:root {
  color-scheme: dark;
  --bg: #070809;
  --ink: #f2f1ec;
  --muted: #979b9d;
  --line: rgba(255, 255, 255, 0.16);
  --panel: #101214;
  --acid: #ff5b26;
  --ice: #9bdcff;
  --paper: #e9e8e2;
  --paper-ink: #111315;
  --pad: clamp(22px, 4.1vw, 72px);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body,
button,
input,
select,
textarea {
  font: inherit;
}

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

button,
input,
select,
textarea {
  color: inherit;
}

button,
select {
  cursor: pointer;
}

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  padding: 12px 18px;
  transform: translateY(-150%);
  background: var(--paper);
  color: var(--paper-ink);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 78px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 30px;
  padding: 0 var(--pad);
  border-bottom: 1px solid transparent;
  transition: background 220ms ease, border-color 220ms ease, min-height 220ms ease;
}

.site-header.is-scrolled,
.site-header.is-solid {
  min-height: 64px;
  border-color: var(--line);
  background: rgba(7, 8, 9, 0.92);
  backdrop-filter: blur(18px);
}

.brand {
  width: max-content;
  display: inline-flex;
  align-items: center;
  gap: 13px;
  text-transform: uppercase;
  letter-spacing: 0.13em;
}

.brand b {
  font-size: 20px;
  letter-spacing: -0.03em;
}

.brand span {
  width: 1px;
  height: 25px;
  background: rgba(255, 255, 255, 0.5);
}

.brand strong {
  font-size: 13px;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.site-header nav a,
.header-cta {
  position: relative;
  padding: 10px 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.site-header nav a::after,
.header-cta::after {
  position: absolute;
  right: 0;
  bottom: 3px;
  left: 0;
  height: 1px;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  background: currentColor;
  transition: transform 180ms ease;
}

.site-header nav a:hover::after,
.header-cta:hover::after {
  transform: scaleX(1);
}

.header-cta {
  justify-self: end;
  color: #fff;
}

.menu-button,
.mobile-menu {
  display: none;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background: #090b0e;
}

.hero-image,
.hero-overlay,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-image {
  z-index: -3;
  object-fit: cover;
  object-position: center center;
}

.hero-overlay {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(3, 5, 7, 0.94) 0%, rgba(3, 5, 7, 0.7) 37%, rgba(3, 5, 7, 0.08) 75%),
    linear-gradient(0deg, rgba(3, 5, 7, 0.82) 0%, transparent 40%, rgba(3, 5, 7, 0.28) 100%);
}

.hero-grid {
  z-index: -1;
  opacity: 0.28;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 8.33vw 8.33vw;
  mask-image: linear-gradient(90deg, #000 0%, transparent 68%);
}

.hero-copy {
  width: min(920px, 74vw);
  padding: clamp(150px, 19vh, 220px) var(--pad) 130px;
}

.eyebrow,
.section-index {
  margin: 0 0 28px;
  color: #c5c7c8;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
}

.eyebrow span {
  width: 36px;
  height: 2px;
  background: var(--acid);
}

.hero h1 {
  max-width: 940px;
  margin: 0;
  font-size: clamp(58px, 8.2vw, 148px);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.82;
}

.hero h1 em,
.intro h2 em,
.request h2 em {
  color: var(--acid);
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
}

.hero-lead {
  max-width: 630px;
  margin: 40px 0 0;
  color: rgba(255, 255, 255, 0.75);
  font-size: clamp(16px, 1.3vw, 21px);
  line-height: 1.52;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 40px;
}

.button {
  min-height: 54px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 34px;
  padding: 0 22px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: transparent;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button-primary {
  border-color: var(--acid);
  background: var(--acid);
  color: #090807;
}

.button:hover {
  border-color: #fff;
  background: #fff;
  color: #070809;
}

.hero-timer {
  position: absolute;
  right: var(--pad);
  bottom: 84px;
  width: clamp(230px, 19vw, 360px);
  padding: 22px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.45);
}

.hero-timer span,
.hero-timer p,
.hero-note {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-timer strong {
  display: block;
  margin-top: 5px;
  font-size: clamp(74px, 9vw, 148px);
  font-weight: 300;
  letter-spacing: -0.09em;
  line-height: 0.9;
}

.hero-timer small {
  margin-left: 8px;
  color: var(--acid);
  font-size: 0.22em;
  letter-spacing: 0;
}

.hero-timer p {
  margin: 10px 0 0;
  color: rgba(255, 255, 255, 0.58);
}

.hero-note {
  position: absolute;
  bottom: 28px;
  left: var(--pad);
  color: rgba(255, 255, 255, 0.46);
}

.signal {
  min-height: 50px;
  display: flex;
  align-items: center;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #0b0d0f;
}

.signal > p {
  flex: 0 0 auto;
  align-self: stretch;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0 24px 0 var(--pad);
  border-right: 1px solid var(--line);
  color: var(--acid);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.signal-track {
  min-width: max-content;
  display: flex;
  gap: 54px;
  padding: 0 28px;
  color: #b2b4b5;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: ticker 36s linear infinite alternate;
}

@keyframes ticker {
  to { transform: translateX(-22%); }
}

.section {
  padding: clamp(84px, 10vw, 170px) var(--pad);
}

.intro {
  display: grid;
  grid-template-columns: 0.35fr 1.35fr 0.8fr;
  gap: 50px;
  background: var(--paper);
  color: var(--paper-ink);
}

.intro .section-index,
.cars .section-index,
.china .section-index,
.sources .section-index,
.legal-content .section-index {
  color: #6c6d6c;
}

.intro h2,
.section-head h2,
.engineering-copy h2,
.request h2,
.sources h2 {
  margin: 0;
  font-size: clamp(44px, 5.8vw, 104px);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.92;
}

.intro-copy {
  padding-top: 6px;
}

.intro-copy p {
  margin: 0 0 24px;
  color: #4e5152;
  font-size: clamp(15px, 1.15vw, 19px);
  line-height: 1.62;
}

.cars {
  background: #d6d5cf;
  color: var(--paper-ink);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(260px, 0.5fr);
  align-items: end;
  gap: 50px;
  margin-bottom: 56px;
}

.section-head h2 {
  max-width: 980px;
}

.section-head > p {
  max-width: 430px;
  justify-self: end;
  margin: 0;
  color: #5d6061;
  font-size: 14px;
  line-height: 1.55;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.filters button {
  min-height: 40px;
  padding: 0 17px;
  border: 1px solid rgba(17, 19, 21, 0.28);
  border-radius: 999px;
  background: transparent;
  color: #37393a;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.filters button:hover,
.filters button.is-active {
  border-color: #111315;
  background: #111315;
  color: #fff;
}

.filters span {
  margin-left: 5px;
  color: #8b8d8e;
}

.car-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: #969791;
  border: 1px solid #969791;
}

.car-card {
  --tone: #16191c;
  --glow: rgba(155, 220, 255, 0.22);
  position: relative;
  min-height: clamp(460px, 42vw, 690px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: clamp(24px, 3vw, 48px);
  background:
    radial-gradient(circle at 82% 55%, var(--glow), transparent 33%),
    linear-gradient(135deg, var(--tone), #090a0b 78%);
  color: #f3f2ed;
}

.car-card::before {
  position: absolute;
  z-index: 0;
  right: -0.08em;
  bottom: -0.25em;
  content: attr(data-model);
  width: 165%;
  opacity: 0.04;
  color: #fff;
  font-size: clamp(96px, 14vw, 250px);
  font-weight: 700;
  letter-spacing: -0.09em;
  line-height: 0.78;
  text-align: right;
  text-transform: uppercase;
  white-space: normal;
}

.car-card.is-hidden {
  display: none;
}

.car-card:nth-child(3n) {
  min-height: clamp(520px, 47vw, 760px);
}

.card-top,
.card-body {
  position: relative;
  z-index: 2;
}

.card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 30px;
}

.card-top span,
.card-body > p {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.card-top i {
  color: var(--acid);
  font-size: clamp(42px, 5vw, 78px);
  font-style: normal;
  font-weight: 300;
  letter-spacing: -0.07em;
  line-height: 0.8;
}

.card-top i::after {
  content: " s";
  font-size: 0.23em;
  font-weight: 700;
  letter-spacing: 0;
}

.card-body > p {
  color: rgba(255, 255, 255, 0.58);
}

.card-body h3 {
  max-width: 720px;
  margin: 16px 0 32px;
  font-size: clamp(46px, 5.1vw, 92px);
  font-weight: 400;
  letter-spacing: -0.065em;
  line-height: 0.87;
}

.card-body button {
  padding: 0 0 8px;
  border: 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  background: transparent;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.card-body button b {
  margin-left: 18px;
  font-size: 16px;
  transition: transform 160ms ease;
}

.card-body button:hover b {
  display: inline-block;
  transform: translate(4px, -4px);
}

.card-battista { --tone: #27231d; --glow: rgba(207, 179, 113, 0.25); }
.card-hyptec { --tone: #141414; --glow: rgba(255, 91, 38, 0.32); }
.card-xiaomi { --tone: #111827; --glow: rgba(42, 122, 255, 0.3); }
.card-yu7 { --tone: #171d18; --glow: rgba(144, 214, 110, 0.25); }
.card-ferrari { --tone: #251010; --glow: rgba(220, 28, 35, 0.32); }
.card-yangwang { --tone: #1a131f; --glow: rgba(166, 93, 255, 0.25); }
.card-revuelto { --tone: #202014; --glow: rgba(221, 227, 63, 0.24); }
.card-valhalla { --tone: #14201b; --glow: rgba(72, 206, 134, 0.22); }
.card-w1 { --tone: #211910; --glow: rgba(255, 144, 48, 0.27); }
.card-zeekr { --tone: #171917; --glow: rgba(190, 255, 76, 0.24); }
.card-audi { --tone: #151a1f; --glow: rgba(124, 187, 229, 0.25); }
.card-maserati { --tone: #101923; --glow: rgba(59, 122, 190, 0.3); }
.card-temerario { --tone: #231714; --glow: rgba(246, 103, 52, 0.28); }
.card-im { --tone: #17142a; --glow: rgba(114, 94, 255, 0.3); }
.card-emeya { --tone: #191317; --glow: rgba(210, 40, 83, 0.26); }
.card-u7 { --tone: #171418; --glow: rgba(142, 92, 191, 0.28); }
.card-eletre { --tone: #101a18; --glow: rgba(44, 183, 143, 0.26); }

.card-image {
  min-height: clamp(560px, 52vw, 840px);
}

.card-image > img,
.card-shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.card-image > img {
  z-index: 0;
  object-fit: cover;
  transition: transform 700ms cubic-bezier(0.2, 0.6, 0.2, 1);
}

.card-image:hover > img {
  transform: scale(1.025);
}

.card-shade {
  z-index: 1;
  background: linear-gradient(0deg, rgba(4, 5, 6, 0.94), rgba(4, 5, 6, 0.1) 64%, rgba(4, 5, 6, 0.56));
}

.card-porsche img { object-position: 48% center; }
.card-evija img { object-position: 52% center; }

.three-seconds {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  min-height: 860px;
  background: #0b0d0f;
}

.engineering-visual {
  position: relative;
  min-height: 720px;
  overflow: hidden;
}

.engineering-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.engineering-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(0deg, rgba(5, 6, 7, 0.55), transparent 55%);
}

.engineering-visual span {
  position: absolute;
  z-index: 2;
  bottom: 28px;
  left: 30px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.engineering-copy {
  padding: clamp(60px, 7vw, 120px) var(--pad);
}

.engineering-copy h2 {
  max-width: 720px;
  font-size: clamp(43px, 4.5vw, 80px);
}

.engineering-copy .lead {
  max-width: 680px;
  margin: 36px 0 54px;
  color: #a9acad;
  font-size: clamp(16px, 1.2vw, 20px);
  line-height: 1.6;
}

.engineering-list {
  border-top: 1px solid var(--line);
}

.engineering-list article {
  display: grid;
  grid-template-columns: 50px 1fr;
  gap: 22px;
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
}

.engineering-list span {
  color: var(--acid);
  font-size: 10px;
  font-weight: 700;
}

.engineering-list h3 {
  margin: 0 0 7px;
  font-size: 18px;
  font-weight: 500;
}

.engineering-list p {
  margin: 0;
  color: #85898a;
  font-size: 13px;
  line-height: 1.55;
}

.china {
  background: var(--paper);
  color: var(--paper-ink);
}

.china-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid #999a95;
  border-left: 1px solid #999a95;
}

.china-grid article {
  min-height: 430px;
  display: flex;
  flex-direction: column;
  padding: 32px;
  border-right: 1px solid #999a95;
  border-bottom: 1px solid #999a95;
}

.china-grid span {
  color: #707272;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.china-grid strong {
  margin: auto 0 0;
  color: rgba(17, 19, 21, 0.08);
  font-size: clamp(90px, 11vw, 210px);
  letter-spacing: -0.11em;
  line-height: 0.7;
}

.china-grid h3 {
  margin: 28px 0 14px;
  font-size: clamp(34px, 3vw, 56px);
  font-weight: 500;
  letter-spacing: -0.055em;
}

.china-grid p {
  max-width: 410px;
  margin: 0;
  color: #545758;
  font-size: 14px;
  line-height: 1.55;
}

.delivery {
  background: #111315;
}

.light-head .section-index,
.delivery .section-index {
  color: #979b9d;
}

.light-head > p {
  color: #a3a6a7;
}

.delivery-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  list-style: none;
}

.delivery-steps li {
  min-height: 310px;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.delivery-steps span {
  color: var(--acid);
  font-size: 11px;
  font-weight: 700;
}

.delivery-steps h3 {
  margin: 105px 0 14px;
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.04em;
}

.delivery-steps p,
.delivery-note p {
  margin: 0;
  color: #95999a;
  font-size: 13px;
  line-height: 1.58;
}

.delivery-note {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 30px;
  margin-top: 26px;
  padding: 25px 0;
  border-top: 1px solid var(--line);
}

.delivery-note b {
  color: var(--acid);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.delivery-note p {
  max-width: 760px;
}

.request {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(50px, 8vw, 140px);
  background: #dbe7eb;
  color: var(--paper-ink);
}

.request-heading p:last-child {
  max-width: 570px;
  margin: 36px 0 0;
  color: #535758;
  font-size: 17px;
  line-height: 1.6;
}

.request-form {
  align-self: end;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px 22px;
}

.request-form label:not(.honeypot) {
  display: block;
}

.request-form label > span {
  display: block;
  margin-bottom: 9px;
  color: #6b7072;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.request-form input,
.request-form select,
.request-form textarea {
  width: 100%;
  min-height: 54px;
  padding: 13px 0;
  border: 0;
  border-bottom: 1px solid #8b9294;
  border-radius: 0;
  outline: 0;
  background: transparent;
  color: #111315;
  font-size: 17px;
}

.request-form textarea {
  resize: vertical;
}

.request-form input:focus,
.request-form select:focus,
.request-form textarea:focus {
  border-color: var(--acid);
}

.request-form .form-wide {
  grid-column: 1 / -1;
}

.form-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.form-bottom p {
  max-width: 330px;
  margin: 0;
  color: #747a7c;
  font-size: 11px;
  line-height: 1.5;
}

.form-bottom p a {
  text-decoration: underline;
}

.form-bottom .button {
  flex: 0 0 auto;
}

.honeypot {
  position: absolute;
  left: -10000px;
}

.sources {
  display: grid;
  grid-template-columns: 0.35fr 0.8fr 0.85fr;
  gap: 50px;
  background: var(--paper);
  color: var(--paper-ink);
}

.sources h2 {
  font-size: clamp(42px, 4vw, 72px);
}

.sources div > p {
  max-width: 560px;
  color: #5b5e5f;
  font-size: 14px;
  line-height: 1.55;
}

.sources details {
  border-top: 1px solid #8e908e;
}

.sources summary {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  list-style: none;
  text-transform: uppercase;
  cursor: pointer;
}

.sources summary::-webkit-details-marker { display: none; }
.sources details[open] summary span { transform: rotate(45deg); }

.sources ul {
  columns: 2;
  margin: 6px 0 0;
  padding: 0 0 0 18px;
  color: #555859;
  font-size: 12px;
  line-height: 1.8;
}

.sources a:hover {
  color: var(--acid);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr 1.2fr 0.8fr;
  align-items: start;
  gap: 35px;
  padding: 52px var(--pad) 30px;
  border-top: 1px solid var(--line);
  background: #070809;
}

.site-footer > p {
  max-width: 430px;
  margin: 0;
  color: #777b7c;
  font-size: 13px;
  line-height: 1.5;
}

.site-footer > div {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-footer small {
  grid-column: 1 / -1;
  margin-top: 50px;
  color: #525657;
  font-size: 10px;
}

.toast {
  position: fixed;
  z-index: 90;
  right: 24px;
  bottom: 24px;
  width: min(430px, calc(100vw - 48px));
  padding: 18px 20px;
  transform: translateY(160%);
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: #15181a;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.42);
  color: #fff;
  font-size: 13px;
  line-height: 1.5;
  transition: transform 250ms ease;
}

.toast.is-visible { transform: translateY(0); }
.toast.is-error { border-color: #e2613a; }
.toast a { text-decoration: underline; }

.legal-page {
  background: var(--paper);
  color: var(--paper-ink);
}

.legal-content {
  max-width: 980px;
  min-height: 80vh;
  margin: 0 auto;
  padding: 150px 30px 100px;
}

.legal-content h1 {
  margin: 0 0 55px;
  font-size: clamp(48px, 7vw, 100px);
  font-weight: 500;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.legal-content h2 {
  margin: 42px 0 10px;
  font-size: 22px;
}

.legal-content p {
  max-width: 760px;
  color: #4f5354;
  font-size: 16px;
  line-height: 1.65;
}

.legal-content a { color: #c83e13; text-decoration: underline; }
.legal-updated { margin-top: 55px; font-size: 12px !important; }

@media (max-width: 1100px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .header-cta { margin-left: auto; }
  .intro { grid-template-columns: 0.25fr 1.15fr 0.75fr; gap: 30px; }
  .three-seconds { grid-template-columns: 1fr; }
  .engineering-visual { min-height: 650px; }
  .china-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .delivery-steps { grid-template-columns: repeat(3, 1fr); }
  .delivery-steps li { min-height: 260px; }
  .delivery-steps h3 { margin-top: 70px; }
  .sources { grid-template-columns: 0.25fr 0.8fr 0.95fr; gap: 28px; }
}

@media (max-width: 760px) {
  :root { --pad: 20px; }

  .site-header {
    min-height: 64px;
    grid-template-columns: 1fr auto;
    background: rgba(7, 8, 9, 0.72);
    backdrop-filter: blur(14px);
  }

  .site-header .header-cta { display: none; }

  .menu-button {
    width: 42px;
    height: 42px;
    display: grid;
    place-content: center;
    gap: 6px;
    padding: 0;
    border: 0;
    background: transparent;
  }

  .menu-button span {
    width: 22px;
    height: 1px;
    background: #fff;
    transition: transform 180ms ease;
  }

  .menu-button[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .menu-button[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

  .mobile-menu {
    position: absolute;
    top: 64px;
    right: 0;
    left: 0;
    display: grid;
    padding: 18px var(--pad) 24px;
    transform: translateY(-130%);
    border-top: 1px solid var(--line);
    background: rgba(7, 8, 9, 0.97);
    opacity: 0;
    transition: transform 220ms ease, opacity 180ms ease;
  }

  .mobile-menu.is-open { transform: translateY(0); opacity: 1; }

  .mobile-menu a {
    padding: 15px 0;
    border-bottom: 1px solid var(--line);
    color: #d9dad7;
    font-size: 13px;
  }

  .hero { min-height: 820px; }
  .hero-image { object-position: 64% center; }
  .hero-overlay {
    background:
      linear-gradient(0deg, rgba(3, 5, 7, 0.94) 0%, rgba(3, 5, 7, 0.66) 58%, rgba(3, 5, 7, 0.2) 100%),
      linear-gradient(90deg, rgba(3, 5, 7, 0.64), transparent);
  }

  .hero-copy { width: 100%; padding-top: 118px; padding-bottom: 210px; }
  .hero h1 { font-size: clamp(54px, 16.5vw, 76px); line-height: 0.87; }
  .hero-lead { max-width: 92%; margin-top: 28px; font-size: 15px; }
  .hero-actions { align-items: stretch; flex-direction: column; margin-top: 28px; }
  .hero-actions .button { width: 100%; }

  .hero-timer {
    right: var(--pad);
    bottom: 55px;
    left: var(--pad);
    width: auto;
  }

  .hero-timer strong { font-size: 80px; }
  .hero-note { bottom: 18px; font-size: 8px; }
  .signal > p { padding-left: var(--pad); }

  .section { padding-top: 80px; padding-bottom: 80px; }

  .intro,
  .request,
  .sources {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .intro h2,
  .section-head h2,
  .request h2 { font-size: clamp(42px, 13vw, 64px); }
  .intro-copy { padding-top: 10px; }

  .section-head { grid-template-columns: 1fr; align-items: start; gap: 24px; margin-bottom: 36px; }
  .section-head > p { justify-self: start; }
  .filters { flex-wrap: nowrap; overflow-x: auto; margin-right: calc(var(--pad) * -1); padding-right: var(--pad); scrollbar-width: none; }
  .filters::-webkit-scrollbar { display: none; }
  .filters button { flex: 0 0 auto; }

  .car-grid { grid-template-columns: 1fr; }
  .car-card,
  .car-card:nth-child(3n),
  .card-image { min-height: 520px; }
  .card-body h3 { font-size: clamp(46px, 14vw, 68px); }
  .card-top i { font-size: 48px; }
  .card-porsche img { object-position: 52% center; }

  .engineering-visual { min-height: 450px; }
  .engineering-visual img { object-position: 64% center; }
  .engineering-copy { padding: 65px var(--pad) 75px; }

  .china-grid { grid-template-columns: 1fr; }
  .china-grid article { min-height: 340px; padding: 26px; }
  .china-grid strong { font-size: 120px; }

  .delivery-steps { grid-template-columns: 1fr; }
  .delivery-steps li { min-height: 210px; }
  .delivery-steps h3 { margin-top: 45px; }
  .delivery-note { grid-template-columns: 1fr; gap: 12px; }

  .request-heading p:last-child { margin-top: 26px; }
  .request-form { grid-template-columns: 1fr; gap: 28px; }
  .request-form label,
  .request-form .form-wide { grid-column: 1; }
  .form-bottom { align-items: stretch; flex-direction: column; }
  .form-bottom .button { width: 100%; }

  .sources details { margin-top: 10px; }
  .sources ul { columns: 1; }

  .site-footer { grid-template-columns: 1fr; }
  .site-footer > div { justify-content: flex-start; }
  .site-footer small { grid-column: 1; margin-top: 15px; }
}

@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; }
}