:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --text: #111923;
  --muted: #5d6975;
  --line: #d5dde5;
  --dark: #0b1d2e;
  --dark-muted: #c7d2dc;
  --accent: #1f4f78;
  --accent-soft: #e6eef5;
  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 16px;
  line-height: 1.55;
}

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

.container {
  width: min(var(--max), calc(100% - 48px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 246, 248, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dark);
}

.brand-mark {
  width: 14px;
  height: 14px;
  display: inline-block;
  background: linear-gradient(135deg, var(--accent), var(--dark));
  transform: rotate(45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.hero {
  padding: 112px 0 96px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 72px;
  align-items: end;
}

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 870px;
  margin-bottom: 0;
  font-size: clamp(48px, 7.2vw, 92px);
  line-height: 0.96;
  letter-spacing: -0.06em;
  font-weight: 400;
  color: var(--dark);
}

.hero-copy {
  color: var(--muted);
  font-size: 18px;
}

.hero-copy p:last-child {
  margin-bottom: 0;
}

.section {
  padding: 88px 0;
}

.border-top {
  border-top: 1px solid var(--line);
}

.two-column {
  display: grid;
  grid-template-columns: 0.42fr 1fr;
  gap: 72px;
}

.list-block ul {
  list-style: none;
  padding: 0;
  margin: 0;
  border-top: 1px solid var(--line);
}

.list-block li {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
  font-size: 22px;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-heading h2,
.inquiry h2 {
  margin-bottom: 0;
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 400;
  color: var(--dark);
}

.cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.card {
  min-height: 300px;
  padding: 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.56);
}

.card:nth-child(2n) {
  background: rgba(230, 238, 245, 0.42);
}

.card-number {
  display: block;
  margin-bottom: 44px;
  color: var(--accent);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.14em;
}

.card h3,
.process-item h3 {
  margin-bottom: 14px;
  font-size: 21px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  font-weight: 400;
  color: var(--dark);
}

.card p,
.process-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

.muted {
  background: var(--dark);
  color: var(--surface);
}

.muted .section-heading h2,
.muted .process-item h3 {
  color: var(--surface);
}

.muted .section-label,
.muted .process-item p {
  color: var(--dark-muted);
}

.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.process-item {
  min-height: 260px;
  padding: 28px;
  background: var(--dark);
}

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

.principles-copy p {
  margin-bottom: 24px;
  font-size: 25px;
  line-height: 1.32;
  letter-spacing: -0.03em;
}

.principles-copy p:last-child {
  margin-bottom: 0;
}

.inquiry {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.inquiry-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: end;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--surface);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.button:hover {
  background: transparent;
  color: var(--accent);
}

.site-footer {
  padding: 32px 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 980px) {
  .hero-grid,
  .two-column,
  .inquiry-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .cards,
  .process {
    grid-template-columns: 1fr 1fr;
  }

  .site-nav {
    display: none;
  }

  .hero {
    padding: 88px 0 72px;
  }

  .section {
    padding: 72px 0;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(var(--max), calc(100% - 32px));
  }

  .header-inner {
    min-height: 64px;
  }

  h1 {
    font-size: clamp(42px, 15vw, 68px);
  }

  .hero-copy {
    font-size: 16px;
  }

  .cards,
  .process {
    grid-template-columns: 1fr;
  }

  .card,
  .process-item {
    min-height: auto;
  }

  .list-block li {
    font-size: 19px;
  }

  .principles-copy p {
    font-size: 21px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
  }

  .button {
    width: 100%;
  }
}