:root {
  color-scheme: light;
  --ink: #18202a;
  --muted: #66717f;
  --line: #dfe5ec;
  --paper: #f7f4ee;
  --surface: #ffffff;
  --accent: #1c6b65;
  --accent-dark: #124b47;
  --gold: #c58a2a;
  --rose: #b85c62;
  --shadow: 0 24px 70px rgba(24, 32, 42, 0.14);
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, system-ui,
    sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(28, 107, 101, 0.08), transparent 38%),
    linear-gradient(215deg, rgba(184, 92, 98, 0.08), transparent 34%),
    var(--paper);
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(223, 229, 236, 0.8);
  background: rgba(247, 244, 238, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--accent);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--muted);
  font-size: 14px;
}

.nav a {
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(320px, 0.94fr);
  gap: clamp(36px, 7vw, 96px);
  align-items: center;
  min-height: calc(100vh - 72px);
  padding: clamp(56px, 8vw, 108px) clamp(20px, 5vw, 72px) 64px;
}

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

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 24px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 1.05;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.16;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: 20px;
}

.lead {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 20px;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
  box-shadow: 0 14px 28px rgba(28, 107, 101, 0.24);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.62);
}

.hero-visual {
  position: relative;
  min-height: 500px;
}

.visual-panel {
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.panel-main {
  position: absolute;
  inset: 24px 0 0 18px;
  overflow: hidden;
  padding: 28px;
}

.panel-main::before {
  position: absolute;
  inset: auto -16% -18% auto;
  width: 60%;
  height: 52%;
  border-radius: 40px;
  background:
    linear-gradient(135deg, rgba(28, 107, 101, 0.35), rgba(197, 138, 42, 0.2)),
    repeating-linear-gradient(45deg, transparent 0 12px, rgba(255, 255, 255, 0.5) 12px 13px);
  content: "";
  transform: rotate(-7deg);
}

.panel-bar {
  width: 42%;
  height: 12px;
  border-radius: 999px;
  background: #d7dee6;
}

.confidential-card {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 8px;
  width: min(100%, 360px);
  margin-top: 72px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.confidential-card strong {
  font-size: 28px;
}

.confidential-card small {
  color: var(--muted);
}

.lock-dot {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background:
    linear-gradient(var(--accent), var(--accent)) center 22px / 20px 14px no-repeat,
    radial-gradient(circle at 50% 42%, transparent 7px, var(--accent) 8px 11px, transparent 12px);
}

.metric-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  width: min(100%, 380px);
  margin-top: 32px;
}

.metric-grid span {
  height: 74px;
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(28, 107, 101, 0.14), rgba(197, 138, 42, 0.16));
}

.panel-sub {
  position: absolute;
  right: 12px;
  bottom: 44px;
  display: grid;
  gap: 8px;
  width: 220px;
  padding: 22px;
}

.panel-sub span {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 10px;
  color: #fff;
  background: var(--rose);
  font-size: 12px;
  font-weight: 700;
}

.section {
  padding: clamp(56px, 8vw, 100px) clamp(20px, 5vw, 72px);
}

.summary-band {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  padding-top: 0;
  padding-bottom: 0;
  background: var(--ink);
}

.summary-item {
  display: grid;
  gap: 8px;
  min-height: 148px;
  align-content: center;
  padding: 28px;
  color: #fff;
  background: var(--ink);
}

.summary-item strong {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
}

.summary-item span {
  color: rgba(255, 255, 255, 0.72);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(32px, 6vw, 88px);
  align-items: start;
}

.text-stack {
  color: var(--muted);
  font-size: 17px;
  line-height: 2;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 32px;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.scope-card {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
}

.scope-number {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--gold);
  font-weight: 800;
}

.scope-card p {
  color: var(--muted);
  line-height: 1.8;
}

.access-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin: 0 clamp(20px, 5vw, 72px) clamp(56px, 8vw, 96px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.access-section p {
  max-width: 720px;
  color: var(--muted);
  line-height: 1.9;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 13px;
}

@media (max-width: 960px) {
  .hero,
  .split {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 420px;
  }

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

  .access-section {
    display: grid;
  }
}

@media (max-width: 640px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    justify-content: space-between;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .hero-visual {
    min-height: 360px;
  }

  .panel-main {
    inset: 0;
    padding: 20px;
  }

  .confidential-card {
    margin-top: 42px;
  }

  .panel-sub {
    right: 10px;
    bottom: 8px;
    width: 190px;
  }

  .scope-grid,
  .summary-band {
    grid-template-columns: 1fr;
  }

  .summary-item {
    min-height: 118px;
  }

  .site-footer {
    flex-direction: column;
  }
}