:root {
  --ink: #101418;
  --muted: #59646f;
  --paper: #f8f7f3;
  --white: #ffffff;
  --line: #d9ded8;
  --green: #1f8a5b;
  --lime: #b8e05f;
  --cyan: #3ab7c8;
  --amber: #f0b449;
  --charcoal: #20262c;
  --shadow: 0 24px 70px rgba(16, 20, 24, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: "Noto Sans JP", "Inter", sans-serif;
  line-height: 1.75;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(248, 247, 243, 0.88);
  border-bottom: 1px solid rgba(16, 20, 24, 0.08);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Inter", sans-serif;
  font-weight: 900;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--ink);
  border-radius: 7px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2.2vw, 30px);
  color: var(--muted);
  font-family: "Inter", sans-serif;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.site-nav a {
  transition: color 0.2s ease;
}

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

.nav-contact {
  padding: 9px 14px;
  color: var(--white) !important;
  background: var(--green);
  border-radius: 7px;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: clamp(36px, 6vw, 90px);
  min-height: calc(100vh - 71px);
  padding: clamp(70px, 9vw, 120px) clamp(20px, 5vw, 72px) clamp(54px, 7vw, 88px);
  background:
    linear-gradient(90deg, rgba(248, 247, 243, 0.95), rgba(248, 247, 243, 0.68)),
    repeating-linear-gradient(135deg, rgba(31, 138, 91, 0.12) 0 1px, transparent 1px 18px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 10px;
  font-size: clamp(44px, 8vw, 112px);
  font-weight: 900;
  line-height: 0.98;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(30px, 4.5vw, 64px);
  font-weight: 900;
  line-height: 1.12;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(22px, 2.3vw, 34px);
  font-weight: 900;
  line-height: 1.25;
}

.hero-lead {
  margin-bottom: 20px;
  color: var(--charcoal);
  font-family: "Inter", sans-serif;
  font-size: clamp(22px, 3vw, 44px);
  font-weight: 900;
}

.hero-text {
  max-width: 650px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 20px);
}

.hero-actions,
.site-footer div {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  font-weight: 800;
  line-height: 1.2;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(16, 20, 24, 0.14);
}

.button.primary {
  color: var(--white);
  background: var(--ink);
}

.button.secondary {
  background: var(--white);
}

.button.large {
  min-width: min(100%, 300px);
}

.hero-visual {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  background: var(--charcoal);
  border: 1px solid rgba(16, 20, 24, 0.16);
  border-radius: 8px;
  box-shadow: var(--shadow);
  isolation: isolate;
}

.hero-visual::before {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(transparent 23px, rgba(255, 255, 255, 0.08) 24px),
    linear-gradient(90deg, transparent 23px, rgba(255, 255, 255, 0.08) 24px);
  background-size: 24px 24px;
  mask-image: linear-gradient(to bottom, transparent, black 18%, black 82%, transparent);
}

.orbit {
  position: absolute;
  border: 1px solid rgba(184, 224, 95, 0.5);
  border-radius: 50%;
}

.orbit-a {
  width: 420px;
  height: 420px;
  right: -130px;
  top: 44px;
}

.orbit-b {
  width: 280px;
  height: 280px;
  left: -80px;
  bottom: 40px;
  border-color: rgba(58, 183, 200, 0.55);
}

.signal-grid {
  position: absolute;
  inset: 64px 52px auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.signal-grid span {
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--lime), var(--cyan));
  border-radius: 7px;
  opacity: 0.88;
}

.visual-panel {
  position: absolute;
  right: 26px;
  bottom: 28px;
  left: 26px;
  padding: 26px;
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  backdrop-filter: blur(16px);
}

.visual-panel p {
  margin-bottom: 8px;
  color: var(--lime);
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.visual-panel strong {
  display: block;
  font-family: "Inter", sans-serif;
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 900;
  line-height: 1;
}

.visual-panel small {
  display: block;
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.74);
  font-weight: 700;
}

.mission,
.services,
.consult,
.news,
.careers,
.contact {
  padding: clamp(68px, 9vw, 120px) clamp(20px, 5vw, 72px);
}

.mission {
  display: grid;
  grid-template-columns: minmax(240px, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(28px, 6vw, 80px);
  background: var(--white);
}

.mission-text,
.consult p,
.careers p,
.contact p {
  color: var(--muted);
  font-size: clamp(17px, 1.7vw, 22px);
}

.mission-text {
  max-width: 860px;
  margin-bottom: 0;
}

.services {
  background: #eef4ed;
}

.section-heading {
  max-width: 820px;
  margin-bottom: clamp(32px, 5vw, 58px);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.service-item,
.news-item {
  min-height: 100%;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.service-item.featured {
  color: var(--white);
  background: var(--ink);
  border-color: var(--ink);
}

.service-number {
  display: block;
  margin-bottom: 22px;
  color: var(--amber);
  font-family: "Inter", sans-serif;
  font-size: 42px;
  font-weight: 900;
  line-height: 1;
}

.service-item p,
.news-item p {
  margin-bottom: 0;
  color: var(--muted);
}

.service-item.featured p {
  color: rgba(255, 255, 255, 0.78);
}

.consult {
  display: grid;
  grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1fr) auto;
  align-items: center;
  gap: 28px;
  color: var(--white);
  background: var(--green);
}

.consult .eyebrow,
.consult p {
  color: rgba(255, 255, 255, 0.78);
}

.news {
  background: var(--paper);
}

.news-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.news-item time {
  display: block;
  margin-bottom: 14px;
  color: var(--green);
  font-family: "Inter", sans-serif;
  font-weight: 900;
}

.news-item h3 {
  font-size: clamp(20px, 2vw, 28px);
}

.careers {
  background: var(--white);
}

.careers p {
  max-width: 820px;
}

.status-label {
  display: inline-flex;
  padding: 8px 12px;
  color: var(--green);
  background: #e6f3de;
  border: 1px solid #cfe7bd;
  border-radius: 7px;
  font-family: "Inter", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
}

.contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  background: var(--charcoal);
  color: var(--white);
}

.contact p {
  max-width: 720px;
  color: rgba(255, 255, 255, 0.72);
}

.contact .eyebrow {
  color: var(--lime);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: rgba(255, 255, 255, 0.68);
  background: var(--ink);
}

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

.site-footer a {
  font-family: "Inter", sans-serif;
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
}

@media (max-width: 1000px) {
  .hero,
  .mission,
  .consult {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

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

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

  .consult {
    align-items: start;
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .site-nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  h1 {
    font-size: clamp(44px, 15vw, 72px);
  }

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

  .signal-grid {
    inset: 42px 34px auto;
    gap: 12px;
  }

  .service-list,
  .news-list {
    grid-template-columns: 1fr;
  }

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