:root {
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--colors-background);
  color: var(--colors-text-primary);
  font-family: var(--typography-font-family);
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

#app {
  min-height: 100vh;
}

.app-shell {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  background: var(--colors-background);
}

.top-bar {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  padding: var(--spacing-scale-4) var(--spacing-scale-5);
  background: var(--colors-surface);
  border-bottom: 1px solid var(--colors-border);
  box-shadow: var(--shadows-card);
  z-index: 200;
}

.app-switcher {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  z-index: 120;
}

.app-switcher-edge {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 12px;
  z-index: 120;
}

.app-switcher-trigger-area.desktop {
  position: relative;
  display: inline-flex;
  z-index: 120;
}

.app-switcher-trigger,
.app-switcher-mobile-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface);
  color: var(--colors-text-primary);
  cursor: pointer;
  font-weight: 600;
}

.app-switcher-trigger .caret {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
}

.app-switcher-menu {
  position: absolute;
  top: calc(100% + var(--spacing-scale-2));
  left: 0;
  min-width: 200px;
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadows-card);
  padding: var(--spacing-scale-3);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
  z-index: 140;
}

.app-switcher-menu.mobile {
  display: none;
}

.app-switcher-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--spacing-scale-1);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.app-switcher-item .item-label {
  font-weight: 700;
}

.app-switcher-item .item-desc {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
}

.app-switcher-item:hover,
.app-switcher-item:focus {
  border-color: var(--colors-border);
  background: var(--colors-surface-muted);
}

.app-switcher-item.active {
  border-color: var(--colors-accent);
  background: var(--colors-surface-muted);
  color: var(--colors-accent-strong);
}

.app-switcher-mobile-trigger {
  display: none;
}

.brand {
  font-size: var(--typography-font-sizes-title);
  line-height: var(--typography-line-heights-title);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--colors-accent-strong);
}

.meta {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.main-grid {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(280px, 360px) 1fr;
  gap: var(--spacing-scale-5);
  padding: var(--spacing-scale-5);
}

.panel {
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadows-card);
  padding: var(--spacing-scale-5);
}

.panel h2 {
  margin: 0 0 var(--spacing-scale-3);
  font-size: var(--typography-font-sizes-section);
  line-height: var(--typography-line-heights-section);
  color: var(--colors-text-primary);
}

.panel p {
  margin: 0;
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
}

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

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

.section-header .controls {
  display: inline-flex;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
}

.home {
  flex: 1;
  background: radial-gradient(circle at 10% 20%, rgba(15,163,177,0.06), transparent 35%), var(--colors-background);
}

.home-layout {
  flex: 1;
  padding: var(--spacing-scale-6) var(--spacing-scale-5) var(--spacing-scale-7);
}

.home-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: var(--spacing-scale-5);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.home-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-5);
  padding: var(--spacing-scale-5);
  border-radius: var(--radius-lg);
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  box-shadow: var(--shadows-card);
}

.home-hero h2 {
  margin: 0 0 var(--spacing-scale-2);
  font-size: var(--typography-font-sizes-section);
  line-height: var(--typography-line-heights-section);
}

.home-hero p {
  margin: 0;
  color: var(--colors-text-secondary);
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-scale-3);
}

.summary-cards .card {
  padding: var(--spacing-scale-4);
  border-radius: var(--radius-md);
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  box-shadow: var(--shadows-card);
}

.card-label {
  display: block;
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  margin-bottom: var(--spacing-scale-2);
}

.card-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--colors-text-primary);
}

.home-section {
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadows-card);
  padding: var(--spacing-scale-4);
}

.home-section h3 {
  margin: 0 0 var(--spacing-scale-3);
  font-size: var(--typography-font-sizes-section);
}

.home-section .meta {
  color: var(--colors-text-secondary);
}

.home-section .task-list {
  max-height: 360px;
  overflow: auto;
}

.tag-highlights {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
}

.tag-highlights h4 {
  margin: 0;
  font-size: var(--typography-font-sizes-body);
}

.tag-highlights .tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-scale-2);
}

.placeholder-card {
  margin-top: var(--spacing-scale-4);
  padding: var(--spacing-scale-4);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--colors-border);
  background: var(--colors-surface-muted);
  color: var(--colors-text-secondary);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-lg);
  background: var(--colors-accent);
  color: var(--colors-text-on-accent);
  font-size: var(--typography-font-sizes-meta);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.badge.muted {
  background: var(--colors-surface-muted);
  color: var(--colors-text-primary);
  border: 1px solid var(--colors-border);
}

.badge-dot {
  width: var(--spacing-scale-2);
  height: var(--spacing-scale-2);
  border-radius: 50%;
  background: var(--colors-text-on-accent);
}

.button-row {
  display: flex;
  gap: var(--spacing-scale-3);
  flex-wrap: wrap;
  margin-top: var(--spacing-scale-4);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  min-height: 44px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 600;
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
  background: var(--colors-accent);
  color: var(--colors-text-on-accent);
  transition: transform var(--motion-transition), box-shadow var(--motion-transition);
}

.button.secondary {
  background: var(--colors-surface);
  color: var(--colors-text-primary);
  border-color: var(--colors-border);
}

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

@media (max-width: 768px) {
  .app-switcher-edge,
  .app-switcher-trigger-area.desktop {
    display: none;
  }

  .app-switcher-mobile-trigger {
    display: inline-flex;
  }

  .app-switcher-menu.mobile {
    position: absolute;
    right: 0;
    left: auto;
    display: flex;
  }

  .home-grid {
    grid-template-columns: 1fr;
  }

  .home-hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .land-layout {
    grid-template-columns: 1fr;
  }

  .land-layout .list {
    max-height: none;
  }
}

.sections {
  display: grid;
  gap: var(--spacing-scale-4);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  margin-bottom: var(--spacing-scale-3);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  background: var(--colors-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--colors-border);
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.pill .dot {
  width: var(--spacing-scale-2);
  height: var(--spacing-scale-2);
  border-radius: 50%;
  background: var(--colors-accent);
}

.workspace-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  margin-bottom: var(--spacing-scale-2);
}

.app-footer {
  padding: var(--spacing-scale-3) var(--spacing-scale-5);
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.login-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 1fr));
  gap: var(--spacing-scale-6);
  padding: var(--spacing-scale-6);
  background: linear-gradient(135deg, var(--colors-background) 0%, #FFFFFF 45%, var(--colors-surface-muted) 100%);
  align-items: center;
}

.login-hero {
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-scale-6);
  box-shadow: var(--shadows-card);
}

.login-hero h1 {
  margin: var(--spacing-scale-3) 0 var(--spacing-scale-2);
  font-size: 28px;
  line-height: 1.2;
  color: var(--colors-text-primary);
}

.login-hero p {
  margin: 0;
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
}

.login-steps {
  display: grid;
  gap: var(--spacing-scale-3);
  margin-top: var(--spacing-scale-5);
}

.step {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--spacing-scale-3);
  align-items: center;
  padding: var(--spacing-scale-3);
  background: var(--colors-surface-muted);
  border-radius: var(--radius-md);
  border: 1px solid var(--colors-border);
  box-shadow: var(--shadows-card);
}

.step-label {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--colors-accent);
  color: var(--colors-text-on-accent);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step strong {
  display: block;
  margin-bottom: var(--spacing-scale-1);
}

.login-card {
  max-width: 480px;
  margin-left: auto;
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-scale-6);
  box-shadow: var(--shadows-card);
}

.login-card__header h2 {
  margin: var(--spacing-scale-2) 0;
  font-size: 22px;
  line-height: 1.3;
  color: var(--colors-text-primary);
}

.login-card__header p {
  margin: 0;
  color: var(--colors-text-secondary);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
}

.form-label {
  margin-top: var(--spacing-scale-2);
  font-weight: 600;
  color: var(--colors-text-primary);
}

.form-input {
  width: 100%;
  padding: var(--spacing-scale-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface-muted);
  color: var(--colors-text-primary);
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
  transition: border-color var(--motion-transition), box-shadow var(--motion-transition), background var(--motion-transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 3px rgba(15, 163, 177, 0.15);
  background: var(--colors-surface);
}

.form-error {
  margin-top: var(--spacing-scale-2);
  padding: var(--spacing-scale-3);
  border-radius: var(--radius-sm);
  background: rgba(209, 67, 67, 0.08);
  border: 1px solid var(--colors-danger);
  color: var(--colors-danger);
  font-weight: 700;
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
  margin-top: var(--spacing-scale-2);
  align-items: flex-start;
}

.helper-text {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-3);
}

.session-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-3);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-lg);
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  box-shadow: var(--shadows-card);
}

.avatar-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--colors-accent-strong);
  color: var(--colors-text-on-accent);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.session-label {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.session-name {
  color: var(--colors-text-primary);
  font-weight: 700;
}

.tasks-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(420px, 1.4fr) minmax(300px, 1fr);
  gap: var(--spacing-scale-5);
  padding: var(--spacing-scale-5);
}

.tasks-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.tasks-column.narrow {
  min-width: 320px;
}

.tasks-controls {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.tasks-controls .actions {
  display: flex;
  gap: var(--spacing-scale-2);
  align-items: center;
}

.tasks-controls__row {
  display: grid;
  gap: var(--spacing-scale-3);
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  align-items: end;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
}

.filter-label {
  font-weight: 600;
  color: var(--colors-text-primary);
  font-size: var(--typography-font-sizes-meta);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.filter-select {
  width: 100%;
  padding: var(--spacing-scale-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface-muted);
  color: var(--colors-text-primary);
  font-size: var(--typography-font-sizes-body);
  line-height: var(--typography-line-heights-body);
  transition: border-color var(--motion-transition), box-shadow var(--motion-transition), background var(--motion-transition);
}

.filter-select:focus {
  outline: none;
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 3px rgba(15, 163, 177, 0.15);
  background: var(--colors-surface);
}

.toggle-row,
.sort-row {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.tasks-controls .button.secondary.active {
  border-color: var(--colors-focus);
  color: var(--colors-focus);
  box-shadow: 0 0 0 2px rgba(15, 163, 177, 0.2);
}

.task-list-panel .section-header .meta {
  color: var(--colors-text-secondary);
}

.task-list {
  display: grid;
  gap: var(--spacing-scale-3);
}

.task-card {
  display: grid;
  gap: var(--spacing-scale-3);
  padding: var(--spacing-scale-4);
  border-radius: var(--radius-md);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface);
  box-shadow: var(--shadows-card);
  cursor: pointer;
  transition: transform var(--motion-transition), box-shadow var(--motion-transition), border-color var(--motion-transition);
}

.task-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

.task-card.selected {
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 3px rgba(15, 163, 177, 0.15);
}

.task-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
}

.title-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-2);
}

.task-card h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  color: var(--colors-text-primary);
}

.meta-row {
  display: flex;
  gap: var(--spacing-scale-3);
  flex-wrap: wrap;
  margin-top: var(--spacing-scale-2);
}

.meta {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

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

.task-card__footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  flex-wrap: wrap;
}

.tags {
  display: flex;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.detail-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-scale-3);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
}

.detail-meta {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  color: var(--colors-text-primary);
  font-weight: 600;
}

.toggle input {
  accent-color: var(--colors-accent);
}

.tag-toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-scale-2);
}

.tag-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-lg);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface-muted);
  color: var(--colors-text-primary);
  cursor: pointer;
  transition: border-color var(--motion-transition), box-shadow var(--motion-transition), background var(--motion-transition);
}

.tag-toggle input {
  accent-color: var(--colors-accent);
}

.tag-toggle.active {
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 2px rgba(15, 163, 177, 0.18);
  background: var(--colors-surface);
}

.detail-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-3);
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  font-size: var(--typography-font-sizes-meta);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.chip.status.todo {
  background: rgba(42, 106, 230, 0.12);
  color: var(--colors-accent);
}

.chip.status.in-progress {
  background: rgba(225, 162, 67, 0.16);
  color: var(--colors-warning);
}

.chip.status.pending,
.chip.status.danger {
  background: rgba(214, 90, 90, 0.14);
  color: var(--colors-danger);
}

.chip.status.done,
.chip.status.success {
  background: rgba(46, 140, 106, 0.14);
  color: var(--colors-success);
}

.chip.status.muted,
.chip.status.neutral {
  background: rgba(82, 96, 109, 0.14);
  color: var(--colors-text-secondary);
}

.chip.priority.high {
  background: rgba(209, 67, 67, 0.14);
  color: var(--colors-danger);
}

.chip.priority.medium {
  background: rgba(245, 158, 11, 0.12);
  color: var(--colors-warning);
}

.chip.priority.low {
  background: rgba(45, 157, 120, 0.12);
  color: var(--colors-success);
}

.chip.tag {
  background: var(--colors-surface);
  border-color: var(--colors-border);
  color: var(--colors-text-secondary);
}

.chip-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-scale-2);
  margin: var(--spacing-scale-3) 0;
}

.chip-bar .button.active {
  background: var(--colors-accent);
  color: var(--colors-text-on-accent);
  border-color: var(--colors-accent);
}

.assignee {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
}

.avatar-circle.sm {
  width: 32px;
  height: 32px;
  font-size: var(--typography-font-sizes-body);
  background: var(--colors-surface-muted);
  color: var(--colors-text-primary);
}

.assignee-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.assignee-label {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  line-height: var(--typography-line-heights-meta);
}

.assignee-name {
  font-weight: 700;
  color: var(--colors-text-primary);
}

.list-panel {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
}

.list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  padding: var(--spacing-scale-2) 0;
}

.pagination .button-row {
  margin: 0;
}

button.list-row {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  padding: var(--spacing-scale-3) var(--spacing-scale-4);
  min-height: 48px;
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-md);
  background: var(--colors-surface);
  cursor: pointer;
  text-align: left;
  transition: border-color var(--motion-transition), box-shadow var(--motion-transition), background var(--motion-transition);
}

button.list-row:hover,
button.list-row:focus {
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 3px rgba(15, 163, 177, 0.12);
  outline: none;
}

button.list-row.selected {
  border-color: var(--colors-focus);
  background: var(--colors-surface-muted);
  box-shadow: 0 0 0 2px rgba(15, 163, 177, 0.15);
}

button.list-row .title {
  font-weight: 700;
  color: var(--colors-text-primary);
}

button.list-row .meta {
  display: block;
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
}

.state {
  padding: var(--spacing-scale-4);
  border-radius: var(--radius-md);
  border: 1px dashed var(--colors-border);
  background: var(--colors-surface-muted);
  text-align: center;
  color: var(--colors-text-secondary);
}

.state.error .form-error {
  margin: 0 auto;
}

.spinner {
  width: 28px;
  height: 28px;
  margin: 0 auto var(--spacing-scale-2);
  border-radius: 50%;
  border: 3px solid var(--colors-border);
  border-top-color: var(--colors-accent);
  animation: spin 1s linear infinite;
}

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

.task-preview .meta-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-scale-3);
  margin: var(--spacing-scale-3) 0;
}

.meta-label {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-scale-1);
}

.preview-body h3 {
  margin: 0;
}

.task-preview .tags {
  margin-bottom: var(--spacing-scale-3);
}

.theme-toggle-container {
  position: fixed;
  bottom: var(--spacing-scale-4);
  left: var(--spacing-scale-4);
  z-index: 20;
}

.theme-toggle {
  display: inline-flex;
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadows-card);
}

.theme-toggle__btn {
  border: none;
  background: transparent;
  padding: var(--spacing-scale-3) var(--spacing-scale-4);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  cursor: pointer;
  color: var(--colors-text-secondary);
}

.theme-toggle__btn.active {
  color: var(--colors-text-primary);
  font-weight: 700;
  background: var(--colors-surface-muted);
}

.theme-toggle__btn + .theme-toggle__btn {
  border-left: 1px solid var(--colors-border);
}

.theme-toggle .icon {
  font-size: 14px;
}

.land-layout {
  display: grid;
  gap: var(--spacing-scale-4);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: start;
}

.land-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.land-column.narrow {
  min-width: 300px;
}

.land-layout .list-panel {
  position: relative;
}

.land-layout .list-panel .section-header {
  position: sticky;
  top: var(--spacing-scale-4);
  background: var(--colors-surface);
  padding-bottom: var(--spacing-scale-2);
  z-index: 5;
}

.land-layout .list {
  max-height: calc(100vh - 220px);
  overflow: auto;
  padding-right: var(--spacing-scale-1);
}

/* Login */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--colors-background), var(--colors-surface-muted));
  padding: var(--spacing-scale-7);
}

.login-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-scale-6);
  align-items: center;
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-scale-6);
  box-shadow: var(--shadows-card);
  max-width: 960px;
  width: 100%;
}

.login-panel__brand h1 {
  margin: var(--spacing-scale-3) 0 var(--spacing-scale-2);
  font-size: 28px;
  letter-spacing: -0.02em;
}

.login-panel__brand p {
  margin: 0;
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-body);
}

.login-card {
  background: var(--colors-surface-muted);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-scale-5);
}

.login-card__header {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
  margin-bottom: var(--spacing-scale-4);
}

.login-card h2 {
  margin: 0;
}

.login-form {
  display: grid;
  gap: var(--spacing-scale-3);
}

.form-label {
  font-weight: 600;
  font-size: var(--typography-font-sizes-body);
  color: var(--colors-text-primary);
}

.form-input, .filter-select, .detail-form select.form-input {
  width: 100%;
  padding: var(--spacing-scale-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--colors-border);
  background: var(--colors-surface);
  color: var(--colors-text-primary);
  font-size: var(--typography-font-sizes-body);
}

.form-input:focus, .filter-select:focus {
  outline: 2px solid var(--colors-focus);
  border-color: var(--colors-focus);
}

.form-error {
  padding: var(--spacing-scale-3);
  background: rgba(209, 67, 67, 0.1);
  color: var(--colors-danger);
  border: 1px solid var(--colors-danger);
  border-radius: var(--radius-sm);
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
}

.helper-text {
  color: var(--colors-text-secondary);
  font-size: var(--typography-font-sizes-meta);
}

/* Tasks layout */
.tasks-layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(320px, 400px) 1fr;
  gap: var(--spacing-scale-5);
  padding: var(--spacing-scale-5);
}

.tasks-column {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.tasks-column.narrow {
  min-width: 360px;
}

.tasks-controls.compact .controls-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  margin-bottom: var(--spacing-scale-3);
}

.tasks-controls.compact h3 {
  margin: 0;
}

.controls-actions {
  display: flex;
  gap: var(--spacing-scale-2);
}

.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--spacing-scale-3);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-2);
}

.filter-label {
  font-size: var(--typography-font-sizes-meta);
  color: var(--colors-text-secondary);
}

.chip-row {
  display: flex;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.task-pane {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.tasks-hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-4);
}

.tasks-hero h2 {
  margin: 0 0 var(--spacing-scale-2) 0;
  font-size: var(--typography-font-sizes-section);
  line-height: var(--typography-line-heights-section);
}

.tasks-hero p {
  margin: 0;
  color: var(--colors-text-secondary);
}

.tasks-hero .button-row {
  display: flex;
  gap: var(--spacing-scale-2);
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
}

.task-card {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-scale-4);
  background: var(--colors-surface);
  transition: border-color var(--motion-transition), box-shadow var(--motion-transition), transform var(--motion-transition);
  cursor: pointer;
  text-align: left;
}

.task-card:focus-visible {
  outline: 2px solid var(--colors-focus);
  outline-offset: 2px;
}

.task-card:hover {
  border-color: var(--colors-focus);
  box-shadow: var(--shadows-card);
  transform: translateY(-1px);
}

.task-card.selected {
  border-color: var(--colors-focus);
  box-shadow: 0 0 0 2px rgba(42, 106, 230, 0.15);
}

.task-card__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
}

.task-card__status {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
}

.title-row {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-2);
}

.task-card h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  color: var(--colors-text-primary);
}

.meta-row, .task-card__footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.description {
  color: var(--colors-text-secondary);
  margin: 0;
  line-height: 1.5;
}

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

.detail-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-4);
}

.detail-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-2);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-scale-3);
}

.quick-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--spacing-scale-3);
}

.disclosure {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
}

.detail-actions {
  display: flex;
  gap: var(--spacing-scale-3);
  align-items: center;
  flex-wrap: wrap;
}

.detail-shell {
  position: relative;
  z-index: 25;
}

.detail-sheet__backdrop {
  display: none;
}

.detail-sheet__panel {
  position: relative;
  z-index: 1;
}

.more-filters {
  position: fixed;
  inset: 0;
  z-index: 30;
  pointer-events: none;
}

.more-filters__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  opacity: 0;
  transition: opacity var(--motion-transition);
}

.more-filters__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(420px, 90vw);
  height: 100%;
  background: var(--colors-surface);
  border-left: 1px solid var(--colors-border);
  box-shadow: -8px 0 30px rgba(0, 0, 0, 0.12);
  padding: var(--spacing-scale-5);
  transform: translateX(100%);
  transition: transform var(--motion-transition);
  overflow-y: auto;
}

.more-filters__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-scale-3);
  margin-bottom: var(--spacing-scale-3);
}

.more-filters__header h4 {
  margin: 0;
}

.more-filters__header p {
  margin: var(--spacing-scale-1) 0 0 0;
  color: var(--colors-text-secondary);
}

.more-filters__footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-scale-2);
  margin-top: var(--spacing-scale-4);
}

.more-filters.open {
  pointer-events: auto;
}

.more-filters.open .more-filters__backdrop {
  opacity: 1;
}

.more-filters.open .more-filters__panel {
  transform: translateX(0);
}

.tag-selector {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-scale-3);
  background: var(--colors-surface-muted);
  padding: var(--spacing-scale-3);
  border-radius: var(--radius-md);
  border: 1px dashed var(--colors-border);
}

.selected-tags, .available-tags {
  display: flex;
  gap: var(--spacing-scale-2);
  flex-wrap: wrap;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-scale-2);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
  border-radius: var(--radius-lg);
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
}

.tag-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-scale-2);
  width: 100%;
  background: var(--colors-surface);
  border: 1px solid var(--colors-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-scale-2) var(--spacing-scale-3);
}

.tag-row__actions {
  display: flex;
  gap: var(--spacing-scale-2);
}

.tag-input {
  display: flex;
  gap: var(--spacing-scale-2);
}

.icon-button {
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--colors-text-secondary);
}

.link {
  background: none;
  border: none;
  color: var(--colors-focus);
  cursor: pointer;
  font-weight: 600;
}

.link.danger {
  color: var(--colors-danger);
}

@media (max-width: 900px) {
  .login-panel {
    grid-template-columns: 1fr;
  }
  .tasks-layout {
    grid-template-columns: 1fr;
  }
  .tasks-column.narrow {
    min-width: 100%;
  }
  .land-column.narrow {
    min-width: 100%;
  }
}
@media (max-width: 960px) {
  .main-grid {
    grid-template-columns: 1fr;
  }

  .tasks-layout {
    grid-template-columns: 1fr;
    padding: var(--spacing-scale-4);
  }

  .tasks-column.narrow {
    min-width: auto;
  }
  .land-column.narrow {
    min-width: auto;
  }

  .top-bar {
    position: static;
  }

  .detail-shell {
    position: fixed;
    inset: 0;
    pointer-events: none;
  }

  .detail-sheet__backdrop {
    display: block;
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    opacity: 0;
    transition: opacity var(--motion-transition);
  }

  .detail-sheet__panel {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    transform: translateY(100%);
    transition: transform var(--motion-transition);
    max-height: 82vh;
    pointer-events: auto;
  }

  .detail-sheet__panel .panel {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    box-shadow: 0 -12px 30px rgba(0, 0, 0, 0.16);
  }

  .detail-shell.open {
    pointer-events: auto;
  }

  .detail-shell.open .detail-sheet__backdrop {
    opacity: 1;
  }

  .detail-shell.open .detail-sheet__panel {
    transform: translateY(0);
  }

  .more-filters__panel {
    width: 100%;
  }

  .login-page {
    grid-template-columns: 1fr;
    padding: var(--spacing-scale-5);
  }

  .login-card {
    margin: 0;
  }
}