:root {
  color-scheme: dark;
  --ink: #f4f8f7;
  --muted: #aab8b4;
  --soft: #d8e6e1;
  --charcoal: #090d0e;
  --graphite: #111819;
  --panel: #172021;
  --panel-strong: #202a2b;
  --line: rgba(216, 230, 225, 0.15);
  --cyan: #43d5ff;
  --green: #6df0a8;
  --amber: #f2c46f;
  --plum: #b08cff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--charcoal);
  color: var(--ink);
  line-height: 1.5;
}

body::selection {
  background: rgba(109, 240, 168, 0.28);
}

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

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 18px clamp(20px, 4vw, 56px);
  border-bottom: 1px solid transparent;
  transition: background 180ms ease, border-color 180ms ease, backdrop-filter 180ms ease;
}

.site-header[data-elevated="true"] {
  background: rgba(9, 13, 14, 0.84);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(109, 240, 168, 0.45);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(67, 213, 255, 0.18), rgba(109, 240, 168, 0.16));
  color: var(--green);
}

.site-nav {
  justify-self: center;
  display: flex;
  gap: 8px;
}

.site-nav a,
.nav-action {
  border-radius: 999px;
  color: var(--soft);
  font-size: 0.9rem;
  font-weight: 700;
}

.site-nav a {
  padding: 10px 14px;
}

.site-nav a:hover,
.nav-action:hover {
  background: rgba(255, 255, 255, 0.08);
}

.nav-action {
  padding: 10px 16px;
  border: 1px solid rgba(216, 230, 225, 0.2);
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  overflow: hidden;
  isolation: isolate;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 170px;
  background: linear-gradient(0deg, var(--charcoal), transparent);
  z-index: -1;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(9, 13, 14, 0.96) 0%, rgba(9, 13, 14, 0.75) 36%, rgba(9, 13, 14, 0.28) 72%),
    linear-gradient(0deg, rgba(9, 13, 14, 0.6), rgba(9, 13, 14, 0.08) 46%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  width: min(760px, calc(100% - 40px));
  align-self: center;
  margin: 72px 0 0 clamp(20px, 7vw, 96px);
  padding: 64px 0 110px;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.02;
  letter-spacing: 0;
}

h1 {
  max-width: 760px;
  font-size: clamp(3rem, 7vw, 6.8rem);
}

h2 {
  font-size: clamp(2rem, 4.4vw, 4.6rem);
}

h3 {
  font-size: clamp(1.35rem, 2vw, 1.8rem);
}

.hero-copy {
  max-width: 660px;
  margin: 24px 0 0;
  color: var(--soft);
  font-size: clamp(1.05rem, 1.5vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 13px 18px;
  font-weight: 800;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--green);
  color: #06110e;
}

.button.secondary {
  border: 1px solid rgba(216, 230, 225, 0.24);
  background: rgba(255, 255, 255, 0.06);
  color: var(--ink);
}

.band {
  background:
    linear-gradient(135deg, rgba(67, 213, 255, 0.08), transparent 38%),
    linear-gradient(315deg, rgba(242, 196, 111, 0.08), transparent 32%),
    var(--graphite);
}

.section-inner {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.intro {
  padding: 86px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(280px, 0.72fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: start;
}

.intro p:not(.eyebrow),
.platform-copy p,
.closing p {
  margin: 0;
  color: var(--soft);
  font-size: clamp(1.05rem, 1.4vw, 1.28rem);
}

.principles {
  padding: 108px 0;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 38px;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.principle-card {
  display: grid;
  align-content: start;
  min-height: 360px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.035));
  box-shadow: var(--shadow);
}

.principle-index {
  width: fit-content;
  margin-bottom: 72px;
  color: var(--amber);
  font-weight: 800;
}

.principle-card:nth-child(2) .principle-index {
  color: var(--cyan);
}

.principle-card:nth-child(3) .principle-index {
  color: var(--green);
}

.principle-card:nth-child(4) .principle-index {
  color: var(--plum);
}

.principle-card p {
  margin: 18px 0 0;
  color: var(--muted);
}

.platform {
  padding: 96px 0;
  border-block: 1px solid var(--line);
}

.platform-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 0.65fr);
  gap: clamp(32px, 7vw, 90px);
  align-items: center;
}

.platform-copy p {
  margin-top: 24px;
}

.signal-panel {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid rgba(109, 240, 168, 0.28);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(109, 240, 168, 0.1), rgba(67, 213, 255, 0.05)),
    rgba(9, 13, 14, 0.48);
  box-shadow: var(--shadow);
}

.signal-row {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 16px;
  align-items: center;
  min-height: 76px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.055);
}

.signal-row span {
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

.signal-row strong {
  color: var(--ink);
  font-size: clamp(1rem, 1.5vw, 1.22rem);
}

.closing {
  padding: 118px 0;
  text-align: center;
}

.closing-inner {
  max-width: 820px;
}

.closing p {
  margin: 24px auto 32px;
  max-width: 680px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .intro-grid,
  .platform-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 640px) {
  .site-header {
    padding: 14px 16px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .nav-action {
    display: none;
  }

  .hero {
    min-height: 94vh;
  }

  .hero-media::after {
    background:
      linear-gradient(0deg, rgba(9, 13, 14, 0.96) 8%, rgba(9, 13, 14, 0.72) 56%, rgba(9, 13, 14, 0.38)),
      linear-gradient(90deg, rgba(9, 13, 14, 0.96), rgba(9, 13, 14, 0.4));
  }

  .hero-content {
    width: calc(100% - 32px);
    margin: 70px auto 0;
    padding-bottom: 90px;
  }

  h1 {
    font-size: clamp(2.55rem, 13vw, 4.25rem);
  }

  .button {
    width: 100%;
  }

  .intro,
  .platform,
  .principles,
  .closing {
    padding: 72px 0;
  }

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

  .principle-card {
    min-height: 0;
  }

  .principle-index {
    margin-bottom: 44px;
  }

  .signal-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}