/* PhotoAtelier R4-B: App shell, Plan Library, New Plan */
/* Neutral charcoal + muted sage tokens; photography supplies color. */

:root {
  --r4-canvas: #111312;
  --r4-raised: #191D1B;
  --r4-pressed: #242A27;
  --r4-subtle: #151816;
  --r4-border: #303833;
  --r4-text-primary: #F2F5F1;
  --r4-text-secondary: #B5BDB6;
  --r4-text-tertiary: #7D887F;
  --r4-action: #8DB89E;
  --r4-action-pressed: #6E9A80;
  --r4-action-soft: rgba(141, 184, 158, 0.12);
  --r4-warning: #D6A75B;
  --r4-danger: #D9776D;
  --r4-success: #75B892;

  --r4-nav-width: 216px;
  --r4-radius: 8px;
  --r4-radius-sheet: 16px;
  --r4-space-4: 4px;
  --r4-space-8: 8px;
  --r4-space-12: 12px;
  --r4-space-16: 16px;
  --r4-space-24: 24px;
  --r4-space-32: 32px;

  /* Remap legacy shell variables so existing components adopt R4 quietly */
  --bg: var(--r4-canvas);
  --bg2: var(--r4-raised);
  --bg3: var(--r4-pressed);
  --bg4: #2A312C;
  --bg-sidebar: var(--r4-subtle);
  --bg-panel: var(--r4-raised);
  --bg-subtle: rgba(255, 255, 255, 0.03);
  --bg-subtle2: rgba(255, 255, 255, 0.06);
  --border-subtle: var(--r4-border);
  --border-subtle2: #3A423C;
  --bd: var(--r4-border);
  --bd2: #3A423C;
  --t1: var(--r4-text-primary);
  --t2: var(--r4-text-secondary);
  --t3: var(--r4-text-tertiary);
  --ac: var(--r4-action);
  --ac2: var(--r4-action-pressed);
  --ach: #A3C9AF;
  --ac-glow: var(--r4-action-soft);
  --ok: var(--r4-success);
  --er: var(--r4-danger);
  --warn: var(--r4-warning);
  --info: #8DB89E;
  --radius: var(--r4-radius);
  --radius-sm: 6px;
  --radius-lg: var(--r4-radius);
  --sidebar-w: var(--r4-nav-width);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.24), 0 4px 12px rgba(0, 0, 0, 0.16);
  --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.28);
}

body {
  font-family: Inter, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Noto Sans SC", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--r4-canvas);
  color: var(--r4-text-primary);
  letter-spacing: 0;
}

h1, h2, h3, h4 {
  letter-spacing: 0;
}

.bg-orb,
body::after {
  display: none !important;
}

/* Sidebar */
.sidebar {
  width: var(--r4-nav-width);
  background: var(--r4-subtle);
  border-right: 1px solid var(--r4-border);
}

.sidebar-brand {
  border-bottom: 1px solid var(--r4-border);
}

.brand-dot {
  background: var(--r4-action);
}

.brand-text {
  color: var(--r4-text-primary);
  font-weight: 600;
  font-size: 15px;
}

.sidebar-nav {
  padding: var(--r4-space-8);
  gap: var(--r4-space-4);
}

.nav-item {
  gap: var(--r4-space-12);
  padding: 10px var(--r4-space-12);
  border-radius: var(--r4-radius);
  color: var(--r4-text-secondary);
  font-size: 14px;
  line-height: 20px;
  font-weight: 500;
  min-height: 40px;
  position: relative;
}

.nav-item::before {
  display: none;
}

.nav-item:hover {
  background: var(--r4-pressed);
  color: var(--r4-text-primary);
}

.nav-item.active {
  background: var(--r4-pressed);
  color: var(--r4-action);
}

.nav-item svg,
.nav-item .lucide {
  width: 20px;
  height: 20px;
  opacity: 0.9;
  color: inherit;
}

.nav-badge {
  background: var(--r4-pressed);
  color: var(--r4-text-tertiary);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 600;
}

.main-content {
  margin-left: var(--r4-nav-width);
  background: var(--r4-canvas);
}

.user-avatar-button {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid transparent;
  border-radius: 50%;
  background: var(--r4-action);
  color: #121412;
  font: inherit;
  font-size: 12px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
}

.user-avatar-button:hover {
  background: var(--r4-action-pressed);
}

.user-avatar-button:focus-visible {
  outline: 2px solid var(--r4-text-primary);
  outline-offset: 2px;
}

/* Main content surface */
.tab-cnt {
  padding: var(--r4-space-24);
  max-width: 1500px;
}

.tab-cnt.active {
  display: block;
  animation: r4-fade-in 180ms ease-out;
}

/* Resource workspace secondary navigation */
.r4-resource-secondary-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--r4-space-8);
  padding: var(--r4-space-16) var(--r4-space-24);
  border-bottom: 1px solid var(--r4-border);
  background-color: var(--r4-raised);
}

.r4-resource-nav-item {
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--r4-space-8);
  min-height: 36px;
  padding: 0 var(--r4-space-16);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--r4-text-secondary);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out, border-color 160ms ease-out;
}

.r4-resource-nav-item:hover:not(:disabled):not([aria-disabled="true"]) {
  background-color: var(--r4-pressed);
  color: var(--r4-text-primary);
}

.r4-resource-nav-item.active,
.r4-resource-nav-item[aria-selected="true"] {
  background-color: var(--r4-pressed);
  border-color: var(--r4-border);
  color: var(--r4-text-primary);
}

.r4-resource-return-bar {
  display: flex;
  align-items: center;
  padding: var(--r4-space-12) var(--r4-space-24);
  border-bottom: 1px solid var(--r4-border);
  background-color: var(--r4-raised);
}

.r4-resource-return-btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: var(--r4-space-8);
  min-height: 36px;
  padding: 0 var(--r4-space-12);
  background-color: transparent;
  border: 1px solid transparent;
  border-radius: var(--r4-radius);
  color: var(--r4-text-secondary);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 160ms ease-out, color 160ms ease-out;
}

.r4-resource-return-btn:hover:not(:disabled):not([aria-disabled="true"]) {
  background-color: var(--r4-pressed);
  color: var(--r4-text-primary);
}

.r4-resource-module-mount {
  display: contents;
}

#tab-resources .resource-content {
  display: none;
}

#tab-resources .resource-content.active {
  display: block;
}

.resource-content.is-v5-mounted > .grid,
.resource-content.is-v5-mounted > .r4-empty-state {
  display: none;
}

.r4-resource-workspace {
  min-height: calc(100vh - 190px);
  display: grid;
  grid-template-columns: minmax(280px, 34%) minmax(0, 1fr);
  background: var(--r4-surface);
}

.r4-resource-master {
  min-width: 0;
  border-right: 1px solid var(--r4-border);
  background: var(--r4-raised);
}

.r4-resource-master__header {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--r4-space-12);
  padding: var(--r4-space-12) var(--r4-space-24);
}

.r4-resource-master__header > div {
  display: flex;
  align-items: baseline;
  gap: var(--r4-space-8);
}

.r4-resource-master__header span,
.r4-resource-summary__intro span,
.r4-resource-detail-card header > div > span,
.r4-resource-form header span {
  color: var(--r4-text-secondary);
  font-size: 13px;
}

.r4-resource-master__header strong {
  color: var(--r4-text-tertiary);
  font-size: 12px;
  font-weight: 500;
}

.r4-resource-add-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.r4-resource-add-button svg {
  width: 15px;
  height: 15px;
}

.r4-icon-button {
  width: 36px;
  height: 36px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 36px;
  padding: 0;
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: transparent;
  color: var(--r4-text-secondary);
  cursor: pointer;
}

.r4-icon-button:hover {
  background: var(--r4-pressed);
  color: var(--r4-text-primary);
}

.r4-icon-button svg,
.r4-resource-search svg,
.r4-resource-list-card__icon svg,
.r4-resource-detail-card__icon svg,
.r4-resource-detail-empty svg,
.r4-resource-summary-group svg,
.r4-resource-assignment-note svg {
  width: 17px;
  height: 17px;
}

.r4-resource-search {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: var(--r4-space-8);
  margin: 0 var(--r4-space-16) var(--r4-space-12);
  padding: 0 var(--r4-space-12);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-surface);
  color: var(--r4-text-tertiary);
}

.r4-resource-search input {
  min-width: 0;
  width: 100%;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--r4-text-primary);
  font: inherit;
  font-size: 13px;
}

.r4-resource-list {
  display: grid;
  gap: 2px;
  padding: 0 var(--r4-space-8) var(--r4-space-16);
}

.r4-resource-list-card {
  min-width: 0;
  min-height: 64px;
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--r4-space-8);
  padding: var(--r4-space-8) var(--r4-space-12);
  border: 1px solid transparent;
  border-radius: var(--r4-radius);
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.r4-resource-list-card:hover,
.r4-resource-list-card.is-active {
  border-color: var(--r4-border);
  background: var(--r4-selected);
}

.r4-resource-list-card__icon,
.r4-resource-detail-card__icon {
  display: grid;
  place-items: center;
  color: var(--r4-text-secondary);
}

.r4-resource-list-card__copy {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.r4-resource-list-card__copy strong,
.r4-resource-list-card__copy small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.r4-resource-list-card__copy strong {
  color: var(--r4-text-primary);
  font-size: 14px;
  font-weight: 600;
}

.r4-resource-list-card__copy small {
  color: var(--r4-text-tertiary);
  font-size: 12px;
}

.r4-resource-selected-badge {
  padding: 3px 7px;
  border-radius: 999px;
  background: var(--r4-selected);
  color: var(--r4-action);
  font-size: 11px;
}

.r4-resource-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--r4-success, #73a889);
}

.r4-resource-status-dot.is-pending {
  background: var(--r4-warning, #c9a35f);
}

.r4-resource-list-empty,
.r4-resource-detail-empty {
  padding: var(--r4-space-24);
  color: var(--r4-text-tertiary);
  font-size: 13px;
  line-height: 1.6;
}

.r4-resource-list-empty p {
  margin: 0 0 var(--r4-space-16);
}

.r4-resource-detail {
  min-width: 0;
  padding: clamp(20px, 4vw, 48px);
}

.r4-resource-detail-card,
.r4-resource-form {
  width: min(720px, 100%);
  margin: 0 auto;
}

.r4-resource-detail-card > header,
.r4-resource-form > header {
  display: flex;
  align-items: flex-start;
  gap: var(--r4-space-16);
  margin-bottom: var(--r4-space-24);
}

.r4-resource-detail-card header > div,
.r4-resource-form header > div {
  min-width: 0;
  flex: 1;
}

.r4-resource-detail-card h2,
.r4-resource-form h2 {
  margin: 4px 0 6px;
  color: var(--r4-text-primary);
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
}

.r4-resource-detail-card header p {
  margin: 0;
  color: var(--r4-text-tertiary);
  font-size: 13px;
}

.r4-resource-detail-card dl {
  margin: 0;
  border-top: 1px solid var(--r4-border);
}

.r4-resource-detail-card dl > div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: var(--r4-space-16);
  padding: var(--r4-space-12) 0;
  border-bottom: 1px solid var(--r4-border);
}

.r4-resource-detail-card dt,
.r4-resource-detail-card dd {
  margin: 0;
  font-size: 13px;
}

.r4-resource-detail-card dt {
  color: var(--r4-text-tertiary);
}

.r4-resource-detail-card dd {
  color: var(--r4-text-primary);
}

.r4-resource-detail-card__actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--r4-space-12);
  margin-top: var(--r4-space-24);
}

.r4-resource-assignment-option {
  display: flex;
  align-items: center;
  gap: var(--r4-space-8);
  color: var(--r4-text-secondary);
  font-size: 12px;
}

.r4-resource-assignment-option input {
  width: 64px;
}

.r4-resource-assignment-check {
  color: var(--r4-text-secondary);
  font-size: 12px;
}

.r4-resource-assignment-note,
.r4-resource-consent-warning {
  display: flex;
  align-items: center;
  gap: var(--r4-space-8);
  margin-top: var(--r4-space-16);
  padding: var(--r4-space-12);
  border-radius: var(--r4-radius);
  background: var(--r4-selected);
  color: var(--r4-text-secondary);
  font-size: 12px;
}

.r4-resource-consent-warning {
  background: rgba(199, 112, 112, 0.12);
  color: #c77070;
}

.r4-resource-form__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--r4-space-16);
  margin-bottom: var(--r4-space-24);
}

.r4-resource-form label {
  display: grid;
  gap: 7px;
  color: var(--r4-text-secondary);
  font-size: 12px;
}

.r4-resource-form label.wide {
  grid-column: 1 / -1;
}

.r4-resource-form input,
.r4-resource-form select,
.r4-resource-form textarea {
  width: 100%;
  min-height: 40px;
  padding: 9px 11px;
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-raised);
  color: var(--r4-text-primary);
  font: inherit;
  font-size: 13px;
}

.r4-resource-form textarea {
  min-height: 84px;
  resize: vertical;
}

.r4-resource-summary {
  padding: clamp(20px, 3vw, 40px);
}

.r4-resource-summary__intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--r4-space-16);
  margin-bottom: var(--r4-space-24);
}

.r4-resource-summary__intro > div {
  display: grid;
  gap: 5px;
}

.r4-resource-summary__intro strong {
  color: var(--r4-text-primary);
  font-size: 20px;
  line-height: 1.3;
}

.r4-resource-summary__intro small {
  color: var(--r4-text-tertiary);
  font-size: 12px;
}

.r4-resource-summary__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--r4-space-12);
}

.r4-resource-summary-group {
  min-width: 0;
  padding: var(--r4-space-16);
  border: 1px solid var(--r4-border);
  border-radius: 8px;
  background: var(--r4-raised);
}

.r4-resource-summary-group header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--r4-space-8);
}

.r4-resource-summary-group header > div {
  display: flex;
  align-items: center;
  gap: var(--r4-space-8);
  color: var(--r4-text-secondary);
}

.r4-resource-summary-group header span {
  color: var(--r4-text-tertiary);
  font-size: 12px;
}

.r4-resource-summary-group > button {
  width: 100%;
  display: block;
  padding: 8px 0;
  border: 0;
  border-top: 1px solid var(--r4-border);
  background: transparent;
  color: var(--r4-text-primary);
  font: inherit;
  font-size: 13px;
  text-align: left;
  cursor: pointer;
}

.r4-resource-summary-group > button.is-empty {
  color: var(--r4-text-tertiary);
}

.r4-embedded-lut-workspace {
  display: block;
}

@media (max-width: 760px) {
  .r4-resource-secondary-nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding: var(--r4-space-12);
  }

  .r4-resource-nav-item {
    flex: 0 0 auto;
  }

  .r4-resource-workspace {
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .r4-resource-master {
    border-right: 0;
    border-bottom: 1px solid var(--r4-border);
  }

  .r4-resource-detail {
    padding: var(--r4-space-24) var(--r4-space-16);
  }

  .r4-resource-form__grid,
  .r4-resource-summary__grid {
    grid-template-columns: 1fr;
  }

  .r4-resource-detail-card dl > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .r4-resource-detail-card__actions {
    align-items: stretch;
    flex-direction: column;
  }
}

@keyframes r4-fade-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .tab-cnt.active { animation: none; }
}

/* Page header */
.r4-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--r4-space-16);
  margin-bottom: var(--r4-space-24);
  min-height: 48px;
}

.r4-page-header h1 {
  font-size: 30px;
  line-height: 38px;
  font-weight: 700;
  color: var(--r4-text-primary);
  margin: 0;
}

.r4-page-header p {
  font-size: 15px;
  line-height: 22px;
  color: var(--r4-text-secondary);
  margin: var(--r4-space-4) 0 0;
}

/* Buttons - reinforce R4 treatment on legacy classes */
.btn {
  border-radius: var(--r4-radius);
  font-weight: 600;
  font-size: 13px;
  line-height: 18px;
  transition: background 160ms ease-out, color 160ms ease-out, border-color 160ms ease-out, transform 120ms ease-out;
}

.btn-p {
  background: var(--r4-action);
  color: #0B120E;
  border: 1px solid var(--r4-action);
}

.btn-p:hover {
  background: var(--r4-action-pressed);
  border-color: var(--r4-action-pressed);
}

.btn-s {
  background: var(--r4-raised);
  color: var(--r4-text-secondary);
  border: 1px solid var(--r4-border);
}

.btn-s:hover {
  background: var(--r4-pressed);
  color: var(--r4-text-primary);
}

.btn-sm {
  padding: 6px 12px;
  min-height: 32px;
}

/* Plan Library */
.r4-plan-library-shell {
  max-width: 1200px;
}

.r4-plan-library-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.r4-empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--r4-space-32) var(--r4-space-16);
  color: var(--r4-text-secondary);
  background: var(--r4-raised);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
}

.r4-empty-state svg {
  width: 48px;
  height: 48px;
  margin-bottom: var(--r4-space-16);
  color: var(--r4-text-tertiary);
}

.r4-empty-state h3 {
  font-size: 17px;
  line-height: 24px;
  font-weight: 600;
  color: var(--r4-text-primary);
  margin: 0 0 var(--r4-space-8);
}

.r4-empty-state p {
  font-size: 13px;
  line-height: 18px;
  color: var(--r4-text-tertiary);
  margin: 0 0 var(--r4-space-16);
  max-width: 360px;
}

.r4-plan-card {
  display: grid;
  grid-template-columns: 112px minmax(220px, 1.5fr) 160px 92px 120px 44px;
  gap: var(--r4-space-16);
  align-items: center;
  min-height: 104px;
  padding: var(--r4-space-12) var(--r4-space-16);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--r4-border);
  border-radius: 0;
  transition: background 160ms ease-out;
}

.r4-plan-card:hover {
  background: var(--r4-subtle);
}

.r4-plan-card__visual {
  width: 112px;
  aspect-ratio: 16 / 10;
  background: var(--r4-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  overflow: hidden;
}

.r4-plan-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.r4-plan-card__placeholder {
  width: 48px;
  height: 48px;
  color: var(--r4-text-tertiary);
}

.r4-plan-card__placeholder svg {
  width: 100%;
  height: 100%;
}

.r4-plan-card__content {
  min-width: 0;
  display: grid;
  gap: var(--r4-space-4);
}

.r4-plan-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--r4-space-8);
}

.r4-plan-card__top .r4-meta {
  display: none;
}

.r4-status {
  display: inline-flex;
  align-items: center;
  gap: var(--r4-space-8);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  line-height: 16px;
  font-weight: 600;
  background: var(--r4-pressed);
  color: var(--r4-text-secondary);
  border: 1px solid var(--r4-border);
}

.r4-status--candidate { color: var(--r4-text-secondary); }
.r4-status--confirmed { color: var(--r4-action); }
.r4-status--scheduled { color: var(--r4-warning); }

.r4-meta {
  font-size: 12px;
  line-height: 16px;
  color: var(--r4-text-tertiary);
  white-space: nowrap;
}

.r4-plan-card__title {
  font-size: 17px;
  line-height: 24px;
  font-weight: 600;
  color: var(--r4-text-primary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.r4-plan-card__detail {
  font-size: 13px;
  line-height: 18px;
  color: var(--r4-text-secondary);
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.r4-plan-card__action {
  display: flex;
  justify-content: flex-end;
}

.r4-plan-card__action .btn {
  width: 36px;
  height: 36px;
  padding: 0;
}

.r4-plan-card__metric {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.r4-plan-card__metric span {
  font-size: 11px;
  line-height: 16px;
  color: var(--r4-text-tertiary);
}

.r4-plan-card__metric strong {
  overflow: hidden;
  color: var(--r4-text-secondary);
  font-size: 13px;
  line-height: 18px;
  font-weight: 500;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.r4-plan-card__progress {
  display: grid;
  gap: 6px;
  color: var(--r4-text-secondary);
  font-size: 12px;
}

.r4-plan-card__progress > div {
  height: 3px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--r4-border);
}

.r4-plan-card__progress i {
  display: block;
  height: 100%;
  background: var(--r4-action);
}

.r4-plan-library-toolbar {
  display: flex;
  align-items: center;
  gap: var(--r4-space-12);
  margin-bottom: var(--r4-space-16);
  padding: var(--r4-space-12);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-raised);
}

.r4-plan-library-search {
  position: relative;
  flex: 1;
}

.r4-plan-library-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  width: 16px;
  height: 16px;
  color: var(--r4-text-tertiary);
  transform: translateY(-50%);
  pointer-events: none;
}

.r4-plan-library-search input,
.r4-plan-library-filter select {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-subtle);
  color: var(--r4-text-primary);
  font: inherit;
}

.r4-plan-library-search input {
  padding: 8px 12px 8px 36px;
}

.r4-plan-library-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--r4-text-tertiary);
  font-size: 12px;
}

.r4-plan-library-filter span {
  flex: 0 0 auto;
  white-space: nowrap;
}

.r4-plan-library-filter select {
  min-width: 132px;
  padding: 8px 10px;
}

.top-actions > button[onclick*="showTab('gen')"] {
  display: none !important;
}

.r4-page-header h1 small {
  margin-left: 6px;
  color: var(--r4-text-tertiary);
  font-size: 13px;
  font-weight: 500;
}

/* New Plan - compact brief */
#tab-gen .plan-shell {
  display: block;
  max-width: 820px;
  margin: 0 auto;
  padding: 0;
}

#tab-gen .plan-shell:has(#outCnt.active) {
  max-width: 1500px;
}

#tab-gen .plan-shell:has(#outCnt.active) .plan-brief-panel {
  display: none;
}

#tab-gen .plan-shell:has(#outCnt.active) .plan-output-panel {
  margin-top: 0;
}

#tab-gen .plan-shell.is-editing-brief {
  max-width: 820px;
}

#tab-gen .plan-shell.is-editing-brief .plan-brief-panel {
  display: block;
}

#tab-gen .plan-shell.is-editing-brief .plan-output-panel {
  display: none;
}

#tab-gen .plan-brief-panel {
  background: var(--r4-raised);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  position: static;
  max-height: none;
  overflow: visible;
}

#tab-gen .plan-hero {
  padding: var(--r4-space-16) var(--r4-space-24);
  border-bottom: 1px solid var(--r4-border);
}

#tab-gen .plan-eyebrow {
  color: var(--r4-action);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0;
  margin: 0 0 var(--r4-space-4);
}

#tab-gen .plan-hero h2 {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
}

#tab-gen .plan-hero p {
  font-size: 13px;
  line-height: 18px;
  color: var(--r4-text-secondary);
}

#tab-gen .plan-brief-form {
  padding: var(--r4-space-24);
}

#tab-gen .brief-grid--primary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--r4-space-16);
}

#tab-gen .brief-grid--primary .brief-span {
  grid-column: 1 / -1;
}

#tab-gen .brief-grid--primary .fg label {
  display: block;
  font-size: 12px;
  line-height: 16px;
  font-weight: 600;
  color: var(--r4-text-secondary);
  margin-bottom: var(--r4-space-8);
}

#tab-gen .brief-grid--primary input,
#tab-gen .brief-grid--primary select,
#tab-gen .brief-grid--primary textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-subtle);
  color: var(--r4-text-primary);
  font-size: 14px;
  line-height: 20px;
}

#tab-gen .brief-grid--primary input:focus,
#tab-gen .brief-grid--primary select:focus,
#tab-gen .brief-grid--primary textarea:focus {
  outline: 2px solid var(--r4-action);
  outline-offset: 2px;
  border-color: var(--r4-action);
}

#tab-gen .plan-quick-templates {
  padding: var(--r4-space-16) var(--r4-space-24) 0;
}

#tab-gen .plan-quick-templates__label {
  font-size: 12px;
  line-height: 16px;
  font-weight: 600;
  color: var(--r4-text-tertiary);
  margin-bottom: var(--r4-space-8);
}

#tab-gen .plan-quick-templates__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--r4-space-8);
}

#tab-gen .plan-quick-template {
  padding: 6px 12px;
  border-radius: var(--r4-radius);
  border: 1px solid var(--r4-border);
  background: var(--r4-subtle);
  color: var(--r4-text-secondary);
  font-size: 13px;
  cursor: pointer;
}

#tab-gen .plan-quick-template:hover {
  background: var(--r4-pressed);
  color: var(--r4-text-primary);
}

#tab-gen .brief-advanced {
  margin-top: var(--r4-space-16);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  background: var(--r4-subtle);
}

#tab-gen .brief-advanced > summary {
  padding: var(--r4-space-12) var(--r4-space-16);
  font-size: 13px;
  line-height: 18px;
  font-weight: 600;
  color: var(--r4-text-secondary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: var(--r4-space-8);
}

#tab-gen .brief-advanced > summary small {
  font-weight: 400;
  color: var(--r4-text-tertiary);
}

#tab-gen .brief-advanced > summary::-webkit-details-marker {
  display: none;
}

#tab-gen .brief-submit-note {
  font-size: 12px;
  line-height: 16px;
  color: var(--r4-text-tertiary);
  margin-top: var(--r4-space-12);
}

/* Generated output appears only when there is content */
#tab-gen .plan-output-panel {
  display: none;
  margin-top: var(--r4-space-24);
  background: var(--r4-raised);
  border: 1px solid var(--r4-border);
  border-radius: var(--r4-radius);
  min-height: auto;
}

#tab-gen .plan-output-panel:has(#outCnt.active) {
  display: block;
}

/* Feedback button - quiet secondary command */
button.pa-beta-feedback-trigger,
.pa-beta-feedback-trigger {
  right: 18px !important;
  bottom: 18px !important;
  min-height: 36px !important;
  padding: 0 14px !important;
  border-radius: var(--r4-radius) !important;
  background: var(--r4-raised) !important;
  color: var(--r4-text-secondary) !important;
  border: 1px solid var(--r4-border) !important;
  box-shadow: var(--shadow) !important;
  font-size: 12px !important;
  font-weight: 600 !important;
}

button.pa-beta-feedback-trigger:hover,
.pa-beta-feedback-trigger:hover {
  background: var(--r4-pressed) !important;
  color: var(--r4-text-primary) !important;
  border-color: var(--r4-border) !important;
}

button.pa-beta-feedback-trigger svg,
.pa-beta-feedback-trigger svg {
  width: 16px !important;
  height: 16px !important;
  color: var(--r4-text-tertiary) !important;
}

/* Settings stays utilitarian: one page surface with compact, scannable groups. */
#tab-settings .settings-shell {
  max-width: 1180px;
  padding: 24px;
}

#tab-settings .settings-shell > section > .panel {
  background: transparent;
  border: 0;
  box-shadow: none;
}

#tab-settings .settings-shell > section > .panel > .p-head {
  padding: 0 0 16px;
  border: 0;
}

#tab-settings .settings-shell > section > .panel > .p-body {
  padding: 0;
}

#tab-settings .settings-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

#tab-settings .settings-grid > .fg,
#tab-settings .settings-grid > div:not(.fg) {
  min-height: 0;
  margin: 0 !important;
  padding: 16px !important;
  background: var(--r4-surface) !important;
  border: 1px solid var(--r4-border) !important;
  border-radius: var(--r4-radius-lg) !important;
  box-shadow: none !important;
}

#tab-settings .settings-grid > .fg:last-child {
  grid-column: auto;
}

#tab-settings .settings-grid > .fg > label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: var(--r4-text-primary);
  font-size: 13px;
  line-height: 18px;
  font-weight: 650;
}

#tab-settings .settings-grid > .fg > label svg,
#tab-settings .settings-grid .btn svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

#tab-settings .settings-grid details {
  border: 0;
}

#tab-settings .settings-grid summary {
  color: var(--r4-text-secondary);
  font-size: 12px;
  font-weight: 600;
}

#tab-settings .settings-grid input,
#tab-settings .settings-grid select {
  border-radius: var(--r4-radius-md);
}

@media (max-width: 1080px) {
  #tab-settings .settings-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .r4-plan-card {
    grid-template-columns: 96px minmax(180px, 1fr) 130px 44px;
  }

  .r4-plan-card__visual {
    width: 96px;
  }

  .r4-plan-card__metric:nth-child(4),
  .r4-plan-card__progress {
    display: none;
  }

  .tab-cnt {
    padding: var(--r4-space-16);
  }

  .r4-page-header h1 {
    font-size: 26px;
    line-height: 34px;
  }

  #tab-gen .plan-brief-form {
    padding: var(--r4-space-16);
  }
}

@media (max-width: 680px) {
  :root {
    --r4-nav-width: 216px;
  }

  .tab-cnt {
    padding: var(--r4-space-12);
  }

  .r4-page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--r4-space-12);
  }

  .r4-page-header h1 {
    font-size: 24px;
    line-height: 32px;
  }

  #tab-gen .brief-grid--primary {
    grid-template-columns: 1fr;
  }

  .r4-plan-library-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .r4-plan-library-filter {
    justify-content: space-between;
  }

  .r4-plan-card {
    grid-template-columns: 80px minmax(0, 1fr) 40px;
    gap: var(--r4-space-12);
    min-height: 92px;
    padding: var(--r4-space-12) 0;
  }

  .r4-plan-card__visual {
    width: 80px;
  }

  .r4-plan-card__metric,
  .r4-plan-card__progress {
    display: none;
  }

  button.pa-beta-feedback-trigger,
  .pa-beta-feedback-trigger {
    right: 12px !important;
    bottom: 12px !important;
  }

  #tab-settings .settings-shell {
    padding: 12px;
  }

  #tab-settings .settings-grid {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --r4-border: #5A6560;
    --r4-text-secondary: #DDE3DE;
    --r4-text-tertiary: #A8B2AA;
  }
}