/**
 * Focus Lab — stage + DOF specimens.
 * OSD chrome is entirely huddi.css (Silkscreen). Do not style OSD type here.
 */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--stage-bg, #f7f3ec);
  color: var(--stage-ink, #1c1916);
}

body[data-theme="ink"] {
  --stage-bg: #12110f;
  --stage-ink: #f3efe7;
  --stage-muted: #8a8278;
  --stage-line: #2a2622;
}

body[data-theme="paper"] {
  --stage-bg: #f7f3ec;
  --stage-ink: #1c1916;
  --stage-muted: #5c564e;
  --stage-line: #ddd5c8;
}

/* ── Stage (specimen product UI) ─────────────────────────── */

#stage {
  position: fixed;
  inset: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(10rem, 14rem) 1fr;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "top top"
    "left main";
  gap: 0;
  padding: clamp(1rem, 3vw, 2.5rem);
  padding-right: clamp(1rem, 3vw, 2.5rem);
  /* leave room for OSD on wide screens */
  padding-right: max(clamp(1rem, 3vw, 2.5rem), min(22ch, 28vw));
  background: var(--stage-bg);
  color: var(--stage-ink);
  overflow: hidden;
}

#topNav {
  grid-area: top;
  margin-bottom: 1.5rem;
  min-height: 3rem;
}

#leftNav {
  grid-area: left;
  align-self: start;
  padding-top: 0.5rem;
}

#main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: clamp(1rem, 4vw, 3rem);
  min-width: 0;
}

/* ── DOF nav shared ──────────────────────────────────────── */

.dof-nav {
  font-family: var(--specimen-font, Georgia, serif);
  font-size: var(--specimen-size, 18px);
  letter-spacing: var(--specimen-tracking, 0);
  font-variation-settings: var(--specimen-fvs, normal);
  color: var(--stage-ink);
}

.dof-track {
  display: flex;
  will-change: transform;
}

.dof-track--y {
  flex-direction: column;
}

.dof-track--x {
  flex-direction: row;
  align-items: center;
  gap: 0.35em;
}

.dof-item {
  display: flex;
  align-items: center;
  background: none;
  border: none;
  padding: 0 0.15em;
  margin: 0;
  font: inherit;
  font-variation-settings: inherit;
  letter-spacing: inherit;
  color: inherit;
  cursor: pointer;
  text-align: left;
  white-space: nowrap;
  transform-origin: left center;
  -webkit-font-smoothing: antialiased;
}

.dof-nav--top .dof-item {
  transform-origin: center center;
  padding: 0 0.55em;
  justify-content: center;
}

.dof-item:focus-visible {
  outline: 2px solid #c45c3e;
  outline-offset: 3px;
}

/* Hover focus pull — Making Software style */
.dof-item.hover-pull:hover {
  opacity: 1 !important;
  filter: blur(var(--hover-blur, 0px)) !important;
  transform: translate(0, 0) scale(1) rotate(0deg) !important;
  transition-duration: var(--hover-ms, 200ms) !important;
  z-index: 2;
}

.dof-item.is-focus {
  font-weight: 600;
}

/* Debug focus plane */
.dof-nav.debug-plane {
  position: relative;
}
.dof-nav--left.debug-plane::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 0;
  width: 4px;
  height: var(--dof-row, 48px);
  background: #c45c3e;
  border-radius: 1px;
  pointer-events: none;
  z-index: 5;
}
.dof-nav--top.debug-plane .dof-top-viewport {
  outline: 1px dashed color-mix(in srgb, #c45c3e 50%, transparent);
  outline-offset: 4px;
}

/* Top nav layout */
.dof-nav--top {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-width: 0;
}

.dof-brand {
  font-family: inherit;
  font-size: 1.05em;
  font-weight: 600;
  letter-spacing: inherit;
  font-variation-settings: inherit;
  flex-shrink: 0;
  white-space: nowrap;
}

.dof-top-viewport {
  min-width: 0;
  overflow: hidden;
  flex: 1;
}

.dof-nav--top[data-top-mode="FIXED"] .dof-top-viewport {
  overflow: visible;
}

.dof-nav--top[data-top-mode="SLIDE"] .dof-top-viewport {
  overflow: hidden;
  mask-image: linear-gradient(90deg, #000 0%, #000 85%, transparent 100%);
}

/* Left nav — clip soft bottom optional */
.dof-nav--left {
  overflow: visible;
  max-height: calc(var(--dof-row, 48px) * 7);
}

/* ── Specimen main ───────────────────────────────────────── */

.ladder-title {
  font-family: var(--specimen-font, Georgia, serif);
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-variation-settings: var(--specimen-fvs, normal);
  letter-spacing: var(--specimen-tracking, 0);
  line-height: 1.05;
  margin-bottom: 1.75rem;
  font-weight: 500;
}

.ladder-rows {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.ladder-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.ladder-d {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--stage-muted);
  width: 2rem;
  flex-shrink: 0;
}

.ladder-sample {
  font-family: var(--specimen-font, Georgia, serif);
  font-size: var(--specimen-size, 18px);
  font-variation-settings: var(--specimen-fvs, normal);
  letter-spacing: var(--specimen-tracking, 0);
  color: var(--stage-ink);
  display: inline-block;
}

#meta {
  margin-top: 2rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--stage-muted);
  max-width: 40rem;
  line-height: 1.5;
}

#hint {
  position: fixed;
  bottom: 12px;
  left: 16px;
  z-index: 40;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--stage-muted);
  pointer-events: none;
  opacity: 0.7;
}

/* ── HUDDI chrome host (mirror SynthStation) ─────────────── */

#chrome {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
}

#chrome.huddi {
  pointer-events: none;
}

#topRight {
  position: absolute;
  top: calc(8px * var(--s, 2));
  right: calc(8px * var(--s, 2));
  bottom: calc(8px * var(--s, 2));
  left: calc(8px * var(--s, 2));
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  pointer-events: none;
  z-index: 60;
}

#menu {
  pointer-events: auto;
  margin-top: 0;
  text-align: left;
  width: max-content;
  max-width: min(100%, 22ch);
  max-height: calc(100dvh - 16px * var(--s, 2));
  overflow-y: scroll;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  scrollbar-width: none;
}

#menu::-webkit-scrollbar {
  display: none;
}

#trkStack {
  position: absolute;
  left: calc(8px * var(--s, 2));
  bottom: calc(8px * var(--s, 2));
  pointer-events: none;
  z-index: 60;
}

#trk {
  pointer-events: auto;
  display: flex;
  gap: 1ch;
  align-items: flex-end;
}

#hudChip {
  position: absolute;
  top: calc(8px * var(--s, 2));
  left: calc(8px * var(--s, 2));
  pointer-events: none;
  display: none;
  z-index: 61;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .dof-item,
  .dof-track,
  .ladder-sample {
    transition: none !important;
  }
}

@media (max-width: 720px) {
  #stage {
    grid-template-columns: 1fr;
    grid-template-areas:
      "top"
      "main"
      "left";
    padding-right: clamp(1rem, 3vw, 2rem);
    padding-bottom: 6rem;
    overflow: auto;
  }
  #leftNav {
    margin-top: 2rem;
  }
}