:root {
  --ink: #e8eef2;
  --ink-muted: #9aadb8;
  --bg: #0b1216;
  --bg-elev: #121c22;
  --line: rgba(232, 238, 242, 0.12);
  --accent: #2fd0c6;
  --accent-deep: #149a92;
  --warn: #e2b15c;
  --danger: #e07a5f;
  --font-display: "Syne", sans-serif;
  --font-body: "DM Sans", sans-serif;
  --max: 1120px;
  --nav-h: 4.25rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: var(--font-body);
  font-optical-sizing: auto;
  background: var(--bg);
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(47, 208, 198, 0.18), transparent 55%),
    radial-gradient(700px 480px at 88% 8%, rgba(226, 177, 92, 0.1), transparent 50%),
    radial-gradient(1000px 700px at 50% 100%, rgba(20, 154, 146, 0.12), transparent 60%),
    linear-gradient(180deg, #0b1216 0%, #0e171c 45%, #0b1216 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 85%);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-height: var(--nav-h);
  padding: 0.75rem clamp(1rem, 3vw, 2rem);
  backdrop-filter: blur(14px);
  background: rgba(11, 18, 22, 0.72);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-nav nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 1.25rem;
  margin-left: auto;
  font-size: 0.92rem;
}

.site-nav nav a {
  text-decoration: none;
  color: var(--ink-muted);
}

.site-nav nav a:hover {
  color: var(--ink);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(47, 208, 198, 0.45);
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: end;
  min-height: calc(100svh - var(--nav-h));
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2rem, 6vw, 4.5rem) clamp(1rem, 3vw, 2rem) clamp(2.5rem, 6vw, 4rem);
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  letter-spacing: 0.04em;
  line-height: 0.95;
  color: var(--ink);
}

.hero h1,
.final-cta h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 5.2vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.support {
  margin: 1rem 0 0;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.01em;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.75rem;
  padding: 0.65rem 1.15rem;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, color 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  color: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #04201e;
}

.btn-primary:hover {
  background: #48ddd3;
  color: #04201e;
}

.btn-secondary {
  border-color: var(--line);
  background: rgba(232, 238, 242, 0.04);
}

.btn-ghost {
  border-color: rgba(47, 208, 198, 0.35);
  color: var(--accent);
}

.hero-visual {
  position: relative;
  min-height: clamp(280px, 48vh, 520px);
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(145deg, rgba(18, 28, 34, 0.2), rgba(11, 18, 22, 0.55)),
    radial-gradient(circle at 30% 30%, rgba(47, 208, 198, 0.22), transparent 45%),
    radial-gradient(circle at 78% 68%, rgba(226, 177, 92, 0.16), transparent 40%);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(232, 238, 242, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 238, 242, 0.07) 1px, transparent 1px);
  background-size: 36px 36px;
  transform: perspective(600px) rotateX(58deg) scale(1.35);
  transform-origin: center 20%;
  animation: grid-drift 18s linear infinite;
  opacity: 0.55;
}

.hero-orbit {
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  left: 21%;
  top: 18%;
  border: 1px solid rgba(47, 208, 198, 0.35);
  border-radius: 50%;
  box-shadow: inset 0 0 60px rgba(47, 208, 198, 0.08);
  animation: orbit-pulse 5.5s ease-in-out infinite;
}

.hero-orbit::before {
  content: "";
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  top: 8%;
  left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 18px rgba(47, 208, 198, 0.7);
}

.hero-principle {
  position: absolute;
  left: 1.25rem;
  right: 1.25rem;
  bottom: 1.25rem;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.65rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--ink);
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.55);
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) clamp(1rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.section h2 {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 58ch;
  margin: 1rem 0 0;
  color: var(--ink-muted);
  font-size: 1.05rem;
}

.principle h2 {
  max-width: 22ch;
}

.theme-list,
.cockpit-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
}

.theme-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1.5rem;
}

.theme-list li {
  display: grid;
  gap: 0.35rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.theme-list strong {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.theme-list span {
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.cockpit-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.cockpit-list li {
  padding: 0.55rem 0.85rem;
  border-left: 2px solid var(--accent);
  background: rgba(47, 208, 198, 0.06);
  color: var(--ink);
  font-weight: 500;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 2rem 0 0;
}

.security-grid > div {
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
}

.security-grid dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.security-grid dd {
  margin: 0.45rem 0 0;
  color: var(--ink-muted);
}

.security-wide {
  grid-column: 1 / -1;
}

.hero-lede {
  margin-top: 0.85rem;
}

.status-note {
  margin: 2rem 0 0;
  padding: 1rem 1.15rem;
  border-left: 2px solid var(--accent);
  background: rgba(47, 208, 198, 0.06);
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.status-note p {
  margin: 0;
}

.status-note strong {
  color: var(--ink);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1.5rem;
  margin: 2rem 0 0;
}

.feature-grid article {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.feature-grid h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.feature-grid p {
  margin: 0.4rem 0 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.shot {
  margin: 1.5rem 0 0;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: #060a0d;
}

.shot figcaption {
  margin: 0.65rem 0 0;
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.shot-hero-media {
  margin-top: 2rem;
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 1.75rem;
}

.shot-grid .shot {
  margin: 0;
}

.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem 0.85rem;
  margin: 2rem 0 0;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
}

.arch-flow div {
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--line);
  background: rgba(232, 238, 242, 0.03);
}

.arch-flow span {
  color: var(--accent);
}

.status-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.status-cards article {
  padding: 1.25rem 1.15rem;
  border: 1px solid var(--line);
  background: rgba(18, 28, 34, 0.55);
}

.status-cards h3 {
  margin: 0.35rem 0 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
}

.status-cards p {
  margin: 0.75rem 0 0;
  color: var(--ink-muted);
  font-size: 0.98rem;
}

.status-cards a {
  display: inline-block;
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.status-cards a:hover {
  text-decoration: underline;
}

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

.final-cta .hero-lede a {
  color: var(--accent);
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem clamp(1rem, 3vw, 2rem) 3rem;
  border-top: 1px solid var(--line);
  color: var(--ink-muted);
  font-size: 0.92rem;
}

.site-footer .muted {
  margin-top: 0.35rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@keyframes grid-drift {
  from {
    background-position: 0 0, 0 0;
  }
  to {
    background-position: 0 36px, 36px 0;
  }
}

@keyframes orbit-pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.85;
  }
  50% {
    transform: scale(1.04);
    opacity: 1;
  }
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .theme-list,
  .security-grid,
  .feature-grid,
  .shot-grid,
  .status-cards {
    grid-template-columns: 1fr;
  }

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

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

  .hero-grid,
  .hero-orbit,
  .btn,
  .reveal {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}