/* ═══════════════════════════════════════════════════════════════════
   UIPorter Landing — Engineering Terminal
   All mono. Sharp. Schematic. Indigo as structure, not glow.
   ═══════════════════════════════════════════════════════════════════ */

:root {
  --ink-0: #07070b;
  --ink-1: #0c0c12;
  --ink-2: #11111a;
  --ink-3: #181826;
  --ink-4: #20202f;
  --line: #2a2a3e;
  --line-2: #3a3a52;
  --line-soft: rgba(255, 255, 255, 0.05);
  --text: #ececf3;
  --text-dim: #aeaec5;
  --muted: #6f6f8a;
  --faint: #3f3f55;

  --indigo: #7a7aff;
  --indigo-bright: #a4a4ff;
  --indigo-deep: #4848d8;
  --indigo-soft: #2a2a78;
  --indigo-ink: #1a1a40;

  --amber: #ffb84a;
  --green: #7ad97a;
  --pink: #ff7aa8;

  --mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
  --serif: "Instrument Serif", serif;

  --maxw: 1320px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--ink-0);
  color: var(--text);
  font-family: var(--mono);
  font-weight: 400;
  font-size: 13px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(ellipse 70% 40% at 50% 0%, rgba(72, 72, 216, 0.10), transparent 70%),
    var(--ink-0);
  min-height: 100vh;
}

/* hairline ticks */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

::selection { background: var(--indigo-deep); color: white; }

a { color: inherit; }

/* ── IR-Compile reveal (simple fade-up, no IR badge) ─────────────── */
.compile {
  position: relative;
  display: block;
}
.compile-ir { display: none !important; }
.compile-pre > .compile-out {
  opacity: 0;
  transform: translateY(18px);
  transition: none;
}
.compile-compiling > .compile-out,
.compile-done > .compile-out {
  opacity: 1;
  transform: none;
  transition: opacity 620ms cubic-bezier(.2,.7,.2,1), transform 700ms cubic-bezier(.2,.7,.2,1);
}
.compile-ir {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 3;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--indigo-bright);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: calc(100% - 24px);
  padding: 6px 10px;
  border: 1px dashed var(--indigo-soft);
  background: rgba(72, 72, 216, 0.5);
  backdrop-filter: blur(2px);
  border-radius: 2px;
  transition: opacity 280ms ease, transform 280ms ease;
}
.compile-ir .ir-brace { color: var(--indigo); font-weight: 700; padding: 0 4px; }
.compile-ir .ir-text { color: var(--indigo-bright); }

/* phase: pre — hidden */
.compile-pre > .compile-out {
  opacity: 0 !important;
  transform: translateY(18px) !important;
  filter: none !important;
  transition: none !important;
}
@keyframes ir-tokens {
  0%, 100% { background-position: 0 0; }
  50% { background-position: 18px 0; }
}

/* phase: compiling/done — simple fade up */
.compile-compiling > .compile-out,
.compile-done > .compile-out {
  opacity: 1 !important;
  filter: none !important;
  transform: none !important;
  transition: opacity 620ms cubic-bezier(.2,.7,.2,1), transform 700ms cubic-bezier(.2,.7,.2,1) !important;
  animation: none !important;
}
@keyframes compile-flash {
  0% { box-shadow: inset 0 0 0 1px rgba(122,122,255,0.6); }
  100% { box-shadow: inset 0 0 0 1px rgba(122,122,255,0); }
}

/* phase: done */
.compile-done > .compile-ir { opacity: 0; visibility: hidden; }
.compile-done > .compile-out {
  opacity: 1;
  transform: none;
  filter: none;
}

/* ── Type system: all mono, weight does the work ───────────────── */
.h-xl, .h-l, .h-m, .h-s {
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.94;
  margin: 0;
}
.h-xl { font-size: clamp(56px, 9vw, 130px); }
.h-l  { font-size: clamp(40px, 5vw, 68px); }
.h-m  { font-size: clamp(28px, 3vw, 42px); }
.h-s  { font-size: 20px; letter-spacing: -0.02em; line-height: 1.1; }

.h-xl .acc, .h-l .acc { color: var(--indigo-bright); }
.h-xl .dim, .h-l .dim { color: var(--faint); }

/* one tiny touch of serif italic as visual relief */
.serif-i {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* mono micro-label */
.label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}
.label .b { color: var(--indigo-bright); }
.label .dot {
  display: inline-block;
  width: 6px; height: 6px;
  background: var(--indigo);
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  box-shadow: 0 0 0 3px rgba(122, 122, 255, 0.1);
}
.label.bracket::before { content: "["; color: var(--faint); margin-right: 4px; }
.label.bracket::after { content: "]"; color: var(--faint); margin-left: 4px; }

/* tick row */
.ticks {
  display: flex;
  gap: 0;
  height: 6px;
  align-items: center;
}
.ticks span {
  width: 1px;
  height: 6px;
  background: var(--line-2);
  margin-right: 7px;
}
.ticks span:nth-child(5n+1) { height: 10px; background: var(--indigo); }

/* ── Theme swatch preview (hero, constant size) ─────────────────── */
.theme-preview { padding: 16px 18px; min-height: 130px; display: block; }
.theme-swatch-row {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  width: 100%;
}
.theme-swatch {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 6px;
  transition: opacity 320ms ease, transform 320ms cubic-bezier(.2,.7,.2,1);
}
.ts-chip {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  border: 1px solid var(--line-2);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}
.ts-name {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--text);
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.ts-hex {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-transform: lowercase;
}

/* ── End theme swatch ────────────────────────────────────────────── */
.shell {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

section { position: relative; z-index: 1; }

/* ── Top bar ────────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  backdrop-filter: blur(14px);
  background: rgba(7, 7, 11, 0.72);
  border-bottom: 1px solid var(--line-soft);
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.brand .v {
  color: var(--faint);
  font-weight: 400;
  margin-left: 8px;
}
.brand-mark {
  width: 26px;
  height: 26px;
  display: inline-block;
  object-fit: contain;
  flex-shrink: 0;
}
.nav {
  display: flex;
  gap: 24px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
}
.nav a {
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
  position: relative;
}
.nav a:hover { color: var(--indigo-bright); }
.nav a::before {
  content: "§";
  color: var(--faint);
  margin-right: 6px;
}

.cta-mini {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  text-decoration: none;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--ink-2);
  transition: all 0.15s;
}
.cta-mini:hover {
  border-color: var(--indigo);
  background: var(--indigo-ink);
  color: white;
}

/* ── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.18s;
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--indigo);
  color: white;
  border-color: var(--indigo-bright);
}
.btn-primary::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.18), transparent 50%);
}
.btn-primary:hover {
  background: var(--indigo-bright);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover {
  border-color: var(--indigo);
  background: var(--indigo-ink);
}

/* ── Hero ───────────────────────────────────────────────────────── */
.hero {
  padding: 70px 0 100px;
  position: relative;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-head {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.hero h1 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(56px, 8vw, 112px);
  line-height: 0.88;
  letter-spacing: -0.06em;
  margin: 0;
  text-transform: uppercase;
}
.hero h1 .slash { color: var(--faint); }
.hero h1 .acc { color: var(--indigo-bright); }
.hero h1 .ghost {
  -webkit-text-stroke: 1px var(--line-2);
  color: transparent;
}
.hero h1 .scribble {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  color: var(--indigo-bright);
}

.hero-sub {
  max-width: 480px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
}
.cta-row { display: flex; gap: 10px; flex-wrap: wrap; }

.hero-meta {
  display: flex;
  gap: 32px;
  margin-top: 4px;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.hero-meta strong {
  color: var(--text);
  font-weight: 600;
}

/* ── Hero right side stack ─────────────────────────────────────── */
.hero-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ── UI preview strip (wireframe → painted) ─────────────────────── */
.preview-strip {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.preview-strip-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 9px 14px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.ps-label { color: var(--indigo-bright); font-weight: 700; }
.ps-meta { color: var(--muted); margin-right: auto; }
.ps-dots { display: flex; gap: 5px; }
.ps-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--faint);
  padding: 0;
  cursor: pointer;
  transition: all 200ms;
}
.ps-dot.on { background: var(--indigo-bright); border-color: var(--indigo-bright); }
.ps-dot:hover { border-color: var(--indigo); }

.ui-preview {
  padding: 22px;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(72,72,216,0.06), transparent 70%),
    repeating-linear-gradient(45deg, transparent 0, transparent 9px, rgba(122,122,255,0.02) 9px, rgba(122,122,255,0.02) 10px),
    var(--ink-0);
  height: 200px;
  display: grid;
  place-items: center;
}
.up-canvas {
  width: 100%;
  max-width: 400px;
  height: 156px;
  background: rgba(12, 12, 18, 0.6);
  border: 1px dashed var(--line-2);
  border-radius: 4px;
  position: relative;
  box-sizing: border-box;
}
.pv-btn { display: grid; place-items: center; padding: 20px; }
.pv-button {
  font-family: var(--mono);
  font-size: 12px; font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: white;
  background: var(--indigo);
  border: 1px solid var(--indigo-bright);
  border-radius: 3px;
  padding: 14px 36px;
  cursor: default;
  box-shadow: 0 4px 12px -4px rgba(72,72,216,0.5);
}
.pv-button-sm { padding: 8px 18px; font-size: 10px; }

.pv-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 22px;
  justify-content: center;
}
.pv-form-row {
  display: grid;
  grid-template-columns: 84px 1fr;
  align-items: center;
  gap: 12px;
}
.pv-form-lbl {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.pv-form-fld {
  height: 22px;
  display: flex; align-items: center;
  padding: 0 9px;
  background: rgba(20,20,30,0.85);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text);
}
.pv-form-dots { letter-spacing: 0.18em; color: var(--text-dim); }
.pv-form .pv-button {
  align-self: flex-end;
  margin-top: 2px;
}

.pv-colors {
  display: flex;
  align-items: center;
  justify-content: space-around;
  padding: 18px 20px;
  gap: 10px;
}
.pv-sw { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.pv-sw-chip {
  width: 52px; height: 52px;
  border-radius: 6px;
  box-shadow: 0 4px 12px -4px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.15);
}
.pv-sw-name {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.pv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 8px;
  padding: 14px;
}
.pv-cell {
  background: rgba(72,72,216,0.10);
  border: 1px solid var(--indigo-soft);
  border-radius: 3px;
  display: grid;
  place-items: center;
}
.pv-cell-coord {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--indigo-bright);
}
.up-btn {
  position: relative;
  padding: 12px 28px;
  border: 1.5px dashed var(--faint);
  border-radius: 3px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  min-width: 160px;
  text-align: center;
  transition: all 280ms ease;
}
.up-btn-sm { padding: 8px 16px; font-size: 11px; min-width: 100px; justify-self: end; }
.up-skel {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--faint);
  font-size: 10px;
  letter-spacing: 0.2em;
  pointer-events: none;
}
.up-row { display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: 10px; }
.up-lbl { font-family: var(--mono); font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.12em; transition: opacity 280ms; }
.up-fld { height: 26px; border: 1px dashed var(--faint); border-radius: 2px; transition: all 280ms; }
.up-sw {
  width: 50px; height: 50px;
  border-radius: 4px;
  border: 1px dashed var(--faint);
  transition: all 320ms;
}
.up-cell {
  border: 1px dashed var(--faint);
  border-radius: 3px;
  min-height: 38px;
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--muted);
  transition: all 280ms;
}

/* ── Converter (hero right pane) ─────────────────────────────────── */
.converter {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6);
  position: relative;
}
.converter-chrome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 14px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
}
.converter-chrome .lights { display: flex; gap: 6px; }
.converter-chrome .lights span {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--ink-4);
}
.converter-chrome .lights span:nth-child(1) { background: #ff5f57; opacity: 0.7; }
.converter-chrome .lights span:nth-child(2) { background: #febc2e; opacity: 0.7; }
.converter-chrome .lights span:nth-child(3) { background: #28c840; opacity: 0.7; }
.converter-chrome .title {
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.converter-tabs {
  display: flex;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
}
.converter-tab {
  flex: 1;
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.converter-tab.from { border-right: 1px solid var(--line); }
.converter-tab .role {
  color: var(--faint);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.converter-tab .lang {
  color: var(--indigo-bright);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.converter-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 300px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
  position: relative;
}
.converter-body::after {
  content: "→";
  position: absolute;
  left: calc(50% - 0.5px);
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--indigo-bright);
  font-family: var(--mono);
  font-size: 18px;
  background: var(--ink-1);
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  line-height: 1;
  padding-bottom: 2px;
  border-radius: 50%;
  border: 1px solid var(--indigo);
  z-index: 2;
}
.pane {
  padding: 18px 18px;
  white-space: pre;
  overflow: hidden;
  position: relative;
}
.pane.from {
  border-right: 1px solid var(--line);
  background: var(--ink-1);
}
.pane.to {
  background: linear-gradient(180deg, var(--ink-1), rgba(72,72,216,0.04));
}
.caret-bar {
  display: inline-block;
  color: var(--indigo-bright);
  animation: caret-blink 0.9s steps(2) infinite;
}
@keyframes caret-blink {
  to { opacity: 0.3; }
}
.converter-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 16px;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.converter-foot .status {
  display: flex;
  align-items: center;
  gap: 8px;
}
.converter-foot .status-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green);
  animation: portal-pulse 1.6s ease-in-out infinite;
}

/* ── IR pipeline (scroll-jacked) ─────────────────────────────────── */
.ir-outer {
  position: relative;
  height: 320vh;
}
.ir-sticky {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  padding: 32px 32px 36px;
  height: calc(100vh - 56px);
  display: flex;
  flex-direction: column;
  gap: 18px;
  overflow-y: auto;
  overflow-x: hidden;
  max-width: var(--maxw);
  margin: 0 auto;
  box-sizing: border-box;
  z-index: 1;
}
.ir-sticky .section-head { margin-bottom: 12px; }
.ir-sticky .pipe-arena { flex: 1; min-height: 0; }
.pipe-stage-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-bottom: 24px;
}
.pipe-stage {
  padding: 14px 16px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background: var(--ink-1);
  font-family: var(--mono);
  transition: all 320ms ease;
  opacity: 0.42;
}
.pipe-stage.done {
  opacity: 0.68;
  border-color: var(--line-2);
  border-style: solid;
}
.pipe-stage.active {
  opacity: 1;
  border: 1px solid var(--indigo);
  border-style: solid;
  background: linear-gradient(180deg, var(--ink-1), rgba(72,72,216,0.08));
  box-shadow: 0 0 0 3px rgba(72,72,216,0.08);
}
.pipe-stage .ps-num {
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted);
}
.pipe-stage.active .ps-num { color: var(--indigo-bright); }
.pipe-stage .ps-op {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 6px 0 4px;
  color: var(--text);
}
.pipe-stage .ps-note {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.pipe-progress-line {
  grid-column: 1 / -1;
  height: 2px;
  background: var(--line);
  position: relative;
  margin-top: 8px;
}
.pipe-progress-fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: linear-gradient(90deg, var(--indigo-deep), var(--indigo-bright));
  transition: width 240ms ease-out;
}
.pipe-arena {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  flex: 1;
  min-height: 0;
}
.pipe-pane {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.pp-head {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--indigo-bright);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.pp-body {
  padding: 22px 22px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.7;
  flex: 1;
  overflow: auto;
}
.pp-raw, .pp-ast, .pp-emit {
  white-space: pre;
  color: var(--text);
  margin: 0;
}
.pp-ast { color: var(--indigo-bright); font-size: 12px; }
.pp-ir { list-style: none; padding: 0; margin: 0; }
.pp-ir li {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 12px;
}
.pp-ir li span:first-child { color: var(--muted); }
.pp-ir li span:last-child { color: var(--text); font-weight: 600; }
.pp-ir li .amber { color: var(--amber); }

/* Brain — IR node diagram */
.pipe-brain {
  position: relative;
  display: grid;
  place-items: center;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  padding: 24px;
  min-height: 300px;
}
.brain-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.brain-node {
  position: absolute;
  background: var(--ink-2);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 9.5px;
  color: var(--text);
  letter-spacing: 0.04em;
  white-space: nowrap;
  transform: translate(-50%, -50%);
  transition: all 360ms ease;
  z-index: 2;
  max-width: 36%;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brain-node .bn-k { color: var(--muted); }
.brain-node .bn-v { color: var(--indigo-bright); margin-left: 6px; font-weight: 700; }
.brain-node.center {
  background: linear-gradient(180deg, var(--indigo-deep), var(--indigo-ink));
  border-color: var(--indigo-bright);
  padding: 12px 18px;
  font-size: 11px;
  color: white;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  z-index: 3;
  box-shadow: 0 0 0 4px rgba(72,72,216,0.12);
}
.brain-node.center .bn-s {
  display: block;
  font-size: 8px;
  letter-spacing: 0.18em;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  margin-top: 3px;
}
.brain-node.active { border-color: var(--indigo-bright); background: var(--indigo-ink); transform: translate(-50%, -50%) scale(1.05); }

/* ── Naive web (OPT A) ────────────────────────────────────────── */
.naive-web {
  position: relative;
  width: 100%;
  aspect-ratio: 1.05 / 1;
  margin-top: 6px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background:
    repeating-linear-gradient(45deg, transparent 0 7px, rgba(255,122,168,0.025) 7px 8px),
    rgba(255,122,168,0.02);
  overflow: hidden;
}
.naive-web svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.nw-node {
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex; align-items: center; justify-content: center;
  width: 86px; height: 86px;
  border-radius: 50%;
  background: var(--ink-1);
  border: 1.5px solid var(--pink);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  text-align: center;
  z-index: 2;
  box-shadow: 0 0 0 4px rgba(255,122,168,0.06);
}
.nw-count {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 4;
}
.nw-count .big {
  font-size: 38px;
  font-weight: 700;
  color: var(--pink);
  letter-spacing: -0.04em;
  line-height: 1;
  text-transform: none;
}
.nw-formula {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.12em;
  z-index: 4;
}
.nw-formula b { color: var(--pink); }
.feat .compile-out, .ai-card .compile-out, .adapt-tile .compile-out, .why-card .compile-out { height: 100%; }
.feat .feat-inner, .ai-card .ai-inner, .adapt-tile .at-inner, .why-card .why-inner { height: 100%; }

/* ── WhyIR ───────────────────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.why-card {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.why-card .why-inner { padding: 28px 28px 24px; display: flex; flex-direction: column; gap: 16px; }
.why-card .why-tag {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px;
  color: var(--muted); letter-spacing: 0.16em; text-transform: uppercase;
}
.why-card .why-tag .bad { color: var(--pink); }
.why-card .why-tag .good { color: var(--green); }
.why-card h3 {
  font-family: var(--mono); font-weight: 700; font-size: 26px;
  margin: 0; line-height: 1.15; letter-spacing: -0.01em;
}
.why-card h3 .acc { color: var(--indigo-bright); }
.why-card p { color: var(--text-dim); font-size: 13px; margin: 0; }
.why-card.naive { background: linear-gradient(180deg, var(--ink-1), rgba(255,122,168,0.04)); }
.why-card.hub { background: linear-gradient(180deg, var(--ink-1), rgba(72,72,216,0.06)); }
.naive-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 3px;
  margin-top: 6px;
  padding: 12px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background: rgba(255,122,168,0.02);
}
.naive-cell {
  font-family: var(--mono); font-size: 0;
  height: 22px;
  border: 1px solid var(--line);
  background: rgba(255,122,168,0.06);
  position: relative;
}
.naive-cell::after {
  content: "✕";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 11px;
  color: var(--pink);
  opacity: 0.55;
}
.naive-cell.diag {
  background: transparent;
  border-color: transparent;
}
.naive-cell.diag::after { content: "·"; color: var(--faint); opacity: 1; }
.hub-diagram {
  position: relative;
  width: 100%;
  aspect-ratio: 1.05 / 1;
  margin-top: 6px;
  border: 1px dashed var(--line);
  border-radius: 3px;
  background:
    radial-gradient(circle at 50% 50%, rgba(72,72,216,0.10), transparent 55%),
    rgba(72,72,216,0.025);
  overflow: hidden;
}
.hub-count {
  position: absolute;
  top: 12px;
  left: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 4;
}
.hub-count .big {
  font-size: 38px;
  font-weight: 700;
  color: var(--indigo-bright);
  letter-spacing: -0.04em;
  line-height: 1;
  text-transform: none;
}
.hub-formula {
  position: absolute;
  bottom: 12px;
  right: 14px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.12em;
  z-index: 4;
}
.hub-formula b { color: var(--indigo-bright); }
.hub-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.hub-core {
  position: absolute;
  left: 50%; top: 52%;
  transform: translate(-50%, -50%);
  width: 104px; height: 104px;
  border-radius: 50%;
  background: var(--indigo-deep);
  border: 1px solid var(--indigo);
  display: grid; place-items: center; text-align: center;
  z-index: 3;
}
.hub-core::after {
  content: "";
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px dashed rgba(122,122,255,0.22);
}
.hub-core-l { font-family: var(--mono); font-size: 16px; font-weight: 700; color: white; letter-spacing: 0.1em; }
.hub-core-s { font-family: var(--mono); font-size: 8px; color: rgba(255,255,255,0.6); letter-spacing: 0.18em; text-transform: uppercase; margin-top: 3px; }
.hub-leaf {
  position: absolute;
  transform: translate(-50%, -50%);
  background: var(--ink-1);
  border: 1.5px solid var(--indigo);
  border-radius: 50%;
  width: 86px; height: 86px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  text-align: center;
  z-index: 4;
  box-shadow: 0 0 0 4px rgba(72,72,216,0.06);
}
.hub-leaf::before { content: none; }
.why-foot {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 12px; margin-top: auto;
  border-top: 1px dashed var(--line);
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}
.why-foot .bad { color: var(--pink); font-weight: 700; }
.why-foot .good { color: var(--green); font-weight: 700; }

/* ── AI demo ─────────────────────────────────────────────────────── */
.ai-demo {
  margin-bottom: 32px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.ai-demo-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  min-height: 380px;
}
.ai-demo-prompt {
  padding: 24px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, var(--ink-1), var(--ink-2));
  display: flex; flex-direction: column; gap: 20px;
}
.adp-head {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 10px;
  color: var(--indigo-bright); letter-spacing: 0.18em; text-transform: uppercase;
}
.adp-input {
  background: var(--ink-0);
  border: 1px solid var(--line-2);
  border-radius: 3px;
  padding: 16px 18px;
  font-family: var(--mono); font-size: 13.5px;
  line-height: 1.5;
  color: var(--text);
  min-height: 96px;
  display: flex; gap: 8px;
  word-break: break-word;
}
.adp-prefix { color: var(--indigo); flex-shrink: 0; }
.adp-typing { color: var(--text); }
.adp-steps {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: auto;
}
.adp-step {
  display: grid;
  grid-template-columns: 24px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.04em;
  transition: all 240ms ease;
}
.adp-step .sn {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 1px solid var(--faint);
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
  color: var(--muted);
  background: var(--ink-0);
}
.adp-step .sl { color: var(--text-dim); letter-spacing: 0.02em; }
.adp-step .st { font-size: 9px; color: var(--faint); letter-spacing: 0.18em; text-transform: uppercase; }
.adp-step.on { border-color: var(--indigo); color: var(--text); background: rgba(72,72,216,0.08); }
.adp-step.on .sn { background: var(--indigo-bright); color: var(--ink-0); border-color: var(--indigo-bright); }
.adp-step.on .sl { color: var(--text); }
.adp-step.on .st { color: var(--indigo-bright); }
.adp-step.done { border-color: var(--line-2); color: var(--muted); }
.adp-step.done .sn { background: var(--green); color: var(--ink-0); border-color: var(--green); }
.adp-step.done .st { color: var(--green); }

.ai-demo-out {
  display: flex;
  flex-direction: column;
}
.ado-tabs {
  display: flex; align-items: center; gap: 0;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  padding: 0 0 0 16px;
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.14em; text-transform: uppercase;
}
.ado-tab { padding: 12px 14px; color: var(--muted); border-bottom: 1px solid transparent; margin-bottom: -1px; }
.ado-tab.on { color: var(--indigo-bright); border-bottom-color: var(--indigo); font-weight: 700; }
.ado-meta { margin-left: auto; padding: 12px 16px; color: var(--amber); font-weight: 700; }
.ado-stage {
  position: relative;
  flex: 1;
  display: grid; place-items: center;
  background:
    radial-gradient(ellipse 80% 60% at 50% 50%, rgba(72,72,216,0.07), transparent 70%),
    var(--ink-0);
  padding: 28px;
  min-height: 200px;
}
.ado-skeleton {
  position: absolute;
  inset: 28px;
  display: grid;
  grid-template-rows: auto 1fr 1fr auto;
  gap: 8px;
}
.sk { background: var(--ink-2); border: 1px dashed var(--line); border-radius: 2px; opacity: 0.5; }
.sk-1 { height: 14px; width: 70px; }
.sk-3, .sk-2 { min-height: 28px; }
.sk-4 { height: 28px; width: 100px; justify-self: end; }

.glass-card {
  width: 260px;
  padding: 18px 20px;
  background: rgba(31,31,46, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.05);
  opacity: 0;
  transform: translateY(10px) scale(0.96);
  transition: opacity 480ms ease, transform 540ms cubic-bezier(.2,.7,.2,1);
  display: flex; flex-direction: column; gap: 12px;
}
.glass-card.materialised { opacity: 1; transform: none; }
.gc-label { font-family: var(--mono); font-size: 9px; letter-spacing: 0.2em; color: var(--indigo-bright); }
.gc-field, .gc-toggle { display: flex; flex-direction: column; gap: 4px; }
.gc-toggle { flex-direction: row; align-items: center; justify-content: space-between; }
.gc-fl { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; color: var(--text-dim); text-transform: uppercase; }
.gc-fi {
  height: 28px;
  background: rgba(7,7,11,0.6);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 4px;
}
.gc-tg {
  width: 32px; height: 18px;
  background: var(--indigo-deep);
  border-radius: 12px;
  position: relative;
}
.gc-tg-dot {
  position: absolute;
  top: 2px; right: 2px;
  width: 14px; height: 14px;
  background: white;
  border-radius: 50%;
}
.gc-btn {
  margin-top: 4px;
  padding: 9px 0;
  background: linear-gradient(180deg, var(--indigo), var(--indigo-deep));
  border: 1px solid var(--indigo-bright);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  cursor: pointer;
}
.ado-code {
  padding: 16px 18px;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 11.5px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: var(--text-dim);
  min-height: 110px;
}

/* ── Gallery dissolve ────────────────────────────────────────────── */
.gal-stage-body { position: relative; }
.gal-bridge {
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--mono); font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--indigo-bright);
  background: var(--ink-1);
  border: 1px solid var(--indigo);
  border-radius: 14px;
  padding: 4px 10px;
  pointer-events: none;
  opacity: 0;
  animation: bridge-flash 1100ms ease;
  z-index: 4;
}
@keyframes bridge-flash {
  0% { opacity: 0; transform: translate(-50%, -50%) scale(0.6); }
  40% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  80% { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.1); }
}
.gal-dissolve > span {
  display: inline;
  animation: tok-rejoin 600ms ease backwards;
}
.gal-dissolve.to-side > span {
  animation: tok-emit 700ms ease backwards;
}
@keyframes tok-rejoin {
  0% { opacity: 0; filter: blur(3px); transform: translateY(-4px); }
  60% { opacity: 0.6; }
  100% { opacity: 1; filter: blur(0); transform: none; }
}
@keyframes tok-emit {
  0% { opacity: 0; filter: blur(4px); transform: translateX(-6px); }
  100% { opacity: 1; filter: blur(0); transform: none; }
}
.gal-dissolve .gp-label { animation: none; }
.portal-stage {
  position: relative;
  height: 540px;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at center, rgba(122, 122, 255, 0.08), transparent 60%);
}
.portal-stage svg.bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.portal {
  position: absolute;
  top: 50%;
  width: 240px;
  height: 240px;
  transform: translateY(-50%);
}
.portal.left { left: 0; }
.portal.right { right: 0; }

.portal .ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid var(--indigo);
  opacity: 0.35;
}
.portal .ring.r2 { inset: 12px; opacity: 0.55; border-style: dashed; animation: portal-spin 22s linear infinite; }
.portal .ring.r3 { inset: 28px; opacity: 0.85; }
.portal .ring.r4 { inset: 44px; opacity: 0.4; border-style: dotted; animation: portal-spin 14s linear infinite reverse; }
@keyframes portal-spin {
  to { transform: rotate(360deg); }
}

.portal .core {
  position: absolute;
  inset: 60px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 50%, rgba(122, 122, 255, 0.6), rgba(72, 72, 216, 0.35) 45%, rgba(26, 26, 64, 0.7) 75%, transparent 90%);
  box-shadow: 0 0 60px -10px rgba(122, 122, 255, 0.5);
  animation: portal-pulse 4s ease-in-out infinite;
}
@keyframes portal-pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(0.96); opacity: 0.85; }
}

.portal-label {
  position: absolute;
  bottom: -34px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}
.portal-label .lang {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
}
.portal-label .ext {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.portal .tick-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
}
.portal .tick-ring span {
  position: absolute;
  top: 50%; left: 50%;
  width: 1px;
  height: 6px;
  background: var(--indigo);
  transform-origin: 0 100px;
  opacity: 0.5;
}

/* code stream between portals */
.stream {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 280px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--indigo-bright) 40%, var(--indigo-bright) 60%, transparent);
  opacity: 0.5;
}
.packet {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 110px;
  background: var(--ink-1);
  border: 1px solid var(--indigo);
  padding: 6px 10px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--indigo-bright);
  text-align: center;
  border-radius: 2px;
  box-shadow: 0 8px 24px -8px rgba(122, 122, 255, 0.5);
  animation: packet-fly 4s ease-in-out infinite;
  white-space: nowrap;
}
.packet.b { animation-delay: 1.3s; }
.packet.c { animation-delay: 2.6s; }
@keyframes packet-fly {
  0% { transform: translate(calc(-50% - 130px), -50%); opacity: 0; }
  18% { opacity: 1; }
  50% { transform: translate(-50%, -50%); opacity: 1; }
  82% { opacity: 1; }
  100% { transform: translate(calc(-50% + 130px), -50%); opacity: 0; }
}

/* mini converter panel on hero, replaces big editor */
.mini-conv {
  position: absolute;
  width: 230px;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.5;
  overflow: hidden;
  box-shadow: 0 20px 40px -20px rgba(0,0,0,0.7);
}
.mini-conv .mc-head {
  padding: 6px 10px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
}
.mini-conv .mc-head .lang { color: var(--indigo-bright); font-weight: 700; }
.mini-conv .mc-body {
  padding: 10px 12px;
  white-space: pre;
  min-height: 130px;
}

.mini-conv.tl { top: -10px; left: -40px; transform: rotate(-3deg); }
.mini-conv.br { bottom: -10px; right: -40px; transform: rotate(3deg); }

/* ── Section scaffolding ──────────────────────────────────────────── */
.section {
  padding: 110px 0;
  position: relative;
}
.section.tight { padding: 80px 0; }

.section-head {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 60px;
  align-items: start;
  margin-bottom: 60px;
}
.section-head .left {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 6px;
  border-top: 1px solid var(--indigo);
}
.section-head .left .num {
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--indigo-bright);
}
.section-head .left .name {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
}
.section-head h2 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(34px, 4.4vw, 60px);
  line-height: 0.94;
  letter-spacing: -0.04em;
  margin: 0 0 16px;
  text-transform: uppercase;
}
.section-head h2 .acc { color: var(--indigo-bright); }
.section-head h2 .scribble {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  color: var(--indigo-bright);
}
.section-head .lede {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  max-width: 580px;
  margin-top: 14px;
}

/* ── Reveal on scroll ──────────────────────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.8, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal-up.in {
  opacity: 1;
  transform: translateY(0);
}
.r-d1 { transition-delay: 0.08s; }
.r-d2 { transition-delay: 0.18s; }
.r-d3 { transition-delay: 0.28s; }
.r-d4 { transition-delay: 0.38s; }

/* ═════════════════ IR Pipeline ═════════════════════════════════ */
.ir { padding: 130px 0; }
.pipeline-rail {
  position: relative;
  padding: 60px 20px 80px;
  border-top: 1px dashed var(--line);
  border-bottom: 1px dashed var(--line);
}
.pipeline-rail::before, .pipeline-rail::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 1px;
  background: var(--line);
}
.pipeline-rail::before { top: 50%; }

.pipe {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
  position: relative;
}
.node {
  background: var(--ink-1);
  border: 1px solid var(--line);
  padding: 24px;
  position: relative;
  border-radius: 4px;
}
.node.center {
  background: linear-gradient(180deg, var(--indigo-ink), var(--ink-1));
  border-color: var(--indigo);
  transform: scale(1.06);
  z-index: 2;
  box-shadow: 0 0 0 1px var(--indigo-soft), 0 30px 60px -30px rgba(122,122,255,0.3);
}
.node .node-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
}
.node .node-tag .b { color: var(--indigo-bright); }
.node h4 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.04em;
  line-height: 1;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.node h4 em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  color: var(--indigo-bright);
}
.node ul {
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 11px;
}
.node ul li {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px dashed var(--line-soft);
  color: var(--text-dim);
}
.node ul li:last-child { border-bottom: none; }
.node ul li span:last-child { color: var(--indigo-bright); }
.node ul li span.amber:last-child { color: var(--amber); }
.node .node-foot {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.6;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
}

/* pipe transit arrows under each step */
.transit {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin-top: -1px;
}
.transit .op {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--indigo-bright);
  padding: 4px 12px;
  background: var(--ink-0);
  border: 1px solid var(--line);
  border-radius: 2px;
  text-transform: uppercase;
}

/* moving pulses on the pipeline */
.pulse-track {
  position: absolute;
  top: -1px;
  left: 0; right: 0;
  height: 2px;
  overflow: hidden;
  pointer-events: none;
}
.pulse-track::after {
  content: "";
  position: absolute;
  top: 0;
  left: -20%;
  width: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--indigo-bright), transparent);
  animation: pulse-track 3.4s linear infinite;
}
@keyframes pulse-track {
  to { left: 100%; }
}



/* ═════════════════ Features ════════════════════════════════════ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 14px;
}
.feat {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 30px 26px;
  position: relative;
  transition: all 0.25s;
  overflow: hidden;
}
.feat::after {
  content: "";
  position: absolute;
  inset: -1px;
  border: 1px solid transparent;
  border-radius: 4px;
  transition: border-color 0.25s;
  pointer-events: none;
}
.feat:hover {
  background: linear-gradient(180deg, var(--indigo-ink), var(--ink-1));
  transform: translateY(-2px);
}
.feat:hover::after { border-color: var(--indigo); }
.feat .feat-no {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--faint);
  letter-spacing: 0.2em;
  display: flex;
  justify-content: space-between;
}
.feat .feat-no .tag {
  color: var(--indigo-bright);
  border: 1px solid var(--line);
  padding: 2px 7px;
  border-radius: 100px;
  text-transform: uppercase;
  font-size: 9px;
}
.feat h3 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 22px 0 14px;
  text-transform: uppercase;
}
.feat h3 .scribble {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  color: var(--indigo-bright);
}
.feat .feat-desc {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.65;
}
.feat-6 { grid-column: span 6; }
.feat-4 { grid-column: span 4; }
.feat-3 { grid-column: span 3; }
.feat-5 { grid-column: span 5; }
.feat-7 { grid-column: span 7; }
.feat-12 { grid-column: span 12; }
.feat-8 { grid-column: span 8; }


/* feature micro-illustration area */
.feat-art {
  margin-top: 18px;
  padding: 14px;
  background: var(--ink-0);
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  overflow: hidden;
  position: relative;
}

/* ═════════════════ Gallery ═════════════════════════════════════ */
.gallery {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 24px;
  align-items: stretch;
}
.gallery-list { display: flex; flex-direction: column; gap: 6px; }
.gal-item {
  text-align: left;
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 14px 16px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.18s;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}
.gal-item:hover { border-color: var(--indigo); color: var(--text); }
.gal-item .gi-no {
  font-size: 10px;
  color: var(--faint);
  letter-spacing: 0.18em;
}
.gal-item .gi-title {
  font-weight: 600;
  color: var(--text);
  font-size: 13px;
}
.gal-item .gi-arrow {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.gal-item.active {
  background: linear-gradient(180deg, var(--indigo-ink), var(--ink-1));
  border-color: var(--indigo);
  color: var(--text);
}
.gal-item.active .gi-no { color: var(--indigo-bright); }
.gal-item.active .gi-arrow { color: var(--indigo-bright); }

.gal-stage {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.gal-stage-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 20px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.06em;
}
.gal-stage-head .title { color: var(--text); font-weight: 600; }
.flip-btn {
  background: transparent;
  color: var(--indigo-bright);
  border: 1px solid var(--line);
  padding: 6px 14px;
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 10px;
  cursor: pointer;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all 0.15s;
}
.flip-btn:hover { border-color: var(--indigo); background: var(--indigo-ink); }
.gal-stage-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  flex: 1;
}
.gal-pane {
  padding: 22px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre;
  overflow-x: auto;
  min-height: 320px;
  position: relative;
}
.gal-pane.from { border-right: 1px solid var(--line); }
.gal-pane.to { background: linear-gradient(180deg, var(--ink-1), rgba(72,72,216,0.04)); }
.gal-pane .gp-label {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
  font-weight: 500;
}
.gal-pane .gp-label .b { color: var(--indigo-bright); font-weight: 700; }



/* token colors */
.tok-k { color: #c191ff; }
.tok-t { color: #8aa9ff; }
.tok-s { color: #ffb84a; }
.tok-n { color: #7ad97a; }
.tok-f { color: #ff7aa8; }
.tok-c { color: var(--faint); font-style: italic; }
.tok-p { color: var(--text-dim); }

/* ═════════════════ Adapters ════════════════════════════════════ */
.adapt-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 40px;
  align-items: start;
}
.adapt-tiles {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.adapt-tile {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 22px 24px;
  transition: all 0.2s;
}
.adapt-tile .at-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
}
.adapt-tile.ready { border-color: var(--indigo-deep); }
.adapt-tile .at-no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--faint);
  letter-spacing: 0.14em;
}
.adapt-tile .at-name {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  line-height: 1;
}
.adapt-tile .at-name em {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  color: var(--indigo-bright);
}
.adapt-tile .at-meta {
  display: flex;
  gap: 14px;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
}
.adapt-tile .at-meta .ext {
  background: var(--ink-3);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 2px 8px;
  border-radius: 2px;
  text-transform: uppercase;
}
.adapt-tile .at-status {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 100px;
  border: 1px solid var(--line);
}
.adapt-tile .at-status.shipped { color: var(--green); border-color: rgba(122,217,122,0.3); }
.adapt-tile .at-status.planned { color: var(--amber); border-color: rgba(255,184,74,0.3); }
.adapt-tile .at-status.empty   { color: var(--muted); border-style: dashed; }

.code-block {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.code-block .cb-head {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 12px 20px;
  background: var(--ink-2);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
}
.code-block .cb-head .b { color: var(--indigo-bright); }
.code-block pre {
  margin: 0;
  padding: 20px 24px;
  font-family: var(--mono);
  font-size: 11.5px;
  line-height: 1.7;
  overflow-x: auto;
}



/* ═════════════════ AI ══════════════════════════════════════════ */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.ai-card {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}
.ai-card:hover { border-color: var(--indigo); }
.ai-card .ai-head {
  padding: 22px 22px 8px;
}
.ai-card .ai-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--indigo-bright);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.ai-card h3 {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin: 8px 0 0;
  text-transform: uppercase;
}
.ai-card h3 .scribble {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  color: var(--indigo-bright);
}
.ai-card .ai-desc {
  font-size: 13px;
  color: var(--text-dim);
  padding: 14px 22px 22px;
  line-height: 1.6;
  flex: 1;
}
.ai-mock {
  background: var(--ink-0);
  padding: 14px 16px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 11px;
  min-height: 130px;
}
.ai-mock .prompt {
  display: block;
  padding: 8px 10px;
  background: var(--ink-2);
  border-left: 2px solid var(--indigo);
  color: var(--text);
  margin-bottom: 10px;
  border-radius: 0 2px 2px 0;
  line-height: 1.5;
}
.ai-mock .out-line {
  display: block;
  color: var(--text-dim);
  padding-left: 14px;
  position: relative;
  line-height: 1.6;
}
.ai-mock .out-line::before {
  content: "›";
  position: absolute; left: 0;
  color: var(--indigo);
}



/* ═════════════════ Install ═════════════════════════════════════ */
.install {
  position: relative;
  padding: 130px 0;
  text-align: center;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.install::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(122, 122, 255, 0.10), transparent 70%);
  pointer-events: none;
}
.install h2 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(40px, 6vw, 78px);
  line-height: 0.9;
  letter-spacing: -0.05em;
  margin: 18px 0 14px;
  text-transform: uppercase;
}
.install h2 .acc { color: var(--indigo-bright); }
.install h2 .scribble {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  text-transform: none;
  letter-spacing: -0.02em;
  color: var(--indigo-bright);
}
.install p {
  max-width: 540px;
  margin: 0 auto 40px;
  color: var(--text-dim);
  font-size: 14px;
}
.install-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 920px;
  margin: 50px auto 0;
  position: relative;
}
.step {
  background: var(--ink-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 24px 22px;
  text-align: left;
  position: relative;
}
.step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 30%;
  height: 1px;
  background: var(--indigo);
}
.step .n {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
  color: var(--indigo-bright);
  letter-spacing: 0.18em;
}
.step h4 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.03em;
  margin: 14px 0 6px;
  text-transform: uppercase;
}
.step .desc { font-size: 12px; color: var(--text-dim); margin: 0 0 12px; }
.step code {
  display: block;
  background: var(--ink-0);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--indigo-bright);
  white-space: pre-wrap;
  word-break: break-all;
}
.step code .step-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed rgba(122, 122, 255, 0.4);
  padding-bottom: 1px;
  transition: all 0.2s ease;
}
.step code .step-link:hover {
  border-bottom-color: var(--indigo-bright);
  color: #fff;
  text-shadow: 0 0 8px rgba(122, 122, 255, 0.4);
}


/* ═════════════════ Footer ══════════════════════════════════════ */
.foot {
  padding: 80px 0 40px;
  border-top: 1px solid var(--line-soft);
}
.foot-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 50px;
}
.foot h5 {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0 0 16px;
}
.foot a {
  display: block;
  color: var(--text-dim);
  text-decoration: none;
  padding: 5px 0;
  font-size: 12px;
  transition: color 0.15s;
}
.foot a:hover { color: var(--indigo-bright); }
.foot-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 38px;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.foot-brand-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}
.foot-brand .acc { color: var(--indigo-bright); }
.foot-brand-sub {
  color: var(--text-dim);
  font-size: 13px;
  max-width: 320px;
  line-height: 1.6;
}
.foot-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 22px;
  border-top: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}


/* ── Smaller screens ─────────────────────────────────────────────── */

/* ── Medium: 1400px — first things to flex ───────────────────────── */
@media (max-width: 1400px) {
  .section-head { grid-template-columns: 180px 1fr; gap: 40px; }
  .nw-node, .hub-leaf { width: 68px; height: 68px; font-size: 9px; }
  .hub-core { width: 88px; height: 88px; }
  .hub-core-l { font-size: 14px; }
  .converter-body { min-height: 260px; }
  .pipe-stage .ps-op { font-size: 16px; }
  .ai-demo-grid { min-height: 340px; }
}

/* ── 1080px — stacking begins ────────────────────────────────────── */
@media (max-width: 1080px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .topbar .nav { display: none; }
  .portal-stage { height: 420px; }
  .section-head { grid-template-columns: 1fr; gap: 20px; }
  .features-grid { gap: 10px; }
  .feat-6, .feat-4, .feat-3, .feat-5, .feat-7, .feat-8 { grid-column: span 12; }
  .pipe { grid-template-columns: 1fr; }
  .node.center { transform: none; }
  .adapt-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }

  /* IR pipeline fixes */
  .ir-outer { height: 280vh; }
  .ir-sticky { padding: 24px 24px 28px; }
  .pipe-stage-row { grid-template-columns: repeat(4, 1fr); gap: 10px; }
  .pipe-stage .ps-op { font-size: 14px; }
  .pipe-stage .ps-note { font-size: 9px; }
  .pipe-arena { grid-template-columns: 1fr; gap: 18px; }
  .pipe-brain { min-height: 240px; }

  /* Why-IR */
  .why-grid { grid-template-columns: 1fr; }
  .nw-node, .hub-leaf { width: 72px; height: 72px; font-size: 9px; }
  .hub-core { width: 90px; height: 90px; }

  /* AI demo */
  .ai-demo-grid { grid-template-columns: 1fr; min-height: auto; }
  .ai-demo-prompt { border-right: none; border-bottom: 1px solid var(--line); }

  /* Gallery */
  .gallery { grid-template-columns: 200px 1fr; gap: 16px; }

  /* Section padding */
  .section { padding: 80px 0; }
  .install { padding: 90px 0; }
}

/* ── 900px — mostly single-column ────────────────────────────────── */
@media (max-width: 900px) {
  .shell { padding: 0 20px; }

  .gallery { grid-template-columns: 1fr; }
  .gal-stage-body { grid-template-columns: 1fr; }
  .gal-pane.from { border-right: none; border-bottom: 1px solid var(--line); }
  .gal-pane { min-height: 220px; }

  /* IR pipeline */
  .pipe-stage-row { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .ir-outer { height: 250vh; }
  .ir-sticky { height: auto; min-height: calc(100vh - 56px); }

  /* Converter */
  .converter-body { grid-template-columns: 1fr; min-height: auto; }
  .converter-body::after { display: none; }
  .pane.from { border-right: none; border-bottom: 1px solid var(--line); }
  .pane { padding: 14px; white-space: pre-wrap; word-break: break-word; }

  /* Diagrams */
  .nw-node, .hub-leaf { width: 58px; height: 58px; font-size: 8px; }
  .hub-core { width: 74px; height: 74px; }
  .hub-core-l { font-size: 13px; }
  .hub-core-s { font-size: 7px; }
  .nw-count .big, .hub-count .big { font-size: 28px; }

  /* Brain nodes */
  .brain-node { font-size: 9px; padding: 4px 7px; max-width: 42%; }
  .brain-node.center { padding: 9px 14px; font-size: 10px; }

  /* Hero */
  .hero { padding: 50px 0 70px; }
  .hero h1 { font-size: clamp(40px, 10vw, 80px); }
  .hero-meta { flex-wrap: wrap; gap: 16px; }

  /* Footer */
  .foot-grid { grid-template-columns: 1fr; gap: 32px; }
  .foot-brand { font-size: 28px; }

  /* Section head */
  .section-head h2 { font-size: clamp(28px, 5vw, 48px); }
  .section-head .lede { font-size: 13px; }

  /* Install */
  .install h2 { font-size: clamp(32px, 7vw, 56px); }
  .install-steps { grid-template-columns: 1fr; }

  /* Adapter tiles */
  .adapt-tile .at-inner { grid-template-columns: auto 1fr; gap: 14px; }
  .adapt-tile .at-status { grid-column: 1 / -1; justify-self: start; }
  .adapt-tile .at-name { font-size: 18px; }
}

/* ── 600px — phone-ish ───────────────────────────────────────────── */
@media (max-width: 600px) {
  .shell { padding: 0 14px; }
  .topbar { padding: 10px 14px; }
  .cta-mini { font-size: 10px; padding: 6px 10px; }
  .cta-mini svg { display: none; }

  .hero { padding: 36px 0 50px; }
  .hero h1 { font-size: clamp(32px, 12vw, 56px); }
  .hero-sub { font-size: 13px; }
  .cta-row { flex-direction: column; }
  .btn { padding: 12px 18px; font-size: 11px; width: 100%; justify-content: center; }

  .section { padding: 60px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: clamp(24px, 6vw, 36px); }

  /* IR pipeline */
  .pipe-stage-row { grid-template-columns: 1fr 1fr; gap: 6px; }
  .pipe-stage { padding: 10px 12px; }
  .pipe-stage .ps-op { font-size: 12px; }
  .ir-outer { height: 220vh; }

  .pp-body { padding: 14px; font-size: 11px; }
  .pp-raw, .pp-ast, .pp-emit { white-space: pre-wrap; word-break: break-word; }

  /* Diagrams — shrink circles more */
  .nw-node, .hub-leaf { width: 46px; height: 46px; font-size: 7px; }
  .hub-core { width: 60px; height: 60px; }
  .hub-core-l { font-size: 11px; }
  .hub-core::after { inset: -8px; }
  .nw-count .big, .hub-count .big { font-size: 22px; }
  .why-card .why-inner { padding: 20px 18px 18px; }
  .why-card h3 { font-size: 20px; }

  /* Brain */
  .brain-node { font-size: 8px; padding: 3px 5px; }
  .brain-node .bn-v { margin-left: 4px; }
  .brain-node.center { padding: 8px 12px; font-size: 9px; }
  .pipe-brain { min-height: 200px; padding: 16px; }

  /* Features */
  .feat { padding: 22px 18px; }
  .feat h3 { font-size: 18px; }
  .feat .feat-desc { font-size: 12px; }

  /* AI */
  .adp-input { font-size: 12px; padding: 12px 14px; min-height: 72px; }
  .ado-stage { padding: 18px; min-height: 160px; }
  .glass-card { width: 220px; padding: 14px 16px; }
  .ado-code { font-size: 10px; padding: 12px 14px; min-height: 90px; }

  /* Gallery */
  .gal-pane { padding: 14px; font-size: 11px; min-height: 180px; }

  /* Install */
  .install { padding: 60px 0; }
  .install h2 { font-size: clamp(26px, 8vw, 44px); }
  .step { padding: 18px 16px; }
  .step h4 { font-size: 16px; }
  .step code { font-size: 10px; padding: 8px 10px; }

  /* Footer */
  .foot { padding: 50px 0 30px; }
  .foot-brand { font-size: 22px; }
  .foot-bottom { flex-direction: column; gap: 8px; }
}

@media (max-height: 850px) {
  .ir-sticky { padding: 16px 20px 20px; gap: 12px; }
  .ir-sticky .section-head { margin-bottom: 20px; }
  .ir-sticky .section-head h2 { font-size: clamp(28px, 4vw, 44px); margin-bottom: 8px; }
  .ir-sticky .pipe-stage-row { padding-bottom: 12px; }
  .ir-sticky .pipe-arena { gap: 16px; }
  .ir-sticky .pipe-pane .pp-body { padding: 14px 16px; font-size: 11px; }
  .ir-sticky .pipe-brain { padding: 16px; min-height: 240px; }
}