:root {
  --color-ink: #1f3432;
  --color-ink-soft: #5a6b68;
  --color-surface: #f7f3ed;
  --color-surface-strong: #e4ece9;
  --color-surface-accent: #fffdf8;
  --color-line: #c2d0ca;
  --color-brand: #274543;
  --color-brand-soft: #7e9a92;
  --color-highlight: #b98b45;
  --color-white: #ffffff;
  --shadow-soft: 0 20px 40px rgb(31 52 50 / 0.08);
  --layout-width: min(1120px, calc(100% - 48px));
  --radius-large: 32px;
  --radius-medium: 20px;
  --radius-small: 14px;
  --transition-base: 180ms ease;
  --font-heading: "Yu Mincho", "Hiragino Mincho ProN", serif;
  --font-body: "Yu Gothic", "Hiragino Sans", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background: linear-gradient(180deg, #f0ece4 0%, var(--color-surface) 45%, #eef3f1 100%);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.7;
}

body,
h1,
h2,
h3,
p,
ul,
dl,
dd {
  margin: 0;
}

ul {
  list-style: none;
  padding: 0;
}

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

img,
svg {
  display: block;
  max-width: 100%;
}

.page__skip-link {
  position: absolute;
  inset-block-start: 16px;
  inset-inline-start: 16px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--color-line);
  border-radius: 100vmax;
  background: var(--color-white);
  translate: 0 -160%;
  transition:
    translate var(--transition-base),
    background-color var(--transition-base);
}

.page__skip-link:focus {
  translate: 0 0;
}

.site-header,
.site-footer,
.section__inner,
.hero__inner {
  width: var(--layout-width);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  padding: 20px 0;
  backdrop-filter: blur(18px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 22px;
  border: 1px solid rgb(255 255 255 / 0.55);
  border-radius: var(--radius-large);
  background: rgb(255 253 248 / 0.8);
  box-shadow: var(--shadow-soft);
}

.site-branding {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.site-branding__eyebrow,
.section__eyebrow,
.hero__eyebrow {
  color: var(--color-highlight);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.site-branding__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.interactive-link--branding {
  justify-content: flex-start;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.interactive-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid transparent;
  border-radius: 100vmax;
  background: transparent;
  font-weight: 700;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    scale var(--transition-base);
}

.interactive-link--button {
  background: var(--color-brand);
  color: var(--color-white);
  box-shadow: var(--shadow-soft);
}

.interactive-link--subtle {
  border-color: var(--color-line);
  background: rgb(255 255 255 / 0.72);
}

.icon {
  inline-size: 1.1rem;
  block-size: 1.1rem;
  flex: 0 0 auto;
}

.icon svg {
  inline-size: 100%;
  block-size: 100%;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.section {
  padding: 40px 0;
}

.section__inner {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.section__heading-group,
.hero__heading-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.section__title,
.hero__title {
  font-family: var(--font-heading);
  line-height: 1.25;
}

.section__title {
  font-size: clamp(1.9rem, 1.3rem + 2vw, 2.8rem);
}

.site-footer {
  padding: 16px 0 40px;
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 28px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-soft);
}

.site-footer__office {
  font-weight: 700;
}

@media (any-hover: hover) {
  .interactive-link:hover,
  .interactive-link:focus {
    border-color: var(--color-highlight);
    background: var(--color-surface-accent);
    box-shadow: 0 10px 24px rgb(31 52 50 / 0.09);
    scale: 1.03;
  }

  .interactive-link--button:hover,
  .interactive-link--button:focus {
    background: #315553;
    color: var(--color-white);
  }

  .interactive-link--subtle:hover,
  .interactive-link--subtle:focus {
    background: var(--color-white);
  }
}

@media (width <= 900px) {
  .site-header {
    position: static;
    padding: 16px 0 0;
  }

  .site-header__inner,
  .site-footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (width <= 640px) {
  :root {
    --layout-width: min(100% - 24px, 1120px);
    --radius-large: 24px;
  }

  .site-header__inner {
    padding: 16px;
  }

  .site-nav__list {
    gap: 8px;
  }

  .site-footer__inner {
    padding: 20px;
  }
}