/* coss-core.css — split from coss-site-components.css; do not edit aggregator directly */

/* Shared root-site component layer
   COSS-inspired semantics, preserved Madhuri brand styling. */

.coss-button {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: var(--s-2) var(--s-4);
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  line-height: 20px;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition:
    background var(--dur-base) var(--ease),
    border-color var(--dur-base) var(--ease),
    color var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease);
}

.coss-button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.coss-button--default {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-foreground);
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, var(--primary-foreground) 22%, transparent),
    var(--shadow-xs);
}

.coss-button--default:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--primary-foreground);
  box-shadow:
    inset 0 1px 0 color-mix(in oklab, var(--primary-foreground) 18%, transparent),
    var(--shadow-xs);
}

.coss-button--ghost {
  background: transparent;
  color: var(--primary);
}

.coss-button--ghost:hover {
  background: var(--muted);
  color: var(--primary);
}

.coss-button--outline {
  background: transparent;
  border-color: var(--input);
  color: var(--primary);
}

.coss-button--outline:hover {
  background: var(--muted);
  border-color: var(--border-strong);
  color: var(--primary);
}

.coss-button--sm {
  min-height: 32px;
  padding: 6px 10px;
  font-size: var(--fs-xs);
}

.coss-button--with-icon .ph {
  font-size: var(--fs-base);
  line-height: 1;
  transition: transform var(--dur-base) var(--ease);
}

.coss-button--with-icon:hover .ph {
  transform: translateX(2px);
}

/* COSS Select — trigger + listbox popup (vanilla) */
.coss-select {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
  min-width: 0;
}

.coss-select__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  min-width: 0;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--foreground);
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 18px;
  text-align: left;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition:
    border-color var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease),
    background var(--dur-base) var(--ease);
}

.coss-select__trigger:hover {
  border-color: color-mix(in oklab, var(--border) 55%, var(--foreground));
  background: color-mix(in oklab, var(--card) 92%, var(--secondary));
}

.coss-select__trigger:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.coss-select.is-open .coss-select__trigger {
  border-color: color-mix(in oklab, var(--grass-8) 45%, var(--border));
  box-shadow:
    0 0 0 1px color-mix(in oklab, var(--grass-8) 28%, transparent),
    var(--shadow-xs);
}

.coss-select__value {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.coss-select__chevron {
  flex: none;
  font-size: var(--fs-md-sm);
  line-height: 1;
  color: var(--muted-foreground);
  transition: transform var(--dur-base) var(--ease);
}

.coss-select.is-open .coss-select__chevron {
  transform: rotate(180deg);
}

.coss-select__popup {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-height: min(280px, 50dvh);
  margin: 0;
  padding: 4px;
  overflow-y: auto;
  overscroll-behavior: contain;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--popover);
  color: var(--popover-foreground);
  box-shadow: var(--shadow-md);
}

.coss-select__popup[hidden] {
  display: none;
}

.coss-select__option {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  min-height: 36px;
  padding: 8px 10px;
  border: 0;
  border-radius: calc(var(--radius-sm) - 2px);
  background: transparent;
  color: var(--foreground);
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
  transition:
    background var(--dur-fast) var(--ease),
    color var(--dur-fast) var(--ease);
}

.coss-select__option:hover,
.coss-select__option:focus-visible {
  background: var(--muted);
  color: var(--foreground);
  outline: none;
}

.coss-select__option[aria-selected="true"] {
  background: color-mix(in oklab, var(--secondary) 72%, var(--card));
  color: var(--foreground);
  font-weight: 600;
}

.coss-select__option:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: -2px;
}

.coss-preview-card-trigger {
  color: var(--foreground);
  text-decoration-color: color-mix(in oklab, var(--foreground) 58%, transparent);
  transition:
    color var(--dur-base) var(--ease),
    text-decoration-color var(--dur-base) var(--ease);
}

.coss-preview-card-trigger:hover,
.coss-preview-card-trigger:focus-visible,
.coss-preview-card-trigger[aria-expanded="true"] {
  color: var(--primary);
  text-decoration-color: var(--primary);
}

.coss-preview-card-trigger:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 3px;
}

.coss-preview-card {
  position: fixed;
  z-index: 300;
  width: min(280px, calc(100vw - 24px));
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--popover);
  color: var(--popover-foreground);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(-2px);
  pointer-events: none;
  transition:
    opacity var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease);
}

.coss-preview-card--games {
  width: min(360px, calc(100vw - 24px));
}

.coss-preview-card--tiles {
  width: min(340px, calc(100vw - 24px));
}

.coss-preview-card--radar {
  width: min(340px, calc(100vw - 24px));
  overflow: hidden;
  border-color: color-mix(in oklab, var(--grass-8) 28%, var(--border));
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 255, 255, 0.86) 42%, rgba(255, 255, 255, 0.6) 100%),
    radial-gradient(circle at 24% 84%, color-mix(in oklab, var(--yellow-9) 29%, transparent) 0 30%, transparent 62%),
    radial-gradient(circle at 48% 78%, color-mix(in oklab, var(--accent-orange) 19%, transparent) 0 22%, transparent 56%),
    radial-gradient(circle at 70% 70%, color-mix(in oklab, var(--skill-system-design) 17%, transparent) 0 28%, transparent 62%),
    radial-gradient(circle at 92% 92%, color-mix(in oklab, var(--lime-9) 21%, transparent) 0 34%, transparent 70%),
    var(--popover);
}

.coss-preview-card--radar::before,
.coss-preview-card--radar::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

.coss-preview-card--radar::before {
  background:
    radial-gradient(circle at 44% 48%, rgba(255, 255, 255, 0.88) 0 20%, transparent 42%),
    radial-gradient(circle at 28% 26%, color-mix(in oklab, var(--accent-pink) 8%, transparent) 0 20%, transparent 52%),
    radial-gradient(circle at 84% 30%, color-mix(in oklab, var(--grass-8) 10%, transparent) 0 22%, transparent 54%);
}

.coss-preview-card--radar::after {
  opacity: 0.28;
  background-image:
    linear-gradient(color-mix(in oklab, var(--grass-11) 24%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--grass-11) 24%, transparent) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, transparent 0%, black 34%, black 100%);
}

.coss-preview-card--radar .coss-preview-card__content {
  position: relative;
  z-index: 1;
}

.coss-preview-card.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.coss-preview-card[hidden] {
  display: none;
}

.coss-preview-card__content {
  display: grid;
  gap: 5px;
}

.coss-preview-card__title,
.coss-preview-card__blurb {
  margin: 0;
}

.coss-preview-card__title {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  line-height: 18px;
  font-weight: 600;
  color: var(--foreground);
}

.coss-preview-card__blurb {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  line-height: 19px;
  color: var(--muted-foreground);
}

.coss-preview-card__games {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 7px;
}

.coss-preview-card__game {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  min-width: 0;
  padding: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.coss-preview-card__game-image {
  width: 42px;
  height: 56px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--muted);
}

.coss-preview-card__game-title {
  min-width: 0;
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  line-height: 15px;
  font-weight: 600;
  color: var(--foreground);
}

.coss-preview-card__tiles {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 7px;
}

.coss-preview-card__tile {
  min-width: 0;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--card);
}

.coss-preview-card__tile-title {
  margin: 0 0 3px;
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  line-height: 15px;
  font-weight: 700;
  color: var(--foreground);
}

.coss-preview-card__tile-copy {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  line-height: 16px;
  color: var(--muted-foreground);
}

.coss-preview-card__radar {
  margin-top: 6px;
  padding: 4px 0 0;
}

.coss-preview-card__radar-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.coss-preview-card__radar-grid {
  fill: none;
  stroke: color-mix(in oklab, var(--grass-11) 28%, var(--border));
  stroke-width: 1;
}

.coss-preview-card__radar-axis {
  stroke: color-mix(in oklab, var(--grass-11) 22%, transparent);
  stroke-width: 1;
}

.coss-preview-card__radar-data {
  fill: color-mix(in oklab, var(--grass-9) 28%, transparent);
  stroke: var(--grass-11);
  stroke-width: 2.2;
  stroke-linejoin: round;
}

.coss-preview-card__radar-dot {
  fill: var(--accent-pink);
  stroke: var(--popover);
  stroke-width: 1.5;
}

.coss-preview-card__radar-label {
  fill: color-mix(in oklab, var(--foreground) 78%, var(--grass-11));
  font-family: var(--font-label);
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0;
  dominant-baseline: middle;
}

@media (max-width: 420px) {
  .coss-preview-card__games,
  .coss-preview-card__tiles {
    grid-template-columns: 1fr;
  }
}

.coss-footer-band {
  --coss-footer-band-bg: var(--footer-band-bg);
  --coss-footer-band-pad-top: var(--coss-footer-band-pad-y, var(--festina-space-stack));
  --coss-footer-band-pad-bottom: var(--coss-footer-band-pad-y, var(--festina-space-stack));

  padding: var(--coss-footer-band-pad-top) var(--coss-footer-band-pad-x) var(--coss-footer-band-pad-bottom);
  border-top: 1px solid var(--border);
  background: var(--coss-footer-band-bg);
}

.coss-footer {
  margin-top: var(--s-20);
}

.coss-footer__inner {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-6);
}

.coss-footer__copy {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-md-sm);
  line-height: 1.5;
  color: var(--muted-foreground);
}

.coss-footer__meta {
  margin-top: var(--coss-footer-meta-gap, var(--s-2));
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  line-height: 1.5;
  color: color-mix(in oklab, var(--muted-foreground) 58%, white);
}

.coss-footer__actions {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  flex-shrink: 0;
}

.social a .ph {
  font-size: var(--fs-base);
  color: var(--accent);
}

.dom {
  font-size: var(--fs-md-sm);
}

.dom.more {
  background: var(--primary);
  color: var(--primary-foreground);
  border-color: var(--primary);
}

.btn,
.cta-row .btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: var(--card-pad-y-compact) var(--card-pad-x-compact);
  border-radius: calc(var(--radius) - 2px);
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  font-weight: 500;
  text-decoration: none;
  transition:
    background var(--dur-base) var(--ease),
    color var(--dur-base) var(--ease),
    border-color var(--dur-base) var(--ease),
    transform var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease);
}

.btn:hover,
.cta-row .btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-foreground);
}

.btn-primary:hover {
  background: var(--accent);
  color: var(--accent-foreground);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  border: 1px solid var(--border);
  color: var(--foreground);
  background: var(--card);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--primary);
}

.hub-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: color-mix(in oklab, var(--background) 92%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
}

.hub-nav a {
  transition: color var(--dur-base) var(--ease);
}

.hub-nav a.active {
  color: var(--foreground);
  font-weight: 700;
}

.hub-menu {
  display: none;
  appearance: none;
  border: 0;
  background: transparent;
  padding: 0;
  width: 24px;
  height: 18px;
  cursor: pointer;
  color: var(--muted-foreground);
  flex-direction: column;
  justify-content: space-between;
}

.hub-menu span {
  display: block;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--dur-base) var(--ease), opacity var(--dur-fast) var(--ease);
  transform-origin: center;
}

.hub-menu[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hub-menu[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.hub-menu[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.coss-mobile-panel {
  display: none;
  border-top: 1px solid var(--border);
  padding: var(--card-pad-y-compact) var(--card-pad-x-compact) var(--s-5);
  flex-direction: column;
  gap: 12px;
  background: color-mix(in oklab, var(--background) 96%, white);
  box-shadow: var(--shadow-xs);
}

.coss-mobile-panel.is-open {
  display: flex;
}

.coss-mobile-panel a {
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  color: var(--muted-foreground);
}

.coss-mobile-panel a.active {
  color: var(--foreground);
  font-weight: 700;
}

.detail-page {
  --detail-nav-h: 60px;
  --detail-shell-max: 1664px;
  --detail-left-w: 284px;
  --detail-right-w: 284px;
  --detail-gap: var(--s-7);
  --detail-anchor-offset: 96px;
  --detail-index-activation-cushion: 48px;
  --detail-line: color-mix(in oklab, var(--border) 72%, var(--background));
  --detail-quiet: var(--muted-foreground);
  --detail-soft: var(--fg-subtle);
  margin: 0;
  background: var(--background);
  color: var(--foreground);
  font-family: var(--font-body);
}

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

.detail-page.is-drawer-open {
  overflow: hidden;
}

.detail-page.is-work-detail-modal-open {
  overflow: hidden;
}

.detail-topbar {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--detail-line);
  background: color-mix(in oklab, var(--background) 94%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
}

.detail-topbar__inner {
  width: min(100% - var(--shell-inset-x), var(--detail-shell-max));
  min-height: var(--detail-nav-h);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.detail-topbar__lead {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 20px);
  min-width: 0;
  flex: 1 1 auto;
}

.detail-topbar__actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
}

.coss-breadcrumb {
  min-width: 0;
}

.coss-breadcrumb__list {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.coss-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.coss-breadcrumb__link,
.coss-breadcrumb__page {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  max-width: clamp(96px, 18vw, 220px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  line-height: 18px;
  text-decoration: none;
}

.coss-breadcrumb__link {
  color: var(--muted-foreground);
  transition: color 0.15s ease;
}

.coss-breadcrumb__link:hover {
  color: var(--foreground);
}

.coss-breadcrumb__page {
  color: var(--foreground);
  font-weight: 600;
}

.coss-breadcrumb__separator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: 8px;
  color: var(--muted-foreground);
  user-select: none;
}

.coss-breadcrumb__slash {
  font-family: var(--font-label);
  font-size: 12px;
  line-height: 1;
  opacity: 0.72;
}

.detail-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  line-height: 18px;
  font-weight: 700;
  color: var(--foreground);
  text-decoration: none;
  white-space: nowrap;
}

.detail-brand__muted {
  color: var(--gray-9);
}

.detail-topbar__nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  line-height: 18px;
  color: var(--detail-quiet);
}

.detail-topbar__nav a {
  display: inline-flex;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  color: inherit;
  text-decoration: none;
}

.detail-topbar__nav a:hover,
.detail-topbar__nav a.active {
  background: var(--muted);
  color: var(--foreground);
}

.detail-social-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.coss-icon-button {
  display: inline-flex;
  width: 34px;
  height: 34px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--detail-quiet);
  text-decoration: none;
  transition:
    background var(--dur-base) var(--ease),
    color var(--dur-base) var(--ease),
    box-shadow var(--dur-base) var(--ease);
}

.coss-icon-button:hover {
  background: var(--muted);
  color: var(--foreground);
}

.coss-icon-button:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.coss-icon-button--outline {
  border: 1px solid var(--input);
  background: transparent;
  color: var(--primary);
}

.coss-icon-button--outline:hover {
  background: var(--muted);
  border-color: var(--border-strong);
  color: var(--primary);
}

.coss-icon-button .ph,
.coss-icon-button .ph-fill {
  font-size: var(--fs-card-title-mobile);
  line-height: 1;
}

.detail-topbar__divider {
  width: 1px;
  height: 24px;
  background: var(--detail-line);
}

.detail-shell {
  width: min(100% - var(--shell-inset-x), var(--detail-shell-max));
  max-width: var(--detail-shell-max);
  margin: 0 auto;
  padding: var(--shell-pad-top) 0 var(--shell-pad-bottom);
  display: grid;
  grid-template-columns: var(--detail-left-w) minmax(0, 1fr) var(--detail-right-w);
  gap: var(--detail-gap);
  align-items: start;
}

.detail-page main.detail-shell {
  width: min(100% - var(--shell-inset-x), var(--detail-shell-max));
  max-width: var(--detail-shell-max);
  margin: 0 auto;
  padding: var(--shell-pad-top) 0 var(--shell-pad-bottom);
}

.detail-shell--no-right {
  grid-template-columns: var(--detail-left-w) minmax(0, 1fr);
}

.detail-shell--no-right .detail-card {
  max-width: 1100px;
}

.detail-left,
.detail-right {
  position: sticky;
  top: calc(var(--detail-nav-h) + var(--shell-pad-top));
  max-height: calc(100vh - var(--detail-nav-h) - 56px);
  overflow: auto;
  scrollbar-width: none;
}

.detail-left::-webkit-scrollbar,
.detail-right::-webkit-scrollbar {
  display: none;
}

.detail-card {
  width: 100%;
  min-width: 0;
  max-width: var(--content-max-wide);
  margin: 0 auto;
  padding: 44px 48px 56px;
  border: 1px solid var(--detail-line);
  border-radius: 18px;
  background: var(--card);
  box-shadow: var(--shadow-xs);
}

.detail-card [id] {
  scroll-margin-top: calc(var(--detail-nav-h) + var(--detail-anchor-offset));
}

/* COSS Frame — bordered app-surface grouping (coss.com/ui/docs/components/frame) */
.coss-frame {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  isolation: isolate;
  border: 1px solid var(--border);
  border-radius: var(--radius-2xl);
  background: var(--card);
  padding: 4px;
  box-shadow: 0 1px 2px color-mix(in oklab, var(--foreground) 5%, transparent);
}

.coss-frame::before {
  content: "";
  pointer-events: none;
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: calc(var(--radius-2xl) - 1px);
  background: color-mix(in oklab, var(--muted) 72%, transparent);
  box-shadow: inset 0 1px color-mix(in oklab, var(--foreground) 4%, transparent);
}

.coss-frame > * {
  position: relative;
  z-index: 1;
}

.coss-frame__panel + .coss-frame__panel {
  margin-top: 4px;
}

.coss-frame__panel {
  position: relative;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: var(--card);
  background-clip: padding-box;
  padding: var(--s-5);
  box-shadow: none;
}

.coss-frame__header {
  display: flex;
  flex-direction: column;
  padding: var(--s-4) var(--s-5);
  background: transparent;
}

.coss-frame__title {
  margin: 0;
  font-family: var(--font-label);
  font-size: var(--fs-md-sm);
  font-weight: 600;
  line-height: 1.35;
  color: var(--foreground);
}

.coss-frame__description {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-md-sm);
  line-height: 1.5;
  color: var(--muted-foreground);
}

.coss-frame__footer {
  padding: var(--s-4) var(--s-5);
  background: transparent;
}

.coss-frame [id] {
  scroll-margin-top: calc(var(--detail-nav-h) + var(--detail-anchor-offset));
}

/* Separated panels — default frame spacing (coss.com/ui/docs/components/frame#separated-panels) */
.coss-frame--separated .coss-frame__panel + .coss-frame__panel {
  margin-top: 4px;
}

/* COSS Empty — placeholder states (coss.com/ui/docs/components/empty) */
.coss-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 36px 24px;
  text-align: center;
}

.coss-empty__icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--secondary);
  color: var(--muted-foreground);
  font-size: var(--fs-xl);
}

.coss-empty__title {
  margin: 4px 0 0;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--foreground);
}

.coss-empty__description {
  margin: 0;
  max-width: 36ch;
  font-family: var(--font-body);
  font-size: var(--fs-md-sm);
  line-height: 1.55;
  color: var(--muted-foreground);
}

/* Play hub — hero + single-column content (no 3-column shell) */
.play-page {
  --play-sky-top: var(--background);
  --play-sky-bottom: color-mix(in oklab, var(--secondary) 68%, var(--grass-3) 32%);
}

.play-hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: calc(100svh - var(--detail-nav-h));
  overflow: hidden;
  background: linear-gradient(180deg, var(--play-sky-top) 0%, var(--play-sky-bottom) 100%);
}

.play-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: clamp(48px, 8vh, 88px);
  background: linear-gradient(180deg, transparent 0%, color-mix(in oklab, var(--background) 42%, transparent) 100%);
  pointer-events: none;
  z-index: 1;
}

.play-hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.play-hero__wordmark {
  position: relative;
  z-index: 2;
  margin: 0;
  padding: 0 24px;
  max-width: 100%;
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: clamp(4.25rem, 13vw, 9.25rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-align: center;
  color: var(--grass-12);
  pointer-events: none;
}

.play-content {
  position: relative;
  z-index: 2;
  width: min(100% - var(--shell-inset-x), var(--content-max-wide));
  margin: clamp(-132px, -15vh, -88px) auto 0;
  padding: 0 0 var(--shell-pad-bottom);
}

.play-content .detail-card {
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

.play-content .detail-post-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius-md) - 2px);
}

.play-content .detail-post-list .detail-post-row {
  border-bottom: 0;
  padding: 22px 0;
}

.play-content .detail-post-list .detail-post-row:last-child {
  padding-bottom: 8px;
}

.play-content .play-contact-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: var(--s-4);
  --coss-footer-band-pad-top: 16px;
  --coss-footer-band-pad-bottom: 24px;
}

.play-content .play-contact-cta .coss-substack-cta__copy {
  margin: 0;
  flex: 1;
  min-width: 0;
  max-width: none;
}

.play-content .play-contact-cta .coss-substack-cta__action {
  margin: 0;
  flex-shrink: 0;
}

.play-content .detail-post-row--muted .detail-post-title,
.play-content .detail-post-row--muted .detail-post-copy {
  color: var(--detail-quiet);
}

.detail-post-row--video .detail-post-row__body,
.detail-post-row--feature .detail-post-row__body {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
}

.detail-post-row--video .detail-post-copy,
.detail-post-row--feature .detail-post-copy {
  max-width: 68ch;
}

.detail-post-action {
  margin: var(--s-4) 0 0;
}

.detail-post-footer--meta-only {
  justify-content: flex-start;
}

.detail-post-row--video .detail-post-embed,
.detail-post-row--feature .detail-post-embed {
  width: 100%;
  max-width: none;
  margin-top: var(--s-5);
}

.detail-post-embed {
  position: relative;
  width: min(100%, 720px);
  margin-top: var(--s-4);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--secondary);
}

.detail-post-embed--image {
  aspect-ratio: auto;
  height: auto;
  line-height: 0;
}

.detail-post-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.detail-post-embed--image img {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
}

@media (max-width: 900px) {
  .play-content {
    width: min(100% - var(--s-10), var(--content-max-wide));
    margin-top: clamp(-104px, -13vh, -72px);
    padding: 0 0 64px;
  }

  .play-hero__wordmark {
    padding: 0 var(--s-4);
    font-size: clamp(3.5rem, 16vw, 5.5rem);
  }

  .hire-hero__content {
    padding: 0 var(--s-4);
  }

  .hire-hero__title {
    font-size: var(--hire-fs-hero-sm);
  }

  .hire-hero .hire-hero__actions {
    gap: 8px 10px;
  }
}

@media (max-width: 640px) {
  .play-content .play-contact-cta {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}


/* ── Detail shell: tree, drawer, post rows (shared — not work-only) ── */

.detail-rail-group + .detail-rail-group {
  margin-top: 34px;
}

.detail-rail-title {
  margin: 0 0 14px;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  line-height: 18px;
  font-weight: 700;
  color: var(--foreground);
}

.detail-nav-list,
.detail-index-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-nav-list a,
.detail-index-list a {
  display: flex;
  align-items: center;
  min-height: 32px;
  border-radius: 10px;
  font-family: var(--font-label);
  font-size: 15px;
  line-height: 20px;
  color: var(--detail-quiet);
  text-decoration: none;
}

.detail-nav-list a {
  padding: 6px 14px;
}

.detail-nav-list a:hover,
.detail-nav-list a[aria-current="page"] {
  background: var(--muted);
  color: var(--foreground);
}

.detail-nav-list a.is-child {
  padding-left: var(--s-7);
}

.detail-tree {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.detail-tree--site {
  --tree-indent: 22px;
}

.detail-tree ul {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 2px 0 10px;
  padding: 0 0 0 34px;
  list-style: none;
}

.detail-tree--site ul {
  margin-left: 9px;
  padding-left: var(--tree-indent);
  border-left: 1px solid var(--detail-line);
}

.detail-tree__item,
.detail-tree__folder {
  display: flex;
  min-height: 32px;
  align-items: center;
  gap: 9px;
  border-radius: 10px;
  font-family: var(--font-label);
  font-size: 15px;
  line-height: 20px;
  color: var(--detail-quiet);
  text-decoration: none;
}

.detail-tree__item span,
.detail-tree__folder span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.detail-tree__item {
  padding: 6px 12px;
}

.detail-tree__folder {
  width: 100%;
  padding: 6px 10px;
  border: 0;
  color: var(--foreground);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.detail-tree__item .ph-file {
  color: var(--detail-soft);
  font-size: var(--fs-base);
  flex: 0 0 auto;
}

.detail-tree__folder .ph-caret-down {
  color: var(--detail-soft);
  font-size: var(--fs-md-sm);
  flex: 0 0 auto;
  transition: transform var(--dur-base) var(--ease);
}

.detail-tree__folder .ph-folder,
.detail-tree__folder .ph-folder-open {
  color: var(--detail-soft);
  font-size: var(--fs-card-title-mobile);
  flex: 0 0 auto;
}

.detail-tree__item:hover,
.detail-tree__folder:hover,
.detail-tree__item[aria-current="page"],
.detail-tree__group.is-current-parent > .detail-tree__folder {
  background: var(--muted);
  color: var(--foreground);
}

.detail-tree__folder:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.detail-tree--site .detail-tree__group:not(.is-expanded) > ul {
  display: none;
}

.detail-tree--site .detail-tree__group:not(.is-expanded) > .detail-tree__folder .ph-caret-down {
  transform: rotate(-90deg);
}

.detail-tree__item[aria-current="page"] {
  font-weight: 600;
}

.detail-drawer__handle {
  display: none;
}

.detail-drawer__nav {
  min-width: 0;
}

.detail-drawer-social {
  display: none;
}

.detail-drawer-footer {
  display: none;
}

.detail-pill {
  margin-left: 8px;
  padding: 2px 7px;
  border-radius: var(--radius-sm);
  background: color-mix(in oklab, var(--ring) 28%, white);
  color: var(--primary);
  font-size: var(--fs-xs);
  line-height: 16px;
}

.detail-index-list {
  position: relative;
  gap: 0;
  padding-left: 0;
  border-left: 1px solid var(--detail-line);
}

.detail-index-list a {
  position: relative;
  min-height: 36px;
  padding: var(--s-2) 0 var(--s-2) var(--s-4);
  border-radius: 0;
  color: var(--muted-foreground);
  transition:
    color var(--dur-base) var(--ease),
    background-color var(--dur-base) var(--ease);
}

.detail-index-list a:hover,
.detail-index-list a[aria-current="true"] {
  color: var(--foreground);
}

.detail-index-list a:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.detail-index-list a[aria-current="true"]::before {
  content: "";
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: -1px;
  width: 2px;
  border-radius: 999px;
  background: var(--foreground);
}

.detail-index-list a.is-child {
  padding-left: var(--s-7);
}

.detail-mobile-actions,
.detail-drawer,
.detail-drawer-scrim {
  display: none;
}

.detail-drawer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}

.detail-drawer__title {
  margin: 0;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  line-height: 18px;
  font-weight: 700;
  color: var(--foreground);
}

.detail-drawer__close {
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  color: var(--detail-quiet);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.detail-kicker {
  margin: 0 0 14px;
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  line-height: 16px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--detail-soft);
}

.detail-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: clamp(42px, 4.2vw, 56px);
  line-height: 1.04;
  letter-spacing: 0;
  color: var(--foreground);
  overflow-wrap: anywhere;
}

.detail-deck {
  margin: 0;
  max-width: 68ch;
  font-size: var(--fs-card-title-mobile);
  line-height: 1.65;
  color: var(--detail-quiet);
  overflow-wrap: anywhere;
}

.detail-meta {
  margin-top: var(--s-7);
  padding-top: 22px;
  border-top: 1px solid var(--detail-line);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  line-height: 18px;
  color: var(--detail-quiet);
}

.detail-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--gray-8);
}

.detail-section {
  padding-top: 42px;
}

.ai-field-note-page .detail-left[aria-label="Site tree"] .detail-rail-title,
.ai-field-note-page #ai-section-drawer .detail-drawer__title {
  display: none;
}

.detail-substack-cta {
  --coss-footer-band-pad-top: 34px;
  --coss-footer-band-pad-bottom: 40px;
  --coss-footer-band-pad-x: 48px;

  margin: 48px -48px -56px;
  padding-top: var(--coss-footer-band-pad-top);
  border-radius: 0 0 17px 17px;
}

.coss-substack-cta__copy {
  max-width: 64ch;
}

.coss-substack-cta__action {
  margin: 22px 0 0;
}

.coss-case-study-cta__copy {
  max-width: 64ch;
}

.coss-case-study-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
}

.coss-work-tree-focus {
  outline: 2px solid var(--ring);
  outline-offset: 6px;
  border-radius: var(--radius-md);
}

.detail-divider {
  height: 1px;
  margin: 34px 0 0;
  background: var(--detail-line);
}

.detail-post-list {
  margin-top: 50px;
  border-top: 1px solid var(--detail-line);
}

.detail-post-row {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 30px 0;
  border-bottom: 1px solid var(--detail-line);
}

.detail-post-row.detail-post-row--video,
.detail-post-row.detail-post-row--feature {
  display: block;
}

.detail-post-media {
  width: 80px;
  height: 60px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-post-media svg {
  width: 58px;
  height: 48px;
}

.detail-post-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: 27px;
  line-height: 32px;
  letter-spacing: 0;
  color: var(--foreground);
  overflow-wrap: anywhere;
}

.detail-post-copy {
  margin: 10px 0 0;
  max-width: 58ch;
  font-size: var(--fs-base);
  line-height: 24px;
  color: var(--detail-quiet);
  overflow-wrap: anywhere;
}

.detail-post-footer {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
}

.detail-post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-label);
  font-size: var(--fs-xs);
  line-height: 16px;
  color: var(--detail-soft);
}

.detail-card .ai-label {
  color: var(--detail-soft);
}

.detail-card .ai-label::before {
  background: var(--detail-soft);
}

.detail-card .ai-section-title {
  max-width: 24ch;
  color: var(--foreground);
}

.detail-card .ai-footer-copy,
.detail-card .ai-footer-meta {
  color: var(--detail-quiet);
}

.detail-card .stages-lede {
  margin-top: 34px;
}

.detail-card .dp-card-header {
  display: none;
}

@media (max-width: 1280px) {
  .detail-page {
    --detail-left-w: 236px;
    --detail-right-w: 236px;
    --detail-gap: var(--s-5);
  }

  .detail-topbar__inner,
  .detail-shell {
    width: min(100% - 40px, var(--detail-shell-max));
  }

  .detail-page main.detail-shell {
    width: min(100% - 40px, var(--detail-shell-max));
  }

  .detail-card {
    padding-inline: 40px;
  }

  .detail-substack-cta {
    --coss-footer-band-pad-x: 40px;

    margin-right: -40px;
    margin-left: -40px;
  }

  .work-detail-page .detail-card.work-detail-card > .hero,
  .work-detail-page .detail-card.work-detail-card > .case-body {
    padding-left: 40px;
    padding-right: 40px;
  }

  .work-detail-page .detail-card.work-detail-card > .stats-band,
  .work-detail-page .detail-card.work-detail-card > .showcase-wrap {
    padding-left: 40px;
    padding-right: 40px;
  }
}

@media (max-width: 1040px) {
  .detail-shell,
  .detail-shell--no-right {
    width: min(100% - 32px, 900px);
    grid-template-columns: minmax(0, 1fr);
    padding-top: 18px;
  }

  .detail-page main.detail-shell {
    width: min(100% - 32px, 900px);
    padding: var(--s-5) 0 var(--shell-pad-bottom);
  }

  .work-detail-modal__surface {
    width: min(100% - 32px, 900px);
    max-height: calc(100vh - 24px);
    margin: 12px auto;
  }

  .work-detail-modal__document,
  .work-detail-modal__loading {
    width: min(100% - 40px, 900px);
  }

  .detail-left,
  .detail-right {
    display: none;
  }

  .detail-social-nav {
    display: none;
  }

  .detail-page .hub-menu {
    display: flex;
  }

  .detail-card,
  .detail-shell--no-right .detail-card {
    width: 100%;
    max-width: none;
  }

  .work-detail-page .detail-card.work-detail-card {
    max-width: none;
  }

  .work-detail-page .detail-card.work-detail-card > .hero,
  .work-detail-page .detail-card.work-detail-card > .case-body {
    padding: 56px 32px 72px;
  }

  .work-detail-page .detail-card.work-detail-card > .stats-band,
  .work-detail-page .detail-card.work-detail-card > .showcase-wrap {
    padding-left: 32px;
    padding-right: 32px;
  }

  .detail-mobile-actions {
    position: sticky;
    top: var(--detail-nav-h);
    z-index: 50;
    display: flex;
    justify-content: space-between;
    gap: 10px;
    width: min(100% - 32px, 900px);
    margin: 0 auto;
    padding: 10px 0;
    background: color-mix(in oklab, var(--background) 92%, transparent);
    backdrop-filter: saturate(140%) blur(12px);
  }

  .detail-drawer-scrim {
    position: fixed;
    inset: 0;
    z-index: 80;
    display: block;
    background: rgba(16, 17, 15, 0.24);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--dur-base) var(--ease);
  }

  .detail-drawer-scrim.is-open {
    opacity: 1;
    pointer-events: all;
  }

  .detail-drawer {
    position: fixed;
    top: 0;
    bottom: 0;
    z-index: 90;
    display: flex;
    flex-direction: column;
    width: min(86vw, 348px);
    padding: 22px;
    background: var(--popover);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    overflow: auto;
    transition: transform var(--dur-base) var(--ease);
  }

  .detail-drawer--left {
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    max-height: min(82vh, 720px);
    padding-top: 12px;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    transform: translateY(102%);
    overflow: hidden;
  }

  .detail-drawer--right {
    right: 0;
    border-radius: var(--radius-md) 0 0 var(--radius-md);
    transform: translateX(102%);
  }

  .detail-drawer.is-open {
    transform: translateX(0);
  }

  .detail-drawer--left.is-open {
    transform: translateY(0);
  }

  .detail-drawer--left .detail-drawer__handle {
    display: block;
    width: 42px;
    height: 5px;
    flex: 0 0 auto;
    margin: 0 auto 14px;
    border-radius: 999px;
    background: color-mix(in oklab, var(--detail-soft) 62%, white);
  }

  .detail-drawer--left .detail-drawer__nav {
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    padding-right: 4px;
    padding-bottom: 14px;
  }

  .detail-drawer-footer {
    display: flex;
    flex: 0 0 auto;
    flex-wrap: nowrap;
    align-items: center;
    gap: 8px;
    margin-top: var(--s-4);
    padding-top: var(--s-4);
    border-top: 1px solid var(--detail-line);
  }

  .detail-drawer-footer__spacer {
    flex: 1 1 auto;
    min-width: 8px;
  }

  .detail-drawer-social {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: var(--s-4);
    padding-top: var(--s-4);
    border-top: 1px solid var(--detail-line);
  }

  .detail-mobile-actions .coss-button {
    flex: 1;
    min-width: 0;
    white-space: normal;
  }
}

@media (max-width: 767px) {
  .detail-page {
    --detail-nav-h: 56px;
  }

  .detail-topbar__inner {
    width: min(100% - 32px, var(--detail-shell-max));
    gap: var(--s-4);
  }

  .detail-brand {
    font-size: var(--fs-md-sm);
  }

  .detail-topbar__nav {
    display: none;
  }

  .detail-shell,
  .detail-shell--no-right {
    width: 100%;
    padding: 0 0 56px;
  }

  .detail-page main.detail-shell {
    width: 100%;
    padding: 0 0 56px;
  }

  .work-detail-modal__surface {
    width: 100%;
    max-height: 100vh;
    margin: 0;
    border-width: 0;
    border-radius: 0;
  }

  .work-detail-modal__bar {
    min-height: var(--detail-nav-h);
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 8px;
    padding: 8px 12px;
  }

  .work-detail-modal__close,
  .work-detail-modal__open {
    min-height: 34px;
    padding-right: 10px;
    padding-left: 10px;
    font-size: var(--fs-xs);
  }

  .work-detail-modal__title {
    text-align: left;
  }

  .work-detail-modal__content {
    min-height: calc(100vh - var(--detail-nav-h));
    padding: 0 0 42px;
  }

  .work-detail-modal__document,
  .work-detail-modal__loading {
    width: 100%;
  }

  .work-detail-modal__loading {
    min-height: 280px;
    border-right: 0;
    border-left: 0;
    border-radius: 0;
  }

  .detail-mobile-actions {
    top: var(--detail-nav-h);
    width: 100%;
    padding: var(--s-2) var(--s-4);
    border-bottom: 1px solid var(--detail-line);
  }

  .detail-mobile-actions .coss-button {
    flex: 1;
    min-width: 0;
    white-space: normal;
  }

  .detail-card {
    border: 0;
    border-radius: 0;
    padding: var(--shell-pad-top) var(--s-6) var(--s-10);
    box-shadow: none;
  }

  .detail-substack-cta {
    --coss-footer-band-pad-top: 30px;
    --coss-footer-band-pad-bottom: 34px;
    --coss-footer-band-pad-x: 26px;

    margin: 44px -26px -50px;
    border-radius: 0;
  }

  .work-detail-page .detail-card.work-detail-card > .hero {
    border-radius: 0;
  }

  .work-detail-page .detail-card.work-detail-card > .hero,
  .work-detail-page .detail-card.work-detail-card > .case-body {
    padding: 48px 26px 64px;
  }

  .work-detail-page .detail-card.work-detail-card > .stats-band,
  .work-detail-page .detail-card.work-detail-card > .showcase-wrap {
    padding-left: 26px;
    padding-right: 26px;
  }

  .detail-title {
    font-size: var(--fs-2xl);
    line-height: 40px;
  }

  .detail-deck {
    font-size: var(--fs-base);
  }

  .detail-post-row {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .detail-post-media {
    display: none;
  }

  .detail-post-title {
    font-size: 25px;
    line-height: 30px;
  }

  .detail-post-footer {
    display: block;
  }

  .detail-post-footer .coss-button {
    margin-top: 14px;
  }
}

@media (max-width: 767px) {
  .hub-menu {
    display: flex;
  }

  .mm-sidenav {
    bottom: var(--s-5);
    left: var(--s-5);
  }

  .coss-footer {
    margin-top: var(--s-16);
  }

  .coss-footer-band {
    --coss-footer-band-pad-top: var(--coss-footer-band-pad-y, var(--festina-space-stack));
    --coss-footer-band-pad-bottom: var(--coss-footer-band-pad-y, var(--festina-space-stack));
  }

  .coss-footer__inner {
    display: block;
  }

  .coss-footer__actions {
    margin-top: var(--s-5);
  }
}

/* ── Colophon page (shahimim.com/tools-inspired rows on COSS tokens) ── */

.colophon-page .colophon-main {
  width: min(100% - var(--shell-inset-x), var(--content-max-narrow));
  max-width: var(--content-max-narrow);
  margin: 0 auto;
  padding: var(--s-12) 0 var(--shell-pad-bottom);
}

.colophon-frame {
  width: 100%;
}

.colophon-frame__header {
  padding: var(--s-6) var(--s-5) var(--s-5);
}

.colophon-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: var(--font-display-weight);
  font-size: clamp(34px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: 0;
  color: var(--foreground);
}

.colophon-deck {
  margin: 0;
  max-width: 62ch;
  font-family: var(--font-body);
  font-size: var(--fs-card-title-mobile);
  line-height: 1.6;
  color: var(--muted-foreground);
}

.colophon-frame .coss-frame__panel.colophon-section {
  padding: var(--s-5);
}

.colophon-section__title {
  margin: 0 0 var(--s-4);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: 24px;
  line-height: 1.25;
  font-weight: 500;
  color: var(--foreground);
}

.colophon-tool-list {
  display: grid;
}

.colophon-tool-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
}

.colophon-tool-list .colophon-tool-row:first-child {
  padding-top: 4px;
}

.colophon-tool-list .colophon-tool-row:last-child {
  padding-bottom: 4px;
}

.colophon-tool-row__icon {
  flex-shrink: 0;
  text-decoration: none;
}

.colophon-tool-row__thumb {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--secondary);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}

.colophon-tool-row__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.colophon-tool-row__initial {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 600;
  line-height: 1;
  color: var(--muted-foreground);
}

.colophon-tool-row__body {
  flex: 1;
  min-width: 0;
}

.colophon-tool-row__title {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.5;
  font-weight: 500;
  color: var(--foreground);
  text-decoration: none;
  transition: opacity var(--dur-fast) var(--ease);
}

a.colophon-tool-row__title:hover {
  opacity: 0.7;
}

a.colophon-tool-row__title:focus-visible,
.colophon-tool-row__visit:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 2px;
}

.colophon-tool-row__note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin: 2px 0 0;
  font-family: var(--font-body);
  font-size: var(--fs-md-sm);
  line-height: 1.5;
  color: var(--muted-foreground);
}

.colophon-tool-row__branch {
  flex-shrink: 0;
  color: color-mix(in oklab, var(--muted-foreground) 55%, var(--border));
  user-select: none;
}

.colophon-tool-row__visit {
  flex-shrink: 0;
  align-self: center;
  margin-left: auto;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  background: color-mix(in oklab, var(--accent) 18%, var(--card));
  color: var(--foreground);
  font-family: var(--font-label);
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transition:
    opacity var(--dur-fast) var(--ease),
    background-color var(--dur-fast) var(--ease);
}

.colophon-tool-row__visit .ph {
  font-size: var(--fs-2xs);
  vertical-align: -1px;
}

.colophon-tool-row:hover .colophon-tool-row__visit,
.colophon-tool-row:focus-within .colophon-tool-row__visit {
  opacity: 1;
  pointer-events: auto;
}

.colophon-tool-row__visit:hover {
  background: color-mix(in oklab, var(--accent) 28%, var(--card));
}

.coss-footer__current {
  font-family: var(--font-label);
  font-size: var(--fs-sm);
  font-weight: 500;
  line-height: 1;
  color: var(--muted-foreground);
  padding: 0 12px;
}

@media (max-width: 1280px) {
  .colophon-page .colophon-main {
    width: min(100% - var(--s-10), var(--content-max-narrow));
  }
}

@media (max-width: 1040px) {
  .colophon-page .colophon-main {
    width: min(100% - var(--s-8), var(--content-max-narrow));
    padding: var(--s-7) 0 var(--s-16);
  }
}

@media (max-width: 767px) {
  .colophon-page .colophon-main {
    width: 100%;
    max-width: none;
    padding: 0 0 56px;
  }

  .colophon-page .colophon-frame.coss-frame {
    border-radius: 0;
    border-right: 0;
    border-left: 0;
    padding: 0;
    box-shadow: none;
  }

  .colophon-page .colophon-frame.coss-frame::before {
    border-radius: 0;
  }

  .colophon-page .colophon-frame .coss-frame__panel + .coss-frame__panel {
    margin-top: 0;
  }

  .colophon-page .colophon-frame .coss-frame__panel {
    border-radius: 0;
    border-right: 0;
    border-left: 0;
  }

  .colophon-frame__header {
    padding: var(--shell-pad-top) var(--s-6) var(--s-7);
  }

  .colophon-frame .coss-frame__panel.colophon-section {
    padding: 22px 26px;
  }

  .colophon-title {
    font-size: var(--fs-2xl);
    line-height: 1.1;
  }

  .colophon-deck {
    font-size: var(--fs-base);
    line-height: 1.55;
  }

  .colophon-section__title {
    font-size: var(--fs-lg);
    margin-bottom: 14px;
    padding-bottom: 10px;
  }

  .colophon-tool-row {
    display: grid;
    grid-template-columns: 36px minmax(0, 1fr);
    grid-template-rows: auto auto;
    column-gap: 12px;
    row-gap: 8px;
    padding: 14px 0;
  }

  .colophon-tool-row__icon {
    grid-row: 1 / -1;
    align-self: start;
  }

  .colophon-tool-row__body {
    grid-column: 2;
    min-width: 0;
  }

  .colophon-tool-row__visit {
    grid-column: 2;
    justify-self: start;
    align-self: start;
    margin-left: 0;
    opacity: 1;
    pointer-events: auto;
  }

  .colophon-page .coss-footer {
    margin-top: 0;
  }

  .colophon-page .coss-footer__actions {
    flex-wrap: wrap;
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .colophon-frame__header {
    padding: var(--s-8) var(--s-5) var(--s-6);
  }

  .colophon-frame .coss-frame__panel.colophon-section {
    padding: var(--card-pad-y-compact) var(--s-5);
  }

  .colophon-title {
    font-size: 32px;
  }

  .colophon-deck {
    font-size: 15px;
  }

  .colophon-section__title {
    font-size: var(--fs-card-title-mobile);
  }

  .colophon-tool-row__title {
    font-size: 15px;
  }

  .colophon-tool-row__note {
    font-size: var(--fs-sm);
  }
}

@media (hover: none) {
  .colophon-tool-row__visit {
    opacity: 1;
    pointer-events: auto;
  }
}

/* COSS Accordion — vanilla <details> (see coss.com/ui/docs/components/accordion) */
.coss-accordion {
  display: grid;
  border: 1px solid var(--detail-line);
  border-radius: var(--radius-md);
  background: transparent;
  overflow: hidden;
}

.coss-accordion__item + .coss-accordion__item {
  border-top: 1px solid var(--detail-line);
}

.coss-accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  list-style: none;
  text-align: left;
}

.coss-accordion__trigger::-webkit-details-marker {
  display: none;
}

.coss-accordion__trigger-text {
  min-width: 0;
  font-family: var(--font-label);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--detail-soft);
}

.coss-accordion__icon {
  flex: 0 0 auto;
  font-size: 14px;
  line-height: 1;
  color: var(--detail-soft);
  transition: transform 180ms var(--ease);
}

.coss-accordion__item[open] .coss-accordion__icon {
  transform: rotate(180deg);
}

.coss-accordion__trigger:hover .coss-accordion__trigger-text,
.coss-accordion__trigger:hover .coss-accordion__icon {
  color: var(--foreground);
}

.coss-accordion__trigger:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: -2px;
}

.coss-accordion__panel {
  padding: 0 16px 16px;
}

.coss-accordion__learning + .coss-accordion__learning {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid color-mix(in oklab, var(--border) 72%, transparent);
}

.coss-accordion__learning-label {
  margin: 0 0 5px;
  font-family: var(--font-label);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  line-height: 14px;
  text-transform: uppercase;
  color: var(--detail-soft);
}

.coss-accordion__copy {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--detail-quiet);
}

.coss-accordion__copy strong {
  color: var(--foreground);
  font-weight: 600;
}

/* Section variant — same kicker trigger as learnings; panel holds hire section content (docs/accordion-component.md) */
.coss-accordion--section .coss-accordion__panel {
  display: grid;
  gap: var(--hire-persona-content-gap, 12px);
}