:root {
  --bg: #0d1321;
  --bg-soft: #101a2d;
  --panel: rgba(12, 20, 36, 0.82);
  --panel-strong: rgba(8, 15, 29, 0.92);
  --line: rgba(148, 163, 184, 0.22);
  --text: #e5eefb;
  --muted: #94a9c7;
  --accent: #5eead4;
  --accent-strong: #22c7b5;
  --accent-soft: rgba(94, 234, 212, 0.14);
  --shadow: 0 24px 80px rgba(1, 6, 16, 0.38);
  --radius: 24px;
  --radius-sm: 16px;
  --content-width: 1180px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 199, 181, 0.18), transparent 22rem),
    radial-gradient(circle at top right, rgba(73, 110, 255, 0.16), transparent 24rem),
    linear-gradient(180deg, #08101d 0%, #0d1321 45%, #111b2f 100%);
  line-height: 1.6;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 4.5rem 4.5rem;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.48), transparent 92%);
}

a {
  color: inherit;
}

code {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95em;
  color: var(--accent);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  padding: 0.75rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #04111c;
  font-weight: 700;
}

.skip-link:focus {
  top: 1rem;
}

.site-shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin: 0 auto;
  padding: 1.25rem 0 3rem;
}

.site-header,
.site-footer,
.panel,
.feature-card,
.problem-card,
.capability-card,
.flow-card,
.signal-card {
  backdrop-filter: blur(18px);
}

.site-header {
  position: sticky;
  top: 1rem;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 2rem;
  margin-bottom: 2rem;
  padding: 1rem 1.25rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 14, 26, 0.72);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-block;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-decoration: none;
}

.brand-tag {
  margin: 0.2rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem 1.1rem;
}

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

.site-nav a:hover,
.site-nav a:focus-visible,
.brand:hover,
.brand:focus-visible {
  color: var(--text);
}

.nav-cta {
  padding: 0.65rem 1rem;
  border: 1px solid rgba(94, 234, 212, 0.28);
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text);
}

main {
  display: grid;
  gap: 1.75rem;
}

.panel,
.section {
  position: relative;
  overflow: hidden;
}

.panel {
  padding: clamp(1.6rem, 3vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(12, 20, 36, 0.88), rgba(8, 14, 26, 0.92));
  box-shadow: var(--shadow);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.9fr);
  gap: 1.5rem;
  align-items: stretch;
  min-height: 31rem;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-kicker,
.signal-label,
.flow-step,
.problem-number {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.75rem;
  font-weight: 700;
}

.eyebrow,
.section-kicker,
.signal-label,
.flow-step {
  color: var(--accent);
}

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

h1,
h2 {
  line-height: 1.05;
  letter-spacing: -0.03em;
}

h1 {
  max-width: 10ch;
  margin-bottom: 1rem;
  font-size: clamp(3rem, 7vw, 5.5rem);
}

h2 {
  max-width: 14ch;
  margin-bottom: 0.85rem;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.2rem;
}

.hero-text,
.section-heading p,
.contact-note,
.hero-note,
.feature-card p,
.problem-card p,
.capability-card p,
.flow-card p,
.security-list li {
  color: var(--muted);
}

.hero-text {
  max-width: 40rem;
  font-size: 1.08rem;
}

.hero-actions,
.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  align-items: center;
  margin: 1.35rem 0 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #9ef7eb 100%);
  color: #04111c;
}

.button-secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
}

.hero-visual {
  display: grid;
  gap: 1rem;
  align-content: center;
}

.signal-card,
.feature-card,
.problem-card,
.capability-card,
.flow-card {
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
}

.signal-value {
  margin: 0.25rem 0 0;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
}

.section {
  padding: 1rem 0;
}

.section-heading {
  max-width: 44rem;
  margin-bottom: 1.5rem;
}

.feature-grid,
.problem-grid,
.capability-grid,
.architecture-flow {
  display: grid;
  gap: 1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.capability-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.problem-number {
  display: inline-block;
  margin-bottom: 0.7rem;
  color: #9ef7eb;
}

.section-alt {
  padding: 1.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(8, 14, 26, 0.82), rgba(12, 20, 36, 0.88));
}

.security-section {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.9fr);
  gap: 1.5rem;
}

.security-list {
  margin: 0;
  padding-left: 1.2rem;
}

.security-list li + li {
  margin-top: 0.9rem;
}

.architecture-flow {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.flow-card {
  position: relative;
}

.flow-card::after {
  content: "";
  position: absolute;
  top: 1.9rem;
  right: -0.8rem;
  width: 1.6rem;
  height: 1px;
  background: rgba(94, 234, 212, 0.45);
}

.flow-card:last-child::after {
  display: none;
}

.contact-section {
  text-align: center;
}

.contact-section .section-heading {
  margin-right: auto;
  margin-left: auto;
}

.contact-actions {
  justify-content: center;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  margin-top: 2rem;
  padding: 1rem 0 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid #9ef7eb;
  outline-offset: 3px;
}

@media (max-width: 960px) {
  .site-header,
  .hero,
  .security-section,
  .feature-grid,
  .problem-grid,
  .capability-grid,
  .architecture-flow {
    grid-template-columns: 1fr;
  }

  .site-header {
    position: static;
    border-radius: var(--radius-sm);
  }

  .site-nav {
    justify-content: flex-start;
  }

  h1,
  h2 {
    max-width: none;
  }

  .flow-card::after {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(calc(100% - 1rem), var(--content-width));
    padding-top: 0.5rem;
  }

  .site-header,
  .panel,
  .section-alt {
    padding: 1rem;
  }

  .brand-tag {
    display: none;
  }

  .button,
  .nav-cta {
    width: 100%;
  }

  .site-nav {
    width: 100%;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}