/* ==========================================================================
   CHENFAN ELECTRIC
   Transformer cores / precision CRGO processing
   Visual system: industrial, editorial, hard-edged. No rounded cards.
   ========================================================================== */

:root {
  /* ink */
  --ink: #0a0c0d;
  --ink-2: #101314;
  --ink-3: #171b1c;
  --ink-4: #202526;
  /* paper */
  --paper: #f3f4f3;
  --paper-2: #e6e8e7;
  /* type on dark */
  --d-1: #f2f4f4;
  --d-2: rgba(242, 244, 244, 0.62);
  --d-3: rgba(242, 244, 244, 0.38);
  /* type on light */
  --l-1: #0d1011;
  --l-2: rgba(13, 16, 17, 0.62);
  --l-3: rgba(13, 16, 17, 0.38);
  /* rules */
  --rule-d: rgba(242, 244, 244, 0.13);
  --rule-l: rgba(13, 16, 17, 0.14);
  /* accent — used sparingly, on numerals and markers only */
  --acc: #4f93c0;

  --shell: 1440px;
  --pad: clamp(20px, 5vw, 90px);
  --band: clamp(96px, 13vh, 190px);

  --sans: "Helvetica Neue", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;

  --e1: cubic-bezier(0.22, 0.61, 0.36, 1);
  --e2: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--d-1);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body.locked {
  overflow: hidden;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
}

p {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

ul,
ol,
dl,
dd {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

::selection {
  background: var(--acc);
  color: #fff;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: -70px;
  left: 14px;
  z-index: 300;
  background: var(--paper);
  color: var(--l-1);
  padding: 11px 18px;
  font-size: 13px;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 14px;
}

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

/* --------------------------------------------------------------------------
   TYPE SCALE — four distinct tiers
   -------------------------------------------------------------------------- */

/* HUGE — hero + section statements */
h1 {
  font-size: clamp(3rem, 8.4vw, 9rem);
  letter-spacing: -0.042em;
}

.statement {
  font-size: clamp(2.2rem, 5.4vw, 5.6rem);
  letter-spacing: -0.038em;
}

/* LARGE — block headings */
h3 {
  font-size: clamp(1.55rem, 3.1vw, 3.1rem);
  letter-spacing: -0.034em;
}

h4 {
  font-size: clamp(1.3rem, 2.1vw, 2rem);
  letter-spacing: -0.03em;
}

/* MEDIUM — lead copy */
.lead,
.statement-note,
.hero-type p,
.dialog-lead {
  font-size: clamp(1.02rem, 1.25vw, 1.22rem);
  line-height: 1.55;
  color: var(--d-2);
  max-width: 44ch;
}

/* SMALL */
.note {
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--d-3);
  max-width: 62ch;
}

/* MICRO */
.eyebrow {
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--d-3);
}

.eyebrow i {
  font-style: normal;
  font-family: var(--mono);
  color: var(--acc);
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   MOTION — fade-up / image reveal only
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 1s var(--e2), transform 1s var(--e2);
  transition-delay: var(--d, 0ms);
}

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

.media-reveal {
  overflow: hidden;
}

.media-reveal img {
  clip-path: inset(0);
  transform: scale(1);
  transition: clip-path 1.25s var(--e2), transform 1.7s var(--e2);
}

.media-reveal.in img {
  clip-path: inset(0 0 0 0);
  transform: scale(1);
}

/* --------------------------------------------------------------------------
   BUTTONS / LINKS
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  height: 52px;
  padding: 0 26px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 2px;
  transition: background 0.35s var(--e1), color 0.35s, border-color 0.35s,
    transform 0.35s var(--e1);
}

.btn-lg {
  height: 62px;
  padding: 0 34px;
  font-size: 14px;
}

.btn-solid {
  background: var(--paper);
  color: var(--l-1);
}

.btn-solid:hover {
  transform: translateY(-2px);
  background: #fff;
}

.btn-line {
  border: 1px solid var(--rule-d);
  color: var(--d-1);
}

.btn-line:hover {
  border-color: var(--d-1);
  background: rgba(255, 255, 255, 0.05);
}

.link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding-bottom: 6px;
  border-bottom: 1px solid currentColor;
  color: var(--d-2);
  transition: color 0.3s, gap 0.3s var(--e1);
}

.link:hover {
  color: var(--d-1);
  gap: 14px;
}

/* --------------------------------------------------------------------------
   MASTHEAD
   -------------------------------------------------------------------------- */

.masthead {
  position: fixed;
  inset: 0 0 auto;
  z-index: 200;
  border-bottom: 1px solid transparent;
  transition: background 0.5s var(--e1), border-color 0.5s;
}

.masthead.solid {
  background: rgba(10, 12, 13, 0.92);
  border-bottom-color: var(--rule-d);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.masthead-inner {
  max-width: var(--shell);
  margin-inline: auto;
  padding: 16px var(--pad);
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 52px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  flex: none;
}

.brand-mark {
  width: auto;
  height: 30px;
}

.brand-word {
  width: auto;
  height: 9.5px;
}

.nav-desktop {
  display: flex;
  gap: clamp(16px, 2.1vw, 36px);
  margin-left: auto;
}

.nav-desktop a {
  position: relative;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--d-2);
  padding: 8px 0;
  transition: color 0.3s;
}

.nav-desktop a::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--e1);
}

.nav-desktop a:hover {
  color: var(--d-1);
}

.nav-desktop a:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  height: 40px;
  padding: 0 18px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--rule-d);
  border-radius: 2px;
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.nav-cta:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--l-1);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  margin-left: auto;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  gap: 7px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.4s var(--e1);
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(4.25px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:last-child {
  transform: translateY(-4.25px) rotate(-45deg);
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 8px var(--pad) 30px;
  background: var(--ink);
  border-top: 1px solid var(--rule-d);
  max-height: calc(100svh - 58px);
  overflow-y: auto;
}

.nav-mobile[hidden] {
  display: none !important;
}

.nav-mobile a {
  padding: 15px 0;
  font-size: 17px;
  letter-spacing: -0.01em;
  border-bottom: 1px solid var(--rule-d);
  color: var(--d-1);
}

.nav-mobile-cta {
  margin-top: 20px;
  border: 0 !important;
  background: var(--paper);
  color: var(--l-1) !important;
  text-align: center;
  font-weight: 700 !important;
  font-size: 13px !important;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 17px 0 !important;
}

/* --------------------------------------------------------------------------
   HERO
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: #060708;
}

.hero-frame {
  position: absolute;
  inset: -6% 0 -6%;
  will-change: transform;
}

.hero-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 58%;
  filter: saturate(0.72) contrast(1.06) brightness(0.82);
  animation: heroSettle 2.6s var(--e2) both;
}

@keyframes heroSettle {
  from {
    transform: scale(1.07);
  }
  to {
    transform: scale(1);
  }
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
      96deg,
      rgba(6, 7, 8, 0.93) 0%,
      rgba(6, 7, 8, 0.7) 38%,
      rgba(6, 7, 8, 0.12) 74%
    ),
    linear-gradient(to top, rgba(6, 7, 8, 0.88), transparent 46%);
}

.hero-rail {
  position: absolute;
  left: max(18px, calc(var(--pad) - 34px));
  bottom: 22vh;
  z-index: 2;
  writing-mode: vertical-rl;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--d-3);
}

.hero-type {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 0 var(--pad) clamp(56px, 12vh, 132px);
}

.hero-type h1 {
  display: block;
  max-width: 17ch;
}

.hero-type h1 span {
  display: block;
  opacity: 0;
  transform: translateY(0.14em);
  animation: lineIn 1.15s var(--e2) both;
}

.hero-type h1 .l1 {
  animation-delay: 0.15s;
}

.hero-type h1 .l2 {
  animation-delay: 0.27s;
}

.hero-type h1 .l3 {
  font-size: 0.5em;
  letter-spacing: -0.025em;
  color: var(--d-2);
  margin-top: 0.42em;
  animation-delay: 0.42s;
}

@keyframes lineIn {
  to {
    opacity: 1;
    transform: none;
  }
}

.hero-type p {
  margin-top: 26px;
  opacity: 0;
  animation: lineIn 1.1s var(--e2) 0.58s both;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
  opacity: 0;
  animation: lineIn 1.1s var(--e2) 0.7s both;
}

/* --------------------------------------------------------------------------
   01 — POSITION + OVERSIZED FIGURES  (light)
   -------------------------------------------------------------------------- */

.position {
  background: var(--paper);
  color: var(--l-1);
  padding-block: var(--band) clamp(64px, 8vh, 120px);
}

.position .eyebrow {
  color: var(--l-3);
}

.position .statement {
  margin-top: 26px;
  max-width: 20ch;
}

.position .statement span {
  color: var(--l-3);
}

.statement-note {
  margin-top: 34px;
  margin-left: auto;
  color: var(--l-2);
  max-width: 46ch;
}

@media (min-width: 900px) {
  .statement-note {
    width: 46ch;
    margin-right: 6%;
  }
}

.figure-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: clamp(20px, 3vw, 60px);
  max-width: var(--shell);
  margin: clamp(56px, 8vw, 120px) auto 0;
  padding-inline: var(--pad);
}

.figure-cell {
  border-top: 1px solid var(--rule-l);
  padding-top: 18px;
}

.figure-cell[data-offset="b"] {
  transform: translateY(26px);
}

.figure-cell[data-offset="c"] {
  transform: translateY(-14px);
}

.figure-cell.in[data-offset="b"] {
  transform: translateY(26px);
}

.figure-cell.in[data-offset="c"] {
  transform: translateY(-14px);
}

.figure-huge {
  display: block;
  font-size: clamp(3.4rem, 9.6vw, 10.5rem);
  font-weight: 600;
  line-height: 0.82;
  letter-spacing: -0.055em;
  font-variant-numeric: tabular-nums;
}

.figure-huge em {
  font-style: normal;
  color: var(--l-3);
  font-weight: 400;
}

.figure-cell > i {
  font-style: normal;
  display: inline-block;
  margin-top: 6px;
  font-size: clamp(0.95rem, 1.5vw, 1.35rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--acc);
}

.figure-label {
  display: block;
  margin-top: 14px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--l-2);
}

.minor-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 3vw, 60px);
  margin-top: clamp(64px, 9vw, 130px);
  border-top: 1px solid var(--rule-l);
  padding-top: 22px;
}

.minor-row b {
  display: block;
  font-size: clamp(1.15rem, 1.7vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.minor-row span {
  display: block;
  margin-top: 7px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--l-3);
}

/* --------------------------------------------------------------------------
   02 — WHAT WE MAKE  (dark, three different compositions)
   -------------------------------------------------------------------------- */

.made {
  background: var(--ink-2);
  padding-top: var(--band);
}

.made-head .statement {
  margin-top: 26px;
}

.made-head .statement span {
  color: var(--d-3);
}

.band {
  position: relative;
  margin-top: clamp(64px, 10vw, 150px);
}

/* A — image left, out to the viewport edge; type overlapping from the right */
.band-a {
  display: grid;
  grid-template-columns: minmax(0, 62vw) minmax(0, 1fr);
  align-items: center;
  gap: 0;
}

.band-a .band-media {
  display: block;
  aspect-ratio: 16 / 10;
}

.band-a .band-type {
  margin-left: -6vw;
  padding: clamp(26px, 3vw, 44px) var(--pad) clamp(26px, 3vw, 44px) clamp(24px, 3vw, 46px);
  background: var(--ink-2);
  position: relative;
  z-index: 2;
}

/* B — type left, tall image to the right edge */
.band-b {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 54vw);
  align-items: center;
  gap: clamp(24px, 4vw, 80px);
}

.band-b .band-type {
  padding-left: var(--pad);
  max-width: 46ch;
  margin-left: auto;
}

.band-b .band-media {
  display: block;
  aspect-ratio: 4 / 3;
}

/* C — full bleed, type overlaid */
.band-c {
  margin-top: clamp(80px, 12vw, 180px);
}

.band-bleed {
  position: relative;
  height: clamp(420px, 82vh, 900px);
}

.band-bleed::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 13, 14, 0.96) 2%, rgba(10, 13, 14, 0.55) 34%, rgba(10, 13, 14, 0.05) 70%);
}

.band-bleed img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(0.76) brightness(0.8);
}

.band-c .band-overlay {
  position: absolute;
  inset: auto 0 0;
  padding-bottom: clamp(34px, 6vh, 74px);
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.band-c-foot {
  display: grid;
  grid-template-columns: minmax(0, 40ch) minmax(0, auto);
  gap: clamp(20px, 4vw, 70px);
  align-items: start;
}

.band-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.5s var(--e1);
}

.band-media:hover img {
  transform: scale(1.04);
}

.band-index {
  display: block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--acc);
  margin-bottom: 18px;
}

.band-type h3,
.band-overlay h3 {
  margin-bottom: 22px;
}

.band-type p {
  color: var(--d-2);
  max-width: 40ch;
  font-size: 15px;
}

.band-overlay p {
  color: var(--d-2);
  font-size: 15px;
}

.band-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0 26px;
  margin-top: 24px;
  border-top: 1px solid var(--rule-d);
  padding-top: 14px;
}

.band-list li {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--d-2);
}

.band-c .band-list {
  border-top: 0;
  padding-top: 0;
  margin-top: 0;
  flex-direction: column;
  gap: 9px;
}

/* material — quiet technical counterpoint */
.material {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 5vw, 110px);
  margin-top: clamp(80px, 12vw, 170px);
  padding-bottom: var(--band);
  align-items: start;
}

.material-lead h4 {
  margin: 20px 0 26px;
}

.material-table {
  border-top: 1px solid var(--rule-d);
}

.material-table > div {
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 1.45fr);
  gap: 20px;
  padding: 17px 0;
  border-bottom: 1px solid var(--rule-d);
}

.material-table dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--d-3);
  padding-top: 3px;
}

.material-table dd {
  font-size: 15px;
  color: var(--d-1);
}

.material-table .strong {
  font-size: clamp(1.15rem, 1.6vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* --------------------------------------------------------------------------
   03 — SIGNATURE (two full-bleed panels, numbers as the picture)
   -------------------------------------------------------------------------- */

.signature {
  background: #06090a;
  padding-bottom: clamp(40px, 6vh, 72px);
}

.sig-panel {
  position: relative;
  min-height: clamp(460px, 86vh, 920px);
  display: grid;
  align-items: center;
  overflow: hidden;
}

.sig-media {
  position: absolute;
  inset: 0;
}

.sig-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.5) contrast(1.14) brightness(0.66);
}

.sig-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    75% 90% at 22% 50%,
    rgba(4, 6, 7, 0.9),
    rgba(4, 6, 7, 0.42) 62%,
    rgba(4, 6, 7, 0.18)
  );
}

.sig-panel-alt::after {
  background: radial-gradient(
    75% 90% at 78% 50%,
    rgba(4, 6, 7, 0.9),
    rgba(4, 6, 7, 0.42) 62%,
    rgba(4, 6, 7, 0.18)
  );
}

.sig-type {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.sig-panel-alt .sig-type {
  text-align: right;
}

.sig-type b {
  display: block;
  font-size: clamp(4rem, 13.5vw, 15rem);
  font-weight: 600;
  line-height: 0.8;
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
}

.sig-type b i {
  font-style: normal;
  font-size: 0.24em;
  letter-spacing: 0;
  color: var(--acc);
  margin-left: 0.08em;
  vertical-align: super;
}

.sig-name {
  display: block;
  margin-top: 26px;
  font-size: clamp(0.95rem, 1.5vw, 1.25rem);
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
}

.sig-type p {
  margin-top: 18px;
  font-size: 14.5px;
  color: var(--d-2);
  max-width: 34ch;
}

.sig-panel-alt .sig-type p {
  margin-left: auto;
}

.sig-note {
  margin-top: clamp(34px, 5vh, 60px);
  color: var(--d-3);
  font-size: 12.5px;
  max-width: 70ch;
}

/* --------------------------------------------------------------------------
   04 — SEQUENCE  (light, index rail + one large image)
   -------------------------------------------------------------------------- */

.sequence {
  background: var(--paper);
  color: var(--l-1);
  padding-block: var(--band);
}

.sequence .eyebrow {
  color: var(--l-3);
}

.sequence-head .statement {
  margin-top: 26px;
}

.sequence-head .statement span {
  color: var(--l-3);
}

.sequence-body {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: clamp(26px, 4vw, 70px);
  align-items: stretch;
  max-width: none;
  margin: clamp(48px, 7vw, 104px) 0 0;
  padding-left: max(var(--pad), calc(50vw - var(--shell) / 2 + var(--pad)));
  padding-right: 0;
}

.sequence-rail {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--rule-l);
}

.sequence-rail button {
  display: grid;
  grid-template-columns: 48px 1fr;
  grid-template-rows: auto auto;
  align-items: baseline;
  text-align: left;
  padding: clamp(16px, 2vw, 26px) 0;
  border-bottom: 1px solid var(--rule-l);
  transition: padding-left 0.5s var(--e1);
  position: relative;
}

.sequence-rail button::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  height: 1px;
  width: 100%;
  background: var(--l-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--e1);
}

.sequence-rail button.active::before {
  transform: scaleX(1);
}

.sequence-rail i {
  grid-row: 1 / span 2;
  font-style: normal;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--l-3);
}

.sequence-rail b {
  font-size: clamp(1.15rem, 1.9vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.026em;
  color: var(--l-2);
  transition: color 0.35s;
}

.sequence-rail em {
  grid-column: 2;
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--l-3);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.6s var(--e1), opacity 0.4s, margin-top 0.5s;
}

.sequence-rail button.active {
  padding-left: 14px;
}

.sequence-rail button.active b {
  color: var(--l-1);
}

.sequence-rail button.active i {
  color: var(--acc);
}

.sequence-rail button.active em {
  max-height: 40px;
  opacity: 1;
  margin-top: 8px;
}

.sequence-rail button:hover b {
  color: var(--l-1);
}

.sequence-media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--paper-2);
  min-height: min(64vh, 660px);
}

.sequence-media img {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  object-fit: cover;
  transition: opacity 0.5s var(--e1), transform 1.6s var(--e1);
}

.sequence-media.swap img {
  opacity: 0;
  transform: scale(1.035);
}

.sequence-media figcaption {
  position: absolute;
  inset: auto 0 0;
  padding: clamp(18px, 2.4vw, 32px);
  background: linear-gradient(to top, rgba(6, 8, 9, 0.88), transparent);
  color: var(--d-1);
  display: grid;
  gap: 6px;
}

.seq-num {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--acc);
}

.seq-title {
  font-size: clamp(1.2rem, 1.8vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.024em;
}

.seq-tag {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--d-2);
}

/* --------------------------------------------------------------------------
   05 — 3D CORE MODEL  (darkest)
   -------------------------------------------------------------------------- */

.core3d {
  background: #050708;
  padding-block: var(--band) clamp(60px, 8vh, 110px);
  position: relative;
}

.core3d-top .statement {
  margin-top: 24px;
}

.core3d-stage {
  position: relative;
  margin: clamp(20px, 4vw, 54px) 0 0;
}

.core3d-viewport {
  position: relative;
  width: 100%;
  max-width: 1500px;
  margin-inline: auto;
  aspect-ratio: 3 / 2;
  min-height: 340px;
  background:
    radial-gradient(60% 55% at 50% 42%, rgba(79, 147, 192, 0.09), transparent 70%),
    linear-gradient(180deg, #0a0e10, #050708 70%);
}

.core3d-viewport canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  touch-action: pan-y;
  cursor: grab;
}

.core3d-viewport canvas.drag {
  cursor: grabbing;
}

.core3d-hotspots {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hotspot {
  position: absolute;
  transform: translate(-50%, -50%);
  pointer-events: auto;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 0.35s;
}

.hotspot.show {
  opacity: 1;
}

.hotspot i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--acc);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.6);
  transition: transform 0.3s var(--e1), background 0.3s;
}

.hotspot::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 1px solid rgba(79, 147, 192, 0.5);
  border-radius: 50%;
  animation: ring 3s var(--e1) infinite;
}

.hotspot.on i,
.hotspot:hover i {
  transform: scale(1.7);
  background: #fff;
}

.hotspot b {
  position: absolute;
  left: 20px;
  white-space: nowrap;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 4px 8px;
  background: rgba(5, 7, 8, 0.85);
  border: 1px solid var(--rule-d);
  color: var(--d-2);
  opacity: 0;
  transition: opacity 0.3s;
}

.hotspot.on b,
.hotspot:hover b {
  opacity: 1;
  color: #fff;
}

@keyframes ring {
  0% {
    transform: scale(0.5);
    opacity: 0.85;
  }
  70%,
  100% {
    transform: scale(1.9);
    opacity: 0;
  }
}

.core3d-fallback[hidden] {
  display: none;
}

.core3d-fallback img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
}

.core3d-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 4vw, 80px);
  margin-top: clamp(28px, 4vw, 54px);
  padding-top: 26px;
  border-top: 1px solid var(--rule-d);
  align-items: start;
}

.core3d-readout h3 {
  margin: 16px 0 14px;
  font-size: clamp(1.4rem, 2.3vw, 2.2rem);
}

.core3d-readout p {
  font-size: 15px;
  color: var(--d-2);
  max-width: 46ch;
}

.core3d-side {
  display: grid;
  gap: 18px;
}

.core3d-views,
.core3d-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.core3d-views button,
.core3d-controls button {
  height: 38px;
  padding: 0 15px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--rule-d);
  border-radius: 2px;
  color: var(--d-2);
  transition: border-color 0.3s, color 0.3s, background 0.3s;
}

.core3d-views button:hover,
.core3d-controls button:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.4);
}

.core3d-views button.is-on,
.core3d-controls button.is-on {
  background: rgba(79, 147, 192, 0.16);
  border-color: rgba(79, 147, 192, 0.55);
  color: #fff;
}

.core3d-hint {
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--d-3);
}

.core3d-specs {
  border-top: 1px solid var(--rule-d);
}

.core3d-specs > div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule-d);
  font-size: 13px;
}

.core3d-specs dt {
  color: var(--d-3);
}

/* --------------------------------------------------------------------------
   06 — PROJECT REFERENCES (full bleed visual peak)
   -------------------------------------------------------------------------- */

.refs {
  background: #050708;
  padding-bottom: clamp(48px, 7vh, 90px);
}

.refs-stage {
  position: relative;
  height: clamp(560px, 96svh, 1060px);
  overflow: hidden;
}

.refs-images {
  position: absolute;
  inset: 0;
}

.refs-images img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0;
  transform: scale(1.05);
  filter: saturate(0.66) contrast(1.06) brightness(0.74);
  transition: opacity 1.15s var(--e1), transform 2.4s var(--e1);
}

.refs-images img.is-active {
  opacity: 1;
  transform: scale(1);
}

.refs-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
      100deg,
      rgba(5, 7, 8, 0.9) 0%,
      rgba(5, 7, 8, 0.58) 42%,
      rgba(5, 7, 8, 0.1) 80%
    ),
    linear-gradient(to top, rgba(5, 7, 8, 0.85), transparent 45%);
}

.refs-type {
  position: absolute;
  inset: auto 0 0;
  z-index: 2;
  padding-bottom: clamp(38px, 7vh, 88px);
}

.refs-figure {
  display: flex;
  align-items: flex-start;
  gap: 0.06em;
  margin-top: 22px;
  line-height: 0.78;
}

.refs-figure b {
  font-size: clamp(4.6rem, 16vw, 17rem);
  font-weight: 600;
  letter-spacing: -0.06em;
  font-variant-numeric: tabular-nums;
  display: inline-block;
}

.refs-figure i {
  font-style: normal;
  font-size: clamp(1.1rem, 2.6vw, 2.6rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--acc);
  margin-top: 0.25em;
}

.refs-figure b,
.refs-figure i,
.refs-name,
.refs-spec {
  transition: opacity 0.4s var(--e1), transform 0.6s var(--e1);
}

.refs-type.swap .refs-figure b,
.refs-type.swap .refs-figure i,
.refs-type.swap .refs-name,
.refs-type.swap .refs-spec {
  opacity: 0;
  transform: translateY(16px);
}

.refs-name {
  margin-top: 20px;
  font-size: clamp(1.05rem, 2vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.refs-spec {
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--d-2);
}

.refs-rail {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  max-width: var(--shell);
  margin: 0 auto;
  padding-inline: var(--pad);
  border-bottom: 1px solid var(--rule-d);
}

.refs-rail button {
  text-align: left;
  padding: clamp(18px, 2.4vw, 30px) 18px clamp(18px, 2.4vw, 30px) 0;
  border-top: 1px solid var(--rule-d);
  position: relative;
  transition: padding-left 0.5s var(--e1);
}

.refs-rail button::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 100%;
  height: 1px;
  background: var(--d-1);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--e1);
}

.refs-rail button.active::before {
  transform: scaleX(1);
}

.refs-rail b {
  display: block;
  font-size: clamp(1.05rem, 1.6vw, 1.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--d-2);
  transition: color 0.35s;
}

.refs-rail span {
  display: block;
  margin-top: 7px;
  font-size: 11px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--d-3);
}

.refs-rail button.active b,
.refs-rail button:hover b {
  color: var(--d-1);
}

.refs-rail button.active {
  padding-left: 12px;
}

.refs-disclaimer {
  margin-top: 26px;
  font-size: 12px;
  color: var(--d-3);
  max-width: 76ch;
}

/* --------------------------------------------------------------------------
   06b — SCALE  (light, 100 t capability picture)
   -------------------------------------------------------------------------- */

.scale {
  background: var(--paper-2);
  color: var(--l-1);
  padding-block: var(--band);
}

.scale .eyebrow {
  color: var(--l-3);
}

.scale-hero {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: clamp(16px, 3vw, 54px);
  margin-top: 30px;
}

.scale-figure {
  font-size: clamp(5rem, 20vw, 21rem);
  font-weight: 600;
  line-height: 0.76;
  letter-spacing: -0.065em;
  font-variant-numeric: tabular-nums;
}

.scale-figure i {
  font-style: normal;
  color: var(--l-3);
}

.scale-caption {
  padding-bottom: clamp(6px, 1.4vw, 26px);
}

.scale-caption span {
  display: block;
  font-size: clamp(1rem, 1.9vw, 1.6rem);
  font-weight: 600;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--acc);
}

.scale-caption h2 {
  margin-top: 12px;
  font-size: clamp(1.4rem, 2.6vw, 2.5rem);
  letter-spacing: -0.03em;
}

.scale-points {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(22px, 3.4vw, 64px);
  margin-top: clamp(48px, 7vw, 96px);
}

.scale-points > div {
  border-top: 1px solid var(--rule-l);
  padding-top: 18px;
}

.scale-points .eyebrow {
  color: var(--l-2);
  margin-bottom: 12px;
}

.scale-points p {
  font-size: 14.5px;
  color: var(--l-2);
  max-width: 34ch;
}

/* --------------------------------------------------------------------------
   07 — QUALITY (light, typography + one bleeding image)
   -------------------------------------------------------------------------- */

.quality {
  background: var(--paper);
  color: var(--l-1);
  padding-block: var(--band);
  overflow: hidden;
}

.quality .eyebrow {
  color: var(--l-3);
}

.quality-head .statement {
  margin-top: 26px;
}

.quality-head .statement span {
  color: var(--l-3);
}

.quality-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.52fr);
  gap: clamp(28px, 5vw, 90px);
  align-items: end;
  max-width: calc(var(--shell) + 12vw);
  margin: clamp(48px, 7vw, 100px) auto 0;
  padding-left: var(--pad);
}

.quality-list {
  border-top: 1px solid var(--rule-l);
}

.quality-list li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 0 14px;
  padding: clamp(18px, 2.2vw, 28px) 0;
  border-bottom: 1px solid var(--rule-l);
}

.quality-list i {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--acc);
  padding-top: 7px;
}

.quality-list b {
  font-size: clamp(1.1rem, 1.85vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.026em;
}

.quality-list em {
  grid-column: 2;
  font-style: normal;
  display: block;
  margin-top: 8px;
  font-size: 14px;
  color: var(--l-2);
  max-width: 54ch;
}

.quality-media {
  height: clamp(320px, 62vh, 700px);
  margin-right: calc(var(--pad) * -1);
}

.quality-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

.quality-foot {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(24px, 4vw, 80px);
  align-items: start;
  margin-top: clamp(44px, 6vw, 80px);
  padding-top: 24px;
  border-top: 1px solid var(--rule-l);
}

.quality-foot strong {
  display: block;
  margin-top: 10px;
  font-size: clamp(1.2rem, 1.9vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.doc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
}

.doc-list li {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--l-2);
  padding: 0 18px;
  border-left: 1px solid var(--rule-l);
}

.doc-list li:first-child {
  padding-left: 0;
  border-left: 0;
}

.quality-foot .note {
  grid-column: 2;
  color: var(--l-3);
}

/* --------------------------------------------------------------------------
   EXPORT (slim dark band)
   -------------------------------------------------------------------------- */

.export {
  position: relative;
  background: var(--ink);
  min-height: clamp(420px, 66vh, 700px);
  display: grid;
  align-items: center;
  overflow: hidden;
}

.export-bleed {
  position: absolute;
  inset: 0;
}

.export-bleed img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.6) brightness(0.62);
}

.export::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(95deg, rgba(8, 10, 11, 0.9) 0%, rgba(8, 10, 11, 0.5) 52%, rgba(8, 10, 11, 0.12));
}

.export-inner {
  position: relative;
  z-index: 2;
  padding-block: clamp(50px, 8vh, 90px);
}

.export-inner h2 {
  font-size: clamp(1.7rem, 4vw, 4rem);
  letter-spacing: -0.035em;
}

.export-inner h2 span {
  color: var(--d-3);
}

.export-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 0;
  margin: clamp(28px, 4vw, 48px) 0 24px;
}

.export-list li {
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--d-2);
  padding: 0 20px;
  border-left: 1px solid var(--rule-d);
}

.export-list li:first-child {
  padding-left: 0;
  border-left: 0;
}

/* --------------------------------------------------------------------------
   08 — CLOSE / CONVERSION
   -------------------------------------------------------------------------- */

.close {
  background: #050708;
  padding-block: clamp(110px, 17vh, 240px);
  border-top: 1px solid var(--rule-d);
}

.close-title {
  margin-top: 26px;
  font-size: clamp(3rem, 11vw, 12rem);
  line-height: 0.86;
  letter-spacing: -0.05em;
}

.close-lead {
  margin-top: 34px;
  font-size: clamp(1.02rem, 1.3vw, 1.25rem);
  color: var(--d-2);
  max-width: 44ch;
}

.close-cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(22px, 4vw, 60px);
  margin-top: clamp(40px, 6vw, 70px);
}

.close-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 34px;
}

.close-inputs {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin-top: clamp(56px, 9vw, 110px);
  border-top: 1px solid var(--rule-d);
}

.close-inputs li {
  padding: 22px 16px 22px 0;
  border-right: 1px solid var(--rule-d);
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.close-inputs li:last-child {
  border-right: 0;
}

.close-inputs i {
  display: block;
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--acc);
  margin-bottom: 14px;
}

.close-inputs span {
  display: block;
  margin-top: 5px;
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--d-3);
}

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */

.foot {
  background: var(--paper);
  color: var(--l-1);
  padding-top: clamp(56px, 8vh, 100px);
  overflow: hidden;
}

.foot-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 4vw, 70px);
  align-items: start;
}

.brand-on-light .brand-mark {
  height: 40px;
  filter: invert(1);
}

.brand-on-light .brand-word {
  height: 12px;
  filter: invert(1);
}

.foot-brand p {
  margin-top: 22px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--l-2);
}

.foot-nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px 20px;
}

.foot-nav a {
  padding: 8px 0;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--l-2);
  transition: color 0.3s, padding-left 0.3s var(--e1);
}

.foot-nav a:hover {
  color: var(--l-1);
  padding-left: 5px;
}

.foot-wordmark {
  margin: clamp(46px, 7vw, 92px) 0 0;
  padding-inline: var(--pad);
  font-size: clamp(1.8rem, 5.6vw, 7rem);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.05em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(13, 16, 17, 0.18);
  white-space: nowrap;
}

.foot-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  padding-block: 24px;
  border-top: 1px solid var(--rule-l);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--l-3);
  margin-top: 26px;
}

/* --------------------------------------------------------------------------
   DIALOGS
   -------------------------------------------------------------------------- */

.dialog {
  width: min(1020px, calc(100vw - 28px));
  max-height: min(88vh, 940px);
  padding: clamp(24px, 3vw, 46px);
  border: 1px solid var(--rule-d);
  border-radius: 3px;
  background: var(--ink-2);
  color: var(--d-1);
  overflow: auto;
}

.dialog::backdrop {
  background: rgba(4, 5, 6, 0.82);
}

.dialog-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--rule-d);
  margin-bottom: clamp(24px, 3vw, 38px);
}

.dialog h2 {
  font-size: clamp(1.6rem, 3.2vw, 2.6rem);
}

.dialog-close {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  font-size: 22px;
  line-height: 1;
  border: 1px solid var(--rule-d);
  border-radius: 2px;
  color: var(--d-2);
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}

.dialog-close:hover {
  background: var(--paper);
  border-color: var(--paper);
  color: var(--l-1);
}

.dialog-lead {
  margin-top: 18px;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(22px, 3vw, 44px);
  margin: clamp(26px, 3vw, 42px) 0 24px;
}

.spec-grid h3 {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--acc);
  padding-bottom: 11px;
  border-bottom: 1px solid var(--rule-d);
  margin-bottom: 14px;
}

.spec-grid dt {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--d-3);
  margin-top: 14px;
}

.spec-grid dd {
  font-size: 14px;
  margin-top: 5px;
}

.rfq-dialog .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: clamp(24px, 3vw, 36px) 0 26px;
}

.rfq-dialog label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--d-3);
}

.rfq-dialog label.full {
  grid-column: 1 / -1;
}

.rfq-dialog input,
.rfq-dialog select,
.rfq-dialog textarea {
  font: inherit;
  font-size: 14.5px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--d-1);
  background: #0a0d0e;
  border: 1px solid var(--rule-d);
  border-radius: 2px;
  padding: 12px 13px;
  transition: border-color 0.3s;
}

.rfq-dialog textarea {
  resize: vertical;
}

.rfq-dialog input:focus,
.rfq-dialog select:focus,
.rfq-dialog textarea:focus {
  outline: none;
  border-color: rgba(79, 147, 192, 0.6);
}

.rfq-dialog small {
  font-size: 11px;
  letter-spacing: 0;
  text-transform: none;
  color: var(--d-3);
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
}

.form-status {
  font-size: 13px;
  color: var(--acc);
}

.noscript-note {
  padding: 15px var(--pad);
  background: var(--acc);
  color: #06090a;
  font-size: 13.5px;
}

/* ==========================================================================
   TABLET
   ========================================================================== */

@media (max-width: 1080px) {
  .nav-desktop,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }

  .band-a,
  .band-b {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .band-a .band-media,
  .band-b .band-media {
    aspect-ratio: 16 / 10;
  }

  .band-a .band-type,
  .band-b .band-type {
    margin: -14vw var(--pad) 0;
    padding: 0;
    max-width: none;
    position: relative;
    z-index: 2;
    background: linear-gradient(to bottom, rgba(16, 19, 20, 0.92) 0%, var(--ink-2) 22%);
    padding-top: 26px;
  }

  .band-b {
    display: flex;
    flex-direction: column-reverse;
  }

  .material,
  .sequence-body,
  .quality-body,
  .core3d-foot,
  .foot-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .sequence-body,
  .quality-body {
    padding-left: 0;
  }

  .sequence-rail,
  .quality-list {
    padding-inline: var(--pad);
  }

  .sequence-media {
    min-height: 60vw;
    margin-inline: var(--pad);
  }

  .quality-media {
    height: 70vw;
    margin: 0 var(--pad);
  }

  .figure-row,
  .minor-row,
  .scale-points {
    grid-template-columns: 1fr 1fr;
  }

  .figure-cell[data-offset="b"],
  .figure-cell[data-offset="c"],
  .figure-cell.in[data-offset="b"],
  .figure-cell.in[data-offset="c"] {
    transform: none;
  }

  .close-inputs {
    grid-template-columns: repeat(3, 1fr);
  }

  .close-inputs li:nth-child(3n) {
    border-right: 0;
  }

  .foot-nav {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ==========================================================================
   MOBILE — rebuilt, not shrunk
   ========================================================================== */

@media (max-width: 720px) {
  :root {
    --pad: 20px;
    --band: 72px;
  }

  /* no blur on mobile Safari */
  .masthead.solid {
    background: var(--ink);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .masthead-inner {
    padding-block: 13px;
  }

  .brand-mark {
    height: 26px;
  }

  .brand-word {
    height: 8.5px;
  }

  /* hero: type-led, no rail, taller image crop */
  .hero {
    min-height: 92svh;
  }

  .hero-rail {
    display: none;
  }

  .hero-frame {
    inset: 0;
  }

  .hero-frame img {
    object-position: center 52%;
    animation: none;
  }

  .hero::after {
    background: linear-gradient(to top, rgba(6, 7, 8, 0.95) 0%, rgba(6, 7, 8, 0.6) 46%, rgba(6, 7, 8, 0.32));
  }

  h1 {
    font-size: clamp(2.5rem, 12.5vw, 3.4rem);
    letter-spacing: -0.038em;
  }

  .hero-type h1 .l3 {
    font-size: 0.46em;
    margin-top: 0.5em;
  }

  .hero-type p {
    margin-top: 20px;
    font-size: 15px;
  }

  .hero-cta {
    margin-top: 26px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .btn {
    justify-content: center;
    height: 50px;
  }

  /* figures stack, one per row, full-width rule */
  .figure-row,
  .minor-row,
  .scale-points,
  .close-inputs,
  .spec-grid,
  .rfq-dialog .form-grid,
  .refs-rail,
  .foot-nav {
    grid-template-columns: 1fr;
  }

  .figure-row {
    gap: 30px;
    margin-top: 46px;
  }

  .figure-huge {
    font-size: clamp(3.2rem, 21vw, 5rem);
  }

  .minor-row {
    gap: 22px;
    margin-top: 54px;
  }

  .statement-note {
    margin-top: 26px;
  }

  /* bands: full-bleed image then type, no overlap */
  .band {
    margin-top: 56px;
  }

  .band-a .band-media,
  .band-b .band-media {
    aspect-ratio: 4 / 3;
  }

  .band-a .band-type,
  .band-b .band-type {
    margin: 22px var(--pad) 0;
    background: none;
    padding-top: 0;
  }

  .band-bleed {
    height: 68svh;
  }

  .band-c .band-overlay {
    padding-bottom: 28px;
  }

  .band-c-foot {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .band-c .band-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0 20px;
  }

  .band-list {
    gap: 0 18px;
  }

  .material {
    gap: 30px;
    margin-top: 60px;
  }

  .material-table > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  /* signature: two shorter panels, numbers still huge */
  .sig-panel {
    min-height: 74svh;
  }

  .sig-panel-alt .sig-type,
  .sig-panel-alt .sig-type p {
    text-align: left;
    margin-left: 0;
  }

  .sig-type b {
    font-size: clamp(3.6rem, 23vw, 6rem);
  }

  .sig-name {
    margin-top: 18px;
    font-size: 13px;
    letter-spacing: 0.2em;
  }

  .sig-panel::after,
  .sig-panel-alt::after {
    background: linear-gradient(to top, rgba(4, 6, 7, 0.94) 10%, rgba(4, 6, 7, 0.55) 60%, rgba(4, 6, 7, 0.3));
  }

  /* sequence becomes a swipe strip + image on top */
  .sequence-body {
    display: flex;
    flex-direction: column-reverse;
    gap: 22px;
    margin-top: 40px;
  }

  .sequence-media {
    min-height: 88vw;
    margin-inline: 0;
  }

  .sequence-rail {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    border-top: 0;
    gap: 0;
    padding-inline: var(--pad);
    scrollbar-width: none;
  }

  .sequence-rail::-webkit-scrollbar {
    display: none;
  }

  .sequence-rail button {
    flex: 0 0 68vw;
    scroll-snap-align: start;
    grid-template-columns: 34px 1fr;
    border-top: 1px solid var(--rule-l);
    border-bottom: 0;
    padding: 14px 18px 16px 0;
  }

  .sequence-rail button.active {
    padding-left: 0;
  }

  .sequence-rail em {
    max-height: 40px;
    opacity: 1;
    margin-top: 6px;
  }

  /* 3D: taller viewport, controls stack */
  .core3d-viewport {
    aspect-ratio: 1 / 1;
    min-height: 0;
  }

  .core3d-foot {
    gap: 26px;
  }

  .hotspot b {
    display: none;
  }

  .hotspot::after {
    animation: none;
  }

  /* projects: tall stage, number scaled, rail scroll-snap */
  .refs-stage {
    height: 88svh;
  }

  .refs-images img {
    object-position: center 46%;
  }

  .refs-figure b {
    font-size: clamp(4.2rem, 27vw, 7rem);
  }

  .refs-name {
    margin-top: 14px;
    font-size: 13px;
    letter-spacing: 0.16em;
  }

  .refs-rail {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .refs-rail::-webkit-scrollbar {
    display: none;
  }

  .refs-rail button {
    flex: 0 0 58vw;
    scroll-snap-align: start;
    padding: 16px 16px 16px 0;
  }

  .refs-rail button.active {
    padding-left: 0;
  }

  /* scale */
  .scale-figure {
    font-size: clamp(4.6rem, 32vw, 8rem);
  }

  .scale-hero {
    gap: 14px;
  }

  .scale-caption span {
    font-size: 13px;
    letter-spacing: 0.22em;
  }

  .scale-points {
    gap: 26px;
    margin-top: 48px;
  }

  /* quality */
  .quality-body {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 26px;
  }

  .quality-media {
    order: -1;
    width: 100%;
    height: 78vw;
    margin: 0;
  }

  .quality-list {
    padding-inline: var(--pad);
  }

  .quality-list li {
    grid-template-columns: 34px 1fr;
  }

  .quality-foot {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .quality-foot .note {
    grid-column: 1;
  }

  .doc-list {
    flex-direction: column;
    gap: 9px;
  }

  .doc-list li {
    padding: 0;
    border-left: 0;
  }

  /* export */
  .export {
    min-height: 0;
  }

  .export-list {
    flex-direction: column;
    gap: 9px;
    margin-block: 24px 20px;
  }

  .export-list li {
    padding: 0;
    border-left: 0;
  }

  /* close */
  .close {
    padding-block: 86px;
  }

  .close-title {
    font-size: clamp(3rem, 19vw, 5rem);
  }

  .close-cta {
    flex-direction: column;
    align-items: stretch;
    gap: 26px;
  }

  .close-links {
    flex-direction: column;
    gap: 16px;
  }

  .close-inputs li {
    border-right: 0;
    border-bottom: 1px solid var(--rule-d);
    padding: 16px 0;
  }

  .close-inputs i {
    display: inline-block;
    margin: 0 12px 0 0;
  }

  .close-inputs span {
    display: inline;
    margin-left: 8px;
  }

  /* footer */
  .foot-wordmark {
    white-space: normal;
    font-size: clamp(1.7rem, 11vw, 3rem);
    -webkit-text-stroke-width: 0.8px;
  }

  .foot-nav a {
    padding: 9px 0;
  }

  .dialog {
    padding: 20px 18px;
    max-height: 92vh;
  }
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

  .media-reveal img {
    clip-path: none;
    transform: none;
  }

  .hero-type h1 span,
  .hero-type p,
  .hero-cta {
    opacity: 1;
    transform: none;
  }
}