/* Noumetic landing page
   Warm paper + ink, one amber accent, display serif for statements, sans for
   reading, mono for machine voice. Motion is choreographed but never blocking. */

:root {
  --paper: #f7f4ee;
  --paper-2: #efeadf;
  --paper-raised: #fffdf8;
  --ink: #17130e;
  --ink-2: #211b14;
  --ink-3: #2c251c;
  --ink-dim: #6e6555;
  --ink-faint: #9a9183;
  --amber: #f2a33c;
  --amber-deep: #c97e18;
  --amber-soft: rgba(242, 163, 60, 0.16);
  --night-dim: #b8ad9b;
  --night-faint: #7d7466;
  --hairline: rgba(23, 19, 14, 0.12);
  --hairline-soft: rgba(23, 19, 14, 0.07);
  --hairline-strong: rgba(23, 19, 14, 0.26);
  --hairline-light: rgba(247, 244, 238, 0.12);
  --hairline-light-strong: rgba(247, 244, 238, 0.24);

  --display: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --shadow-card: 0 1px 0 rgba(23, 19, 14, 0.04), 0 12px 32px -16px rgba(23, 19, 14, 0.22);
  --shadow-float: 0 1px 0 rgba(23, 19, 14, 0.05), 0 40px 90px -40px rgba(23, 19, 14, 0.45);

  --ease-out: cubic-bezier(0.22, 0.8, 0.3, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --nav-height: 68px;
  --section-pad: clamp(96px, 12vw, 176px);
  --radius: 20px;
}

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

html {
  background: var(--paper);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 16px);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv01";
}

h1, h2, h3, p, figure { margin: 0; }
button, input { font: inherit; color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { display: block; max-width: 100%; }
em { font-style: italic; }

::selection { background: var(--amber-deep); color: var(--paper); }
:focus-visible { outline: 2px solid var(--amber-deep); outline-offset: 4px; }
[hidden] { display: none !important; }

/* ── Atmosphere ──────────────────────────────────────────────────────── */

.grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Primitives ──────────────────────────────────────────────────────── */

.shell {
  width: min(100% - 48px, 1240px);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  transform: translateY(-160%);
  background: var(--ink);
  color: var(--paper);
  border-radius: 999px;
  font-size: 13px;
  text-decoration: none;
}
.skip-link:focus { transform: none; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  color: var(--amber-deep);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  line-height: 1.5;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: currentColor;
}

.section-title {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.02;
  text-wrap: balance;
}

.section-intro {
  color: var(--ink-dim);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.6;
  text-wrap: pretty;
}

.btn {
  position: relative;
  min-height: 50px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.28s var(--ease-out), box-shadow 0.28s var(--ease-out),
    background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn__arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

.btn--primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: 0 10px 24px -12px rgba(23, 19, 14, 0.6);
}
.btn--primary:hover {
  background: #000;
  box-shadow: 0 16px 30px -12px rgba(23, 19, 14, 0.7);
}

.btn--ghost {
  background: transparent;
  border-color: var(--hairline-strong);
  color: var(--ink);
}
.btn--ghost:hover {
  border-color: var(--ink);
  background: rgba(23, 19, 14, 0.03);
}

.btn--paper {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--ink);
  box-shadow: 0 16px 40px -16px rgba(242, 163, 60, 0.4);
}
.btn--paper:hover { background: #fff; }

.btn--lg { min-height: 58px; padding: 18px 30px; font-size: 16px; }
.btn--sm { min-height: 40px; padding: 10px 16px; font-size: 13px; }
.btn--block { width: 100%; }

.btn:disabled,
.btn[aria-disabled="true"] { cursor: progress; opacity: 0.6; transform: none; }

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ── Reveal choreography (only hides when JS is running) ─────────────── */

.reveal-item { opacity: 1; transform: none; }

.js .reveal-scene:not(.is-revealed) .reveal-item {
  opacity: 0;
  transform: translateY(28px);
}
.js .reveal-scene .reveal-item {
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
.reveal-scene.is-revealed .reveal-item:nth-child(1) { transition-delay: 0.1s; }
.reveal-scene.is-revealed .reveal-item:nth-child(2) { transition-delay: 0.25s; }
.reveal-scene.is-revealed .reveal-item:nth-child(3) { transition-delay: 0.4s; }
.reveal-scene.is-revealed .reveal-item:nth-child(4) { transition-delay: 0.55s; }
.reveal-scene.is-revealed .reveal-item:nth-child(5) { transition-delay: 0.7s; }

/* Word-by-word headline reveal. JS wraps each word in .w > .w-in */
.w {
  display: inline-block;
  overflow: hidden;
  vertical-align: bottom;
  padding-bottom: 0.14em;
  margin-bottom: -0.14em;
}
.w-in {
  display: inline-block;
  transform: translateY(0);
}
.js .reveal-scene:not(.is-revealed) .w-in {
  transform: translateY(112%);
  opacity: 0;
}
.js .reveal-scene .w-in {
  transition: transform 1s var(--ease-out) calc(var(--i, 0) * 38ms),
    opacity 0.7s ease calc(var(--i, 0) * 38ms);
}

/* Safari: keep the word stagger, but skip translateY (compositor-heavy there). */
html.is-safari .js .reveal-scene:not(.is-revealed) .w-in {
  transform: none;
  opacity: 0;
}
html.is-safari .js .reveal-scene .w-in {
  transition: opacity 0.65s ease calc(var(--i, 0) * 28ms);
}

/* ── Navigation ──────────────────────────────────────────────────────── */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(24px, calc((100vw - 1240px) / 2));
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition: min-height 0.35s var(--ease-out), border-color 0.35s ease, background-color 0.35s ease;
}
@supports not (background: color-mix(in srgb, red 50%, transparent)) {
  .site-nav { background: rgba(247, 244, 238, 0.9); }
}
.site-nav.is-scrolled {
  min-height: 58px;
  border-bottom-color: var(--hairline);
}
.site-nav::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 100%;
  transform-origin: left center;
  transform: scaleX(var(--progress, 0));
  background: var(--amber-deep);
  pointer-events: none;
}

.site-nav__brand {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  line-height: 0;
}
.site-nav__brand img { width: auto; height: 22px; }

.site-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 28px);
  font-size: 14px;
  font-weight: 500;
}
.site-nav__links a,
.language-switch button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-dim);
  text-decoration: none;
  transition: color 0.2s ease;
}
.site-nav__links a:hover,
.language-switch button:hover { color: var(--ink); }
.language-switch { display: inline-flex; margin: 0; }
.language-switch button {
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}
.site-nav__cta { min-height: 42px; padding: 11px 18px; font-size: 14px; }

/* ── Hero ────────────────────────────────────────────────────────────── */

.hero {
  position: relative;
  overflow: clip;
  isolation: isolate;
}
.hero__glow {
  position: absolute;
  inset: -20% -10% auto auto;
  width: 60vw;
  height: 60vw;
  max-width: 900px;
  max-height: 900px;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(242, 163, 60, 0.22), rgba(242, 163, 60, 0.06) 40%, transparent 70%);
  filter: blur(40px);
  pointer-events: none;
  z-index: -1;
}

.hero__grid {
  min-height: calc(100svh - var(--nav-height));
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: clamp(56px, 9vh, 120px) 0 clamp(48px, 7vh, 96px);
}

.hero__title {
  font-family: var(--display);
  font-size: clamp(3rem, 7.4vw, 7.2rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.96;
  text-wrap: balance;
}
.hero__title em { color: var(--amber-deep); }

.hero__kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: clamp(24px, 3.5vh, 36px) 0 0;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.hero__kicker-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber-deep);
  box-shadow: 0 0 0 0 rgba(201, 126, 24, 0.5);
  animation: pulse 2.4s ease-out infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(201, 126, 24, 0.45); }
  70% { box-shadow: 0 0 0 10px rgba(201, 126, 24, 0); }
  100% { box-shadow: 0 0 0 0 rgba(201, 126, 24, 0); }
}

.hero__actions { margin-top: clamp(34px, 5vh, 52px); }

/* Visual: product ontology — class, branches, instances */
.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

.catalog {
  position: relative;
  z-index: 1;
  width: min(100%, 640px);
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.catalog__query {
  align-self: center;
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
  padding: 9px 16px 9px 12px;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: 999px;
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
}
.catalog.is-asking .catalog__query,
.no-js .catalog__query { opacity: 1; transform: none; }
.catalog__query-k {
  flex: 0 0 auto;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--amber-deep);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.catalog__query-v {
  color: var(--ink);
  font-family: var(--display);
  font-size: 17px;
  letter-spacing: -0.015em;
  line-height: 1.25;
  text-wrap: balance;
}

.catalog__tree {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.catalog__root {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 28px;
  padding: 10px 22px 12px;
  background: var(--ink);
  border-radius: 14px;
  color: var(--paper);
  box-shadow: 0 18px 40px -22px rgba(23, 19, 14, 0.55);
}
.catalog__root::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 28px;
  background: var(--hairline-strong);
  transform: translateX(-50%);
  transition: background-color 0.4s ease;
}
.catalog.is-asking .catalog__root::after { background: var(--amber-deep); }
.catalog__root-k {
  color: var(--amber);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.catalog__root-v {
  font-family: var(--display);
  font-size: 20px;
  letter-spacing: -0.02em;
  line-height: 1;
}

.catalog__branches {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: 100%;
  padding-top: 22px;
}
.catalog__branches::before {
  content: "";
  position: absolute;
  top: 0;
  left: 12.5%;
  right: 12.5%;
  height: 1px;
  background: var(--hairline-strong);
  transition: background-color 0.4s ease;
}
.catalog.is-asking .catalog__branches::before { background: var(--amber-deep); }

.catalog__branch {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  min-width: 0;
  padding: 0 6px;
  transition: opacity 0.5s var(--ease-out), filter 0.5s ease;
}
.catalog__branch::before {
  content: "";
  position: absolute;
  top: -22px;
  left: 50%;
  width: 1px;
  height: 22px;
  background: var(--hairline-strong);
  transform: translateX(-50%);
  transition: background-color 0.4s ease;
}
.catalog.is-asking .catalog__branch.is-lit::before { background: var(--amber-deep); }
/* Fade only labels/products — keep connector lines (incl. mobile spine) visible. */
.catalog.is-asking .catalog__branch:not(.is-lit) .catalog__class,
.catalog.is-asking .catalog__branch:not(.is-lit) .catalog__leaves {
  opacity: 0.34;
  filter: grayscale(0.25);
}
.catalog.is-asking .catalog__branch:not(.is-lit)::before,
.catalog.is-asking .catalog__branch:not(.is-lit) .catalog__class::after {
  opacity: 0.35;
}

.catalog__class {
  position: relative;
  padding: 6px 10px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  transition: color 0.35s ease, border-color 0.35s ease, background-color 0.35s ease;
}
/* Vertical stub under classes — no horizontal tick. */
.catalog__class::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 1px;
  height: 10px;
  background: var(--hairline);
  transform: translateX(-50%);
}
.catalog.is-asking .catalog__branch.is-lit .catalog__class {
  border-color: var(--amber-deep);
  background: var(--amber-soft);
  color: var(--amber-deep);
}
.catalog.is-asking .catalog__branch.is-lit .catalog__class::after {
  background: var(--amber-deep);
}

.catalog__leaves {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.catalog__item {
  position: relative;
  width: 72px;
  margin: 0;
  transition: width 0.55s var(--ease-out), opacity 0.45s var(--ease-out), filter 0.45s ease;
}
.catalog.is-asking .catalog__branch.is-lit .catalog__item:not(.is-focus) {
  opacity: 0.55;
}
.catalog__item.is-focus {
  width: 118px;
  z-index: 2;
  opacity: 1;
  filter: none;
}
.catalog__item.is-focus .catalog__frame {
  box-shadow: 0 0 0 1px rgba(201, 126, 24, 0.5), 0 20px 40px -22px rgba(23, 19, 14, 0.45);
}

.catalog__frame {
  overflow: hidden;
  aspect-ratio: 1;
  background: #eceae4;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}
.catalog__frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.catalog__detail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  text-align: center;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}
.catalog.is-asking .catalog__detail,
.no-js .catalog__detail { opacity: 1; transform: none; }
.catalog__path {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.4;
}
.catalog__chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin: 0;
}
.catalog__chips span {
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
}

.category-switch {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 2px 8px;
  margin-top: 18px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.category-switch__label {
  margin: 0;
  color: var(--ink-faint);
  opacity: 0.75;
}
.category-switch__options {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}
.category-switch button {
  min-height: 36px;
  padding: 6px 10px;
  background: transparent;
  border: 0;
  border-radius: 6px;
  color: inherit;
  cursor: pointer;
  font: inherit;
  letter-spacing: inherit;
  text-transform: inherit;
  transition: color 0.2s ease;
}
.category-switch button:hover { color: var(--ink-dim); }
.category-switch button[aria-pressed="true"] { color: var(--ink); }
.category-switch__sep,
.category-switch__more {
  padding: 0 2px;
  color: var(--hairline-strong);
  pointer-events: none;
}
.category-switch__more {
  letter-spacing: 0;
  opacity: 0.7;
}

/* Marquee of assistants */
.marquee {
  position: relative;
  padding: 26px 0 30px;
  border-top: 1px solid var(--hairline);
}
.marquee__label {
  margin-bottom: 16px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.marquee__track {
  display: flex;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__row {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  animation: marquee 46s linear infinite;
}
.marquee__row span {
  padding: 0 34px;
  color: var(--ink-dim);
  font-family: var(--display);
  font-size: clamp(24px, 2.6vw, 34px);
  letter-spacing: -0.01em;
  white-space: nowrap;
  position: relative;
}
.marquee__row span::after {
  content: "";
  position: absolute;
  right: -3px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber-deep);
  translate: 0 -50%;
  opacity: 0.7;
}
@keyframes marquee { to { transform: translateX(-100%); } }

/* ── Problem (the dark beat) ─────────────────────────────────────────── */

.problem {
  position: relative;
  overflow: clip;
  isolation: isolate;
  padding: var(--section-pad) 0;
  background: var(--ink);
  color: var(--paper);
}
.problem__glow {
  position: absolute;
  top: -25%;
  left: -15%;
  width: 70vw;
  height: 70vw;
  max-width: 1000px;
  max-height: 1000px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 163, 60, 0.18), rgba(242, 163, 60, 0.04) 45%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: -1;
}
.problem ::selection { background: var(--amber); color: var(--ink); }

.problem__title {
  max-width: 1080px;
  font-family: var(--display);
  font-size: clamp(2.6rem, 6.4vw, 6.2rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 0.98;
  text-wrap: balance;
}
.problem__title em { color: var(--amber); }

.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: clamp(56px, 8vw, 104px);
}
.compare__card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px 28px 22px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--hairline-light);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.compare__card--with {
  border-color: rgba(242, 163, 60, 0.45);
  box-shadow: 0 0 0 1px rgba(242, 163, 60, 0.12), 0 40px 100px -50px rgba(242, 163, 60, 0.45);
}
.compare__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.compare__tag {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--hairline-light-strong);
  color: var(--night-dim);
}
.compare__card--with .compare__tag {
  border-color: var(--amber);
  color: var(--amber);
}
.compare__meta { color: var(--night-faint); text-transform: none; letter-spacing: 0.02em; }
.compare__q {
  align-self: flex-end;
  max-width: 80%;
  padding: 10px 14px;
  background: rgba(247, 244, 238, 0.1);
  border-radius: 14px 14px 6px 14px;
  color: var(--paper);
  font-size: 14px;
  line-height: 1.45;
}
.compare__a {
  max-width: 92%;
  padding: 12px 16px;
  background: rgba(247, 244, 238, 0.05);
  border-radius: 14px 14px 14px 6px;
  color: var(--night-dim);
  font-size: 15px;
  line-height: 1.55;
}
.compare__card--with .compare__a { color: var(--paper); background: rgba(242, 163, 60, 0.1); }
.compare__foot {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--hairline-light);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.compare__foot--warn { color: var(--night-faint); }
.compare__foot--ok { color: var(--amber); }

.problem__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px 40px;
  margin-top: clamp(56px, 8vw, 96px);
  padding-top: 32px;
  border-top: 1px solid var(--hairline-light);
}
.problem__copy {
  max-width: 620px;
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.015em;
  text-wrap: balance;
}

/* ── System ──────────────────────────────────────────────────────────── */

.system {
  position: relative;
  padding: var(--section-pad) 0;
  background:
    radial-gradient(circle at 50% 40%, transparent 0, transparent 30%, var(--paper) 70%),
    radial-gradient(var(--hairline) 1px, transparent 1.2px) 0 0 / 28px 28px;
}
.system__intro { max-width: 980px; }
.system__intro .section-title { font-size: clamp(2.1rem, 4.2vw, 3.9rem); }
.system__intro .section-intro { max-width: 640px; margin-top: 26px; }

.ns-system { margin-top: clamp(56px, 8vw, 104px); }

.ns-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.ns-diagram {
  position: relative;
  width: min(100%, 600px);
  aspect-ratio: 1;
  margin: 0 auto;
  isolation: isolate;
}
.ns-halo {
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 163, 60, 0.28), rgba(242, 163, 60, 0.08) 45%, transparent 70%);
  filter: blur(24px);
  pointer-events: none;
  z-index: 0;
  transition: opacity 900ms var(--ease-out);
}
.ns-ring {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  opacity: 1;
  transform: scale(1);
  transition: opacity 700ms var(--ease-out), transform 900ms var(--ease-out);
}
.ns-outer-ring { inset: 8%; border: 1px solid var(--hairline); }
.ns-outer-ring::before,
.ns-outer-ring::after {
  content: "";
  position: absolute;
  top: 50%;
  left: -3%;
  width: 106%;
  border-top: 1px solid var(--hairline-soft);
}
.ns-outer-ring::after { transform: rotate(90deg); }
.ns-dash-ring {
  inset: 2%;
  border: 1px dashed var(--hairline);
  animation: spin 120s linear infinite;
}

.ns-outer-arcs {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
}
.ns-outer-arc {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  opacity: 0;
  transition: opacity 200ms ease;
  -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
  mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 2px));
}
.ns-outer-arc-sales { background: conic-gradient(from 0deg, var(--amber-deep) 0deg 86deg, transparent 86deg 274deg, var(--amber-deep) 274deg 360deg); }
.ns-outer-arc-support { background: conic-gradient(from 0deg, var(--amber-deep) 0deg 180deg, transparent 180deg 360deg); }
.ns-outer-arc-internal { background: conic-gradient(from 0deg, transparent 0deg 184deg, var(--amber-deep) 184deg 266deg, transparent 266deg 360deg); }
.ns-system:has(.ns-sales.is-selected) .ns-outer-arc-sales,
.ns-system:has(.ns-sales.is-previewed) .ns-outer-arc-sales,
.ns-system:has(.ns-support.is-selected) .ns-outer-arc-support,
.ns-system:has(.ns-support.is-previewed) .ns-outer-arc-support,
.ns-system:has(.ns-internal.is-selected) .ns-outer-arc-internal,
.ns-system:has(.ns-internal.is-previewed) .ns-outer-arc-internal { opacity: 1; }

/* One continuous band for Sales, Support, and Internal — no sector gaps. */
.ns-sector-ring {
  inset: 25%;
  background: var(--hairline-strong);
  -webkit-mask: radial-gradient(circle, transparent 0 67.2%, #000 67.6% 69.4%, transparent 69.8% 100%);
  mask: radial-gradient(circle, transparent 0 67.2%, #000 67.6% 69.4%, transparent 69.8% 100%);
}

.ns-node {
  position: absolute;
  z-index: 2;
  translate: -50% -50%;
  scale: 1;
  min-height: 42px;
  max-width: 168px;
  padding: 11px 16px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: var(--paper-raised);
  color: var(--ink);
  cursor: pointer;
  box-shadow: var(--shadow-card);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  line-height: 1.2;
  text-align: center;
  opacity: 1;
  transition:
    opacity 650ms var(--ease-out), scale 650ms var(--ease-out),
    color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}
.ns-node:hover,
.ns-node:focus-visible {
  border-color: var(--amber-deep);
  box-shadow: 0 0 0 4px var(--amber-soft), var(--shadow-card);
}
.ns-node:focus-visible { outline: none; }
.ns-node.is-selected,
.ns-node.is-previewed:not(.is-selected) {
  border-color: var(--amber-deep);
  box-shadow: 0 0 0 4px var(--amber-soft), var(--shadow-card);
}
.ns-core {
  top: 50%;
  left: 50%;
  width: 32%;
  max-width: none;
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 18px;
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: 0 30px 60px -30px rgba(23, 19, 14, 0.6);
  font-size: 12px;
  letter-spacing: 0.01em;
}
.ns-core:hover,
.ns-core.is-selected,
.ns-core.is-previewed { border-color: var(--amber); box-shadow: 0 0 0 5px var(--amber-soft), 0 30px 60px -30px rgba(23, 19, 14, 0.6); }

.ns-sales { top: 24%; left: 50%; }
.ns-support { top: 64%; left: 74%; }
.ns-internal { top: 64%; left: 26%; }
.ns-advice { top: 30%; left: 13%; }
.ns-account { top: 30%; left: 87%; }
.ns-support-agent { top: 80%; left: 79%; }
.ns-connector { top: 8%; left: 50%; }
.ns-operations { top: 80%; left: 21%; }

.js .ns-system[data-stage="0"] .ns-node,
.js .ns-system[data-stage="0"] .ns-ring,
.js .ns-system[data-stage="0"] .ns-halo,
.js .ns-system[data-stage="0"] .ns-info { opacity: 0; pointer-events: none; }
.js .ns-system[data-stage="0"] .ns-node { scale: 0.75; }
.js .ns-system[data-stage="0"] .ns-ring { transform: scale(0.75); }

.js .ns-system[data-stage="1"] .ns-sector,
.js .ns-system[data-stage="1"] .ns-agent,
.js .ns-system[data-stage="1"] .ns-ring { opacity: 0; pointer-events: none; }
.js .ns-system[data-stage="1"] .ns-sector,
.js .ns-system[data-stage="1"] .ns-agent { scale: 0.75; }
.js .ns-system[data-stage="1"] .ns-ring { transform: scale(0.75); }

.js .ns-system[data-stage="2"] .ns-agent,
.js .ns-system[data-stage="2"] .ns-outer-ring,
.js .ns-system[data-stage="2"] .ns-dash-ring,
.js .ns-system[data-stage="2"] .ns-outer-arcs { opacity: 0; pointer-events: none; }
.js .ns-system[data-stage="2"] .ns-agent { scale: 0.75; }
.js .ns-system[data-stage="2"] .ns-outer-ring { transform: scale(0.82); }

.ns-info {
  position: relative;
  padding: 32px 32px 32px 36px;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  transition: opacity 500ms var(--ease-out);
}
.ns-info::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 28px;
  bottom: 28px;
  width: 3px;
  border-radius: 3px;
  background: var(--amber-deep);
}
.ns-step {
  margin: 0 0 22px;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}
.ns-info-copy { transition: opacity 180ms ease, transform 180ms ease; }
.ns-info-copy.is-changing { opacity: 0; transform: translateY(8px); }
html.is-safari .ns-info-copy { transition: opacity 120ms ease; }
html.is-safari .ns-info-copy.is-changing { opacity: 0; transform: none; }
.ns-kicker {
  margin: 0 0 12px;
  color: var(--amber-deep);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}
.ns-info h3 {
  margin: 0 0 16px;
  font-family: var(--display);
  font-size: clamp(2rem, 3.3vw, 3.1rem);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1;
  text-wrap: balance;
}
.ns-description {
  max-width: 420px;
  color: var(--ink-dim);
  font-size: 1.02rem;
  line-height: 1.6;
  text-wrap: pretty;
}

/* Safari: skip expensive wrap algorithms during live text swaps. */
html.is-safari .ns-info h3,
html.is-safari .ns-description,
html.is-safari .section-title,
html.is-safari .section-intro,
html.is-safari .hero__title { text-wrap: auto; }
.ns-meta {
  margin: 20px 0 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
}
.ns-replay {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  margin-top: 28px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--hairline-strong);
  border-radius: 999px;
  color: var(--ink);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.ns-replay:hover { border-color: var(--ink); background: rgba(23, 19, 14, 0.03); }
.ns-replay__icon { font-size: 15px; }
.no-js .ns-replay { display: none; }
.ns-short-label,
.ns-mobile-key { display: none; }

.ns-preview { position: relative; margin-top: clamp(40px, 5vw, 64px); }
.ns-preview.is-empty { margin-top: 0; height: 0; overflow: hidden; }
.ns-preview.is-empty + .category-switch { margin-top: 28px; }
.ns-preview:not(.is-empty) + .category-switch { margin-top: 22px; }
.ns-preview-frame {
  position: absolute;
  inset: 0 0 auto;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  pointer-events: none;
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out), visibility 500ms;
}
.ns-preview-frame.is-active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
}

.browser {
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  box-shadow: var(--shadow-float);
  overflow: hidden;
}
.browser__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--hairline);
}
.browser__bar span { width: 9px; height: 9px; border-radius: 50%; background: var(--hairline-strong); }
.browser__bar em {
  margin-left: 12px;
  padding: 4px 12px;
  border-radius: 6px;
  background: var(--paper-raised);
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 11px;
  font-style: normal;
}
.browser img { width: 100%; height: auto; background: #fff; padding: 10px; }

/* ── Quick Setup Plan ────────────────────────────────────────────────── */

.setup {
  padding: var(--section-pad) 0;
  background: var(--paper-2);
  border-top: 1px solid var(--hairline);
}
.setup__heading .section-title { font-size: clamp(2.4rem, 4.6vw, 4.2rem); }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: clamp(44px, 6vw, 72px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}
.step {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform 0.4s var(--ease-out), box-shadow 0.4s var(--ease-out);
}
.step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-float);
}
.step__art {
  position: relative;
  padding: 28px 24px 14px;
  background: var(--paper);
  border-bottom: 1px solid var(--hairline-soft);
}
.qsp-scene { width: 100%; height: 176px; }
.step__ghost {
  position: absolute;
  right: 18px;
  bottom: -14px;
  color: rgba(23, 19, 14, 0.07);
  font-family: var(--display);
  font-size: 108px;
  line-height: 1;
  letter-spacing: -0.04em;
  pointer-events: none;
}
.step__body { padding: 26px 28px 30px; }
.step__label {
  display: block;
  margin-bottom: 14px;
  color: var(--amber-deep);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.step h3 {
  font-family: var(--display);
  font-size: clamp(1.5rem, 2.1vw, 1.9rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.12;
}
.step p {
  margin-top: 12px;
  color: var(--ink-dim);
  font-size: 15px;
  line-height: 1.6;
  text-wrap: pretty;
}

/* SVG palette hooks (presentation attributes cannot read custom properties). */
.q-line { stroke: var(--hairline-strong); }
.q-line-soft { stroke: var(--hairline); }
.q-fill { fill: var(--paper-raised); }
.q-ink { fill: var(--ink); }
.q-dim { fill: rgba(23, 19, 14, 0.2); }
.q-dim-soft { fill: rgba(23, 19, 14, 0.1); }
.q-amber { fill: var(--amber-deep); }
.q-amber-line { stroke: var(--amber-deep); }
.q-paper { fill: var(--paper); }
.q-paper-line { stroke: var(--paper); }

.setup__actions { margin-top: clamp(40px, 5vw, 64px); }

/* ── Callout ─────────────────────────────────────────────────────────── */

.callout {
  position: relative;
  overflow: clip;
  isolation: isolate;
  padding: var(--section-pad) 0;
  background: var(--ink);
  color: var(--paper);
}
.callout__glow {
  position: absolute;
  right: -20%;
  bottom: -40%;
  width: 70vw;
  height: 70vw;
  max-width: 1000px;
  max-height: 1000px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 163, 60, 0.16), rgba(242, 163, 60, 0.03) 45%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: -1;
}
.callout ::selection { background: var(--amber); color: var(--ink); }
.callout__inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  column-gap: clamp(40px, 6vw, 96px);
  row-gap: 0;
  align-items: center;
}
.callout__lead {
  position: relative;
  padding-left: 48px;
  color: var(--night-dim);
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.6;
  text-wrap: pretty;
}
.callout__lead:nth-child(1) { align-self: end; padding-bottom: 14px; }
.callout__lead:nth-child(2) { align-self: start; padding-top: 14px; }
.callout__num {
  position: absolute;
  left: 0;
  top: 0.35em;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
}
.callout__lead:nth-child(1),
.callout__lead:nth-child(2) { grid-column: 1; }
.callout__close {
  grid-column: 2;
  grid-row: 1 / span 2;
  font-family: var(--display);
  font-size: clamp(2.4rem, 4.8vw, 4.6rem);
  letter-spacing: -0.03em;
  line-height: 1.02;
  text-wrap: balance;
}
.callout__close em { color: var(--amber); }

/* ── Closing ─────────────────────────────────────────────────────────── */

.closing {
  position: relative;
  overflow: clip;
  padding: var(--section-pad) 0;
  text-align: center;
}
.closing__rings {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
}
.closing__rings span {
  grid-area: 1 / 1;
  border-radius: 50%;
  border: 1px solid var(--hairline);
  aspect-ratio: 1;
}
.closing__rings span:nth-child(1) { width: min(120vw, 1500px); opacity: 0.5; }
.closing__rings span:nth-child(2) { width: min(90vw, 1100px); border-style: dashed; animation: spin 140s linear infinite; }
.closing__rings span:nth-child(3) { width: min(60vw, 720px); }
.closing__inner { position: relative; max-width: 820px; }
.closing__title {
  font-family: var(--display);
  font-size: clamp(3rem, 7.4vw, 7rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.96;
  text-wrap: balance;
}
.closing__copy {
  margin: 24px auto 0;
  max-width: 560px;
  color: var(--ink-dim);
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
}
.closing__actions { display: flex; justify-content: center; margin-top: 40px; }

.notice {
  display: inline-block;
  padding: 14px 22px;
  border: 1px solid var(--amber-deep);
  border-radius: 999px;
  background: var(--amber-soft);
  color: var(--ink);
  font-size: 15px;
}

/* ── Footer ──────────────────────────────────────────────────────────── */

.site-footer {
  padding: 36px 0;
  border-top: 1px solid var(--hairline);
  background: var(--paper);
  color: var(--ink-dim);
  font-size: 13px;
}
.site-footer__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 32px;
  align-items: center;
}
.site-footer__brand { display: inline-flex; align-items: center; min-height: 44px; line-height: 0; }
.site-footer__brand img { width: auto; height: 18px; }
.site-footer__links { display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; }
.site-footer a { min-height: 44px; display: inline-flex; align-items: center; text-decoration: none; transition: color 0.2s ease; }
.site-footer a:hover { color: var(--ink); }
.site-footer__copy { font-family: var(--mono); font-size: 11px; letter-spacing: 0.06em; }

/* ── Modal (native <dialog>) ─────────────────────────────────────────── */

.modal {
  width: min(480px, calc(100% - 32px));
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  color: var(--ink);
  box-shadow: 0 60px 120px -40px rgba(23, 19, 14, 0.5);
  overflow: auto;
}
.modal::backdrop {
  background: rgba(23, 19, 14, 0.5);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}
.modal[open] { animation: modal-in 0.36s var(--ease-out); }
.modal[open]::backdrop { animation: backdrop-in 0.3s ease; }
@keyframes modal-in { from { opacity: 0; transform: translateY(18px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes backdrop-in { from { opacity: 0; } to { opacity: 1; } }

.modal__form { position: relative; padding: 36px 32px 32px; }
.modal__close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  background: transparent;
  border: 0;
  border-radius: 50%;
  color: var(--ink-faint);
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  transition: color 0.2s ease, background-color 0.2s ease;
}
.modal__close:hover { color: var(--ink); background: var(--paper-2); }
.modal__eyebrow { margin-bottom: 14px; }
.modal__title {
  font-family: var(--display);
  font-size: 2.1rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1;
}
.modal__lead { margin-top: 10px; color: var(--ink-dim); font-size: 15px; line-height: 1.55; }
.modal__fields { display: flex; flex-direction: column; gap: 16px; margin-top: 26px; }
.field { display: block; }
.field__label,
.segmented legend {
  display: block;
  margin-bottom: 7px;
  color: var(--ink-dim);
  font-size: 13px;
  font-weight: 500;
}
.field input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  background: var(--paper);
  border: 1px solid var(--hairline-strong);
  border-radius: 12px;
  color: var(--ink);
  font-size: 16px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}
.field input::placeholder { color: var(--ink-faint); }
.field input:focus {
  outline: none;
  background: var(--paper-raised);
  border-color: var(--ink);
  box-shadow: 0 0 0 4px rgba(23, 19, 14, 0.06);
}
.field input:user-invalid { border-color: var(--amber-deep); }

.segmented { margin: 0; padding: 0; border: 0; min-width: 0; }
.segmented__options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  background: var(--paper-2);
  border-radius: 12px;
}
.segmented label { position: relative; display: block; }
.segmented input { position: absolute; inset: 0; margin: 0; opacity: 0; cursor: pointer; }
.segmented span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 8px 12px;
  border-radius: 9px;
  color: var(--ink-dim);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}
.segmented input:checked + span {
  background: var(--paper-raised);
  color: var(--ink);
  box-shadow: var(--shadow-card);
}
.segmented input:focus-visible + span { outline: 2px solid var(--amber-deep); outline-offset: 2px; }

.modal__legal { color: var(--ink-faint); font-size: 12.5px; line-height: 1.5; }
.modal__legal a { color: var(--ink-dim); text-underline-offset: 3px; }
.modal__error { color: var(--amber-deep); font-size: 13px; line-height: 1.45; }
.modal__submit { margin-top: 4px; }
.modal__success { padding-top: 8px; text-align: center; }
.modal__check {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  background: var(--amber-soft);
  border: 1px solid var(--amber-deep);
  border-radius: 50%;
  color: var(--amber-deep);
  font-size: 22px;
  line-height: 1;
}
.modal__success h2 { font-family: var(--display); font-size: 1.9rem; font-weight: 400; letter-spacing: -0.02em; }
.modal__success p { margin: 10px 0 24px; color: var(--ink-dim); font-size: 15px; }

/* ── Cookie consent ──────────────────────────────────────────────────── */

.cookie-banner {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 300;
  width: min(560px, calc(100% - 40px));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 20px;
  background: var(--paper-raised);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  box-shadow: var(--shadow-float);
  color: var(--ink);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s var(--ease-out), transform 0.4s var(--ease-out);
}
.cookie-banner.is-visible { opacity: 1; transform: none; }
.cookie-banner__title { font-size: 13px; font-weight: 600; }
.cookie-banner__text { margin-top: 4px; color: var(--ink-dim); font-size: 13px; line-height: 1.45; }
.cookie-banner__text a { color: var(--ink); text-underline-offset: 3px; }
.cookie-banner__actions { display: flex; flex: 0 0 auto; gap: 8px; }

/* ── Responsive ──────────────────────────────────────────────────────── */

@media (max-width: 1280px) {
  .catalog { width: min(100%, 580px); }
}

@media (max-width: 1100px) {
  .hero__grid { grid-template-columns: 1fr; gap: 56px; padding-top: 48px; }
  .hero__visual { min-height: 0; padding: 40px 0; }

  .ns-layout { grid-template-columns: 1fr; gap: 36px; }
  .ns-info { max-width: 640px; margin: 0 auto; }

  .callout__inner { grid-template-columns: 1fr; }
  .callout__lead:nth-child(1),
  .callout__lead:nth-child(2) { align-self: auto; }
  .callout__close { grid-column: 1; grid-row: auto; margin-top: 26px; }
}

@media (max-width: 900px) {
  .catalog__branches {
    grid-template-columns: 1fr 1fr;
    row-gap: 44px;
    padding-top: 22px;
  }

  .catalog__root {
    margin-bottom: 28px;
  }

  .catalog__root::after {
    height: 28px;
  }

  /* Top rail: only the top row’s two column centers. */
  .catalog__branches::before {
    left: 25%;
    right: 25%;
  }

  .catalog__branch::before {
    top: -22px;
    height: 22px;
  }

  /*
   * Bottom-row rail + drops (mirrors the top rail, in the row gap).
   * Drawn from column 3 so it can span to column 4’s center.
   */
  .catalog__branch:nth-child(3)::after {
    content: "";
    position: absolute;
    top: -22px;
    left: 50%;
    z-index: 0;
    width: 100%;
    height: 1px;
    background: var(--hairline-strong);
    pointer-events: none;
  }

  .catalog__branch:nth-child(n + 3)::before {
    content: "";
    display: block;
    top: -22px;
    height: 22px;
  }

  /*
   * Middle spine: top rail (center) → bottom rail (center).
   * Anchored on col 1; left:100% is the grid midline.
   * top:-22px starts at the top rail; +44px reaches the bottom rail
   * (22px into the 44px row gap).
   */
  .catalog__branch:nth-child(1)::after {
    content: "";
    position: absolute;
    left: 100%;
    top: -22px;
    z-index: 0;
    width: 1px;
    height: calc(100% + 44px);
    background: var(--hairline-strong);
    transform: translateX(-50%);
    pointer-events: none;
  }

  .compare { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .site-footer__inner { grid-template-columns: 1fr; gap: 12px; justify-items: start; }
  .site-footer__links { justify-content: flex-start; }
}

@media (max-width: 768px) {
  .site-nav__cta { display: none; }
}

@media (max-width: 680px) {
  :root { --nav-height: 60px; }
  .shell { width: min(100% - 40px, 1240px); }
  .site-nav__brand img { height: 20px; }

  .hero__grid { min-height: 0; padding: 56px 0 24px; gap: 44px; }
  .hero__title { font-size: clamp(2.7rem, 13vw, 3.8rem); }
  .actions .btn { flex: 1 1 auto; }
  .hero__visual { padding: 24px 0 12px; min-height: 0; }
  .catalog__item--sat { display: none; }
  .catalog__item { width: 64px; }
  .catalog__item.is-focus { width: 96px; }
  .catalog__query-v { font-size: 15px; white-space: normal; }
  .catalog__class { font-size: 9px; letter-spacing: 0.08em; }
  .catalog__path { font-size: 10px; }
  .marquee { padding: 20px 0 22px; }
  .marquee__row span { padding: 0 22px; }

  .problem__title br { display: none; }
  .compare__card { padding: 22px 20px 18px; }
  .compare__q, .compare__a { max-width: 100%; }

  .ns-node { min-height: 38px; max-width: 128px; padding: 8px 10px; font-size: 11px; }
  .ns-core { width: 36%; padding: 10px; font-size: 10px; }
  .ns-agent { width: 44px; height: 44px; min-height: 44px; padding: 0; font-size: 12px; }
  .ns-full-label { display: none; }
  .ns-short-label { display: inline; }
  .ns-mobile-key {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 18px;
    margin: 18px 0 0;
    padding: 0;
    color: var(--ink-dim);
    font-family: var(--mono);
    font-size: 10px;
    letter-spacing: 0.08em;
    line-height: 1.4;
    list-style: none;
    text-transform: uppercase;
  }
  .ns-info { padding: 26px 22px 26px 26px; }
  .browser img { padding: 6px; }

  .modal__form { padding: 32px 22px 24px; }

  .cookie-banner {
    right: 12px;
    bottom: 12px;
    width: calc(100% - 24px);
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }
  .cookie-banner__actions { justify-content: flex-end; }
}

/* ── Motion & print ──────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js .reveal-scene .reveal-item,
  .js .reveal-scene .w-in { transform: none; }
  .marquee__row { animation: none; }
  .catalog__query { opacity: 1; transform: none; }
  .catalog__detail { opacity: 1; transform: none; }
}

@media print {
  .site-nav, .cookie-banner, .ns-replay, .skip-link, .grain, .marquee { display: none !important; }
  .js .reveal-scene .reveal-item, .js .reveal-scene .w-in { opacity: 1 !important; transform: none !important; }
  .js .ns-system .ns-node, .js .ns-system .ns-ring, .js .ns-system .ns-info { opacity: 1 !important; scale: 1 !important; transform: none !important; }
  .problem, .callout { background: transparent; color: var(--ink); }
}