/**
 * GTCX Design Studio — asset planner chrome
 * Matches ComplianceOS marketing tokens; not shipped to production routes.
 */

.studio,
.planned-body {
  margin: 0;
  padding: 0;
  background: #f7f7f2;
  color: #191818;
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.studio--split,
.planned-body--split {
  height: 100vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* —— Top chrome —— */

.studio-chrome {
  flex-shrink: 0;
  border-bottom: 1px solid rgba(25, 24, 24, 0.08);
  background: #f7f7f2;
  isolation: isolate;
}

.studio-chrome__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px 20px;
  padding: 10px 20px 6px;
}

.studio-chrome__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
  min-width: 0;
  overflow: visible;
}

.studio-chrome__logo-img {
  display: block;
  height: 26px;
  width: auto;
  max-width: none;
  flex-shrink: 0;
}

.studio-chrome__mode {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: rgba(25, 24, 24, 0.4);
  padding-left: 12px;
  border-left: 1px solid rgba(25, 24, 24, 0.1);
  white-space: nowrap;
}

.studio-chrome__context {
  min-width: 0;
}

.studio-chrome__breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 2px;
  font-size: 12px;
  line-height: 1.2;
}

.studio-chrome__breadcrumb a {
  color: rgba(25, 24, 24, 0.48);
  text-decoration: none;
  font-weight: 500;
}

.studio-chrome__breadcrumb a:hover {
  color: #191818;
}

.studio-chrome__sep {
  color: rgba(25, 24, 24, 0.24);
}

.studio-chrome__current {
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: #191818;
}

.studio-chrome__path {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: rgba(25, 24, 24, 0.4);
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-chrome__route {
  color: rgba(25, 24, 24, 0.56);
  font-weight: 500;
  flex-shrink: 0;
}

.studio-chrome__path-sep,
.studio-preview__sep {
  color: rgba(25, 24, 24, 0.24);
  flex-shrink: 0;
}

.studio-chrome__file {
  color: rgba(25, 24, 24, 0.36);
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-chrome__live {
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 500;
  color: #191818;
  text-decoration: none;
  padding: 8px 0;
  border-bottom: 1px solid rgba(25, 24, 24, 0.2);
  white-space: nowrap;
}

.studio-chrome__live:hover {
  border-bottom-color: #191818;
}

button.studio-chrome__live {
  border: 0;
  background: none;
  cursor: pointer;
  font-family: inherit;
  padding: 8px 0;
}

.studio-chrome__live span {
  margin-left: 4px;
}

.studio-chrome__pages {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0 12px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  border-top: 1px solid rgba(25, 24, 24, 0.06);
  min-height: 37px;
}

.studio-chrome__pages-spacer {
  flex: 1 1 auto;
  min-width: 16px;
}

.studio-chrome__pages::before,
.studio-chrome__pages::after {
  content: "";
  margin: auto;
}

.studio-chrome__pages::-webkit-scrollbar {
  height: 4px;
}

.studio-chrome__pages::-webkit-scrollbar-thumb {
  background: rgba(25, 24, 24, 0.16);
  border-radius: 999px;
}

.studio-chrome__viewport {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  padding: 8px 20px 10px;
  border-top: 1px solid rgba(25, 24, 24, 0.06);
  background: #f7f7f2;
}

.studio-panel-toggles {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px;
  border-radius: 999px;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: rgba(255, 255, 255, 0.72);
}

.studio-panel-toggle {
  border: 0;
  background: transparent;
  color: rgba(25, 24, 24, 0.52);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: 999px;
  cursor: pointer;
}

.studio-panel-toggle:hover {
  color: #191818;
  background: rgba(25, 24, 24, 0.05);
}

.studio-panel-toggle.is-active {
  background: #191818;
  color: #f7f7f2;
}

.studio-nav__link {
  flex-shrink: 0;
  padding: 9px 12px 7px;
  border-radius: 0;
  font-size: 11px;
  font-weight: 500;
  color: rgba(25, 24, 24, 0.52);
  text-decoration: none;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
  line-height: 1;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.studio-nav__link:hover {
  color: #191818;
}

.studio-nav__link.is-active {
  color: #191818;
  font-weight: 600;
  background: transparent;
  border-bottom-color: #191818;
}

.studio-nav__link--live {
  align-self: center;
  margin: 4px 4px 4px 0;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(25, 24, 24, 0.14);
  background: #191818;
  color: #f7f7f2;
  font-size: 11px;
  font-weight: 600;
  border-bottom: 1px solid rgba(25, 24, 24, 0.14);
  margin-bottom: 0;
}

.studio-nav__link--live:hover {
  color: #f7f7f2;
  background: #2a2827;
}

.studio-nav__link--live span {
  margin-left: 4px;
}

/* Legacy chrome — hide */
.studio-chrome__logo,
.studio-chrome__page,
.studio-chrome__actions,
.studio-select {
  display: none;
}

.studio-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid rgba(25, 24, 24, 0.14);
  background: #191818;
  color: #f7f7f2;
  cursor: pointer;
  font-family: inherit;
}

.studio-btn:hover {
  background: #2a2827;
}

.studio-btn--ghost {
  background: transparent;
  color: #191818;
}

.studio-btn--ghost:hover {
  background: rgba(25, 24, 24, 0.05);
}

.studio-btn--sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* —— Split layout —— */

.studio-split,
.planned-split {
  flex: 1;
  display: grid;
  --studio-assets-col: minmax(220px, 18%);
  --studio-rail-col: minmax(240px, 20%);
  grid-template-columns: var(--studio-assets-col) minmax(0, 1fr) var(--studio-rail-col);
  min-height: 0;
}

.studio-split.is-assets-collapsed {
  --studio-assets-col: 40px;
}

.studio-split.is-rail-collapsed {
  --studio-rail-col: 40px;
}

.studio-split--focus-preview {
  grid-template-columns: minmax(0, 1fr);
}

.studio-split--focus-preview .studio-assets,
.studio-split--focus-preview .studio-rail {
  display: none;
}

.studio-split--show-assets.studio-split--focus-preview {
  grid-template-columns: minmax(220px, 18%) minmax(0, 1fr);
}

.studio-split--show-assets.studio-split--focus-preview .studio-assets {
  display: flex;
}

.studio-split--show-rail.studio-split--focus-preview {
  grid-template-columns: minmax(0, 1fr) minmax(240px, 20%);
}

.studio-split--show-rail.studio-split--focus-preview .studio-rail {
  display: flex;
}

.studio-split--show-assets.studio-split--show-rail.studio-split--focus-preview {
  grid-template-columns: minmax(220px, 18%) minmax(0, 1fr) minmax(240px, 20%);
}

.studio-split--show-assets.studio-split--show-rail.studio-split--focus-preview .studio-assets,
.studio-split--show-assets.studio-split--show-rail.studio-split--focus-preview .studio-rail {
  display: flex;
}

.studio-split > * {
  min-height: 0;
}

/* —— Collapsible side panels —— */

.studio-side__expandable {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.studio-side__collapsed {
  display: none;
  flex-direction: column;
  align-items: center;
  height: 100%;
  padding: 10px 0;
  gap: 10px;
}

.studio-side__collapsed-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: rgba(25, 24, 24, 0.48);
  cursor: pointer;
  padding: 0;
  transition: background 0.12s ease, color 0.12s ease;
}

.studio-side__collapsed-btn:hover {
  background: rgba(25, 24, 24, 0.06);
  color: #191818;
}

.studio-side__collapsed-label {
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(25, 24, 24, 0.4);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  user-select: none;
}

.studio-split.is-assets-collapsed .studio-assets .studio-side__expandable,
.studio-split.is-rail-collapsed .studio-rail .studio-side__expandable {
  display: none;
}

.studio-split.is-assets-collapsed .studio-assets .studio-side__collapsed,
.studio-split.is-rail-collapsed .studio-rail .studio-side__collapsed {
  display: flex;
}

.studio-split.is-assets-collapsed .studio-assets,
.studio-split.is-rail-collapsed .studio-rail {
  overflow: hidden;
}

/* —— Left assets panel —— */

.studio-assets {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  background: #f7f7f2;
  border-right: 1px solid rgba(25, 24, 24, 0.08);
}

.studio-assets__head {
  flex-shrink: 0;
  background: #f7f7f2;
  border-bottom: 1px solid rgba(25, 24, 24, 0.08);
}

.studio-assets__scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  scrollbar-width: thin;
}

.studio-assets__list {
  padding: 6px 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.studio-assets__empty {
  margin: 16px 12px;
  padding: 14px 12px;
  font-size: 12px;
  color: rgba(25, 24, 24, 0.52);
  line-height: 1.5;
  border-radius: 10px;
  border: 1px dashed rgba(25, 24, 24, 0.12);
  background: rgba(255, 255, 255, 0.55);
}

.studio-asset {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 5px 6px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.studio-asset:hover {
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(25, 24, 24, 0.08);
}

.studio-asset[hidden] {
  display: none;
}

.studio-asset__lead {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.studio-asset__thumb {
  width: 36px;
  height: 36px;
  object-fit: cover;
  display: block;
  border-radius: 4px;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: #ebebe6;
}

.studio-asset__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 4px;
  border: 1px solid rgba(25, 24, 24, 0.08);
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: rgba(25, 24, 24, 0.52);
  background: #fff;
}

.studio-asset__badge--graphic {
  color: #5a4a8a;
  background: rgba(90, 74, 138, 0.08);
  border-color: rgba(90, 74, 138, 0.14);
}

.studio-asset__badge--photo {
  color: #1a6b42;
  background: rgba(42, 216, 127, 0.1);
  border-color: rgba(26, 107, 66, 0.14);
}

.studio-asset__badge--video {
  color: #c56a21;
  background: rgba(197, 106, 33, 0.1);
  border-color: rgba(197, 106, 33, 0.16);
}

.studio-asset__body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.studio-asset__name {
  font-size: 11px;
  font-weight: 500;
  line-height: 1.3;
  color: #191818;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-asset__section {
  font-size: 10px;
  color: rgba(25, 24, 24, 0.44);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-asset__kind {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  color: rgba(25, 24, 24, 0.36);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-preview,
.planned-split__live {
  display: flex;
  flex-direction: column;
  min-height: 0;
  padding: 12px 14px;
  background: #ebebe6;
}

.studio-preview__viewport {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: stretch;
  min-height: 0;
  overflow: auto;
  scrollbar-width: thin;
}

.studio-preview__viewport[data-breakpoint="mobile"] .studio-preview__frame-wrap {
  width: 390px;
  max-width: 100%;
  flex: 0 0 auto;
}

.studio-preview__viewport[data-breakpoint="tablet"] .studio-preview__frame-wrap {
  width: 768px;
  max-width: 100%;
  flex: 0 0 auto;
}

.studio-preview__viewport[data-breakpoint="laptop"] .studio-preview__frame-wrap {
  width: 1024px;
  max-width: 100%;
  flex: 0 0 auto;
}

.studio-preview__viewport[data-breakpoint="desktop"] .studio-preview__frame-wrap {
  width: 100%;
  max-width: none;
  flex: 1 1 auto;
}

.studio-breakpoints {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 2px;
  border-radius: 6px;
  background: rgba(25, 24, 24, 0.05);
  flex-shrink: 0;
}

.studio-breakpoint {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 26px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: rgba(25, 24, 24, 0.44);
  cursor: pointer;
  padding: 0;
  transition: background 0.12s ease, color 0.12s ease;
}

.studio-breakpoint:hover {
  color: #191818;
  background: rgba(255, 255, 255, 0.6);
}

.studio-breakpoint.is-active {
  background: #fff;
  color: #191818;
  box-shadow: 0 1px 3px rgba(8, 8, 12, 0.08);
}

.studio-preview__frame-wrap {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  width: 100%;
  flex: 1 1 auto;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(25, 24, 24, 0.1);
  box-shadow: 0 16px 48px rgba(8, 8, 12, 0.08);
  background: #fff;
  transition: width 0.2s ease, flex-basis 0.2s ease;
}

.studio-preview__bar,
.planned-split__live-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: #f7f7f2;
  border-bottom: 1px solid rgba(25, 24, 24, 0.06);
  flex-shrink: 0;
}

.studio-preview__dots {
  display: flex;
  gap: 6px;
}

.studio-preview__dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(25, 24, 24, 0.12);
}

.studio-preview__url,
.planned-split__label {
  flex: 1;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  color: rgba(25, 24, 24, 0.52);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-preview__file {
  color: rgba(25, 24, 24, 0.32);
}

.studio-preview__reload {
  flex-shrink: 0;
  font-size: 12px;
  padding: 4px 0;
}

.studio-preview__frame,
.planned-split__frame {
  flex: 1;
  width: 100%;
  border: 0;
  background: #f7f7f2;
}

/* —— Right rail (sections panel) —— */

.studio-rail,
.planned-split__sections {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
  background: #f7f7f2;
  border-left: 1px solid rgba(25, 24, 24, 0.08);
}

.studio-rail__scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(25, 24, 24, 0.2) transparent;
}

.studio-rail__scroll::-webkit-scrollbar {
  width: 6px;
}

.studio-rail__scroll::-webkit-scrollbar-thumb {
  background: rgba(25, 24, 24, 0.18);
  border-radius: 999px;
}

.studio-rail__head {
  flex-shrink: 0;
  background: #f7f7f2;
  border-bottom: 1px solid rgba(25, 24, 24, 0.08);
}

.studio-rail__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px 0;
  min-height: 32px;
}

.studio-rail__bar-start {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.studio-rail__bar-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.studio-rail__label,
.studio-rail__head h2 {
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(25, 24, 24, 0.72);
  margin: 0;
  white-space: nowrap;
}

.studio-rail__meta {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: rgba(25, 24, 24, 0.36);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-rail__meta strong {
  color: #1a6b42;
  font-weight: 600;
}

.studio-rail__icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: rgba(25, 24, 24, 0.44);
  cursor: pointer;
  padding: 0;
  transition: background 0.12s ease, color 0.12s ease;
}

.studio-rail__icon-btn:hover {
  background: rgba(25, 24, 24, 0.06);
  color: #191818;
}

.studio-rail__tabstrip {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0 8px;
  overflow-x: auto;
  scrollbar-width: none;
  border-bottom: 1px solid rgba(25, 24, 24, 0.06);
}

.studio-rail__tabstrip::-webkit-scrollbar {
  display: none;
}

.studio-rail__tab {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 0;
  background: transparent;
  font-family: "IBM Plex Sans Variable", Arial, sans-serif;
  font-size: 11px;
  font-weight: 500;
  color: rgba(25, 24, 24, 0.48);
  padding: 9px 10px 7px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  line-height: 1;
  transition: color 0.12s ease, border-color 0.12s ease;
}

.studio-rail__tab:hover {
  color: #191818;
}

.studio-rail__tab.is-active {
  color: #191818;
  font-weight: 600;
  border-bottom-color: #191818;
}

.studio-rail__tab-count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  color: rgba(25, 24, 24, 0.32);
}

.studio-rail__tab.is-active .studio-rail__tab-count {
  color: rgba(25, 24, 24, 0.44);
}

.studio-rail__tabsep {
  flex-shrink: 0;
  width: 1px;
  align-self: center;
  height: 14px;
  margin: 0 2px;
  background: rgba(25, 24, 24, 0.1);
}

/* Legacy chip aliases */
.studio-rail__toolbar,
.studio-rail__toolbar-start,
.studio-rail__toolbar-end,
.studio-rail__menus,
.studio-rail__menu,
.studio-rail__stat,
.studio-rail__tool {
  display: none;
}

/* Legacy chip ? tab alias for fleet stubs */
.studio-rail__chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: 0;
  background: transparent;
  font-family: "IBM Plex Sans Variable", Arial, sans-serif;
  font-size: 11px;
  font-weight: 500;
  color: rgba(25, 24, 24, 0.48);
  padding: 9px 10px 7px;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.studio-rail__chip.is-active {
  color: #191818;
  font-weight: 600;
  border-bottom-color: #191818;
}

/* Legacy tab aliases (fleet stubs) */
.studio-rail__head-top {
  display: none;
}

.studio-rail__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
}

.studio-rail__tab {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: rgba(255, 255, 255, 0.72);
  font-family: "IBM Plex Sans Variable", Arial, sans-serif;
  font-size: 10px;
  font-weight: 500;
  color: rgba(25, 24, 24, 0.56);
  padding: 3px 7px;
  border-radius: 5px;
  cursor: pointer;
}

.studio-rail__tab span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  opacity: 1;
  margin-left: 0;
}

.studio-rail__tab.is-active {
  background: #191818;
  border-color: #191818;
  color: #f7f7f2;
  box-shadow: none;
}

.studio-rail__tab:hover {
  border-color: rgba(25, 24, 24, 0.14);
  color: #191818;
}

.studio-rail__progress {
  display: none;
}

.studio-rail__nav {
  flex-shrink: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: stretch;
  gap: 6px;
  padding: 8px 10px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  border-bottom: 1px solid rgba(25, 24, 24, 0.06);
  background: rgba(255, 255, 255, 0.72);
  position: sticky;
  top: 0;
  z-index: 2;
}

.studio-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: 0 0 auto;
  max-width: 220px;
  padding: 7px 11px;
  border-radius: 8px;
  border: 1px solid rgba(25, 24, 24, 0.07);
  background: #fff;
  text-decoration: none;
  color: #191818;
  font-size: 12px;
  line-height: 1.25;
  transition: background 0.12s ease, border-color 0.12s ease;
}

.studio-rail__link:hover {
  background: rgba(25, 24, 24, 0.04);
  border-color: rgba(25, 24, 24, 0.12);
}

/* Active section: full fill + ring (never one-sided left inset) */
.studio-rail__link.is-active,
.studio-rail__link.is-current {
  background: #191818;
  border-color: #191818;
  color: #f7f7f2;
  box-shadow: 0 0 0 1px #191818;
}

.studio-rail__link.is-active .studio-rail__num,
.studio-rail__link.is-current .studio-rail__num {
  color: rgba(247, 247, 242, 0.55);
}

.studio-rail__num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: rgba(25, 24, 24, 0.4);
}

.studio-rail__link-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}

.studio-rail__dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  justify-self: end;
}

.studio-rail__dot--done {
  background: #2ad87f;
}

.studio-rail__dot--planned {
  background: #c56a21;
}

.studio-rail__dot--keep,
.studio-rail__dot--copy-only {
  background: rgba(25, 24, 24, 0.24);
}

.studio-rail__link[hidden] {
  display: none;
}


.studio-rail__list {
  flex: none;
  overflow: visible;
  padding: 8px 10px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* —— Accordion panels —— */

.studio-panel {
  border-radius: 10px;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: #fff;
  overflow: hidden;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.studio-panel[open] {
  border-color: rgba(25, 24, 24, 0.14);
  box-shadow: 0 8px 24px rgba(8, 8, 12, 0.06);
}

.studio-panel[hidden] {
  display: none;
}

.studio-panel__summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.studio-panel__heading {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
}

.studio-panel__title {
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: #191818;
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.studio-panel__sub {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  min-width: 0;
}

.studio-panel__badge {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: 4px;
  line-height: 1.2;
}

.studio-panel__badge--planned {
  background: color-mix(in srgb, #c56a21 10%, #fff);
  color: #8a4d18;
}

.studio-panel__badge--done {
  background: color-mix(in srgb, #2ad87f 12%, #fff);
  color: #1a6b42;
}

.studio-panel__badge--keep,
.studio-panel__badge--copy-only {
  background: rgba(25, 24, 24, 0.05);
  color: rgba(25, 24, 24, 0.52);
}

.studio-panel__badge--remove {
  background: color-mix(in srgb, #c94040 10%, #fff);
  color: #9a3030;
}

.studio-panel__flags {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  color: rgba(25, 24, 24, 0.36);
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.studio-panel__summary::-webkit-details-marker {
  display: none;
}

.studio-panel__summary::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 1.5px solid rgba(25, 24, 24, 0.36);
  border-bottom: 1.5px solid rgba(25, 24, 24, 0.36);
  transform: rotate(45deg);
  transition: transform 0.15s ease;
  flex-shrink: 0;
  margin-left: auto;
}

.studio-panel[open] .studio-panel__summary::after {
  transform: rotate(-135deg) translate(-1px, 1px);
}

.studio-panel__num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: rgba(25, 24, 24, 0.36);
  flex-shrink: 0;
}

.studio-panel__status {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  flex-shrink: 0;
}

.studio-panel__status--done {
  background: #2ad87f;
}

.studio-panel__status--planned {
  background: #c56a21;
}

.studio-panel__status--keep,
.studio-panel__status--copy-only {
  background: rgba(25, 24, 24, 0.2);
}

.studio-panel__status--remove {
  background: #c94040;
}

.studio-panel__body {
  padding: 0;
  border-top: 1px solid rgba(25, 24, 24, 0.06);
}

.studio-panel__note,
.studio-panel__note--brief,
.studio-panel__tags,
.studio-panel__kind {
  display: none;
}

.studio-panel__preview {
  display: none;
}

.studio-panel--mock .studio-panel__preview {
  display: block;
  margin: 8px 6px 10px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: #fff;
}

.studio-panel--mock .studio-panel__preview img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 140px;
  object-fit: cover;
}

.studio-assets__empty {
  margin: 16px 12px;
  padding: 14px 12px;
  border-radius: 10px;
  border: 1px dashed rgba(25, 24, 24, 0.14);
  background: rgba(25, 24, 24, 0.02);
  font-size: 12px;
  line-height: 1.45;
  color: rgba(25, 24, 24, 0.55);
}

.studio-assets__empty-title {
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 600;
  color: rgba(25, 24, 24, 0.72);
}

.studio-assets__empty p {
  margin: 0;
}

.studio-assets__empty code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
}

.studio-editor-hint {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.02em;
  color: rgba(25, 24, 24, 0.38);
  padding: 0 10px 8px;
}

/* —— Content doc (HTML-like editable fields) —— */

.studio-doc {
  overflow: visible;
  max-height: none;
  border: 0;
  border-radius: 0;
  background: #fafaf8;
}

.studio-field-group {
  border-bottom: 1px solid rgba(25, 24, 24, 0.04);
}

.studio-field-group__head {
  display: none;
}

.studio-field {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 5px;
  align-items: center;
  padding: 2px 6px;
  min-height: 26px;
  border-bottom: 1px solid rgba(25, 24, 24, 0.03);
}

.studio-field:last-child {
  border-bottom: 0;
}

.studio-field--kv {
  grid-template-columns: 26px minmax(0, 1fr) minmax(48px, 0.34fr);
  gap: 4px 5px;
}

.studio-field--pair {
  grid-template-columns: 26px minmax(0, 1fr) minmax(48px, 0.34fr);
  gap: 4px 5px;
}

.studio-field--media {
  background: rgba(25, 24, 24, 0.015);
}

.studio-field--brief {
  background: rgba(197, 106, 33, 0.05);
}

.studio-field--brief .studio-field__role {
  color: #8a4d18;
}

.studio-field--action {
  background: rgba(25, 24, 24, 0.02);
}

.studio-field__role {
  font-family: "IBM Plex Mono", monospace;
  font-size: 8px;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  color: rgba(25, 24, 24, 0.32);
  text-align: right;
  line-height: 1;
  user-select: none;
}

.studio-field[data-content-role="h2"] .studio-field__value {
  font-weight: 600;
  font-size: 12px;
}

.studio-field[data-content-role="h3"] .studio-field__value {
  font-weight: 600;
  font-size: 11px;
}

.studio-field[data-content-role="p"] .studio-field__value,
.studio-field[data-content-role="li"] .studio-field__value {
  font-size: 11px;
}

.studio-field__value {
  font-family: "IBM Plex Sans Variable", "IBM Plex Sans", Arial, sans-serif;
  font-size: 11px;
  line-height: 1.35;
  min-height: 22px;
  padding: 3px 6px;
  border-radius: 4px;
  outline: none;
  color: #191818;
  word-break: break-word;
  cursor: text;
  border: 1px solid rgba(25, 24, 24, 0.1);
  background: #fff;
  transition: border-color 0.1s ease, box-shadow 0.1s ease, background 0.1s ease;
}

.studio-field__value--short {
  font-size: 10px;
  text-align: right;
  font-family: "IBM Plex Mono", monospace;
}

.studio-field__value--mono {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  color: rgba(25, 24, 24, 0.64);
}

.studio-field:hover .studio-field__value {
  border-color: rgba(25, 24, 24, 0.18);
}

.studio-field__value:empty::before {
  content: attr(data-placeholder);
  color: rgba(25, 24, 24, 0.28);
  font-style: italic;
  pointer-events: none;
}

.studio-field__value:focus {
  background: #fff;
  border-color: rgba(42, 216, 127, 0.55);
  box-shadow: 0 0 0 2px rgba(42, 216, 127, 0.14);
}

.studio-field__value.is-dirty {
  border-color: rgba(197, 106, 33, 0.35);
  background: color-mix(in srgb, #c56a21 4%, #fff);
}

.studio-field.is-editing .studio-field__role {
  color: #1a6b42;
}

.studio-doc__saved {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  color: #1a6b42;
  padding: 4px 10px 6px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.studio-doc__saved.is-visible {
  opacity: 1;
}

.studio-panel__kind {
  margin: 12px 0 6px;
  font-size: 12px;
  color: rgba(25, 24, 24, 0.44);
}

.studio-panel__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.studio-panel__preview {
  display: none;
}

/* Show simple photo previews in the editor rail; keep ComplianceOS slot vignettes hidden here */
.studio-panel--mock .studio-panel__preview:has(> img) {
  display: block;
  margin: 8px 6px 10px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: #fff;
}

.studio-panel--mock .studio-panel__preview:has(> img) img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 140px;
  object-fit: cover;
}

.studio-panel--mock .slot-preview,
.studio-panel--mock .image-wrap-system--vignette {
  display: none;
}

.studio-panel--task .studio-panel__body {
  padding-bottom: 16px;
}

.studio-panel--task[open] {
  background: rgba(25, 24, 24, 0.02);
  box-shadow: none;
}

/* Legacy — keep for compat */
.studio-rail__intro,
.planned-split__sections-head {
  display: none;
}

.studio-rail__list .studio-rail__intro {
  display: block;
  margin: 16px 10px;
  padding: 14px 12px;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(25, 24, 24, 0.52);
  border-radius: 10px;
  border: 1px dashed rgba(25, 24, 24, 0.12);
  background: rgba(255, 255, 255, 0.55);
}

.studio-rail__stack,
.planned-sections-stack {
  display: contents;
}

.studio-slot {
  display: none;
}

/* Legacy slot-card mapping */
.slot-card {
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(25, 24, 24, 0.08);
  box-shadow: 0 2px 12px rgba(8, 8, 12, 0.04);
}

.slot-card__meta {
  padding: 18px 18px 14px;
}

.slot-card__index {
  display: none;
}

.slot-card__meta h3 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 1.1rem;
  margin: 0 0 8px;
}

.slot-card__beat {
  font-size: 14px;
  color: rgba(25, 24, 24, 0.6);
  margin: 0 0 12px;
}

.section-row {
  padding: 16px 18px;
  border-radius: 14px;
  background: rgba(25, 24, 24, 0.02);
  border: 1px solid rgba(25, 24, 24, 0.06);
}

.section-row__index {
  display: none;
}

.section-row__title {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 1rem;
  margin: 0 0 4px;
}

.section-row__action {
  font-size: 12px;
  color: rgba(25, 24, 24, 0.44);
  margin-bottom: 4px;
}

.section-row__beat {
  font-size: 13px;
  color: rgba(25, 24, 24, 0.56);
}

/* —— Pills —— */

.studio-pill,
.slot-tag {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: capitalize;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(25, 24, 24, 0.1);
  background: #fff;
}

.studio-pill--done,
.slot-tag--done {
  background: color-mix(in srgb, #2ad87f 12%, #fff);
  border-color: color-mix(in srgb, #2ad87f 30%, transparent);
  color: #1a6b42;
}

.studio-pill--planned,
.slot-tag--planned {
  background: color-mix(in srgb, #c56a21 8%, #fff);
  border-color: color-mix(in srgb, #c56a21 28%, transparent);
  color: #8a4d18;
}

.slot-tag--keep,
.slot-tag--copy-only,
.slot-tag--photo {
  background: rgba(25, 24, 24, 0.03);
  color: rgba(25, 24, 24, 0.56);
}

/* —— Mock previews —— */

.slot-preview {
  position: relative;
  background: #ebebe6;
  display: flex;
  align-items: stretch;
  justify-content: stretch;
}

.studio-panel__preview .slot-preview {
  min-height: 140px;
}

.studio-panel__preview .slot-card--lg .slot-preview--contain,
.studio-panel__preview .slot-preview--lg {
  min-height: 160px;
}

.studio-panel__preview .slot-card--lg .image-wrap-system--vignette,
.studio-panel__preview .slot-preview--contain .image-wrap-system--vignette {
  min-height: 140px;
}

.studio-panel__preview .slot-preview--marquee {
  min-height: 140px;
  aspect-ratio: 16 / 10;
}


.slot-preview--photo {
  min-height: 200px;
  background-size: cover;
  background-position: center;
}

.slot-preview--photo .slot-preview__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: flex-start;
  padding: 16px;
  pointer-events: none;
}

.slot-preview--contain {
  padding: 14px;
}

.slot-card--lg .slot-preview--contain {
  min-height: 200px;
}

.slot-card--lg .image-wrap-system--vignette {
  min-height: 170px;
  aspect-ratio: 4 / 3;
}

.slot-preview--marquee {
  min-height: 180px;
  aspect-ratio: 4 / 3;
}

.slot-preview__note {
  position: absolute;
  bottom: 10px;
  right: 10px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.04em;
  padding: 4px 8px;
  border-radius: 6px;
  background: rgba(247, 247, 242, 0.92);
  border: 1px solid rgba(25, 24, 24, 0.08);
  color: rgba(25, 24, 24, 0.56);
}

/* —— Hub —— */

.studio-hub {
  min-height: 100vh;
}

.studio-hub__hero {
  padding: 48px 40px 32px;
  max-width: 720px;
}

.studio-hub__hero h1 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}

.studio-hub__hero p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.55;
  color: rgba(25, 24, 24, 0.64);
}

.studio-hub__main,
.planned-main {
  padding: 0 40px 80px;
  max-width: 1200px;
}

.studio-grid,
.planned-page-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.studio-page,
.planned-page-card {
  display: block;
  padding: 22px 22px 20px;
  border-radius: 14px;
  border: 1px solid rgba(25, 24, 24, 0.08);
  background: #fff;
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.studio-page:hover,
.planned-page-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(8, 8, 12, 0.08);
  border-color: rgba(25, 24, 24, 0.14);
}

.studio-page__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.studio-page__arrow {
  flex-shrink: 0;
  font-size: 14px;
  color: rgba(25, 24, 24, 0.24);
  transition: transform 0.15s ease, color 0.15s ease;
}

.studio-page:hover .studio-page__arrow {
  transform: translateX(3px);
  color: #191818;
}

.studio-page h2,
.planned-page-card h2 {
  font-family: "IBM Plex Serif", Georgia, serif;
  font-size: 1.2rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.studio-page__route,
.planned-page-card__route {
  margin: 0 0 14px;
  font-size: 12px;
  color: rgba(25, 24, 24, 0.44);
}

.studio-page__meta,
.planned-page-card__counts {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.count--review {
  background: color-mix(in srgb, #2ad87f 12%, #f7f7f2);
  color: #1a6b42;
}

.count--task {
  background: rgba(25, 24, 24, 0.05);
  color: rgba(25, 24, 24, 0.56);
}

.count {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
}

@media (max-width: 1100px) {
  .studio-split,
  .planned-split {
    grid-template-columns: 1fr;
    grid-template-rows: auto 50vh auto auto;
    --studio-assets-col: auto;
    --studio-rail-col: auto;
  }

  .studio-split.is-assets-collapsed .studio-assets .studio-side__expandable,
  .studio-split.is-rail-collapsed .studio-rail .studio-side__expandable {
    display: flex;
  }

  .studio-split.is-assets-collapsed .studio-assets .studio-side__collapsed,
  .studio-split.is-rail-collapsed .studio-rail .studio-side__collapsed {
    display: none;
  }

  .studio-assets {
    border-right: 0;
    border-bottom: 1px solid rgba(25, 24, 24, 0.08);
    max-height: 220px;
  }

  .studio-preview,
  .planned-split__live {
    padding: 12px;
  }

  .studio-rail,
  .planned-split__sections {
    border-left: 0;
    border-top: 1px solid rgba(25, 24, 24, 0.08);
    height: auto;
    max-height: 55vh;
  }

  .studio-rail__scroll {
    max-height: 55vh;
  }

  .studio--split,
  .planned-body--split {
    height: auto;
    overflow: auto;
  }

  .studio-grid,
  .planned-page-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .studio-chrome__row {
    grid-template-columns: 1fr auto;
    padding: 10px 16px 6px;
    gap: 10px 12px;
  }

  .studio-chrome__brand {
    grid-column: 1;
  }

  .studio-chrome__live {
    grid-column: 2;
    grid-row: 1;
  }

  .studio-chrome__context {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .studio-chrome__pages {
    padding: 0 12px;
  }
}

@media (max-width: 700px) {
  .studio-grid,
  .planned-page-list {
    grid-template-columns: 1fr;
  }

  .studio-hub__hero,
  .studio-hub__main,
  .planned-main {
    padding-left: 20px;
    padding-right: 20px;
  }
}