:root {
  --bg: #060a14;
  --bg-deep: #02050d;
  --panel: rgba(10, 18, 34, 0.78);
  --panel-strong: rgba(10, 18, 34, 0.94);
  --text: #eff7ff;
  --text-soft: #d6e4f7;
  --text-dim: #8ca0bc;
  --cyan: #75f3ff;
  --cyan-deep: #16d0ff;
  --pink: #ff87dc;
  --line: rgba(117, 243, 255, 0.16);
  --line-strong: rgba(117, 243, 255, 0.34);
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.34);
  --cut: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  --max-width: 1180px;
  --fs-display: clamp(2.6rem, 5.4vw, 4.6rem);
  --fs-h2: clamp(1.7rem, 3vw, 2.6rem);
  --fs-h3: clamp(1.08rem, 1.3vw, 1.3rem);
  --fs-body: clamp(0.98rem, 1.08vw, 1.04rem);
  --fs-small: 0.78rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at 15% 18%, rgba(117, 243, 255, 0.16), transparent 24%),
    radial-gradient(circle at 85% 12%, rgba(255, 135, 220, 0.1), transparent 18%),
    linear-gradient(180deg, #070c18 0%, #040812 48%, #02050d 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 78px 78px;
  opacity: 0.18;
  mask-image: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.9) 18%, rgba(0, 0, 0, 0.7));
}

body::after {
  background: radial-gradient(circle at center, transparent 34%, rgba(0, 0, 0, 0.42) 100%);
}

::selection {
  background: rgba(117, 243, 255, 0.22);
  color: #fff;
}

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

.noise,
.grid,
.glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.noise {
  opacity: 0.04;
  background-image: radial-gradient(#ffffff 0.6px, transparent 0.6px);
  background-size: 9px 9px;
}

.grid {
  background: linear-gradient(180deg, transparent, rgba(117, 243, 255, 0.03));
}

.glow {
  filter: blur(88px);
  opacity: 0.32;
}

.glow-a {
  background: radial-gradient(circle, rgba(117, 243, 255, 0.26), transparent 58%);
  transform: translate(-20%, -22%);
}

.glow-b {
  background: radial-gradient(circle, rgba(255, 135, 220, 0.18), transparent 58%);
  transform: translate(55%, 8%);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 42px);
  background: linear-gradient(180deg, rgba(6, 10, 20, 0.84), rgba(6, 10, 20, 0.42));
  border-bottom: 1px solid rgba(117, 243, 255, 0.1);
  backdrop-filter: blur(20px);
}

.brand,
.brand-meta {
  display: inline-flex;
  align-items: center;
}

.brand {
  gap: 14px;
}

.brand-meta {
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.brand-mark,
.brand-meta strong,
.eyebrow,
.site-nav a,
.label,
.signal-header p,
.signal-grid span,
.signal-diagram span,
.system-card span,
.path-item span {
  font-family: "Oxanium", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  clip-path: var(--cut);
  border: 1px solid rgba(117, 243, 255, 0.4);
  background: linear-gradient(180deg, rgba(117, 243, 255, 0.16), rgba(117, 243, 255, 0.04));
  box-shadow: inset 0 0 18px rgba(117, 243, 255, 0.08);
  font-weight: 700;
}

.brand-meta strong {
  font-size: 0.9rem;
}

.brand-meta span {
  color: var(--text-dim);
  font-size: 0.84rem;
}

.site-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  padding: 10px 14px;
  clip-path: var(--cut);
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.02);
  font-size: 0.74rem;
  transition: color 180ms ease, border-color 180ms ease, background 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--cyan);
  border-color: rgba(117, 243, 255, 0.26);
  background: rgba(117, 243, 255, 0.05);
}

.section {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 96px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 34px;
  align-items: center;
  min-height: calc(100vh - 92px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 0.74rem;
}

.hero h1,
.section-heading h2,
.signal-header strong,
.cta-card h2 {
  margin: 0;
  font-family: "Oxanium", sans-serif;
}

.hero h1 {
  max-width: none;
  font-size: var(--fs-display);
  line-height: 1.02;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.hero-text,
.feature-card p,
.system-card p,
.focus-panel p,
.mini-card p,
.path-item p,
.cta-card p {
  color: var(--text-soft);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.hero-text {
  max-width: 34ch;
  margin: 20px 0 0;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-actions {
  margin: 30px 0 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 22px;
  clip-path: var(--cut);
  border: 1px solid transparent;
  font-family: "Oxanium", sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-primary {
  color: #04111a;
  background: linear-gradient(135deg, var(--cyan), #d7fbff);
  box-shadow: 0 16px 32px rgba(117, 243, 255, 0.18);
}

.button-secondary {
  border-color: rgba(117, 243, 255, 0.24);
  background: rgba(255, 255, 255, 0.03);
}

.signal-frame,
.feature-card,
.system-card,
.focus-panel,
.mini-card,
.path-item,
.cta-card {
  position: relative;
  clip-path: var(--cut);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(10, 18, 34, 0.82), rgba(5, 10, 20, 0.94));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.signal-frame::before,
.feature-card::before,
.system-card::before,
.focus-panel::before,
.mini-card::before,
.path-item::before,
.cta-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(117, 243, 255, 0.12), transparent 45%, rgba(255, 135, 220, 0.08));
  pointer-events: none;
}

.signal-frame {
  padding: 26px;
}

.signal-header {
  display: grid;
  gap: 10px;
  margin-bottom: 24px;
}

.signal-header p {
  margin: 0;
  color: var(--cyan);
  font-size: 0.72rem;
}

.signal-header strong {
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  line-height: 1.2;
}

.signal-grid {
  display: grid;
  gap: 14px;
}

.signal-grid article {
  padding: 16px 18px;
  clip-path: var(--cut);
  border: 1px solid rgba(117, 243, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
}

.signal-grid span {
  display: block;
  margin-bottom: 10px;
  color: var(--cyan);
  font-size: 0.68rem;
}

.signal-grid strong,
.feature-card h3,
.system-card h3,
.focus-panel h3,
.mini-card h3,
.path-item h3 {
  display: block;
  margin-bottom: 10px;
  font-family: "Oxanium", sans-serif;
  font-size: var(--fs-h3);
  line-height: 1.2;
  text-wrap: balance;
}

.signal-grid p {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
  line-height: 1.65;
}

.signal-diagram {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.signal-diagram span {
  display: block;
  padding: 12px 10px;
  clip-path: var(--cut);
  border: 1px solid rgba(117, 243, 255, 0.12);
  text-align: center;
  color: #c9edff;
  font-size: 0.72rem;
  background: rgba(255, 255, 255, 0.02);
}

.intro-strip {
  padding-top: 16px;
  padding-bottom: 0;
}

.intro-strip p {
  margin: 0;
  max-width: 900px;
  font-family: "Oxanium", sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading h2 {
  font-size: var(--fs-h2);
  line-height: 1.08;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.about-layout {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}

.feature-card {
  padding: 24px;
}

.feature-card-large {
  min-height: 100%;
}

.label {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.72rem;
}

.system-grid,
.focus-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.system-card,
.mini-card {
  padding: 22px;
}

.system-card span {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--cyan);
  font-size: 0.72rem;
}

.focus-layout {
  display: grid;
  grid-template-columns: minmax(300px, 0.95fr) minmax(0, 1.05fr);
  gap: 18px;
}

.focus-panel {
  padding: 28px;
}

.path-list {
  display: grid;
  gap: 16px;
}

.path-item {
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 22px 24px;
}

.path-item span {
  color: var(--cyan);
  font-size: 0.74rem;
}

.path-item p,
.cta-card p {
  margin: 0;
}

.cta-card {
  padding: 32px;
  text-align: center;
}

.cta-card h2 {
  max-width: 18ch;
  margin: 0 auto;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1.04;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.cta-card p {
  max-width: 740px;
  margin: 18px auto 0;
}

.cta-actions {
  justify-content: center;
  margin-top: 26px;
}

.text-gradient {
  background: linear-gradient(90deg, #ffffff 0%, #acf8ff 38%, #7cd2ff 72%, #ffc5ed 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.text-cyan {
  color: #9ef8ff;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 720ms ease, transform 720ms ease;
}

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

@media (max-width: 1080px) {
  .hero,
  .about-layout,
  .focus-layout {
    grid-template-columns: 1fr;
  }

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

  .hero {
    min-height: auto;
    padding-top: 28px;
  }

  .hero h1,
  .cta-card h2 {
    max-width: none;
  }
}

@media (max-width: 760px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .site-nav {
    width: 100%;
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    padding-bottom: 4px;
  }

  .site-nav::-webkit-scrollbar {
    display: none;
  }

  .section {
    width: min(calc(100% - 22px), var(--max-width));
    padding: 76px 0;
  }

  .hero-actions,
  .cta-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .system-grid,
  .focus-list,
  .signal-diagram {
    grid-template-columns: 1fr;
  }

  .path-item {
    grid-template-columns: 1fr;
  }

  .cta-card {
    text-align: left;
  }

  .cta-card h2 {
    margin-left: 0;
  }

  .cta-card p {
    margin-left: 0;
  }
}