/* ==========================================================================
   Weft — material intelligence for apparel
   Design tokens
   ========================================================================== */

:root {
  /* Colour — editorial fashion: paper, ink, indigo dye, selvedge red */
  --ink:        #17171b;
  --ink-soft:   #2a2a30;
  --paper:      #fcfbf8;
  --bone:       #f0ede6;
  --bone-deep:  #e5e1d8;
  --slate:      #6b6a66;
  --slate-lite: #67655f;
  --indigo:     #23304e;
  --indigo-lit: #35486f;
  --selvedge:   #b3332c;
  --line:       rgba(23, 23, 27, 0.12);
  --line-soft:  rgba(23, 23, 27, 0.07);
  --line-dark:  rgba(252, 251, 248, 0.16);

  /* Type */
  --display: "Instrument Serif", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --body:    "Archivo", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  /* Scale */
  --step--1: clamp(0.82rem, 0.80rem + 0.10vw, 0.88rem);
  --step-0:  clamp(1rem, 0.97rem + 0.14vw, 1.08rem);
  --step-1:  clamp(1.18rem, 1.10rem + 0.36vw, 1.38rem);
  --step-2:  clamp(1.45rem, 1.28rem + 0.78vw, 1.95rem);
  --step-3:  clamp(1.9rem, 1.55rem + 1.6vw, 2.9rem);
  --step-4:  clamp(2.5rem, 1.85rem + 3.0vw, 4.4rem);
  --step-5:  clamp(3.1rem, 2.0rem + 5.0vw, 6.2rem);

  /* Space */
  --gutter: clamp(1.25rem, 0.9rem + 1.6vw, 2.5rem);
  --section: clamp(4.5rem, 3rem + 6vw, 8.5rem);
  --wrap: 1180px;

  --radius: 4px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ==========================================================================
   Reset & base
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: var(--step-0);
  line-height: 1.62;
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; display: block; }

a { color: inherit; text-decoration: none; }

button { font: inherit; }

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 400;
  letter-spacing: -0.018em;
  line-height: 1.06;
  margin: 0;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

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

:focus-visible {
  outline: 2px solid var(--selvedge);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.75rem 1.25rem;
  z-index: 200;
}
.skip:focus { left: 0; }

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap-narrow {
  width: 100%;
  max-width: 760px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.band { padding-block: var(--section); }
.band-tight { padding-block: clamp(3rem, 2rem + 4vw, 5.5rem); }
.band-bone { background: var(--bone); }
.band-ink { background: var(--ink); color: var(--paper); }
.band-ink h1, .band-ink h2, .band-ink h3 { color: var(--paper); }
.band-rule { border-top: 1px solid var(--line); }

.grid { display: grid; gap: clamp(1.5rem, 1rem + 2vw, 3rem); }
.g-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 900px) {
  .g-3, .g-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .g-2, .g-3, .g-4 { grid-template-columns: minmax(0, 1fr); }
}

/* ==========================================================================
   Type utilities
   ========================================================================== */

.eyebrow {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0 0 1.5rem;
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--selvedge);
  flex: none;
}
.band-ink .eyebrow { color: rgba(252, 251, 248, 0.68); }

.h-xl { font-size: var(--step-5); line-height: 0.98; letter-spacing: -0.03em; }
.h-lg { font-size: var(--step-4); line-height: 1.02; letter-spacing: -0.026em; }
.h-md { font-size: var(--step-3); }
.h-sm { font-size: var(--step-2); }
.h-xs { font-size: var(--step-1); letter-spacing: -0.012em; }

.lede {
  font-size: var(--step-1);
  line-height: 1.5;
  color: var(--slate);
  max-width: 46ch;
  font-weight: 400;
}
.band-ink .lede { color: rgba(252, 251, 248, 0.7); }

.muted { color: var(--slate); }
.band-ink .muted { color: rgba(252, 251, 248, 0.62); }

.mono-note {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.05em;
  color: var(--slate-lite);
  text-transform: uppercase;
}

em.ital { font-family: var(--display); font-style: italic; }

.stack > * + * { margin-top: 1.1rem; }
.stack-lg > * + * { margin-top: 2rem; }

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  padding: 0.82rem 1.45rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 200ms var(--ease), color 200ms var(--ease),
              border-color 200ms var(--ease), transform 200ms var(--ease);
  white-space: nowrap;
}

.btn-solid {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-solid:hover { background: var(--indigo); border-color: var(--indigo); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--ink); background: rgba(23, 23, 27, 0.03); }

.btn-invert {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--paper);
}
.btn-invert:hover { background: var(--bone); border-color: var(--bone); }

.btn-outline-invert {
  background: transparent;
  color: var(--paper);
  border-color: var(--line-dark);
}
.btn-outline-invert:hover { border-color: var(--paper); }

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-weight: 500;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: border-color 180ms var(--ease), gap 180ms var(--ease);
}
.link-arrow:hover { border-color: var(--selvedge); gap: 0.75rem; }
.link-arrow span[aria-hidden] { color: var(--selvedge); }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(252, 251, 248, 0.9);
  backdrop-filter: saturate(1.2) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 220ms var(--ease), background 220ms var(--ease);
}
.site-header.is-stuck { border-bottom-color: var(--line); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  flex: none;
}
.brand-mark { width: 26px; height: 26px; }
.brand-word {
  font-family: var(--display);
  font-size: 1.42rem;
  letter-spacing: -0.02em;
  line-height: 1;
  padding-top: 2px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
}
.nav a {
  font-size: 0.9rem;
  font-weight: 450;
  color: var(--slate);
  padding-block: 0.35rem;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--selvedge); }

.header-cta { display: flex; align-items: center; gap: 0.6rem; flex: none; }
.header-cta .btn { padding: 0.62rem 1.1rem; font-size: 0.86rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 42px;
  height: 38px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 17px;
  height: 1.5px;
  background: var(--ink);
  position: relative;
  transition: background 160ms var(--ease);
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 17px;
  height: 1.5px;
  background: var(--ink);
  transition: transform 220ms var(--ease);
}
.nav-toggle span::before { top: -5.5px; }
.nav-toggle span::after { top: 5.5px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-5.5px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav, .header-cta { display: none; }
  .nav-toggle { display: flex; }

  .nav.is-open {
    display: flex;
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.5rem;
    margin-left: 0;
  }
  .nav.is-open a {
    padding: 0.95rem 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--line-soft);
  }
  .nav.is-open .nav-mobile-cta {
    margin-top: 1.25rem;
    border: 0;
    padding: 0;
  }
  .nav.is-open .nav-mobile-cta .btn { width: 100%; }
}

.nav-mobile-cta { display: none; }
@media (max-width: 900px) { .nav.is-open .nav-mobile-cta { display: block; } }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding-block: clamp(3.5rem, 2rem + 6vw, 7rem) clamp(3.5rem, 2rem + 5vw, 6rem);
  overflow: hidden;
}

.hero-weave {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.9;
  pointer-events: none;
  background-image: url("../img/weave.svg");
  background-size: 420px;
  background-position: top right;
  background-repeat: no-repeat;
  mask-image: linear-gradient(to bottom left, rgba(0,0,0,0.9), transparent 70%);
  -webkit-mask-image: linear-gradient(to bottom left, rgba(0,0,0,0.9), transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 1rem + 4vw, 4.5rem);
  align-items: center;
}

@media (max-width: 980px) {
  .hero-inner { grid-template-columns: minmax(0, 1fr); }
}

.hero-copy .h-xl { margin-bottom: 1.5rem; }
.hero-copy .lede { margin-bottom: 2.25rem; max-width: 44ch; }

.hero-foot {
  margin-top: 2.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 2rem;
}
.hero-foot p { font-size: 0.85rem; color: var(--slate); }

/* ==========================================================================
   Reading card — the signature element
   ========================================================================== */

.reading {
  background: var(--ink);
  color: var(--paper);
  border-radius: 6px;
  padding: clamp(1.5rem, 1rem + 2vw, 2.25rem);
  box-shadow: 0 30px 70px -40px rgba(23, 23, 27, 0.6);
  position: relative;
  overflow: hidden;
}
.reading::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--selvedge);
}

.reading-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--line-dark);
  margin-bottom: 1.35rem;
}
.reading-head .mono-note { color: rgba(252, 251, 248, 0.5); }
.reading-title {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--paper);
}

.reading-row {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1rem;
  padding-block: 0.62rem;
  font-family: var(--mono);
  font-size: 0.9rem;
}
.reading-row + .reading-row { border-top: 1px solid rgba(252, 251, 248, 0.08); }
.reading-fibre { color: rgba(252, 251, 248, 0.86); letter-spacing: 0.02em; }
.reading-val { display: flex; align-items: baseline; gap: 0.5rem; }
.reading-pct { font-variant-numeric: tabular-nums; font-size: 1.02rem; }
.reading-err { color: rgba(252, 251, 248, 0.58); font-size: 0.76rem; }

.reading .muted { color: rgba(252, 251, 248, 0.7); }

.reading-bar {
  height: 3px;
  background: rgba(252, 251, 248, 0.13);
  margin-top: 1.35rem;
  display: flex;
  border-radius: 2px;
  overflow: hidden;
}
.reading-bar i { display: block; height: 100%; }
.reading-bar i:nth-child(1) { background: #d8d2c4; }
.reading-bar i:nth-child(2) { background: var(--indigo-lit); }
.reading-bar i:nth-child(3) { background: var(--selvedge); }

.reading-verdict {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-dark);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.reading-flag {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--selvedge);
  padding: 0.28rem 0.55rem;
  border-radius: 2px;
  flex: none;
  margin-top: 2px;
}
.reading-verdict p {
  font-size: 0.86rem;
  line-height: 1.5;
  color: rgba(252, 251, 248, 0.72);
}
.reading-verdict strong { color: var(--paper); font-weight: 500; }

/* ==========================================================================
   Proof strip
   ========================================================================== */

.proof {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(2rem, 1.5rem + 1.5vw, 3rem);
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 2rem;
}
@media (max-width: 860px) { .proof-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .proof-grid { grid-template-columns: minmax(0, 1fr); } }

.proof-item h3 {
  font-family: var(--body);
  font-size: 0.95rem;
  font-weight: 550;
  letter-spacing: 0;
  line-height: 1.4;
  margin-bottom: 0.4rem;
}
.proof-item p { font-size: 0.88rem; color: var(--slate); line-height: 1.55; }
.proof-item { border-left: 2px solid var(--bone-deep); padding-left: 1.1rem; }
.proof-item:first-child { border-left-color: var(--selvedge); }

/* ==========================================================================
   Section head
   ========================================================================== */

.sec-head { max-width: 720px; margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4rem); }
.sec-head .lede { margin-top: 1.25rem; max-width: 56ch; }

.sec-head-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 1rem + 3vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4rem);
}
@media (max-width: 820px) {
  .sec-head-split { grid-template-columns: minmax(0, 1fr); align-items: start; }
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 1rem + 1.5vw, 2.1rem);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 220ms var(--ease), transform 220ms var(--ease);
}
.card:hover { border-color: rgba(23, 23, 27, 0.28); }
.card h3 { font-size: var(--step-1); }
.card p { font-size: 0.93rem; color: var(--slate); line-height: 1.6; }
.band-bone .card { background: var(--paper); }
.band-ink .card {
  background: rgba(252, 251, 248, 0.035);
  border-color: var(--line-dark);
}
.band-ink .card p { color: rgba(252, 251, 248, 0.66); }
.band-ink .card:hover { border-color: rgba(252, 251, 248, 0.36); }

.card-index {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--selvedge);
  margin-bottom: 0.35rem;
}

.card-media {
  margin: -0.4rem 0 0.6rem;
  border-radius: 3px;
  overflow: hidden;
  background: var(--bone);
}
.card-media img, .card-media svg { width: 100%; display: block; }

/* Feature list */
.flist { list-style: none; margin: 0; padding: 0; }
.flist li {
  padding: 1.15rem 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr);
  gap: 1rem clamp(1rem, 3vw, 3rem);
  align-items: start;
}
.flist li:last-child { border-bottom: 1px solid var(--line); }
.flist h3 { font-family: var(--body); font-size: 1.02rem; font-weight: 550; letter-spacing: 0; line-height: 1.4; }
.flist p { font-size: 0.93rem; color: var(--slate); }
@media (max-width: 720px) { .flist li { grid-template-columns: minmax(0, 1fr); gap: 0.4rem; } }

/* Steps — genuine sequence, so numbering carries meaning */
.steps { counter-reset: step; display: grid; gap: 0; }
.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 2rem);
  padding-block: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
  border-top: 1px solid var(--line);
  align-items: start;
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--selvedge);
  padding-top: 0.45rem;
}
.step h3 { font-size: var(--step-2); margin-bottom: 0.55rem; }
.step p { color: var(--slate); max-width: 62ch; font-size: 0.98rem; }
@media (max-width: 620px) {
  .step { grid-template-columns: minmax(0, 1fr); gap: 0.5rem; }
  .step::before { padding-top: 0; }
}

/* ==========================================================================
   Split feature
   ========================================================================== */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
}
.split-flip .split-media { order: -1; }
@media (max-width: 900px) {
  .split { grid-template-columns: minmax(0, 1fr); }
  .split-flip .split-media { order: 0; }
}
.split-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bone);
  overflow: hidden;
}
.band-ink .split-media { border-color: var(--line-dark); background: rgba(252,251,248,0.04); }

/* ==========================================================================
   Quote / statement
   ========================================================================== */

.statement {
  font-family: var(--display);
  font-size: var(--step-3);
  line-height: 1.16;
  letter-spacing: -0.02em;
  max-width: 22ch;
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq { border-top: 1px solid var(--line); }
.faq details {
  border-bottom: 1px solid var(--line);
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.4rem 2.5rem 1.4rem 0;
  position: relative;
  font-size: 1.03rem;
  font-weight: 500;
  transition: color 180ms var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { color: var(--indigo); }
.faq summary::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 50%;
  width: 11px;
  height: 11px;
  border-right: 1.5px solid var(--slate);
  border-bottom: 1.5px solid var(--slate);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 240ms var(--ease);
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq .faq-body { padding: 0 2.5rem 1.6rem 0; }
.faq .faq-body p { color: var(--slate); font-size: 0.96rem; }
.faq .faq-body p + p { margin-top: 0.8rem; }
.faq .faq-body a { color: var(--indigo); border-bottom: 1px solid var(--line); }
.faq .faq-body a:hover { border-color: var(--indigo); }

/* ==========================================================================
   Table
   ========================================================================== */

.tbl-scroll { overflow-x: auto; }
.tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 560px;
}
.tbl th, .tbl td {
  text-align: left;
  padding: 1rem 1.25rem 1rem 0;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.tbl th {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 500;
  border-bottom-color: var(--ink);
}
.tbl td strong { font-weight: 550; }
.tbl td span { color: var(--slate); }

/* ==========================================================================
   Code
   ========================================================================== */

.code {
  background: var(--ink);
  color: rgba(252, 251, 248, 0.9);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.82rem;
  line-height: 1.75;
  position: relative;
}
.code::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--selvedge);
  border-radius: 4px 0 0 4px;
}
.code pre { margin: 0; }
.code .c { color: rgba(252, 251, 248, 0.42); }
.code .k { color: #9fb4e6; }
.code .s { color: #d8c9a5; }

.code-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 0.7rem;
}

/* ==========================================================================
   Form
   ========================================================================== */

.form { display: grid; gap: 1.25rem; }
.field { display: grid; gap: 0.45rem; }
.field label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--slate);
}
.field input,
.field select,
.field textarea {
  font-family: var(--body);
  font-size: 0.98rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  width: 100%;
  transition: border-color 180ms var(--ease);
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--ink);
  outline: none;
}
.field textarea { min-height: 130px; resize: vertical; }
.field-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 620px) { .field-2 { grid-template-columns: minmax(0, 1fr); } }
.form-note { font-size: 0.82rem; color: var(--slate-lite); }
.hp { position: absolute; left: -9999px; }

/* ==========================================================================
   CTA band
   ========================================================================== */

.cta-band { position: relative; overflow: hidden; }
.cta-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 1rem + 3vw, 4rem);
  align-items: center;
}
@media (max-width: 820px) { .cta-inner { grid-template-columns: minmax(0, 1fr); } }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--ink);
  color: rgba(252, 251, 248, 0.65);
  padding-block: clamp(3.5rem, 2.5rem + 3vw, 5rem) 2.5rem;
  font-size: 0.9rem;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: clamp(2rem, 1rem + 3vw, 3.5rem);
  padding-bottom: clamp(2.5rem, 2rem + 2vw, 3.5rem);
  border-bottom: 1px solid var(--line-dark);
}
@media (max-width: 880px) { .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .footer-top { grid-template-columns: minmax(0, 1fr); } }

.footer-brand .brand-word { color: var(--paper); }
.footer-brand p { margin-top: 1rem; max-width: 34ch; font-size: 0.9rem; line-height: 1.6; }

.footer-col h4 {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(252, 251, 248, 0.45);
  margin-bottom: 1rem;
  font-weight: 500;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.65rem; }
.footer-col a { color: rgba(252, 251, 248, 0.7); transition: color 160ms var(--ease); }
.footer-col a:hover { color: var(--paper); }

.footer-bot {
  padding-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(252, 251, 248, 0.56);
}
.footer-bot a { color: rgba(252, 251, 248, 0.55); }
.footer-bot a:hover { color: var(--paper); }
.footer-legal { display: flex; flex-wrap: wrap; gap: 1.25rem; }

/* ==========================================================================
   Legal / prose pages
   ========================================================================== */

.prose h2 { font-size: var(--step-2); margin: 2.75rem 0 0.9rem; }
.prose h3 { font-family: var(--body); font-weight: 550; font-size: 1.05rem; letter-spacing: 0; margin: 1.75rem 0 0.5rem; }
.prose p { color: var(--slate); margin-bottom: 1rem; }
.prose ul { color: var(--slate); padding-left: 1.15rem; margin: 0 0 1.25rem; }
.prose li { margin-bottom: 0.5rem; }
.prose a { color: var(--indigo); border-bottom: 1px solid var(--line); }
.prose a:hover { border-color: var(--indigo); }

/* ==========================================================================
   Page header (interior pages)
   ========================================================================== */

.page-head {
  padding-block: clamp(3rem, 2rem + 4vw, 5.5rem) clamp(2.5rem, 2rem + 3vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.page-head .h-lg { max-width: 18ch; }
.page-head .lede { margin-top: 1.5rem; }

/* ==========================================================================
   Utility page
   ========================================================================== */

.util {
  min-height: 62vh;
  display: flex;
  align-items: center;
  padding-block: var(--section);
}
.util .h-lg { margin-bottom: 1.25rem; }

/* ==========================================================================
   Motion
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.is-in { opacity: 1; transform: none; }

@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;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   Photographic and dimensional system
   ========================================================================== */

:root {
  --shadow-float: 0 34px 90px -42px rgba(23, 23, 27, 0.78);
  --shadow-soft: 0 24px 60px -42px rgba(23, 23, 27, 0.48);
}

[data-tilt] {
  --tilt-x: 0deg;
  --tilt-y: 0deg;
  transform: perspective(1200px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
  transform-style: preserve-3d;
  transition: transform 500ms var(--ease);
  will-change: transform;
}

[data-tilt].reveal.is-in {
  transform: perspective(1200px) rotateX(var(--tilt-x)) rotateY(var(--tilt-y));
}

.hero-visual {
  position: relative;
  min-height: clamp(540px, 52vw, 660px);
  isolation: isolate;
}

.hero-photo {
  position: absolute;
  inset: 0 0 4.25rem 2.5rem;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(23, 23, 27, 0.16);
  border-radius: 10px;
  background: var(--bone-deep);
  box-shadow: var(--shadow-soft);
  transform: translateZ(0);
}

.hero-photo::after,
.editorial-photo::after,
.operational-photo::after,
.story-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(23,23,27,0.04), transparent 45%, rgba(23,23,27,0.36));
}

.hero-photo img,
.editorial-photo > img,
.operational-photo > img,
.story-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-photo img {
  object-position: 53% center;
  filter: saturate(0.78) contrast(1.05);
}

.hero-photo figcaption,
.editorial-photo figcaption,
.operational-photo figcaption,
.story-photo figcaption {
  position: absolute;
  z-index: 3;
  left: 1rem;
  right: 1rem;
  bottom: 0.85rem;
  color: rgba(252, 251, 248, 0.86);
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.07em;
  line-height: 1.45;
  text-transform: uppercase;
}

.hero-photo figcaption span,
.editorial-photo figcaption span,
.story-photo figcaption span {
  display: block;
  color: var(--paper);
  margin-bottom: 0.16rem;
}

.hero-grid,
.product-stage-grid {
  position: absolute;
  z-index: 2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(252,251,248,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(252,251,248,0.12) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom left, rgba(0,0,0,0.82), transparent 70%);
  -webkit-mask-image: linear-gradient(to bottom left, rgba(0,0,0,0.82), transparent 70%);
}

.hero-grid { inset: 0 0 4.25rem 2.5rem; border-radius: 10px; }

.reading-float {
  position: absolute;
  z-index: 5;
  left: 0;
  bottom: 0;
  width: min(470px, 90%);
  background: rgba(23, 23, 27, 0.96);
  backdrop-filter: blur(16px) saturate(1.1);
  box-shadow: var(--shadow-float);
  transform: translateZ(72px);
}

.hero-depth-label {
  position: absolute;
  z-index: 4;
  top: 1rem;
  right: -0.35rem;
  margin: 0;
  padding: 0.7rem 0.85rem;
  background: rgba(252,251,248,0.9);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.09em;
  line-height: 1.45;
  text-transform: uppercase;
  color: var(--slate);
  transform: translateZ(46px);
}
.hero-depth-label span { display: block; color: var(--ink); }

/* Ecosystem logos */
.ecosystem {
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, var(--paper), rgba(240, 237, 230, 0.38));
}
.ecosystem-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 1rem + 3vw, 4rem);
  align-items: end;
  margin-bottom: 2rem;
}
.ecosystem-head .muted { max-width: 58ch; }
.logo-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  background: var(--paper);
}
.logo-tile {
  min-height: 142px;
  padding: 1rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 1.25rem;
  overflow: hidden;
}
.logo-kind {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.09em;
  line-height: 1.35;
  text-transform: uppercase;
  color: var(--slate-lite);
}
.logo-tile img {
  width: 100%;
  max-width: 128px;
  max-height: 42px;
  margin: auto;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.68;
  transition: filter 220ms var(--ease), opacity 220ms var(--ease), transform 220ms var(--ease);
}
.logo-tile:hover img { filter: grayscale(0); opacity: 1; transform: translateY(-2px); }
/* Editorial field story */
.media-story { overflow: hidden; }
.story-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(1rem, 0.6rem + 2vw, 2rem);
  align-items: start;
}
.story-photo {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: var(--bone);
  box-shadow: var(--shadow-soft);
}
.story-photo-primary {
  grid-column: 1 / span 7;
  min-height: clamp(430px, 50vw, 650px);
}
.story-photo-primary img { filter: saturate(0.74) contrast(1.05); }
.story-copy {
  grid-column: 8 / -1;
  padding: clamp(1rem, 1vw, 2rem) 0 0 clamp(0rem, 1vw, 1.5rem);
}
.story-copy .muted { margin-top: 1.25rem; max-width: 50ch; }
.story-photo-secondary {
  grid-column: 7 / -1;
  min-height: clamp(300px, 32vw, 430px);
  margin-top: clamp(-6rem, -5vw, -2rem);
  z-index: 3;
}
.story-photo-secondary img { filter: saturate(0.7) contrast(1.06); }
.signal-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}
.signal-list li {
  display: grid;
  grid-template-columns: 2.3rem 1fr;
  gap: 0.25rem 0.7rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
}
.signal-list span {
  grid-row: 1 / span 2;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--selvedge);
  padding-top: 0.2rem;
}
.signal-list strong { font-size: 0.9rem; font-weight: 550; }
.signal-list small { color: var(--slate); font-size: 0.78rem; line-height: 1.5; }

/* Reader over real production context */
.product-stage {
  position: relative;
  min-height: clamp(500px, 49vw, 610px);
  isolation: isolate;
  background: var(--ink);
  box-shadow: var(--shadow-soft);
}
.product-stage-tall { min-height: clamp(560px, 58vw, 700px); }
.product-stage-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.07) brightness(0.63);
}
.product-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(23,23,27,0.04), rgba(23,23,27,0.73));
  pointer-events: none;
}
.product-stage-grid { inset: 0; z-index: 2; }
.product-stage-device {
  position: absolute;
  z-index: 4;
  left: 8%;
  right: 8%;
  top: 14%;
  padding: 1.1rem;
  background: rgba(252,251,248,0.92);
  border: 1px solid rgba(252,251,248,0.52);
  border-radius: 7px;
  box-shadow: var(--shadow-float);
  backdrop-filter: blur(14px);
  transform: translateZ(55px) rotate(-1.2deg);
}
.product-stage-device img { width: 100%; }
.product-stage-tag {
  position: absolute;
  z-index: 5;
  left: 1rem;
  bottom: 1rem;
  padding: 0.68rem 0.8rem;
  background: rgba(23,23,27,0.88);
  border: 1px solid rgba(252,251,248,0.18);
  color: rgba(252,251,248,0.7);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  line-height: 1.45;
  text-transform: uppercase;
  backdrop-filter: blur(12px);
  transform: translateZ(70px);
}
.product-stage-tag span { display: block; color: var(--paper); }

/* Interior photographic panels */
.editorial-photo,
.operational-photo {
  position: relative;
  margin: 0;
  min-height: 520px;
  box-shadow: var(--shadow-soft);
  isolation: isolate;
}
.editorial-photo > img { filter: saturate(0.72) contrast(1.04); }
.editorial-photo figcaption { font-size: 0.68rem; }
.operational-photo > img { filter: saturate(0.62) contrast(1.06) brightness(0.76); }
.operational-photo figcaption {
  padding-top: 0.8rem;
  border-top: 1px solid rgba(252,251,248,0.28);
}
.operational-overlay {
  position: absolute;
  z-index: 4;
  left: 1.25rem;
  top: 1.25rem;
  min-width: min(280px, calc(100% - 2.5rem));
  padding: 1rem;
  background: rgba(23,23,27,0.86);
  color: var(--paper);
  border: 1px solid rgba(252,251,248,0.16);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
  transform: translateZ(48px);
}
.operational-overlay span,
.operational-overlay small {
  display: block;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.operational-overlay span { color: rgba(252,251,248,0.55); font-size: 0.6rem; }
.operational-overlay strong { display: block; margin: 0.45rem 0 0.6rem; font-family: var(--display); font-size: 1.55rem; font-weight: 400; }
.operational-overlay small { color: rgba(252,251,248,0.68); font-size: 0.56rem; }

@media (max-width: 1100px) {
  .logo-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .hero-visual { min-height: 650px; max-width: 760px; }
  .hero-photo { inset: 0 0 4rem 3rem; }
  .hero-grid { inset: 0 0 4rem 3rem; }
  .ecosystem-head { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .story-photo-primary { grid-column: 1 / span 8; }
  .story-copy { grid-column: 9 / -1; padding-left: 0; }
  .story-photo-secondary { grid-column: 6 / -1; }
}

@media (max-width: 760px) {
  .logo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .story-grid { grid-template-columns: minmax(0, 1fr); }
  .story-photo-primary,
  .story-copy,
  .story-photo-secondary { grid-column: auto; }
  .story-photo-primary { min-height: 430px; }
  .story-copy { padding: 1rem 0; }
  .story-photo-secondary { min-height: 360px; margin-top: 0; }
  .editorial-photo, .operational-photo { min-height: 460px; }
}

@media (max-width: 620px) {
  .hero-visual { min-height: 690px; }
  .hero-photo { inset: 0 0 10.5rem 1.25rem; }
  .hero-grid { inset: 0 0 10.5rem 1.25rem; }
  .reading-float { width: calc(100% - 1rem); }
  .reading-float .reading-verdict { display: grid; }
  .hero-depth-label { right: 0; top: 0.75rem; }
  .logo-tile { min-height: 126px; }
  .product-stage, .product-stage-tall { min-height: 490px; }
  .product-stage-device { left: 4%; right: 4%; top: 18%; padding: 0.6rem; }
  .editorial-photo, .operational-photo { min-height: 410px; }
}

@media (prefers-reduced-motion: reduce) {
  [data-tilt] { transform: none !important; }
}


/* ==========================================================================
   Robust platform release — material truth / partnership system
   ========================================================================== */

.nav { gap: clamp(0.95rem, 1.4vw, 1.7rem); }
.nav a { white-space: nowrap; }
.footer-top-robust { grid-template-columns: minmax(260px, 1.45fr) repeat(3, minmax(130px, 0.65fr)); }
.footer-thesis { color: rgba(252,251,248,0.42); font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.05em; text-transform: uppercase; }

.hero-robust { min-height: calc(100vh - 74px); display: flex; align-items: center; }
.hero-robust .hero-inner { grid-template-columns: minmax(0, 0.96fr) minmax(520px, 1.04fr); }
.hero-robust .h-xl { max-width: 11ch; }
.hero-robust .hero-copy .lede { max-width: 48ch; }
.hero-orbit { position: absolute; border: 1px solid rgba(35,48,78,0.1); border-radius: 50%; pointer-events: none; }
.hero-orbit-a { width: 520px; height: 520px; right: -220px; top: -170px; }
.hero-orbit-b { width: 310px; height: 310px; left: -190px; bottom: -190px; }
.hero-foot-signals { gap: 0.85rem 1.4rem; }
.hero-foot-signals p { display: inline-flex; align-items: center; gap: 0.45rem; }
.signal-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--selvedge); box-shadow: 0 0 0 5px rgba(179,51,44,0.08); }
.hero-visual-robust { min-height: 700px; }
.hero-visual-robust .hero-photo { inset: 1rem 0 5rem 3.5rem; }
.hero-visual-robust .hero-grid { inset: 1rem 0 5rem 3.5rem; }
.reading-context { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0 0 0.9rem; margin-bottom: 0.35rem; border-bottom: 1px solid rgba(252,251,248,0.08); font-family: var(--mono); font-size: 0.73rem; }
.reading-context span { color: rgba(252,251,248,0.5); text-transform: uppercase; letter-spacing: 0.08em; }
.reading-context strong { font-weight: 500; }
.hero-node { position: absolute; z-index: 6; display: flex; align-items: center; gap: 0.55rem; padding: 0.55rem 0.7rem; background: rgba(252,251,248,0.92); border: 1px solid var(--line); backdrop-filter: blur(14px); box-shadow: 0 20px 60px -40px rgba(23,23,27,0.8); font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; transform: translateZ(55px); }
.hero-node span { color: var(--selvedge); }
.hero-node-top { right: 1rem; top: 2.5rem; }
.hero-node-mid { right: -0.4rem; top: 10rem; }
.hero-node-low { right: 0.8rem; top: 17.5rem; }
.proof-robust .proof-item { min-height: 106px; }

.thesis-band { position: relative; overflow: hidden; }
.thesis-band::after { content:""; position:absolute; inset:auto -10% -40% 42%; height:520px; background:radial-gradient(circle, rgba(35,48,78,0.08), transparent 68%); pointer-events:none; }
.identity-grid { position: relative; display: grid; grid-template-columns: minmax(0,1fr) 76px minmax(0,1fr); align-items: stretch; margin-top: 1rem; }
.identity-panel { position: relative; min-height: 410px; padding: clamp(2rem, 3vw, 3.3rem); border: 1px solid var(--line); overflow: hidden; }
.identity-panel::before { content:""; position:absolute; inset:0; background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px); background-size: 28px 28px; mask-image: linear-gradient(to bottom right, rgba(0,0,0,0.55), transparent 78%); pointer-events:none; }
.identity-panel > * { position:relative; z-index:1; }
.identity-declared { background: var(--bone); }
.identity-measured { background: var(--ink); color: var(--paper); }
.identity-label { display:flex; justify-content:space-between; gap:1rem; font-family:var(--mono); font-size:0.66rem; text-transform:uppercase; letter-spacing:0.1em; color:var(--slate); }
.identity-label span { color:var(--selvedge); }
.identity-measured .identity-label { color:rgba(252,251,248,0.5); }
.identity-panel h3 { font-size: var(--step-3); max-width: 12ch; margin: 4rem 0 2.2rem; }
.identity-panel ul { list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0; border-top:1px solid var(--line); }
.identity-panel li { padding:0.8rem 0; border-bottom:1px solid var(--line); font-size:0.86rem; }
.identity-panel li:nth-child(odd) { border-right:1px solid var(--line); padding-right:1rem; }
.identity-panel li:nth-child(even) { padding-left:1rem; }
.identity-measured ul, .identity-measured li { border-color:rgba(252,251,248,0.13); }
.identity-panel p { margin-top:2rem; color:var(--slate); max-width:40ch; font-size:0.92rem; }
.identity-measured p { color:rgba(252,251,248,0.62); }
.identity-operator { position:relative; display:grid; place-items:center; z-index:2; }
.identity-operator::before { content:""; position:absolute; inset:0 50%; width:1px; background:var(--line); }
.identity-operator span { position:relative; display:grid; place-items:center; width:58px; height:58px; background:var(--paper); border:1px solid var(--line); border-radius:50%; font-family:var(--display); font-size:2rem; color:var(--selvedge); }

.intelligence-section { overflow:hidden; position:relative; }
.intelligence-section::before { content:""; position:absolute; width:700px; height:700px; border:1px solid rgba(252,251,248,0.05); border-radius:50%; right:-300px; top:-350px; }
.stack-map { display:grid; grid-template-columns:minmax(190px,0.8fr) minmax(220px,1fr) minmax(260px,1.15fr) minmax(280px,1.3fr); gap:1px; background:var(--line-dark); border:1px solid var(--line-dark); position:relative; }
.stack-map > * { background:var(--ink); padding:clamp(1.4rem,2.5vw,2.3rem); min-height:310px; position:relative; overflow:hidden; }
.stack-map span, .stack-map small { display:block; }
.stack-kicker, .stack-bridge > span { font-family:var(--mono); font-size:0.62rem; text-transform:uppercase; letter-spacing:0.1em; color:rgba(252,251,248,0.45); }
.stack-map strong { display:block; font-family:var(--display); font-size:clamp(1.55rem,2vw,2.2rem); font-weight:400; line-height:1.08; margin-top:4.4rem; }
.stack-map small { margin-top:1rem; color:rgba(252,251,248,0.55); font-size:0.8rem; line-height:1.55; }
.stack-source::after { content:""; position:absolute; left:2rem; right:2rem; bottom:2rem; height:52px; background:repeating-linear-gradient(90deg, transparent 0 8px, rgba(252,251,248,0.15) 8px 10px); opacity:0.45; }
.stack-bridge { background:linear-gradient(160deg, var(--indigo), #182038) !important; }
.stack-bridge strong { position:relative; z-index:2; }
.bridge-pulse { position:absolute; width:160px; height:160px; border:1px solid rgba(252,251,248,0.25); border-radius:50%; right:-30px; bottom:-30px; }
.bridge-pulse::before, .bridge-pulse::after { content:""; position:absolute; inset:18px; border:1px solid rgba(252,251,248,0.18); border-radius:50%; }
.bridge-pulse::after { inset:38px; background:rgba(252,251,248,0.06); }
.stack-core::after { content:""; position:absolute; width:8px; height:8px; border-radius:50%; background:var(--selvedge); box-shadow:45px 30px 0 rgba(252,251,248,0.35), 105px -5px 0 rgba(252,251,248,0.25), 150px 55px 0 rgba(252,251,248,0.18), 75px 85px 0 rgba(179,51,44,0.75); left:2rem; bottom:3.2rem; }
.stack-destinations { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); padding:0 !important; }
.stack-destinations article { min-height:155px; padding:1.3rem; border-right:1px solid var(--line-dark); border-bottom:1px solid var(--line-dark); }
.stack-destinations article:nth-child(even) { border-right:0; }
.stack-destinations article:nth-child(n+3) { border-bottom:0; }
.stack-destinations span { font-family:var(--mono); font-size:0.56rem; letter-spacing:0.08em; text-transform:uppercase; color:rgba(252,251,248,0.42); }
.stack-destinations strong { font-family:var(--body); font-size:0.88rem; font-weight:500; line-height:1.45; margin-top:2.6rem; }

.passport-section { overflow:hidden; }
.passport-console { border:1px solid var(--line); background:var(--paper); box-shadow:0 34px 90px -70px rgba(23,23,27,0.75); }
.passport-nav { display:flex; overflow-x:auto; border-bottom:1px solid var(--line); background:rgba(240,237,230,0.48); }
.passport-tab { appearance:none; border:0; border-right:1px solid var(--line); background:transparent; padding:1rem 1.2rem; font-family:var(--mono); font-size:0.66rem; letter-spacing:0.07em; text-transform:uppercase; color:var(--slate); cursor:pointer; white-space:nowrap; }
.passport-tab:hover { color:var(--ink); }
.passport-tab.is-active { background:var(--paper); color:var(--ink); box-shadow:inset 0 -2px 0 var(--selvedge); }
.passport-main { display:grid; grid-template-columns:minmax(0,1.55fr) minmax(240px,0.45fr); }
.passport-record { min-height:520px; padding:clamp(1.5rem,3vw,3rem); border-right:1px solid var(--line); position:relative; overflow:hidden; }
.passport-record::after { content:""; position:absolute; inset:0; background-image:linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px); background-size:34px 34px; mask-image:linear-gradient(to bottom right, transparent 10%, rgba(0,0,0,0.45)); pointer-events:none; }
.passport-record-head { position:relative; z-index:2; display:flex; justify-content:space-between; gap:1rem; padding-bottom:1rem; border-bottom:1px solid var(--line); font-family:var(--mono); font-size:0.7rem; letter-spacing:0.08em; text-transform:uppercase; }
.passport-record-head small { color:var(--slate); }
.passport-panel { display:none; position:relative; z-index:2; padding-top:clamp(3rem,7vw,6rem); }
.passport-panel.is-active { display:block; animation:passportIn 280ms var(--ease) both; }
@keyframes passportIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.passport-label { font-family:var(--mono); font-size:0.64rem; letter-spacing:0.1em; text-transform:uppercase; color:var(--selvedge); }
.passport-panel h3 { font-size:clamp(2rem,4vw,4.1rem); max-width:13ch; margin:1rem 0 3rem; }
.passport-panel dl { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:0; margin:0; border-top:1px solid var(--line); }
.passport-panel dl div { padding:1rem 0; border-bottom:1px solid var(--line); display:grid; grid-template-columns:110px 1fr; gap:1rem; }
.passport-panel dl div:nth-child(odd) { padding-right:1rem; border-right:1px solid var(--line); }
.passport-panel dl div:nth-child(even) { padding-left:1rem; }
.passport-panel dt { font-family:var(--mono); font-size:0.58rem; text-transform:uppercase; letter-spacing:0.08em; color:var(--slate); }
.passport-panel dd { margin:0; font-size:0.84rem; }
.passport-rail { display:flex; flex-direction:column; }
.passport-rail > div { flex:1; padding:1.5rem; border-bottom:1px solid var(--line); }
.passport-rail > div:last-child { border-bottom:0; }
.passport-rail span { font-family:var(--mono); font-size:0.62rem; color:var(--selvedge); }
.passport-rail strong { display:block; margin:1rem 0 0.5rem; font-family:var(--body); font-size:0.92rem; font-weight:550; }
.passport-rail p { color:var(--slate); font-size:0.8rem; line-height:1.55; }

.partner-surface { position:relative; overflow:hidden; }
.partner-surface::before { content:""; position:absolute; inset:0; background:linear-gradient(120deg, transparent 48%, rgba(35,48,78,0.035) 48%); pointer-events:none; }
.bridge-grid { display:grid; grid-template-columns:minmax(0,1fr) 90px minmax(0,1fr); align-items:stretch; margin-top:1rem; }
.bridge-card { padding:clamp(2rem,3.5vw,3.5rem); border:1px solid var(--line); background:var(--paper); }
.bridge-card-accent { background:var(--indigo); color:var(--paper); border-color:var(--indigo); }
.bridge-index { display:block; font-family:var(--mono); font-size:0.62rem; letter-spacing:0.09em; text-transform:uppercase; color:var(--slate); }
.bridge-card-accent .bridge-index { color:rgba(252,251,248,0.52); }
.bridge-card h3 { font-size:var(--step-3); max-width:13ch; margin:3.5rem 0 2rem; }
.bridge-lock { position:relative; display:grid; place-items:center; z-index:2; }
.bridge-lock::before { content:""; position:absolute; inset:0 50%; width:1px; background:var(--line); }
.bridge-lock span { position:relative; display:grid; place-items:center; width:58px; height:58px; background:var(--paper); border:1px solid var(--line); border-radius:50%; font-size:1.5rem; color:var(--selvedge); }
.bridge-lock small { position:absolute; top:calc(50% + 42px); font-family:var(--mono); font-size:0.55rem; letter-spacing:0.06em; text-transform:uppercase; color:var(--slate); white-space:nowrap; }
.check-list { list-style:none; margin:0; padding:0; border-top:1px solid var(--line); }
.check-list li { position:relative; padding:0.75rem 0 0.75rem 1.35rem; border-bottom:1px solid var(--line); color:var(--slate); font-size:0.9rem; }
.check-list li::before { content:""; position:absolute; left:0; top:1.1rem; width:6px; height:6px; border-radius:50%; background:var(--selvedge); }
.bridge-card-accent .check-list { border-color:rgba(252,251,248,0.15); }
.bridge-card-accent .check-list li { color:rgba(252,251,248,0.7); border-color:rgba(252,251,248,0.15); }
.partner-outcome { margin-top:clamp(2rem,4vw,4rem); padding-top:clamp(2rem,4vw,4rem); border-top:1px solid var(--line); display:flex; justify-content:space-between; align-items:flex-end; gap:2rem; }
.partner-outcome .statement { max-width:28ch; }
.statement-wide { max-width:31ch; }

.cta-band-robust { position:relative; overflow:hidden; }
.cta-band-robust::after { content:""; position:absolute; width:520px; height:520px; border:1px solid rgba(252,251,248,0.08); border-radius:50%; right:-180px; top:-220px; }

.page-head-actions { margin-top:2rem; }
.page-head-partners { position:relative; overflow:hidden; }
.page-head-partners::after { content:""; position:absolute; width:520px; height:520px; border:1px solid var(--line); border-radius:50%; right:-150px; top:-310px; }
.partnership-manifesto { padding-bottom:clamp(3rem,6vw,6rem); border-bottom:1px solid var(--line); }
.partner-type-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); border-left:1px solid var(--line); margin-top:0; }
.partner-type { min-height:360px; padding:clamp(1.5rem,2.5vw,2.5rem); border-right:1px solid var(--line); border-bottom:1px solid var(--line); display:flex; flex-direction:column; }
.partner-type > span { font-family:var(--mono); font-size:0.66rem; color:var(--selvedge); }
.partner-type h2 { font-size:var(--step-2); margin:3.5rem 0 1.2rem; }
.partner-type p { color:var(--slate); font-size:0.9rem; }
.partner-type .link-arrow { margin-top:auto; align-self:flex-start; }
.partner-type-featured { background:var(--indigo); color:var(--paper); }
.partner-type-featured p { color:rgba(252,251,248,0.68); }
.partner-type-featured .link-arrow { border-color:rgba(252,251,248,0.22); }
.independence-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); border-left:1px solid var(--line); }
.independence-grid article { min-height:300px; padding:2rem; border-right:1px solid var(--line); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.independence-mark { display:inline-flex; padding:0.3rem 0.5rem; background:var(--ink); color:var(--paper); font-family:var(--mono); font-size:0.58rem; letter-spacing:0.08em; text-transform:uppercase; }
.independence-grid h3 { font-size:var(--step-2); margin:4rem 0 1rem; }
.independence-grid p { color:var(--slate); font-size:0.88rem; }
.pilot-rail { border-top:1px solid var(--line); }
.pilot-rail article { display:grid; grid-template-columns:70px minmax(0,1fr) 150px; gap:clamp(1rem,3vw,3rem); padding:clamp(1.5rem,3vw,2.4rem) 0; border-bottom:1px solid var(--line); align-items:start; }
.pilot-rail article > span { font-family:var(--mono); font-size:0.68rem; color:var(--selvedge); padding-top:0.3rem; }
.pilot-rail h3 { font-size:var(--step-2); margin-bottom:0.65rem; }
.pilot-rail p { color:var(--slate); max-width:62ch; }
.pilot-rail small { font-family:var(--mono); font-size:0.62rem; letter-spacing:0.07em; text-transform:uppercase; color:var(--slate); padding-top:0.45rem; }
.collaboration-output .card { min-height:245px; }
.principle-list { border-top:1px solid var(--line); }
.principle-list article { display:grid; grid-template-columns:70px minmax(260px,0.75fr) minmax(0,1fr); gap:clamp(1rem,3vw,3rem); padding:1.5rem 0; border-bottom:1px solid var(--line); align-items:start; }
.principle-list span { font-family:var(--mono); font-size:0.65rem; color:var(--selvedge); }
.principle-list h3 { font-size:var(--step-1); }
.principle-list p { color:var(--slate); font-size:0.9rem; max-width:62ch; }
.partner-photo-band .editorial-photo { min-height:600px; }

.product-architecture { overflow:hidden; }
.architecture-grid { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); border:1px solid var(--line-dark); }
.architecture-grid article { min-height:430px; padding:clamp(1.5rem,3vw,2.5rem); border-right:1px solid var(--line-dark); position:relative; overflow:hidden; }
.architecture-grid article:last-child { border-right:0; }
.architecture-index { font-family:var(--mono); font-size:0.62rem; letter-spacing:0.1em; text-transform:uppercase; color:rgba(252,251,248,0.45); }
.architecture-grid h3 { font-size:var(--step-3); max-width:10ch; margin:4rem 0 1rem; }
.architecture-grid p { color:rgba(252,251,248,0.62); font-size:0.9rem; max-width:38ch; }
.architecture-signal { position:absolute; left:2rem; right:2rem; bottom:2.5rem; height:76px; display:flex; align-items:center; gap:8px; }
.architecture-signal i { flex:1; background:rgba(252,251,248,0.2); height:18%; }
.architecture-signal i:nth-child(2) { height:54%; }
.architecture-signal i:nth-child(3) { height:90%; background:var(--selvedge); }
.architecture-signal i:nth-child(4) { height:40%; }
.architecture-signal i:nth-child(5) { height:68%; }
.architecture-nodes { position:absolute; left:2rem; right:2rem; bottom:2rem; display:grid; grid-template-columns:repeat(4,1fr); gap:0.5rem; }
.architecture-nodes b { display:grid; place-items:center; min-height:52px; border:1px solid var(--line-dark); font-family:var(--mono); font-size:0.58rem; font-weight:400; text-transform:uppercase; color:rgba(252,251,248,0.6); }
.mini-json { position:absolute; left:2rem; right:2rem; bottom:2rem; margin:0; padding:1rem; background:rgba(0,0,0,0.22); border:1px solid var(--line-dark); color:rgba(252,251,248,0.7); font-family:var(--mono); font-size:0.69rem; line-height:1.6; overflow:auto; }
.passport-product .check-list { margin:1.5rem 0; }
.passport-mini { background:var(--ink); color:var(--paper); border-radius:6px; padding:clamp(1.5rem,3vw,2.5rem); box-shadow:0 34px 90px -62px rgba(23,23,27,0.8); }
.passport-mini-head { display:flex; justify-content:space-between; gap:1rem; padding-bottom:1rem; border-bottom:1px solid var(--line-dark); font-family:var(--mono); font-size:0.68rem; letter-spacing:0.08em; text-transform:uppercase; }
.passport-mini-head small { color:rgba(252,251,248,0.45); }
.passport-mini-line { display:grid; grid-template-columns:1fr auto; gap:1rem; padding:1.2rem 0; border-bottom:1px solid var(--line-dark); }
.passport-mini-line span { color:rgba(252,251,248,0.48); font-family:var(--mono); font-size:0.62rem; letter-spacing:0.07em; text-transform:uppercase; }
.passport-mini-line strong { font-weight:500; font-size:0.9rem; }
.passport-mini-footer { padding-top:1.5rem; color:rgba(252,251,248,0.52); font-family:var(--mono); font-size:0.62rem; letter-spacing:0.06em; text-transform:uppercase; }
.text-red { color:#e06b63; }
.solution-feature { display:grid; grid-template-columns:minmax(0,0.9fr) minmax(0,1.1fr); gap:clamp(2rem,5vw,6rem); align-items:end; padding:clamp(2rem,4vw,4rem); margin-bottom:2rem; background:var(--indigo); color:var(--paper); }
.solution-feature .card-index { color:rgba(252,251,248,0.52); }
.solution-feature .muted { color:rgba(252,251,248,0.68); }
.solution-feature .link-arrow { align-self:flex-start; border-color:rgba(252,251,248,0.25); }
.developer-translation { border-top:1px solid var(--line); }
.translation-schema { display:grid; grid-template-columns:minmax(0,1.25fr) minmax(280px,0.75fr); border:1px solid var(--line); }
.schema-code { background:var(--ink); color:var(--paper); overflow:hidden; }
.code-top { display:flex; justify-content:space-between; align-items:center; gap:1rem; padding:0.9rem 1rem; border-bottom:1px solid var(--line-dark); font-family:var(--mono); font-size:0.62rem; color:rgba(252,251,248,0.62); }
.copy-btn { border:1px solid var(--line-dark); background:transparent; color:var(--paper); font-family:var(--mono); font-size:0.58rem; text-transform:uppercase; letter-spacing:0.08em; padding:0.45rem 0.6rem; cursor:pointer; }
.schema-code pre { margin:0; padding:clamp(1.25rem,3vw,2.4rem); overflow:auto; min-height:430px; }
.schema-code code { font-family:var(--mono); font-size:0.76rem; line-height:1.65; color:rgba(252,251,248,0.75); }
.schema-notes { display:flex; flex-direction:column; }
.schema-notes article { flex:1; padding:1.5rem; border-bottom:1px solid var(--line); }
.schema-notes article:last-child { border-bottom:0; }
.schema-notes span { font-family:var(--mono); font-size:0.58rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--selvedge); }
.schema-notes h3 { font-size:var(--step-1); margin:1rem 0 0.5rem; }
.schema-notes p { color:var(--slate); font-size:0.82rem; }
.category-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); border-left:1px solid var(--line); }
.category-grid article { min-height:300px; padding:2rem; border-right:1px solid var(--line); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.category-grid span { font-family:var(--mono); font-size:0.6rem; letter-spacing:0.08em; text-transform:uppercase; color:var(--selvedge); }
.category-grid h3 { font-size:var(--step-2); margin:4rem 0 0.8rem; }
.category-grid p { color:var(--slate); font-size:0.86rem; }

@media (max-width: 1120px) {
  .hero-robust .hero-inner { grid-template-columns:minmax(0,1fr) minmax(470px,0.95fr); }
  .stack-map { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .stack-map > * { min-height:290px; }
  .partner-type-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .independence-grid, .category-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width: 980px) {
  .hero-robust { min-height:auto; }
  .hero-robust .hero-inner { grid-template-columns:minmax(0,1fr); }
  .hero-robust .h-xl { max-width:13ch; }
  .hero-visual-robust { max-width:760px; }
  .identity-grid { grid-template-columns:minmax(0,1fr); gap:0; }
  .identity-operator { min-height:74px; }
  .identity-operator::before { inset:50% 0; width:auto; height:1px; }
  .bridge-grid { grid-template-columns:minmax(0,1fr); }
  .bridge-lock { min-height:90px; }
  .bridge-lock::before { inset:50% 0; width:auto; height:1px; }
  .bridge-lock small { top:calc(50% + 34px); }
  .passport-main { grid-template-columns:minmax(0,1fr); }
  .passport-record { border-right:0; border-bottom:1px solid var(--line); }
  .passport-rail { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); }
  .passport-rail > div { border-bottom:0; border-right:1px solid var(--line); }
  .passport-rail > div:last-child { border-right:0; }
  .architecture-grid { grid-template-columns:minmax(0,1fr); }
  .architecture-grid article { min-height:370px; border-right:0; border-bottom:1px solid var(--line-dark); }
  .architecture-grid article:last-child { border-bottom:0; }
  .translation-schema { grid-template-columns:minmax(0,1fr); }
  .schema-notes { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); }
  .schema-notes article { border-bottom:0; border-right:1px solid var(--line); }
  .schema-notes article:last-child { border-right:0; }
  .footer-top-robust { grid-template-columns:repeat(2,minmax(0,1fr)); }
}

@media (max-width: 760px) {
  .hero-visual-robust { min-height:720px; }
  .hero-node { display:none; }
  .hero-visual-robust .hero-photo { inset:0 0 11rem 1.2rem; }
  .hero-visual-robust .hero-grid { inset:0 0 11rem 1.2rem; }
  .stack-map { grid-template-columns:minmax(0,1fr); }
  .stack-map > * { min-height:260px; }
  .stack-destinations { min-height:0 !important; }
  .identity-panel { min-height:360px; }
  .identity-panel h3 { margin-top:3rem; }
  .passport-panel h3 { max-width:16ch; }
  .passport-panel dl { grid-template-columns:minmax(0,1fr); }
  .passport-panel dl div:nth-child(odd), .passport-panel dl div:nth-child(even) { padding-left:0; padding-right:0; border-right:0; }
  .passport-rail { grid-template-columns:minmax(0,1fr); }
  .passport-rail > div { border-right:0; border-bottom:1px solid var(--line); }
  .passport-rail > div:last-child { border-bottom:0; }
  .partner-outcome { flex-direction:column; align-items:flex-start; }
  .partner-type-grid, .independence-grid, .category-grid { grid-template-columns:minmax(0,1fr); }
  .partner-type { min-height:320px; }
  .pilot-rail article { grid-template-columns:52px minmax(0,1fr); }
  .pilot-rail small { grid-column:2; padding-top:0; }
  .principle-list article { grid-template-columns:52px minmax(0,1fr); }
  .principle-list p { grid-column:2; }
  .solution-feature { grid-template-columns:minmax(0,1fr); }
  .schema-notes { grid-template-columns:minmax(0,1fr); }
  .schema-notes article { border-right:0; border-bottom:1px solid var(--line); }
  .schema-notes article:last-child { border-bottom:0; }
  .footer-top-robust { grid-template-columns:minmax(0,1fr); }
  .footer-thesis { display:none; }
}

@media (max-width: 520px) {
  .identity-panel ul { grid-template-columns:minmax(0,1fr); }
  .identity-panel li:nth-child(odd), .identity-panel li:nth-child(even) { padding-left:0; padding-right:0; border-right:0; }
  .passport-record { padding:1.2rem; min-height:570px; }
  .passport-panel { padding-top:3rem; }
  .passport-panel dl div { grid-template-columns:92px 1fr; }
  .stack-destinations { grid-template-columns:minmax(0,1fr); }
  .stack-destinations article { border-right:0; border-bottom:1px solid var(--line-dark) !important; }
  .stack-destinations article:last-child { border-bottom:0 !important; }
}

@media (prefers-reduced-motion: reduce) {
  .passport-panel.is-active { animation:none; }
}