:root {
  --void: #050505;
  --panel: #101010;
  --line: rgba(240, 185, 11, 0.22);
  --gold: #f0b90b;
  --gold-soft: #ffd84d;
  --ink: #f5f5f5;
  --mute: #9a9a9a;
  --sans: "Sora", system-ui, sans-serif;
  --cn: "Noto Sans SC", "Sora", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 50% -10%, rgba(240, 185, 11, 0.12), transparent 60%),
    var(--void);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
}

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

a {
  color: inherit;
}

cite {
  font-style: italic;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(5, 5, 5, 0.88);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
}

.nav__brand img {
  height: 36px;
  width: auto;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  font-size: 0.92rem;
  font-weight: 500;
}

.nav__links a {
  text-decoration: none;
  color: var(--mute);
  transition: color 0.2s ease;
}

.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--gold);
  outline: none;
}

.nav__x {
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--gold);
  color: var(--gold) !important;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.hero {
  min-height: calc(100svh - 4rem);
  display: grid;
  justify-items: center;
  align-content: center;
  text-align: center;
  gap: 1rem;
  padding: clamp(3rem, 10vw, 6rem) clamp(1rem, 4vw, 2.5rem) 4rem;
}

.hero__logo {
  width: min(520px, 82vw);
  height: auto;
  animation: logo-in 0.9s ease both;
  filter: drop-shadow(0 0 40px rgba(240, 185, 11, 0.25));
}

.hero__readout {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin: 0.25rem 0 0;
  font-family: var(--mono);
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--gold);
  animation: rise 0.8s 0.15s ease both;
}

.hero__cn {
  font-family: var(--cn);
  font-weight: 700;
  letter-spacing: 0.2em;
}

.hero__eq {
  color: var(--mute);
}

.hero h1 {
  margin: 0.4rem 0 0;
  max-width: 14ch;
  font-size: clamp(2.6rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  animation: rise 0.8s 0.22s ease both;
}

.hero__sub {
  margin: 0;
  max-width: 34rem;
  color: var(--mute);
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  animation: rise 0.8s 0.3s ease both;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 0.75rem;
  animation: rise 0.8s 0.38s ease both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.7rem 1.25rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.btn--gold {
  background: var(--gold);
  color: #111;
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--gold-soft);
}

.btn--ghost {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 0.88rem;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

@keyframes logo-in {
  from {
    opacity: 0;
    transform: scale(0.92) translateY(12px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.kicker {
  margin: 0 0 0.75rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.story {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5.5rem) clamp(1.15rem, 4vw, 2.5rem);
}

.story h2 {
  margin: 0 0 1.75rem;
  font-size: clamp(1.9rem, 4.5vw, 2.8rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.story__prose p {
  margin: 0 0 1.15rem;
  color: #cfcfcf;
  font-size: 1.08rem;
}

.story__prose strong {
  color: var(--ink);
  font-weight: 600;
}

.pull {
  margin: 2.5rem 0 0;
  padding: 1.5rem 1.4rem;
  border-left: 3px solid var(--gold);
  background: linear-gradient(90deg, rgba(240, 185, 11, 0.08), transparent);
}

.pull p {
  margin: 0;
  font-size: 1.25rem;
  line-height: 1.45;
  font-weight: 500;
}

.pull span {
  display: block;
  margin-top: 0.85rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-transform: uppercase;
}

.contrast {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  max-width: 1000px;
  margin: 0 auto 2rem;
  padding: 0 clamp(1.15rem, 4vw, 2.5rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.contrast article {
  background: var(--panel);
  padding: 1.6rem 1.4rem;
}

.contrast h3 {
  margin: 0 0 0.55rem;
  font-size: 1.15rem;
}

.contrast p {
  margin: 0;
  color: var(--mute);
  font-size: 0.98rem;
}

.contrast__cz {
  background: #14100a;
}

.contrast__cz h3 {
  color: var(--gold);
}

.evidence {
  padding: clamp(3.5rem, 9vw, 6rem) clamp(1.15rem, 4vw, 2.5rem);
  background: #080808;
  border-top: 1px solid var(--line);
}

.evidence h2 {
  margin: 0 0 0.7rem;
  max-width: 700px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.02em;
}

.evidence__lede {
  margin: 0 0 2rem;
  max-width: 560px;
  color: var(--mute);
}

.evidence__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  max-width: 1100px;
}

.evidence figure {
  margin: 0;
}

.evidence button {
  width: 100%;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: #111;
  cursor: zoom-in;
  overflow: hidden;
  transition: border-color 0.2s ease, transform 0.25s ease;
}

.evidence button:hover,
.evidence button:focus-visible {
  border-color: var(--gold);
  transform: translateY(-3px);
  outline: none;
}

.evidence img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  object-position: top center;
}

.evidence figcaption {
  margin-top: 0.7rem;
  font-size: 0.9rem;
  color: var(--mute);
}

.xband {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 0.85rem;
  padding: clamp(4rem, 10vw, 6.5rem) 1.25rem;
  background:
    radial-gradient(700px 280px at 50% 0%, rgba(240, 185, 11, 0.16), transparent 70%),
    var(--void);
  border-top: 1px solid var(--line);
}

.xband img {
  height: 56px;
  width: auto;
}

.xband h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.xband p {
  margin: 0 0 0.5rem;
  color: var(--mute);
  max-width: 28rem;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.75rem clamp(1.15rem, 4vw, 2.5rem) 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--mute);
  font-size: 0.9rem;
}

.footer img {
  height: 28px;
  width: auto;
  margin-bottom: 0.4rem;
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--gold);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.85rem;
}

.footer a:hover,
.footer a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(0, 0, 0, 0.92);
}

.lightbox[hidden] {
  display: none;
}

.lightbox__img {
  max-width: min(1100px, 100%);
  max-height: 88vh;
  object-fit: contain;
  border: 1px solid var(--gold);
}

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--gold);
  background: #000;
  color: var(--gold);
  font-size: 1.7rem;
  cursor: pointer;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@media (max-width: 720px) {
  .nav__links a:not(.nav__x) {
    display: none;
  }

  .contrast,
  .evidence__grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    max-width: 12ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__logo,
  .hero__readout,
  .hero h1,
  .hero__sub,
  .hero__actions,
  .reveal {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}