/* ════════════════════════════════════════════════════════════════════
   THE SAMPLE LIBRARY — a catalogue of UI/UX options
   ────────────────────────────────────────────────────────────────────
   Architecture, so this file stays tractable:

   1. Every specimen sits inside `.spec__stage`, which declares a full
      set of `--sp-*` tokens. The stage is its own visual world — it
      does NOT inherit the page's cyanotype palette, because the whole
      point is that the specimens look different from each other.
   2. Components (.sp-btn, .sp-field, .sp-card …) are written ONCE
      against those tokens. A button therefore takes eight forms for
      free — one per direction.
   3. Where a direction needs something tokens can't express (a hard
      offset shadow, scanlines, a gradient backdrop), it gets a small
      targeted override block at the end of its token set.

   Adding a ninth direction = one token block + a handful of overrides.
   Adding a component = one generic block, and it exists in every
   direction at once.
   ════════════════════════════════════════════════════════════════════ */

/* ══════════════════════════════════════════════════════════
   0 · THE EIGHT DIRECTIONS
   ══════════════════════════════════════════════════════════ */

.spec__stage {
  /* fallback set — every direction overrides all of these */
  --sp-bg: #fff;
  --sp-surface: #fff;
  --sp-surface-2: #f4f4f4;
  --sp-fg: #111;
  --sp-mut: #666;
  --sp-acc: #333;
  --sp-acc-fg: #fff;
  --sp-line: rgba(0, 0, 0, .18);
  --sp-line-hard: rgba(0, 0, 0, .9);
  --sp-r: 8px;
  --sp-r-sm: 5px;
  --sp-r-lg: 14px;
  --sp-font: system-ui, sans-serif;
  --sp-display: system-ui, sans-serif;
  --sp-mono: "JetBrains Mono", monospace;
  --sp-label-tr: .08em;
  --sp-label-case: uppercase;
  --sp-label-w: 600;
  --sp-shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 8px 24px -12px rgba(0, 0, 0, .3);
  --sp-shadow-lift: 0 2px 6px rgba(0, 0, 0, .08), 0 18px 40px -16px rgba(0, 0, 0, .38);
  --sp-bw: 1px;
  --sp-ease: cubic-bezier(.22, 1, .36, 1);
  --sp-pad: 28px;
}

/* ── SWISS · international typographic. grid, hairlines, one red ── */
.spec__stage[data-dir="swiss"] {
  --sp-bg: #F1F1EE;
  --sp-surface: #FFFFFF;
  --sp-surface-2: #E6E6E1;
  --sp-fg: #0B0B0A;
  --sp-mut: #6A6A64;
  --sp-acc: #E4002B;
  --sp-acc-fg: #FFFFFF;
  --sp-line: rgba(11, 11, 10, .22);
  --sp-line-hard: #0B0B0A;
  --sp-r: 0px;
  --sp-r-sm: 0px;
  --sp-r-lg: 0px;
  --sp-font: "Space Grotesk", "Helvetica Neue", Inter, system-ui, sans-serif;
  --sp-display: "Space Grotesk", "Helvetica Neue", Inter, system-ui, sans-serif;
  --sp-label-tr: .14em;
  --sp-shadow: none;
  --sp-shadow-lift: none;
  --sp-bw: 1px;
}

/* ── EDITORIAL · magazine. cream stock, serif voice, generous air ── */
.spec__stage[data-dir="editorial"] {
  --sp-bg: #FAF6EE;
  --sp-surface: #FFFDF8;
  --sp-surface-2: #F0E9DA;
  --sp-fg: #1B1613;
  --sp-mut: #6B5F52;
  --sp-acc: #7E2B2B;
  --sp-acc-fg: #FFFDF8;
  --sp-line: rgba(27, 22, 19, .18);
  --sp-line-hard: #1B1613;
  --sp-r: 2px;
  --sp-r-sm: 2px;
  --sp-r-lg: 3px;
  --sp-font: "General Sans", Georgia, serif;
  --sp-display: "Instrument Serif", "Fraunces", Georgia, serif;
  --sp-label-tr: .18em;
  --sp-label-w: 500;
  --sp-shadow: 0 1px 0 rgba(27, 22, 19, .10);
  --sp-shadow-lift: 0 2px 0 rgba(27, 22, 19, .14), 0 22px 40px -28px rgba(27, 22, 19, .5);
  --sp-bw: 1px;
}

/* ── BRUTAL · hard borders, offset shadows, zero blur ── */
.spec__stage[data-dir="brutal"] {
  --sp-bg: #FFFCEF;
  --sp-surface: #FFFFFF;
  --sp-surface-2: #FFE94A;
  --sp-fg: #0A0A0A;
  --sp-mut: #4A4A46;
  --sp-acc: #FF4D00;
  --sp-acc-fg: #0A0A0A;
  --sp-line: #0A0A0A;
  --sp-line-hard: #0A0A0A;
  --sp-r: 0px;
  --sp-r-sm: 0px;
  --sp-r-lg: 0px;
  --sp-font: "JetBrains Mono", ui-monospace, monospace;
  --sp-display: "Archivo", "Space Grotesk", system-ui, sans-serif;
  --sp-label-tr: .06em;
  --sp-label-w: 700;
  --sp-shadow: 4px 4px 0 #0A0A0A;
  --sp-shadow-lift: 7px 7px 0 #0A0A0A;
  --sp-bw: 2.5px;
}

/* ── SOFT · pillowy radii, layered light, calm indigo ── */
.spec__stage[data-dir="soft"] {
  --sp-bg: #F6F4FF;
  --sp-surface: #FFFFFF;
  --sp-surface-2: #EFEBFF;
  --sp-fg: #221B45;
  --sp-mut: #6F6890;
  --sp-acc: #6C5CE7;
  --sp-acc-fg: #FFFFFF;
  --sp-line: rgba(108, 92, 231, .18);
  --sp-line-hard: rgba(108, 92, 231, .45);
  --sp-r: 18px;
  --sp-r-sm: 12px;
  --sp-r-lg: 28px;
  --sp-font: "DM Sans", "General Sans", system-ui, sans-serif;
  --sp-display: "DM Sans", "General Sans", system-ui, sans-serif;
  --sp-label-tr: .04em;
  --sp-shadow: 0 2px 4px rgba(64, 47, 150, .06), 0 12px 28px -12px rgba(64, 47, 150, .28);
  --sp-shadow-lift: 0 4px 10px rgba(64, 47, 150, .10), 0 26px 50px -18px rgba(64, 47, 150, .40);
  --sp-bw: 1px;
}

/* ── TERMINAL · phosphor on carbon, monospace everything ── */
.spec__stage[data-dir="terminal"] {
  --sp-bg: #050807;
  --sp-surface: #0A100D;
  --sp-surface-2: #101A15;
  --sp-fg: #C8F5DF;
  --sp-mut: #5F8C77;
  --sp-acc: #35F0A0;
  --sp-acc-fg: #04150C;
  --sp-line: rgba(53, 240, 160, .28);
  --sp-line-hard: rgba(53, 240, 160, .8);
  --sp-r: 0px;
  --sp-r-sm: 0px;
  --sp-r-lg: 2px;
  --sp-font: "JetBrains Mono", ui-monospace, monospace;
  --sp-display: "JetBrains Mono", ui-monospace, monospace;
  --sp-label-tr: .2em;
  --sp-shadow: 0 0 0 1px rgba(53, 240, 160, .14);
  --sp-shadow-lift: 0 0 24px -4px rgba(53, 240, 160, .45);
  --sp-bw: 1px;
}

/* ── GLASS · translucency over a lit backdrop ── */
.spec__stage[data-dir="glass"] {
  --sp-bg: #1B1040;
  --sp-surface: rgba(255, 255, 255, .10);
  --sp-surface-2: rgba(255, 255, 255, .16);
  --sp-fg: #F4F1FF;
  --sp-mut: rgba(244, 241, 255, .68);
  --sp-acc: #6EE7F9;
  --sp-acc-fg: #06213A;
  --sp-line: rgba(255, 255, 255, .22);
  --sp-line-hard: rgba(255, 255, 255, .5);
  --sp-r: 16px;
  --sp-r-sm: 10px;
  --sp-r-lg: 24px;
  --sp-font: "DM Sans", "General Sans", system-ui, sans-serif;
  --sp-display: "DM Sans", "General Sans", system-ui, sans-serif;
  --sp-label-tr: .1em;
  --sp-shadow: 0 1px 0 rgba(255, 255, 255, .18) inset, 0 12px 40px -14px rgba(0, 0, 0, .7);
  --sp-shadow-lift: 0 1px 0 rgba(255, 255, 255, .3) inset, 0 24px 60px -16px rgba(0, 0, 0, .8);
  --sp-bw: 1px;
}

/* ── LUXE · near-black, champagne hairlines, wide caps ── */
.spec__stage[data-dir="luxe"] {
  --sp-bg: #0C0B09;
  --sp-surface: #131110;
  --sp-surface-2: #1B1815;
  --sp-fg: #F2EDE3;
  --sp-mut: #9A9186;
  --sp-acc: #C9A961;
  --sp-acc-fg: #0C0B09;
  --sp-line: rgba(201, 169, 97, .28);
  --sp-line-hard: rgba(201, 169, 97, .7);
  --sp-r: 0px;
  --sp-r-sm: 0px;
  --sp-r-lg: 1px;
  --sp-font: "General Sans", system-ui, sans-serif;
  --sp-display: "Instrument Serif", "Fraunces", Georgia, serif;
  --sp-label-tr: .3em;
  --sp-label-w: 400;
  --sp-shadow: none;
  --sp-shadow-lift: 0 30px 60px -30px rgba(0, 0, 0, .9);
  --sp-bw: 1px;
}

/* ── NEOPOP · saturated, outlined, unembarrassed ── */
.spec__stage[data-dir="neopop"] {
  --sp-bg: #FFE94A;
  --sp-surface: #FFFFFF;
  --sp-surface-2: #FF5DA2;
  --sp-fg: #14121F;
  --sp-mut: #4B4760;
  --sp-acc: #3D2BFF;
  --sp-acc-fg: #FFFFFF;
  --sp-line: #14121F;
  --sp-line-hard: #14121F;
  --sp-r: 22px;
  --sp-r-sm: 14px;
  --sp-r-lg: 30px;
  --sp-font: "DM Sans", "General Sans", system-ui, sans-serif;
  --sp-display: "Archivo", "DM Sans", system-ui, sans-serif;
  --sp-label-tr: .02em;
  --sp-label-w: 800;
  --sp-shadow: 3px 4px 0 #14121F;
  --sp-shadow-lift: 5px 7px 0 #14121F;
  --sp-bw: 2.5px;
}

/* ══════════════════════════════════════════════════════════
   1 · THE FRAME — how a specimen is presented
   ══════════════════════════════════════════════════════════ */

.library { position: relative; }

.lib-lede { max-width: 62ch; }
.lib-lede p + p { margin-top: var(--s2); }

/* ── the control rail: sticks under the topbar while you browse ── */
.lib-rail {
  position: sticky;
  top: 46px;
  z-index: 40;
  margin: var(--s5) 0 var(--s4);
  padding: var(--s1) 0;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-top: 1.5px solid var(--draft);
  border-bottom: 1.5px solid var(--line);
}
.lib-rail__row {
  display: flex;
  align-items: center;
  gap: var(--s1);
  flex-wrap: wrap;
}
.lib-rail__row + .lib-rail__row { margin-top: var(--s1); }
.lib-rail__label {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  flex: 0 0 auto;
  width: 76px;
}

/* direction chips carry a swatch of the direction they select */
.dirchip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  min-height: 32px;
  border: 1.5px solid var(--line);
  background: transparent;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: border-color var(--t-micro) var(--ease-out),
              background var(--t-micro) var(--ease-out);
}
.dirchip:hover { border-color: var(--draft); background: color-mix(in srgb, var(--draft) 8%, transparent); }
.dirchip[aria-pressed="true"] {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--text);
}
.dirchip__sw {
  width: 22px;
  height: 13px;
  border: 1px solid rgba(128, 128, 128, .45);
  flex: 0 0 auto;
  background: var(--sw, #888);
}
.dirchip__sw--swiss     { --sw: linear-gradient(90deg, #F1F1EE 60%, #E4002B 60%); }
.dirchip__sw--editorial { --sw: linear-gradient(90deg, #FAF6EE 60%, #7E2B2B 60%); }
.dirchip__sw--brutal    { --sw: linear-gradient(90deg, #FFE94A 60%, #0A0A0A 60%); }
.dirchip__sw--soft      { --sw: linear-gradient(90deg, #EFEBFF 60%, #6C5CE7 60%); }
.dirchip__sw--terminal  { --sw: linear-gradient(90deg, #050807 60%, #35F0A0 60%); }
.dirchip__sw--glass     { --sw: linear-gradient(90deg, #1B1040 60%, #6EE7F9 60%); }
.dirchip__sw--luxe      { --sw: linear-gradient(90deg, #0C0B09 60%, #C9A961 60%); }
.dirchip__sw--neopop    { --sw: linear-gradient(90deg, #FFE94A 55%, #3D2BFF 55%); }
.dirchip__sw--all       { --sw: conic-gradient(#E4002B, #7E2B2B, #FFE94A, #6C5CE7, #35F0A0, #6EE7F9, #C9A961, #3D2BFF, #E4002B); }

.lib-rail__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--muted);
  flex: 0 0 auto;
}

/* ── a category block ── */
.rack { margin-top: var(--s6); scroll-margin-top: 120px; }
.rack__head {
  display: flex;
  align-items: baseline;
  gap: var(--s2);
  flex-wrap: wrap;
  padding-bottom: var(--s1);
  border-bottom: 1.5px solid var(--draft);
  margin-bottom: var(--s1);
}
.rack__no {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--accent-ink);
  letter-spacing: .1em;
}
.rack__head h3 {
  font-family: var(--font-display);
  font-size: var(--step-3);
  font-weight: 560;
  letter-spacing: -.01em;
  text-transform: none;
  margin: 0;
}
.rack__q {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--muted);
  text-align: right;
}
.rack__note {
  color: var(--muted);
  max-width: 68ch;
  margin-bottom: var(--s3);
  font-size: var(--step--1);
}

.rack__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: var(--s3);
  align-items: start;
}
.rack__grid--wide { grid-template-columns: repeat(auto-fill, minmax(480px, 1fr)); }
.rack__grid--full { grid-template-columns: 1fr; }

/* ── the specimen card ── */
.spec {
  margin: 0;
  border: 1.5px solid var(--line);
  background: var(--card);
  display: flex;
  flex-direction: column;
  min-width: 0;
  transition: border-color var(--t-micro) var(--ease-out);
}
.spec:hover { border-color: var(--draft); }
.spec.is-out { display: none; }

.spec__stage {
  background: var(--sp-bg);
  color: var(--sp-fg);
  font-family: var(--sp-font);
  padding: var(--sp-pad);
  min-height: var(--stage-h, 200px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 16px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  container-type: inline-size;
}
.spec__stage * { box-sizing: border-box; }
.spec__stage :focus-visible {
  outline: 2px solid var(--sp-acc);
  outline-offset: 2px;
}

/* GLASS needs a lit backdrop to be translucent against */
.spec__stage[data-dir="glass"]::before {
  content: "";
  position: absolute;
  inset: -30%;
  z-index: -1;
  background:
    radial-gradient(42% 46% at 18% 22%, #7C3AED 0%, transparent 62%),
    radial-gradient(40% 42% at 82% 30%, #06B6D4 0%, transparent 60%),
    radial-gradient(46% 50% at 60% 88%, #DB2777 0%, transparent 62%);
  filter: blur(6px);
}
/* TERMINAL gets scanlines + a soft phosphor bloom */
.spec__stage[data-dir="terminal"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, rgba(53, 240, 160, .05) 0 1px, transparent 1px 3px);
}
/* SWISS shows its grid, quietly */
.spec__stage[data-dir="swiss"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(to right, rgba(11, 11, 10, .05) 0 1px, transparent 1px 25%);
}
/* EDITORIAL: laid paper tooth */
.spec__stage[data-dir="editorial"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .5;
  background: repeating-linear-gradient(to bottom, rgba(27, 22, 19, .035) 0 1px, transparent 1px 6px);
}
/* LUXE: a single champagne horizon */
.spec__stage[data-dir="luxe"]::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(80% 50% at 50% 0%, rgba(201, 169, 97, .10), transparent 70%);
}
.spec__stage > * { position: relative; z-index: 1; }

/* ── the caption: what it is, which direction, when to reach for it ── */
.spec__meta {
  padding: 14px 16px 16px;
  border-top: 1.5px solid var(--line);
  background: var(--card-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.spec__top { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.spec__name {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text);
}
.spec__dir {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  padding: 1px 6px;
}
.spec__use {
  margin: 0;
  font-size: var(--step--1);
  line-height: 1.5;
  color: var(--muted);
}
.spec__use b { color: var(--text); font-weight: 600; }

.spec__acts { display: flex; gap: 8px; margin-top: 4px; flex-wrap: wrap; }
.spec__act {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 9px;
  min-height: 28px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color var(--t-micro), border-color var(--t-micro);
}
.spec__act:hover { color: var(--text); border-color: var(--draft); }
.spec__act.is-on { color: var(--accent-ink); border-color: var(--accent); }

/* ══════════════════════════════════════════════════════════
   2 · THE COMPONENT KIT — written once, rendered eight ways
   ══════════════════════════════════════════════════════════ */

.sp-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.sp-col { display: flex; flex-direction: column; gap: 12px; }
.sp-label {
  font-family: var(--sp-mono);
  font-size: 10.5px;
  letter-spacing: var(--sp-label-tr);
  text-transform: var(--sp-label-case);
  font-weight: var(--sp-label-w);
  color: var(--sp-mut);
}
.sp-h {
  font-family: var(--sp-display);
  color: var(--sp-fg);
  margin: 0;
  line-height: 1.12;
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -.015em;
}
.sp-p { margin: 0; font-size: 13.5px; line-height: 1.55; color: var(--sp-mut); }

/* ── buttons ── */
.sp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border: var(--sp-bw) solid var(--sp-line-hard);
  border-radius: var(--sp-r);
  background: var(--sp-acc);
  color: var(--sp-acc-fg);
  font-family: var(--sp-font);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .01em;
  cursor: pointer;
  box-shadow: var(--sp-shadow);
  transition: transform 140ms var(--sp-ease), box-shadow 140ms var(--sp-ease),
              background 140ms var(--sp-ease), color 140ms var(--sp-ease);
}
.sp-btn:hover { box-shadow: var(--sp-shadow-lift); transform: translateY(-1px); }
.sp-btn:active { transform: translateY(0); }
.sp-btn--ghost {
  background: transparent;
  color: var(--sp-fg);
  border-color: var(--sp-line);
  box-shadow: none;
}
.sp-btn--ghost:hover { border-color: var(--sp-line-hard); box-shadow: none; }
.sp-btn--quiet {
  background: transparent;
  border-color: transparent;
  color: var(--sp-mut);
  box-shadow: none;
  padding: 0 10px;
}
.sp-btn--quiet:hover { color: var(--sp-fg); box-shadow: none; }
.sp-btn--sm { min-height: 34px; padding: 0 13px; font-size: 12px; }
.sp-btn[disabled] { opacity: .42; cursor: not-allowed; transform: none; box-shadow: var(--sp-shadow); }

/* direction-specific button behaviour tokens can't express */
.spec__stage[data-dir="brutal"] .sp-btn:hover,
.spec__stage[data-dir="neopop"] .sp-btn:hover { transform: translate(-2px, -2px); }
.spec__stage[data-dir="brutal"] .sp-btn:active,
.spec__stage[data-dir="neopop"] .sp-btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--sp-line-hard); }
.spec__stage[data-dir="swiss"] .sp-btn { text-transform: uppercase; letter-spacing: .1em; font-size: 11.5px; font-weight: 500; }
.spec__stage[data-dir="luxe"] .sp-btn { text-transform: uppercase; letter-spacing: .26em; font-size: 10.5px; font-weight: 400; padding: 0 26px; }
.spec__stage[data-dir="terminal"] .sp-btn { text-transform: uppercase; letter-spacing: .16em; font-size: 11px; }
.spec__stage[data-dir="terminal"] .sp-btn:hover { box-shadow: 0 0 18px -2px var(--sp-acc); }
.spec__stage[data-dir="editorial"] .sp-btn { font-family: var(--sp-display); font-size: 15px; font-weight: 400; letter-spacing: .01em; }
.spec__stage[data-dir="glass"] .sp-btn { backdrop-filter: blur(12px); }
.spec__stage[data-dir="glass"] .sp-btn--ghost { background: rgba(255, 255, 255, .10); }

/* ── fields ── */
.sp-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.sp-input {
  width: 100%;
  min-height: 44px;
  padding: 0 13px;
  border: var(--sp-bw) solid var(--sp-line);
  border-radius: var(--sp-r-sm);
  background: var(--sp-surface);
  color: var(--sp-fg);
  font-family: var(--sp-font);
  font-size: 14px;
  transition: border-color 140ms var(--sp-ease), box-shadow 140ms var(--sp-ease);
}
.sp-input::placeholder { color: var(--sp-mut); opacity: .75; }
.sp-input:focus {
  outline: none;
  border-color: var(--sp-acc);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sp-acc) 26%, transparent);
}
.sp-input--err { border-color: #E5484D; }
.sp-hint { font-size: 11.5px; color: var(--sp-mut); line-height: 1.45; }
.sp-hint--err { color: #E5484D; }
.spec__stage[data-dir="glass"] .sp-input { backdrop-filter: blur(12px); }
.spec__stage[data-dir="terminal"] .sp-input { text-transform: none; }

/* ── surfaces ── */
.sp-card {
  background: var(--sp-surface);
  border: var(--sp-bw) solid var(--sp-line);
  border-radius: var(--sp-r-lg);
  box-shadow: var(--sp-shadow);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}
.spec__stage[data-dir="glass"] .sp-card { backdrop-filter: blur(18px) saturate(1.4); }

.sp-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid var(--sp-line);
  background: var(--sp-surface-2);
  color: var(--sp-fg);
  font-family: var(--sp-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.spec__stage[data-dir="swiss"] .sp-tag,
.spec__stage[data-dir="brutal"] .sp-tag,
.spec__stage[data-dir="luxe"] .sp-tag,
.spec__stage[data-dir="terminal"] .sp-tag { border-radius: 0; }

.sp-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sp-acc); flex: 0 0 auto; }

.sp-avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--sp-surface-2);
  border: var(--sp-bw) solid var(--sp-line);
  display: grid;
  place-items: center;
  font-family: var(--sp-mono);
  font-size: 11px;
  font-weight: 700;
  color: var(--sp-fg);
  flex: 0 0 auto;
}
.spec__stage[data-dir="swiss"] .sp-avatar,
.spec__stage[data-dir="brutal"] .sp-avatar,
.spec__stage[data-dir="luxe"] .sp-avatar { border-radius: 0; }

.sp-rule { height: var(--sp-bw); background: var(--sp-line); border: 0; margin: 0; width: 100%; }

/* ══════════════════════════════════════════════════════════
   3 · MOBILE + MOTION GUARDS
   ══════════════════════════════════════════════════════════ */

@media (max-width: 700px) {
  .rack__grid,
  .rack__grid--wide { grid-template-columns: 1fr; }
  .spec__stage { padding: 20px; }
  .lib-rail { top: 44px; }
  .lib-rail__label { width: 100%; }
  .lib-rail__count { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .sp-btn,
  .sp-input { transition-duration: 1ms; }
  .sp-btn:hover { transform: none; }
}

/* ══════════════════════════════════════════════════════════
   4 · RACK-SPECIFIC COMPONENTS
   Still written once against --sp-* tokens; still eight-way.
   ══════════════════════════════════════════════════════════ */

/* ── rack jump nav ── */
.lib-jump { display: flex; gap: 4px; flex-wrap: wrap; }
.lib-jump a {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: .04em;
  color: var(--muted);
  text-decoration: none;
  padding: 4px 8px;
  min-height: 28px;
  display: inline-flex;
  align-items: center;
  border: 1px solid transparent;
}
.lib-jump a:hover { color: var(--text); border-color: var(--line); }

/* ── fields, extended ── */
.sp-input--line {
  border: 0;
  border-bottom: var(--sp-bw) solid var(--sp-line-hard);
  border-radius: 0;
  background: transparent;
  padding-left: 0;
}
.sp-input--line:focus { box-shadow: 0 1.5px 0 var(--sp-acc); border-bottom-color: var(--sp-acc); }

/* floating label: the label rises when the field has content or focus */
.sp-float { position: relative; display: block; }
.sp-float .sp-input { padding-top: 16px; }
.sp-float label {
  position: absolute;
  left: 13px;
  top: 13px;
  font-size: 14px;
  color: var(--sp-mut);
  pointer-events: none;
  transition: transform 160ms var(--sp-ease), font-size 160ms var(--sp-ease), color 160ms var(--sp-ease);
  transform-origin: left top;
}
.sp-float .sp-input:focus + label,
.sp-float .sp-input:not(:placeholder-shown) + label {
  transform: translateY(-9px) scale(.74);
  color: var(--sp-acc);
}

.sp-prompt { display: flex; align-items: center; gap: 8px; }
.sp-prompt__sig { font-family: var(--sp-mono); color: var(--sp-acc); font-size: 14px; flex: 0 0 auto; }
.sp-caret {
  display: inline-block;
  width: 8px;
  height: 15px;
  background: var(--sp-acc);
  margin-left: 3px;
  vertical-align: -2px;
  animation: sp-blink 1.1s steps(2, start) infinite;
}
@keyframes sp-blink { 50% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .sp-caret { animation: none; } }

/* ── stats, deltas, meters, price ── */
.sp-stat { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.sp-stat b {
  font-family: var(--sp-display);
  font-size: 36px;
  font-weight: 650;
  letter-spacing: -.03em;
  line-height: 1;
  color: var(--sp-fg);
  font-variant-numeric: tabular-nums;
}
.sp-delta { font-family: var(--sp-mono); font-size: 11.5px; letter-spacing: .04em; }
.sp-delta--up { color: #16A06A; }
.sp-delta--down { color: #16A06A; }
.spec__stage[data-dir="terminal"] .sp-delta--up,
.spec__stage[data-dir="terminal"] .sp-delta--down { color: var(--sp-acc); }
.spec__stage[data-dir="luxe"] .sp-delta--up,
.spec__stage[data-dir="luxe"] .sp-delta--down { color: var(--sp-acc); }

.sp-meter {
  height: 8px;
  width: 100%;
  background: var(--sp-surface-2);
  border: var(--sp-bw) solid var(--sp-line);
  border-radius: 999px;
  overflow: hidden;
}
.sp-meter > span { display: block; height: 100%; background: var(--sp-acc); }
.spec__stage[data-dir="swiss"] .sp-meter,
.spec__stage[data-dir="brutal"] .sp-meter,
.spec__stage[data-dir="terminal"] .sp-meter,
.spec__stage[data-dir="luxe"] .sp-meter { border-radius: 0; }

.sp-price {
  font-family: var(--sp-display);
  font-size: 26px;
  color: var(--sp-fg);
  letter-spacing: -.02em;
}
.sp-price span { font-family: var(--sp-font); font-size: 12px; color: var(--sp-mut); letter-spacing: 0; }

/* ── navigation ── */
.sp-topbar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-bottom: 12px;
  border-bottom: var(--sp-bw) solid var(--sp-line);
  flex-wrap: wrap;
}
.sp-brand {
  font-family: var(--sp-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .16em;
  color: var(--sp-fg);
  flex: 0 0 auto;
}
.sp-navlink {
  font-size: 12.5px;
  color: var(--sp-mut);
  text-decoration: none;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.sp-navlink:hover { color: var(--sp-fg); }
.sp-navlink.is-here { color: var(--sp-fg); border-bottom-color: var(--sp-acc); font-weight: 600; }

.sp-shell { display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: start; }
.sp-side { display: flex; flex-direction: column; gap: 4px; }
.sp-sidelink {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  min-height: 36px;
  border-radius: var(--sp-r-sm);
  font-size: 12.5px;
  color: var(--sp-mut);
  text-decoration: none;
}
.sp-sidelink b { margin-left: auto; font-family: var(--sp-mono); font-size: 10.5px; }
.sp-sidelink:hover { background: var(--sp-surface-2); color: var(--sp-fg); }
.sp-sidelink.is-here { background: var(--sp-acc); color: var(--sp-acc-fg); font-weight: 600; }
.sp-sidelink.is-here .sp-dot { background: var(--sp-acc-fg); }
.sp-shell__body {
  background: var(--sp-surface);
  border: var(--sp-bw) solid var(--sp-line);
  border-radius: var(--sp-r);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sp-dock {
  display: flex;
  gap: 4px;
  padding: 7px;
  border-radius: 999px;
  background: var(--sp-surface);
  border: var(--sp-bw) solid var(--sp-line);
  box-shadow: var(--sp-shadow-lift);
  backdrop-filter: blur(18px);
  align-self: center;
}
.sp-dockitem {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 15px;
  min-height: 40px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--sp-mut);
  text-decoration: none;
  white-space: nowrap;
}
.sp-dockitem.is-here { background: var(--sp-acc); color: var(--sp-acc-fg); font-weight: 600; }

.sp-tabs { display: flex; gap: 0; margin-bottom: calc(var(--sp-bw) * -1); flex-wrap: wrap; }
.sp-tab {
  padding: 10px 15px;
  min-height: 42px;
  border: var(--sp-bw) solid var(--sp-line-hard);
  border-bottom-color: var(--sp-line-hard);
  background: var(--sp-surface-2);
  color: var(--sp-mut);
  font-family: var(--sp-font);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .06em;
  cursor: pointer;
  margin-right: calc(var(--sp-bw) * -1);
  position: relative;
}
.sp-tab.is-here {
  background: var(--sp-surface);
  color: var(--sp-fg);
  border-bottom-color: var(--sp-surface);
  z-index: 2;
}
.sp-tabpanel {
  border: var(--sp-bw) solid var(--sp-line-hard);
  background: var(--sp-surface);
  padding: 16px;
  position: relative;
  z-index: 1;
}

.sp-cmd {
  border: var(--sp-bw) solid var(--sp-line-hard);
  background: var(--sp-surface);
  box-shadow: var(--sp-shadow-lift);
}
.sp-cmd__input {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 13px 15px;
  border-bottom: var(--sp-bw) solid var(--sp-line);
  font-family: var(--sp-mono);
  font-size: 14px;
  color: var(--sp-fg);
}
.sp-cmd__list { list-style: none; margin: 0; padding: 6px; display: flex; flex-direction: column; gap: 2px; }
.sp-cmd__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 11px;
  min-height: 36px;
  font-size: 12.5px;
  color: var(--sp-mut);
}
.sp-cmd__list li.is-here { background: var(--sp-acc); color: var(--sp-acc-fg); }
.sp-cmd__list kbd {
  margin-left: auto;
  font-family: var(--sp-mono);
  font-size: 10px;
  border: 1px solid currentColor;
  padding: 1px 5px;
  opacity: .8;
}

.sp-centrenav { display: flex; align-items: center; justify-content: center; gap: 22px; flex-wrap: wrap; }
.spec__stage[data-dir="luxe"] .sp-navlink {
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: 10px;
}

@container (max-width: 420px) {
  .sp-shell { grid-template-columns: 1fr; }
}

/* ══════════════════════════════════════════════════════════
   5 · WING II EXTRAS — toggle, segmented, toast, modal, empty, skeleton
   ══════════════════════════════════════════════════════════ */

.sp-toggle { display: inline-flex; align-items: center; gap: 9px; cursor: pointer; }
.sp-toggle input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.sp-toggle__track {
  width: 38px; height: 22px;
  border-radius: 999px;
  background: var(--sp-surface-2);
  border: var(--sp-bw) solid var(--sp-line);
  position: relative;
  transition: background 140ms var(--sp-ease);
  flex: 0 0 auto;
}
.sp-toggle__track::before {
  content: "";
  position: absolute; top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--sp-fg);
  transition: transform 160ms var(--sp-ease);
}
.sp-toggle input:checked + .sp-toggle__track { background: var(--sp-acc); border-color: var(--sp-acc); }
.sp-toggle input:checked + .sp-toggle__track::before { transform: translateX(16px); background: var(--sp-acc-fg); }
.sp-toggle input:focus-visible + .sp-toggle__track { outline: 2px solid var(--sp-acc); outline-offset: 2px; }
.spec__stage[data-dir="swiss"] .sp-toggle__track,
.spec__stage[data-dir="brutal"] .sp-toggle__track,
.spec__stage[data-dir="luxe"] .sp-toggle__track { border-radius: 0; }
.spec__stage[data-dir="swiss"] .sp-toggle__track::before,
.spec__stage[data-dir="brutal"] .sp-toggle__track::before,
.spec__stage[data-dir="luxe"] .sp-toggle__track::before { border-radius: 0; }

.sp-seg {
  display: inline-flex;
  border: var(--sp-bw) solid var(--sp-line-hard);
  border-radius: var(--sp-r-sm);
  padding: 3px;
  gap: 2px;
  background: var(--sp-surface-2);
}
.sp-seg__opt {
  border: 0;
  background: transparent;
  color: var(--sp-mut);
  font-family: var(--sp-font);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  min-height: 30px;
  border-radius: calc(var(--sp-r-sm) - 3px);
  cursor: pointer;
}
.sp-seg__opt.is-on { background: var(--sp-surface); color: var(--sp-fg); box-shadow: var(--sp-shadow); }

.sp-toast {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--sp-bw) solid var(--sp-line);
  border-radius: var(--sp-r);
  background: var(--sp-surface);
  box-shadow: var(--sp-shadow);
  font-size: 12.5px;
  color: var(--sp-fg);
  width: fit-content;
}

.sp-modal {
  border: var(--sp-bw) solid var(--sp-line-hard);
  border-radius: var(--sp-r-lg);
  background: var(--sp-surface);
  box-shadow: var(--sp-shadow-lift);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 320px;
}
.sp-modal__bar { display: flex; align-items: center; justify-content: space-between; }

.sp-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-align: center;
  padding: 18px;
}
.sp-empty__mark {
  width: 44px; height: 44px;
  border: var(--sp-bw) dashed var(--sp-line);
  border-radius: var(--sp-r);
}

.sp-skel { display: flex; flex-direction: column; gap: 8px; width: 100%; }
.sp-skel span {
  display: block;
  height: 12px;
  width: 100%;
  border-radius: var(--sp-r-sm);
  background: linear-gradient(90deg, var(--sp-surface-2) 25%, var(--sp-line) 37%, var(--sp-surface-2) 63%);
  background-size: 400% 100%;
  animation: sp-shimmer 1.6s ease-in-out infinite;
}
@media (prefers-reduced-motion: reduce) { .sp-skel span { animation: none; } }
@keyframes sp-shimmer { 0% { background-position: 100% 0; } 100% { background-position: -100% 0; } }