/* =============================================================================
   Salon — Direction C. The whole gathering as ONE living page, not four apps.
   Chrome-light, borderless, generous whitespace; the four modes are stacked
   sections you scroll through, with a thin floating ANCHOR rail that highlights
   the current section and jumps between them. The Wall is the immersive payoff.
   Still Cool Zen; per-Loop theming remains a runtime knob.

   PORT TARGETS:
     .sTop          → LoopInteriorChrome (TopChrome bare, minimal)
     .anchor        → NEW anchor-rail nav (replaces bottom TabBar) — see PORT MAP
     .sHero         → LoopDetailHeader (full-bleed cover variant)
     .sPlan/.sRoster→ LoopTabView (borderless)
     .sList/.sClaim → spread.module.css / lists (borderless rows, text-link claim)
     .sWall/.sPost  → wall WallLayout "Mosaic/immersive" + WallPostCard
   ========================================================================== */

.app {
  position: relative;
  z-index: var(--z-content);
  min-block-size: 100dvh;
  padding-block-end: var(--space-10);
}
.frame {
  max-inline-size: 40rem;
  margin-inline: auto;
  /* the scroll-spine owns a slim right gutter — content clears it */
  padding-inline: var(--space-4) var(--space-6);
}
@media (width >= 48rem) {
  .frame {
    padding-inline: var(--space-4);
  }
}

/* ---- chrome-light top: just a floating back + menu ----------------------- */
.sTop {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-chrome);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--space-3) + env(safe-area-inset-top, 0px)) var(--space-4) var(--space-3);
  pointer-events: none;
  background: linear-gradient(to bottom, color-mix(in srgb, #05100e 30%, transparent), transparent);
}
.sTop > * {
  pointer-events: auto;
}
.sTopActions {
  display: inline-flex;
  gap: var(--space-2);
}
.sTop .chip {
  color: #fff;
  background: color-mix(in srgb, #05100e 28%, transparent);
  border-color: transparent;
}

/* ---- full-bleed cover hero ----------------------------------------------- */
.sHero {
  position: relative;
  margin-inline: calc(50% - 50vw);
  inline-size: 100vw;
  aspect-ratio: 4 / 3;
  max-block-size: 82vh;
  background: linear-gradient(
    158deg,
    var(--loop-a, var(--color-sky)),
    var(--loop-b, var(--color-accent-default)) 50%,
    var(--loop-c, var(--color-sage-deep))
  );
}
.sHero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(70% 50% at 74% 12%, rgba(255, 255, 255, 0.4), transparent 60%),
    radial-gradient(90% 60% at 30% 108%, rgba(0, 0, 0, 0.4), transparent 60%);
  mix-blend-mode: soft-light;
}
.sHeroScrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, color-mix(in srgb, #05100e 82%, transparent), transparent 55%);
}
.sHeroText {
  position: absolute;
  inset-block-end: var(--space-7);
  inset-inline: 0;
  margin-inline: auto;
  inline-size: min(96vw, 40rem);
  padding-inline: var(--space-2);
  color: #fff;
}
.sEyebrow {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  opacity: 0.85;
}
.sTitle {
  margin-block-start: var(--space-2);
  font-size: var(--font-size-display);
  font-weight: var(--font-weight-heavy);
  line-height: var(--line-tight);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}
.sHeroMeta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-block-start: var(--space-3);
  font-size: var(--font-size-base);
}

/* ---- section rhythm: quiet typographic headers, borderless --------------- */
.sSection {
  scroll-margin-block-start: var(--space-7);
  padding-block: var(--space-8) var(--space-4);
}
.sSectionHead {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-block-end: var(--space-5);
}
.sKicker {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-heavy);
  letter-spacing: var(--tracking-tight);
}
.sRule {
  flex: 1;
  block-size: 1px;
  background: var(--color-border-default);
}
.sCount {
  font-size: var(--font-size-sm);
  color: var(--color-text-subtle);
}

/* Plan: borderless rows */
.sPlan {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.sPlanRow {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}
.sPlanGlyph {
  display: inline-grid;
  place-items: center;
  inline-size: var(--control-md);
  block-size: var(--control-md);
  border-radius: var(--radius-md);
  flex: none;
}
.sPlanRow b {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-snug);
}
.sPlanRow span {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
}
.sPlanRow .btn {
  margin-inline-start: auto;
}
.sQuote {
  margin-block-start: var(--space-2);
  font-size: var(--font-size-lg);
  line-height: var(--line-relaxed);
  color: var(--color-text-primary);
}
.sQuoteBy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-block-start: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Roster: horizontal avatar scroll */
.sRoster {
  display: flex;
  gap: var(--space-4);
  overflow-x: auto;
  scrollbar-width: none;
  margin-inline: calc(-1 * var(--space-2));
  padding-inline: var(--space-2);
}
.sRoster::-webkit-scrollbar {
  display: none;
}
.sPerson {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  flex: none;
  inline-size: 4rem;
}
.sPerson .avatar {
  inline-size: var(--control-lg);
  block-size: var(--control-lg);
}
.sPerson span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-inline-size: 100%;
}

/* Spread & List: borderless rows with hairline dividers */
.sGroup + .sGroup {
  margin-block-start: var(--space-6);
}
.sGroupName {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-block-end: var(--space-2);
}
.sItem {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-block-end: 1px solid var(--color-border-default);
}
.sItemBody {
  flex: 1;
  min-inline-size: 0;
}
.sItemBody b {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-medium);
}
.sItemBody span {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}
.sClaim {
  flex: none;
  border: none;
  background: transparent;
  color: var(--color-accent-deep);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-wide);
}
.sClaim:hover {
  text-decoration: underline;
}
.sDone {
  flex: none;
  color: var(--color-text-subtle);
  font-size: var(--font-size-sm);
}

.sTile {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-block-end: 1px solid var(--color-border-default);
  inline-size: 100%;
  text-align: start;
  background: transparent;
  border-inline: none;
  border-block-start: none;
}
.sTile b {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}
.sTile p {
  font-size: var(--font-size-sm);
  color: var(--color-text-subtle);
}
.sTileMid {
  flex: 1;
  min-inline-size: 0;
}
.sTilePct {
  flex: none;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
}

/* Wall: immersive full-bleed gallery (the payoff) */
.sWall {
  margin-inline: calc(50% - 50vw);
  inline-size: 100vw;
  padding-inline: var(--space-2);
  columns: 2;
  column-gap: var(--space-2);
}
.sPost {
  break-inside: avoid;
  margin-block-end: var(--space-2);
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.sPostImg {
  inline-size: 100%;
  background: linear-gradient(
    140deg,
    color-mix(in srgb, var(--tone-a, var(--color-sky)) 66%, var(--color-surface-raised)),
    color-mix(in srgb, var(--tone-b, var(--color-sage-deep)) 70%, var(--color-surface-sunken))
  );
}
.sPost--a .sPostImg {
  aspect-ratio: 3 / 4;
}
.sPost--b .sPostImg {
  aspect-ratio: 1 / 1;
}
.sPost--c .sPostImg {
  aspect-ratio: 4 / 5;
}
.sPostOver {
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-3) var(--space-2);
  background: linear-gradient(to top, color-mix(in srgb, #05100e 70%, transparent), transparent);
  color: #fff;
}
.sPostOver span {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.sPostReact {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}
.sNote {
  break-inside: avoid;
  margin-block-end: var(--space-2);
  padding: var(--space-5);
  border-radius: var(--radius-sm);
  background: linear-gradient(
    170deg,
    var(--color-gold-soft),
    color-mix(in srgb, var(--color-gold-soft) 55%, var(--color-surface-raised))
  );
  font-size: var(--font-size-base);
  line-height: var(--line-snug);
}
.sNoteBy {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-block-start: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}
.sCompose {
  display: flex;
  gap: var(--space-2);
  margin-block: var(--space-2) var(--space-5);
}
.sCompose .btn {
  flex: 1;
}

/* ---- floating "scroll spine" anchor rail (the nav) ----------------------- */
.anchor {
  position: fixed;
  inset-inline-end: var(--space-3);
  inset-block-start: 50%;
  transform: translateY(-50%);
  z-index: var(--z-tabbar);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
}
.anchor button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0;
  border: none;
  background: transparent;
  color: transparent;
}
/* inactive = a quiet dot */
.anchor button::after {
  content: '';
  inline-size: 0.5rem;
  block-size: 0.5rem;
  border-radius: var(--radius-pill);
  background: var(--color-border-strong);
  transition:
    background-color var(--dur-base) var(--ease),
    transform var(--dur-base) var(--ease);
}
.anchor button .i {
  display: none;
}
.anchor button .label {
  max-inline-size: 0;
  overflow: hidden;
  white-space: nowrap;
  opacity: 0;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
}
/* active = an accent pill with icon + label */
.anchor button[aria-current='true'] {
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-2);
  border-radius: var(--radius-pill);
  background: var(--color-accent-deep);
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow);
}
.anchor button[aria-current='true']::after {
  display: none;
}
.anchor button[aria-current='true'] .i {
  display: block;
  inline-size: var(--icon-sm);
  block-size: var(--icon-sm);
}
.anchor button[aria-current='true'] .label {
  max-inline-size: 5rem;
  opacity: 1;
}

@media (width >= 40rem) {
  .sWall {
    columns: 3;
  }
}