:root {
  --luv-bg: #070a0d;
  --luv-panel: rgba(18, 25, 31, 0.82);
  --luv-panel-strong: #121920;
  --luv-line: rgba(255, 255, 255, 0.12);
  --luv-text: #f4f7f6;
  --luv-muted: #a4b0ad;
  --luv-accent: #8df7bb;
  --luv-accent-2: #8ed7ff;
  --luv-warm: #ffd38d;
  --luv-max: 1180px;
}

* {
  box-sizing: border-box;
}

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

body.luv-page {
  margin: 0;
  color: var(--luv-text);
  background:
    radial-gradient(circle at 82% 12%, rgba(88, 195, 255, 0.12), transparent 30rem),
    radial-gradient(circle at 12% 28%, rgba(91, 255, 156, 0.1), transparent 32rem),
    var(--luv-bg);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
}

.luv-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  gap: 0.45rem;
  width: min(calc(100% - 1.25rem), var(--luv-max));
  margin: 0.6rem auto 0;
  padding: 0.45rem;
  overflow-x: auto;
  border: 1px solid var(--luv-line);
  border-radius: 999px;
  background: rgba(7, 10, 13, 0.78);
  backdrop-filter: blur(18px);
}

.luv-nav a {
  flex: 0 0 auto;
  padding: 0.65rem 0.9rem;
  border-radius: 999px;
  color: var(--luv-muted);
  text-decoration: none;
  font-size: 0.82rem;
}

.luv-nav a:hover,
.luv-nav a:focus-visible {
  color: var(--luv-text);
  background: rgba(255, 255, 255, 0.08);
}

.hero,
main > section {
  width: min(calc(100% - 2rem), var(--luv-max));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 1.08fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: min(780px, calc(100svh - 3rem));
  padding: clamp(4rem, 9vw, 8rem) 0 5rem;
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: var(--luv-accent);
  font-size: 0.78rem;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 13ch;
  margin-bottom: 1.2rem;
  font-size: clamp(3rem, 7.5vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.065em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2.1rem, 5vw, 4.3rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

h3 {
  margin-bottom: 0.55rem;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.lede,
.section-intro > p:last-child,
.inspiration-copy,
.operator-copy > p,
.research-note > p {
  color: var(--luv-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.8rem;
}

.action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.8rem 1rem;
  border: 1px solid var(--luv-line);
  border-radius: 14px;
  text-decoration: none;
  font-weight: 700;
}

.action.primary {
  color: #05100a;
  border-color: transparent;
  background: var(--luv-accent);
}

.hero-principles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.3rem;
}

.hero-principles span,
.mode-tags span {
  padding: 0.44rem 0.62rem;
  border: 1px solid var(--luv-line);
  border-radius: 999px;
  color: var(--luv-muted);
  font-size: 0.76rem;
}

.vehicle-stage {
  position: relative;
  min-height: 430px;
  padding: 2rem;
  overflow: hidden;
  border: 1px solid var(--luv-line);
  border-radius: 32px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.04), transparent 45%),
    rgba(9, 14, 18, 0.78);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
}

.vehicle-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, black, transparent 92%);
}

.vehicle {
  position: relative;
  width: min(100%, 620px);
  height: 320px;
  margin: 1.8rem auto 0;
}

.wheel {
  position: absolute;
  bottom: 22px;
  width: 118px;
  aspect-ratio: 1;
  border: 18px solid #171d20;
  border-radius: 50%;
  background: #060708;
  box-shadow: inset 0 0 0 2px #344046, 0 18px 35px rgba(0, 0, 0, 0.35);
}

.wheel span {
  position: absolute;
  inset: 28%;
  border: 2px solid #4f6067;
  border-radius: 50%;
}

.wheel-front {
  left: 26px;
}

.wheel-rear {
  right: 22px;
}

.spine {
  position: absolute;
  left: 108px;
  right: 100px;
  bottom: 78px;
  height: 72px;
  border: 1px solid rgba(141, 247, 187, 0.38);
  border-radius: 28px 52px 24px 24px;
  background: linear-gradient(90deg, #29343a, #1b252a);
  transform: skewX(-6deg);
}

.spine-label {
  position: absolute;
  left: 34%;
  top: 50%;
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translate(-50%, -50%) skewX(6deg);
}

.module-bay {
  position: absolute;
  left: 196px;
  bottom: 92px;
  display: grid;
  align-content: center;
  width: 185px;
  height: 122px;
  padding: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 28px;
  background: rgba(8, 12, 15, 0.94);
  box-shadow: inset 0 0 30px rgba(142, 215, 255, 0.05);
  transition: 180ms ease;
}

.module-bay strong {
  display: block;
  margin-bottom: 0.35rem;
}

.module-bay small {
  color: var(--luv-muted);
}

.vehicle[data-mode="cargo"] .module-bay {
  height: 152px;
  border-color: rgba(255, 211, 141, 0.5);
  box-shadow: inset 0 0 45px rgba(255, 211, 141, 0.08);
}

.vehicle[data-mode="family"] .module-bay {
  height: 142px;
  border-color: rgba(141, 247, 187, 0.5);
  border-radius: 38px 38px 24px 24px;
}

.vehicle[data-mode="field"] .module-bay {
  border-color: rgba(142, 215, 255, 0.55);
  box-shadow: inset 0 0 45px rgba(142, 215, 255, 0.1);
}

.cockpit {
  position: absolute;
  left: 106px;
  bottom: 143px;
  width: 72px;
  height: 92px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
  background: #131b20;
  transform: rotate(-10deg);
}

.phone {
  position: absolute;
  inset: 15px 17px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(141, 247, 187, 0.5);
  border-radius: 10px;
  color: var(--luv-accent);
  background: #050807;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.windscreen {
  position: absolute;
  left: 82px;
  bottom: 218px;
  width: 82px;
  height: 92px;
  border: 1px solid rgba(142, 215, 255, 0.25);
  border-radius: 80% 20% 20% 12%;
  background: linear-gradient(140deg, rgba(142, 215, 255, 0.14), rgba(142, 215, 255, 0.02));
  transform: rotate(-9deg);
}

.seat {
  position: absolute;
  right: 116px;
  bottom: 164px;
  width: 122px;
  height: 32px;
  border-radius: 70% 45% 30% 35%;
  background: #30393c;
  transform: rotate(-3deg);
}

.rear-rack {
  position: absolute;
  right: 30px;
  bottom: 171px;
  width: 110px;
  height: 7px;
  border-radius: 999px;
  background: #48555a;
}

.ground-line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
}

.stage-note {
  position: absolute;
  left: 1.3rem;
  right: 1.3rem;
  bottom: 1rem;
  margin: 0;
  color: #74817e;
  font-size: 0.75rem;
  text-align: center;
}

main > section {
  padding: clamp(4.2rem, 9vw, 8rem) 0;
  border-top: 1px solid var(--luv-line);
}

.section-intro {
  max-width: 760px;
  margin-bottom: 2.2rem;
}

.inspiration {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 7vw, 6rem);
}

.inspiration h2 {
  max-width: 10ch;
}

.inspiration-copy strong {
  color: var(--luv-text);
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.source-links a,
.text-link {
  color: var(--luv-accent);
  font-weight: 700;
  text-underline-offset: 4px;
}

.architecture-grid,
.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.8rem;
}

.architecture-grid article,
.principle-grid article {
  min-height: 220px;
  padding: 1.2rem;
  border: 1px solid var(--luv-line);
  border-radius: 22px;
  background: var(--luv-panel);
}

.architecture-grid p,
.principle-grid p {
  color: var(--luv-muted);
  line-height: 1.55;
}

.number {
  display: inline-block;
  margin-bottom: 2.8rem;
  color: var(--luv-accent);
  font-size: 0.75rem;
  font-weight: 800;
}

.stack {
  display: grid;
  gap: 0.45rem;
  max-width: 780px;
  margin: 3rem auto 0;
}

.stack div {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  align-items: center;
  padding: 0.95rem 1rem;
  border: 1px solid var(--luv-line);
  border-radius: 15px;
  background: linear-gradient(90deg, rgba(141, 247, 187, 0.06), rgba(255, 255, 255, 0.02));
}

.stack span {
  color: var(--luv-muted);
}

.mode-console {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 1rem;
  min-height: 330px;
}

.mode-buttons {
  display: grid;
  gap: 0.5rem;
  align-content: start;
}

.mode-button {
  min-height: 58px;
  padding: 0.8rem 1rem;
  border: 1px solid var(--luv-line);
  border-radius: 16px;
  color: var(--luv-muted);
  background: transparent;
  font: inherit;
  font-weight: 750;
  text-align: left;
  cursor: pointer;
}

.mode-button:hover,
.mode-button:focus-visible,
.mode-button.is-active {
  color: #07120b;
  border-color: transparent;
  background: var(--luv-accent);
}

.mode-readout {
  display: grid;
  align-content: end;
  min-height: 330px;
  padding: clamp(1.5rem, 5vw, 3.5rem);
  border: 1px solid var(--luv-line);
  border-radius: 28px;
  background:
    radial-gradient(circle at 80% 10%, rgba(142, 215, 255, 0.12), transparent 20rem),
    var(--luv-panel);
}

.mode-kicker {
  margin-bottom: auto;
  color: var(--luv-accent-2);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.mode-heading {
  margin-bottom: 0.6rem;
  font-size: clamp(2.2rem, 6vw, 4.8rem);
}

.mode-description {
  max-width: 680px;
  color: var(--luv-muted);
  font-size: 1.1rem;
  line-height: 1.6;
}

.mode-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.operator-panel {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: clamp(2rem, 7vw, 6rem);
  align-items: center;
}

.operator-screen {
  padding: 1rem;
  border: 1px solid rgba(141, 247, 187, 0.22);
  border-radius: 30px;
  background: #0d1316;
  box-shadow: 0 35px 80px rgba(0, 0, 0, 0.28);
}

.operator-top,
.operator-stats {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem;
}

.operator-top span,
.operator-stats span {
  color: var(--luv-muted);
  font-size: 0.8rem;
}

.operator-dialogue {
  display: grid;
  gap: 0.7rem;
  min-height: 240px;
  padding: 1.8rem 1rem;
  align-content: end;
}

.operator-dialogue p,
.operator-dialogue div {
  max-width: 86%;
  margin: 0;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  line-height: 1.45;
}

.operator-dialogue p {
  justify-self: end;
  background: #243037;
}

.operator-dialogue div {
  color: #092014;
  background: var(--luv-accent);
}

.operator-stats {
  border-top: 1px solid var(--luv-line);
}

.operator-stats strong {
  color: var(--luv-text);
}

.build-steps {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.build-steps li {
  display: grid;
  grid-template-columns: 58px 1fr;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--luv-line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.025);
}

.build-steps li > span {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(141, 247, 187, 0.3);
  border-radius: 50%;
  color: var(--luv-accent);
  font-weight: 800;
}

.build-steps p {
  margin: 0.3rem 0 0;
  color: var(--luv-muted);
  line-height: 1.55;
}

.research-note {
  max-width: 900px;
}

.disclaimer {
  font-size: 0.85rem !important;
}

.luv-footer {
  width: min(calc(100% - 2rem), var(--luv-max));
  margin: 0 auto;
  padding: 3rem 0 5rem;
  border-top: 1px solid var(--luv-line);
  color: var(--luv-muted);
  text-align: center;
}

@media (max-width: 900px) {
  .hero,
  .inspiration,
  .operator-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .vehicle-stage {
    min-height: 390px;
  }

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

@media (max-width: 650px) {
  .hero,
  main > section {
    width: min(calc(100% - 1.25rem), var(--luv-max));
  }

  .hero {
    padding-top: 3.2rem;
  }

  h1 {
    max-width: 11ch;
  }

  .vehicle-stage {
    min-height: 340px;
    padding-inline: 0.6rem;
  }

  .vehicle {
    width: 540px;
    max-width: none;
    height: 280px;
    margin-left: 50%;
    transform: translateX(-50%) scale(0.72);
    transform-origin: center top;
  }

  .stage-note {
    font-size: 0.68rem;
  }

  .architecture-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .architecture-grid article,
  .principle-grid article {
    min-height: 0;
  }

  .number {
    margin-bottom: 1.5rem;
  }

  .stack div {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }

  .mode-console {
    grid-template-columns: 1fr;
  }

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

  .mode-button {
    text-align: center;
  }

  .mode-readout {
    min-height: 310px;
  }

  .operator-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .operator-stats span {
    display: grid;
  }
}

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

  * {
    transition-duration: 0.001ms !important;
  }
}