:root {
  --ink: #101317;
  --paper: #f5f2ec;
  --muted: #697078;
  --line: rgba(16, 19, 23, 0.14);
  --safety: #f3a718;
  --signal: #b9e23d;
  --blue: #1760a8;
  --red: #d9392e;
  --night: #07090d;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

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

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

.page-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 20;
  height: 3px;
  width: calc(var(--scroll, 0) * 1%);
  background: linear-gradient(90deg, var(--safety), var(--signal), var(--blue));
}

.site-header {
  position: fixed;
  top: 20px;
  left: 50%;
  z-index: 15;
  width: min(calc(100% - 32px), var(--max));
  min-height: 62px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 14px;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(7, 9, 13, 0.55);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  align-items: center;
  min-width: 130px;
}

.brand img {
  width: 152px;
  height: auto;
  background: white;
  padding: 8px 10px;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 38px);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

nav a {
  opacity: 0.86;
}

nav a:hover {
  opacity: 1;
}

.hero {
  position: relative;
  min-height: 92svh;
  overflow: hidden;
  display: grid;
  align-items: end;
  padding: 148px max(20px, calc((100vw - var(--max)) / 2)) 58px;
  color: white;
  background: var(--night);
}

.hero-media,
.hero-media span,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media span {
  background-image: var(--image);
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.08);
  animation: heroFade 18s infinite;
}

.hero-media span:nth-child(2) {
  animation-delay: 6s;
}

.hero-media span:nth-child(3) {
  animation-delay: 12s;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(7, 9, 13, 0.88), rgba(7, 9, 13, 0.38) 48%, rgba(7, 9, 13, 0.74)),
    linear-gradient(0deg, rgba(7, 9, 13, 0.92), transparent 42%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(780px, 100%);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--safety);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 840px;
  margin-bottom: 22px;
  font-size: clamp(3.8rem, 9vw, 9.6rem);
  line-height: 0.86;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  font-weight: 900;
  text-transform: uppercase;
  font-size: 0.8rem;
}

.button.primary {
  border-color: var(--safety);
  background: var(--safety);
  color: #15100a;
}

.button.secondary {
  color: white;
  background: rgba(255, 255, 255, 0.08);
}

.hero-panel {
  position: absolute;
  right: max(20px, calc((100vw - var(--max)) / 2));
  bottom: 58px;
  z-index: 2;
  width: min(310px, calc(100% - 40px));
  padding: 20px;
  border-left: 3px solid var(--safety);
  background: rgba(7, 9, 13, 0.68);
  backdrop-filter: blur(16px);
}

.hero-panel span {
  display: block;
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
}

.hero-panel strong {
  display: block;
  font-size: 1.35rem;
}

.hero-panel p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.72);
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.signal-band div {
  min-height: 148px;
  padding: 28px;
  border-right: 1px solid var(--line);
}

.signal-band strong {
  display: block;
  font-size: clamp(2.2rem, 4vw, 4.6rem);
  line-height: 1;
}

.signal-band span {
  color: var(--muted);
  font-weight: 750;
}

.project-story,
.capabilities,
.mvp {
  padding: clamp(72px, 9vw, 128px) max(20px, calc((100vw - var(--max)) / 2));
}

.section-intro {
  width: min(760px, 100%);
  margin-bottom: clamp(42px, 7vw, 84px);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 5vw, 5.3rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.section-intro p:not(.eyebrow),
.mvp-copy p {
  color: var(--muted);
  font-size: 1.05rem;
}

.story-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(26px, 5vw, 72px);
  align-items: center;
  margin-bottom: clamp(58px, 9vw, 126px);
}

.story-panel.reverse {
  grid-template-columns: minmax(280px, 0.65fr) minmax(0, 1.35fr);
}

.story-panel.reverse figure {
  order: 2;
}

.parallax-card {
  overflow: hidden;
  margin: 0;
  background: var(--ink);
  aspect-ratio: 16 / 10;
}

.parallax-card img {
  width: 100%;
  height: 118%;
  object-fit: cover;
  transform: translateY(var(--parallax, 0));
}

.story-copy {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.chapter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 24px;
  background: var(--ink);
  color: white;
  font-weight: 900;
}

.story-copy h3,
.capability h3 {
  margin-bottom: 10px;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.03;
}

.story-copy p,
.capability p,
.mvp-list span {
  color: var(--muted);
}

.capabilities {
  color: white;
  background: var(--night);
}

.capabilities .section-intro p:not(.eyebrow),
.capability p {
  color: rgba(255, 255, 255, 0.67);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.capability {
  min-height: 310px;
  padding: 28px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  transition: background 180ms ease, transform 180ms ease;
}

.capability:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.08);
}

.capability span {
  display: block;
  margin-bottom: 92px;
  color: var(--safety);
  font-weight: 900;
}

.motion-strip {
  overflow: hidden;
  padding: 18px 0;
  background: #ffffff;
}

.strip-track {
  display: flex;
  width: max-content;
  gap: 18px;
  animation: slideStrip 42s linear infinite;
}

.strip-track img {
  width: min(34vw, 480px);
  min-width: 280px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.mvp {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  gap: clamp(30px, 6vw, 88px);
  align-items: start;
  background: #f8f8f6;
}

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

.mvp-list div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.mvp-list strong {
  font-size: 1.05rem;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 30px max(20px, calc((100vw - var(--max)) / 2));
  color: white;
  background: var(--ink);
}

.site-footer p {
  margin: 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms ease, transform 700ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes heroFade {
  0%,
  100% {
    opacity: 0;
    transform: scale(1.08);
  }
  5%,
  31% {
    opacity: 1;
  }
  36% {
    opacity: 0;
    transform: scale(1);
  }
}

@keyframes slideStrip {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@media (max-width: 900px) {
  .site-header {
    top: 10px;
  }

  nav {
    gap: 12px;
    font-size: 0.72rem;
  }

  .brand img {
    width: 128px;
  }

  .hero {
    min-height: 94svh;
    padding-top: 126px;
  }

  .hero-panel {
    position: relative;
    right: auto;
    bottom: auto;
    margin-top: 34px;
  }

  .signal-band,
  .story-panel,
  .story-panel.reverse,
  .mvp {
    grid-template-columns: 1fr;
  }

  .story-panel.reverse figure {
    order: 0;
  }

  .capability-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 160px;
  }

  h1 {
    font-size: clamp(3.25rem, 17vw, 5.8rem);
  }

  .signal-band,
  .capability-grid {
    grid-template-columns: 1fr;
  }

  .signal-band div,
  .capability {
    min-height: auto;
  }

  .capability span {
    margin-bottom: 44px;
  }

  .mvp-list div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}