-size: 15px;
  font-weight: 800;
  text-align: left;
  cursor: pointer;
}

.danger-link-button:active {
  transform: translateY(1px);
}

@media (hover: hover) {
  .danger-link-button:hover {
    text-decoration: underline;
  }
}

.danger-title {
  margin: 0;
  color: var(--color-danger);
  font-size: 16px;
}

.confirm-row {
  display: grid;
  gap: var(--space-2);
  padding: 10px;
  border: 1px solid var(--color-danger);
  border-radius: var(--radius);
  background: var(--color-danger-soft);
  animation: reveal-confirm var(--transition-medium);
}

.leave-confirm-root {
  position: fixed;
  right: var(--space-3);
  bottom: calc(86px + env(safe-area-inset-bottom));
  left: var(--space-3);
  z-index: 25;
  pointer-events: none;
}

.leave-confirm {
  max-width: 720px;
  margin: 0 auto;
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-text);
  box-shadow: var(--shadow-raised);
  pointer-events: auto;
}