:root {
  --night: #111827;
  --night-soft: #1d293d;
  --paper: #f8fafc;
  --white: #ffffff;
  --ink: #172033;
  --muted: #64748b;
  --line: #dbe2ea;
  --coral: #ff6b5f;
  --cyan: #46d6d0;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

.site-header,
main,
footer {
  width: min(1160px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 88px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--night);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  background: var(--coral);
  color: var(--night);
  font-size: 13px;
  letter-spacing: -0.04em;
}

nav { display: flex; gap: 6px; }

nav a {
  padding: 9px 15px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

nav a:hover,
nav a[aria-current="page"] {
  border-color: var(--night);
  background: var(--night);
  color: var(--white);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: 1.45fr 0.8fr;
  align-items: end;
  min-height: 410px;
  padding: clamp(32px, 6vw, 76px);
  overflow: hidden;
  background:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px),
    var(--night);
  background-size: 28px 28px;
  color: var(--white);
}

.hero::after {
  content: "";
  position: absolute;
  top: -95px;
  right: -65px;
  width: 280px;
  height: 280px;
  border: 48px solid var(--cyan);
  border-radius: 50%;
  opacity: 0.85;
}

.kicker {
  margin: 0 0 20px;
  color: var(--coral);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(54px, 8vw, 104px);
  font-weight: 800;
  letter-spacing: -0.065em;
  line-height: 0.88;
}

.summary {
  position: relative;
  z-index: 1;
  max-width: 350px;
  margin: 0;
  padding-left: 22px;
  border-left: 3px solid var(--coral);
  color: #cbd5e1;
  font-size: 18px;
}

.page-grid {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: start;
  padding: 56px 0 72px;
}

.contents {
  position: sticky;
  top: 24px;
  padding-top: 14px;
  border-top: 4px solid var(--coral);
}

.contents-title {
  margin: 0 0 14px;
  color: var(--night);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.contents a {
  display: block;
  padding: 7px 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.contents a:hover { color: var(--coral); }

.document {
  padding: clamp(26px, 5vw, 64px);
  border: 1px solid var(--line);
  background: var(--white);
  box-shadow: 14px 14px 0 #e5eaf0;
}

.intro {
  max-width: 760px;
  margin: 0 0 18px;
  color: #334155;
  font-size: 19px;
}

.document section {
  position: relative;
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--line);
}

.section-number {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--coral);
  font: 800 12px/1 Arial, sans-serif;
  letter-spacing: 0.12em;
}

h2 {
  margin: 0 0 18px;
  color: var(--night);
  font-size: clamp(27px, 3vw, 38px);
  letter-spacing: -0.035em;
  line-height: 1.1;
}

h3 {
  margin: 26px 0 8px;
  color: var(--night-soft);
  font-size: 18px;
}

p { margin: 0 0 15px; }

ul {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

li {
  position: relative;
  margin: 10px 0;
  padding-left: 25px;
}

li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: 0.68em;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.contact-card {
  margin-inline: calc(clamp(26px, 5vw, 64px) * -0.35);
  padding: 32px !important;
  border: 0 !important;
  background: #eef7f7;
}

address {
  color: #475569;
  font-style: normal;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 0 42px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

footer a { color: var(--night); font-weight: 700; }

@media (max-width: 760px) {
  .site-header, main, footer { width: min(100% - 26px, 680px); }
  .site-header { min-height: 74px; }
  .brand { font-size: 12px; letter-spacing: .07em; }
  .brand-mark { width: 36px; height: 36px; }
  nav a { padding: 7px 9px; }
  .hero { grid-template-columns: 1fr; min-height: 380px; gap: 44px; padding: 34px 24px; }
  .hero::after { width: 190px; height: 190px; border-width: 32px; opacity: .55; }
  .summary { max-width: 90%; }
  .page-grid { grid-template-columns: 1fr; padding-top: 34px; }
  .contents { position: static; display: flex; flex-wrap: wrap; gap: 4px 16px; }
  .contents-title { flex-basis: 100%; }
  .contents a { padding: 4px 0; }
  .document { box-shadow: 8px 8px 0 #e5eaf0; }
  footer { flex-direction: column; }
}

@media print {
  body { background: #fff; }
  .site-header, .contents, footer { display: none; }
  main { width: 100%; }
  .hero { min-height: auto; padding: 24px 0; background: #fff; color: #000; }
  .hero::after { display: none; }
  .summary { color: #333; }
  .page-grid { display: block; padding: 0; }
  .document { border: 0; box-shadow: none; padding: 0; }
}