:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --ink: #171717;
  --muted: #626262;
  --line: #ddddda;
  --accent: #505050;
  --accent-dark: #171717;
  --shadow: 0 20px 60px rgba(21, 25, 29, 0.08);
  --radius: 28px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 18px;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: '';
  background:
    radial-gradient(circle at 20% 0%, rgba(0, 0, 0, 0.035), transparent 34rem),
    linear-gradient(180deg, rgba(255, 255, 255, 0.78), transparent 34rem);
}

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

.site-shell {
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 34px 0 68px;
}

.brand img {
  width: clamp(200px, 22vw, 310px);
  height: auto;
}

.header-link,
.text-link,
.site-footer a {
  color: var(--ink);
  text-decoration: none;
  text-underline-offset: 0.22em;
}

.header-link:hover,
.text-link:hover,
.site-footer a:hover {
  text-decoration: underline;
}

.header-link {
  color: var(--muted);
  font-size: 0.9rem;
}

.hero {
  max-width: 960px;
  padding: 42px 0 102px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1.2;
  text-transform: uppercase;
}

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

h1 {
  max-width: 900px;
  margin-bottom: 30px;
  font-size: clamp(2.72rem, 6.1vw, 5.55rem);
  font-weight: 560;
  letter-spacing: 0.002em;
  line-height: 1.02;
}

h2 {
  margin-bottom: 22px;
  font-size: clamp(1.72rem, 3.2vw, 3.35rem);
  font-weight: 600;
  letter-spacing: -0.004em;
  line-height: 1.12;
}

.hero-copy {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.45;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 22px;
  border: 1px solid var(--ink);
  border-radius: 999px;
  background: var(--ink);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 660;
  line-height: 1.1;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
  background: #050505;
  border-color: #050505;
}

.button-light {
  background: #ffffff;
  border-color: #ffffff;
  color: var(--accent-dark);
}

.button-light:hover {
  background: #f7f7f5;
  border-color: #f7f7f5;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
  gap: 22px;
  margin-bottom: 96px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--shadow);
}

.panel-large {
  padding: clamp(28px, 5vw, 56px);
}

.panel-large h2 {
  max-width: 760px;
  font-size: clamp(1.72rem, 3vw, 3.15rem);
}

.panel-large p {
  max-width: 720px;
  color: var(--muted);
}

.panel-large p:last-child,
.panel-note p:last-child,
.section-copy p:last-child,
.stealth p:last-of-type {
  margin-bottom: 0;
}

.panel-note {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(26px, 4vw, 42px);
  background: var(--ink);
  color: #ffffff;
}

.panel-note p {
  margin-bottom: 10px;
  font-size: clamp(1.12rem, 1.85vw, 1.72rem);
  font-weight: 620;
  letter-spacing: 0.018em;
  line-height: 1.12;
}

.section {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(42px, 7vw, 92px);
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  position: sticky;
  top: 28px;
  align-self: start;
}

.section-copy {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
}

.service-list {
  display: grid;
  gap: 14px;
}

.service-list article {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 20px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}

.service-list article:last-child {
  border-bottom: 1px solid var(--line);
}

.service-list span {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.service-list p {
  max-width: 690px;
  margin-bottom: 0;
  color: var(--ink);
  font-size: clamp(1.08rem, 1.55vw, 1.34rem);
  font-weight: 560;
  letter-spacing: 0;
  line-height: 1.42;
}

.stealth {
  margin: 72px 0 42px;
  padding: clamp(34px, 7vw, 72px);
  border-radius: calc(var(--radius) + 10px);
  background: var(--accent-dark);
  color: #ffffff;
  box-shadow: var(--shadow);
}

.stealth .eyebrow {
  color: #b8b8b8;
}

.stealth h2 {
  max-width: 880px;
}

.stealth p {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1.08rem, 1.5vw, 1.28rem);
}

.stealth .button {
  margin-top: 34px;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 38px 0 48px;
  color: var(--muted);
  font-size: 0.92rem;
}

.site-footer p {
  margin-bottom: 0;
}

@media (max-width: 860px) {
  body {
    font-size: 17px;
  }

  .site-shell {
    width: min(100% - 28px, var(--max));
  }

  .site-header {
    align-items: flex-start;
    flex-direction: column;
    padding-bottom: 46px;
  }

  .hero {
    padding-top: 22px;
    padding-bottom: 86px;
  }

  h1 {
    margin-bottom: 26px;
    font-size: clamp(2.38rem, 11.4vw, 4rem);
  }

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

  .intro-grid {
    margin-bottom: 58px;
  }

  .section {
    gap: 28px;
    padding: 68px 0;
  }

  .section-heading {
    position: static;
  }

  .service-list article {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  .brand img {
    width: min(260px, 100%);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .panel-large,
  .panel-note,
  .stealth {
    border-radius: 22px;
  }
}