@charset "UTF-8";

:root {
  --color-text: #1d242b;
  --color-subtext: #59636d;
  --color-border: #dce2e7;
  --color-background: #ffffff;
  --color-muted: #f5f7f8;
  --color-accent: #1f4b5f;
  --color-accent-hover: #173a49;
  --container-width: 1080px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-background);
  font-family:
    -apple-system,
    BlinkMacSystemFont,
    "Hiragino Kaku Gothic ProN",
    "Yu Gothic",
    "YuGothic",
    "Noto Sans JP",
    "Segoe UI",
    sans-serif;
  line-height: 1.8;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  height: auto;
}

.container {
  width: min(calc(100% - 40px), var(--container-width));
  margin: 0 auto;
}

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.98);
}

.header-inner {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.site-name {
  display: inline-flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.25;
}

.site-name-ja {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.site-name-en {
  margin-top: 3px;
  color: var(--color-subtext);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
}

.global-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
}

.global-nav a {
  color: var(--color-subtext);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.global-nav a:hover,
.global-nav a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 5px;
}

.hero {
  padding: 112px 0 120px;
  border-bottom: 1px solid var(--color-border);
}

.hero-inner {
  max-width: var(--container-width);
}

.eyebrow,
.section-label {
  margin: 0 0 16px;
  color: var(--color-accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 4.7rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.2;
}

.hero-description {
  max-width: 650px;
  margin: 32px 0 0;
  color: var(--color-subtext);
  font-size: 1.08rem;
}

.primary-button {
  display: inline-block;
  margin-top: 40px;
  padding: 13px 26px;
  border: 1px solid var(--color-accent);
  border-radius: 4px;
  color: #ffffff;
  background: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}

.primary-button:hover,
.primary-button:focus-visible {
  border-color: var(--color-accent-hover);
  background: var(--color-accent-hover);
}

.section {
  padding: 96px 0;
}

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

.section-heading {
  margin-bottom: 40px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.4;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  min-height: 260px;
  padding: 30px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-background);
}

.service-number {
  margin: 0 0 36px;
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.service-card h3 {
  margin: 0 0 14px;
  font-size: 1.18rem;
}

.service-card p:last-child {
  margin: 0;
  color: var(--color-subtext);
  font-size: 0.95rem;
}

.profile-list {
  margin: 0;
  border-top: 1px solid var(--color-border);
}

.profile-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}

.profile-row dt {
  font-weight: 700;
}

.profile-row dd {
  margin: 0;
  color: var(--color-subtext);
}

.contact-area {
  max-width: var(--container-width);
}

.contact-description {
  margin: 0;
  color: var(--color-subtext);
}

.mail-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--color-accent);
  font-size: clamp(1.25rem, 4vw, 2rem);
  font-weight: 700;
  text-decoration: none;
  word-break: break-all;
}

.mail-link:hover,
.mail-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 6px;
}

.contact-note {
  margin: 14px 0 0;
  color: var(--color-subtext);
  font-size: 0.88rem;
}

.site-footer {
  padding: 28px 0;
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  color: var(--color-subtext);
  font-size: 0.84rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  text-decoration: none;
}

.footer-inner a:hover,
.footer-inner a:focus-visible {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.privacy-main {
  padding: 80px 0 104px;
}

.privacy-header {
  margin-bottom: 48px;
}

.privacy-header h1 {
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.3;
}

.privacy-header p {
  margin: 16px 0 0;
  color: var(--color-subtext);
}

.privacy-content {
  max-width: 820px;
}

.privacy-content section {
  margin-top: 42px;
}

.privacy-content h2 {
  margin: 0 0 14px;
  font-size: 1.3rem;
}

.privacy-content p,
.privacy-content li {
  color: var(--color-subtext);
}

.privacy-content ul {
  padding-left: 1.5em;
}

.privacy-content a {
  color: var(--color-accent);
}

.back-link {
  display: inline-block;
  margin-top: 52px;
  color: var(--color-accent);
  font-weight: 700;
  text-decoration: none;
}

.back-link:hover,
.back-link:focus-visible {
  text-decoration: underline;
  text-underline-offset: 5px;
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 32px), var(--container-width));
  }

  .header-inner {
    min-height: auto;
    padding: 18px 0;
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .global-nav {
    gap: 18px;
  }

  .hero {
    padding: 80px 0 88px;
  }

  .hero h1 br {
    display: none;
  }

  .section {
    padding: 72px 0;
  }

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

  .service-card {
    min-height: auto;
  }

  .profile-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .privacy-main {
    padding: 64px 0 80px;
  }
}