:root {
  color-scheme: dark;
  --background: #090b0f;
  --background-soft: #0d1118;
  --surface: rgba(16, 21, 30, 0.78);
  --surface-strong: rgba(20, 27, 38, 0.9);
  --border: rgba(165, 181, 205, 0.15);
  --border-strong: rgba(174, 193, 222, 0.24);
  --text: #f3f6fb;
  --text-muted: #a8b0bf;
  --text-soft: #737d8e;
  --accent: #7db2ff;
  --accent-soft: rgba(125, 178, 255, 0.14);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.36);
  --max-width: 1120px;
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 999px;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 18% 0%, rgba(57, 94, 150, 0.2), transparent 34rem),
    radial-gradient(circle at 85% 14%, rgba(77, 104, 143, 0.16), transparent 32rem),
    linear-gradient(180deg, #090b0f 0%, #0a0d12 48%, #08090c 100%);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(142, 164, 196, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(142, 164, 196, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background: linear-gradient(180deg, transparent 0%, rgba(9, 11, 15, 0.72) 72%, #08090c 100%);
}

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

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

p {
  color: var(--text-muted);
}

.container {
  width: min(100% - 40px, var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 20;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-strong);
  color: var(--text);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.skip-link:focus {
  opacity: 1;
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(165, 181, 205, 0.08);
  background: rgba(9, 11, 15, 0.74);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-size: 0.96rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(125, 178, 255, 0.18), rgba(255, 255, 255, 0.03));
  color: #dceaff;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.nav-link {
  display: none;
  color: var(--text-soft);
  font-size: 0.88rem;
  transition: color 160ms ease;
}

.nav-link:hover {
  color: var(--text);
}

.section {
  padding: 76px 0;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - 72px);
  padding: 72px 0 96px;
}

.hero-atmosphere {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-atmosphere::before {
  position: absolute;
  top: 8%;
  right: -22%;
  width: 660px;
  height: 660px;
  border: 1px solid rgba(125, 178, 255, 0.08);
  border-radius: 50%;
  content: "";
  background:
    radial-gradient(circle, rgba(125, 178, 255, 0.12), transparent 58%),
    repeating-radial-gradient(circle, rgba(168, 176, 191, 0.06) 0 1px, transparent 1px 42px);
}

.route-map {
  position: absolute;
  top: 6%;
  left: 50%;
  width: min(920px, 130vw);
  max-width: none;
  opacity: 0.42;
  transform: translateX(-38%);
}

.route-map path,
.route-map circle {
  fill: none;
  stroke: rgba(162, 193, 238, 0.34);
  stroke-width: 1.3;
}

.route-map path {
  stroke-dasharray: 8 14;
}

.route-map circle {
  fill: rgba(125, 178, 255, 0.5);
  stroke: rgba(214, 229, 255, 0.38);
}

.hero-layout {
  position: relative;
  display: grid;
  gap: 42px;
  align-items: center;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  color: var(--text);
  letter-spacing: -0.055em;
}

h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: clamp(3.6rem, 15vw, 8.8rem);
  line-height: 0.9;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.25rem, 8vw, 4.8rem);
  line-height: 0.98;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.05rem;
  line-height: 1.25;
}

.hero-text {
  max-width: 710px;
  margin-bottom: 32px;
  color: #c3cad6;
  font-size: clamp(1.08rem, 4vw, 1.35rem);
  line-height: 1.55;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border: 1px solid rgba(189, 211, 245, 0.28);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, rgba(232, 240, 255, 0.12), rgba(125, 178, 255, 0.11));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.14), 0 16px 42px rgba(22, 35, 58, 0.28);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 700;
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.button:hover {
  border-color: rgba(204, 223, 255, 0.44);
  background: linear-gradient(180deg, rgba(232, 240, 255, 0.16), rgba(125, 178, 255, 0.15));
  transform: translateY(-1px);
}

.signal-panel {
  position: relative;
  width: min(100%, 430px);
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(20, 27, 38, 0.82), rgba(13, 17, 24, 0.74)),
    radial-gradient(circle at 20% 0%, rgba(125, 178, 255, 0.14), transparent 18rem);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.signal-panel::before {
  position: absolute;
  inset: 12px;
  z-index: -1;
  border: 1px solid rgba(165, 181, 205, 0.08);
  border-radius: 22px;
  content: "";
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  color: var(--text-soft);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.signal-list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.signal-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px;
  border: 1px solid rgba(165, 181, 205, 0.11);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
}

.signal-list dt {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.signal-list dd {
  margin: 0;
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
}

.section-muted {
  border-block: 1px solid rgba(165, 181, 205, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0.008));
}

.split {
  display: grid;
  gap: 32px;
}

.section-copy {
  max-width: 680px;
}

.section-copy p {
  margin-bottom: 18px;
  font-size: 1.06rem;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.feature-list li {
  position: relative;
  padding-left: 24px;
  color: #c3cad6;
}

.feature-list li::before {
  position: absolute;
  top: 0.7em;
  left: 0;
  width: 8px;
  height: 8px;
  border: 1px solid rgba(125, 178, 255, 0.56);
  border-radius: 50%;
  content: "";
  background: rgba(125, 178, 255, 0.18);
  transform: translateY(-50%);
}

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

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

.card {
  min-height: 172px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.044), rgba(255, 255, 255, 0.018)),
    rgba(12, 16, 23, 0.78);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.card:hover {
  border-color: var(--border-strong);
  background:
    linear-gradient(180deg, rgba(125, 178, 255, 0.078), rgba(255, 255, 255, 0.02)),
    rgba(14, 19, 27, 0.86);
  transform: translateY(-2px);
}

.card p {
  margin-bottom: 0;
  color: var(--text-muted);
  font-size: 0.96rem;
}

.closing {
  padding-bottom: 56px;
}

.closing-panel {
  padding: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 85% 0%, rgba(125, 178, 255, 0.12), transparent 24rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.052), rgba(255, 255, 255, 0.018));
  box-shadow: var(--shadow);
}

.closing-panel h2 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(2rem, 7vw, 4.2rem);
}

.closing-panel p:last-child {
  margin-bottom: 0;
}

.site-footer {
  border-top: 1px solid rgba(165, 181, 205, 0.08);
  padding: 24px 0 34px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-soft);
  font-size: 0.9rem;
}

.footer-inner p {
  margin-bottom: 0;
  color: inherit;
}

.footer-inner a {
  width: fit-content;
  transition: color 160ms ease;
}

.footer-inner a:hover {
  color: var(--text);
}

@media (min-width: 640px) {
  .container {
    width: min(100% - 64px, var(--max-width));
  }

  .nav-link {
    display: inline-flex;
  }

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

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 900px) {
  .section {
    padding: 112px 0;
  }

  .hero {
    padding: 104px 0 132px;
  }

  .hero-layout {
    grid-template-columns: minmax(0, 1fr) 380px;
  }

  .signal-panel {
    justify-self: end;
  }

  .split {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    align-items: start;
  }

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

  .closing {
    padding-bottom: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}