@font-face {
  font-family: "Noto Serif SC";
  src: url("assets/fonts/NotoSerifSC-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Serif SC";
  src: url("assets/fonts/NotoSerifSC-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Noto Serif SC";
  src: url("assets/fonts/NotoSerifSC-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  --surface-canvas: #f4f4f1;
  --surface-muted: #e7e7e2;
  --brand-ink: #151613;
  --brand-primary: #1e201c;
  --brand-accent: #11120f;
  --text-primary: #1b1c19;
  --text-secondary: #5f615b;
  --text-tertiary: #858780;
  --border-subtle: rgba(21, 22, 19, 0.14);
  --shadow-media: none;
  --page-x: 48px;
  --content-max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--surface-canvas);
  color: var(--text-primary);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: 0;
}

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

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

a:focus-visible {
  outline: 1px solid var(--brand-accent);
  outline-offset: 4px;
}

h1,
h2,
h3,
p,
figure {
  margin: 0;
}

h1,
h2,
h3 {
  color: var(--brand-ink);
  font-family: "Noto Serif SC", serif;
  font-weight: 500;
  letter-spacing: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 18px var(--page-x);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(244, 244, 241, 0.88);
  color: var(--brand-ink);
  backdrop-filter: blur(18px);
}

.brand-link {
  display: inline-flex;
  align-items: center;
  font-family: "Noto Serif SC", serif;
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--brand-accent);
}

.hero,
.about-section,
.site-footer {
  width: min(100% - var(--page-x) * 2, var(--content-max));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 54px;
  padding: 104px 0 96px;
  scroll-margin-top: 96px;
}

.hero-copy-block {
  width: min(100%, 760px);
  margin: 0 auto;
  text-align: center;
}

.section-kicker {
  color: var(--text-tertiary);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.hero h1 {
  margin-top: 0;
  font-size: 76px;
  line-height: 1.08;
  letter-spacing: 0.08em;
}

.hero-subtitle {
  margin-top: 18px;
  color: var(--text-primary);
  font-family: "Noto Serif SC", serif;
  font-size: 22px;
  line-height: 1.45;
}

.hero-copy {
  width: min(100%, 540px);
  margin: 18px auto 0;
  color: var(--text-secondary);
  font-size: 16px;
}

.hero-visual {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  border-radius: 0;
  background: var(--surface-muted);
  box-shadow: var(--shadow-media);
}

.hero-visual img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
  object-position: center 48%;
  filter: saturate(0.72) contrast(1.04);
}

.about-section {
  scroll-margin-top: 96px;
}

.about-section {
  padding: 92px 0 84px;
  border-top: 1px solid var(--border-subtle);
}

.about-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 88px;
  align-items: start;
  margin-top: 24px;
}

.about-layout h2,
.about-layout h2 {
  font-size: 32px;
  line-height: 1.4;
}

.about-copy {
  display: grid;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 16px;
}

.site-footer {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
  padding: 36px 0 48px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-tertiary);
  font-size: 14px;
}

.footer-brand {
  margin-bottom: 4px;
  color: var(--text-secondary);
  font-weight: 650;
}

.footer-meta a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 14px;
  font-style: normal;
}

@media (max-width: 860px) {
  :root {
    --page-x: 24px;
  }

  .site-header {
    gap: 18px;
    padding: 14px var(--page-x);
  }

  .site-nav {
    gap: 14px;
    font-size: 13px;
  }

  .hero {
    gap: 32px;
    padding: 58px 0 64px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-subtitle {
    font-size: 21px;
  }

  .hero-visual img {
    aspect-ratio: 4 / 3;
  }

  .about-section {
    padding: 62px 0 56px;
  }

  .about-layout {
    grid-template-columns: 1fr;
  }

  .about-layout {
    gap: 28px;
  }

  .about-layout h2 {
    font-size: 28px;
  }

}

@media (max-width: 600px) {
  :root {
    --page-x: 18px;
  }

  .site-nav {
    display: none;
  }

  .brand-link {
    font-size: 16px;
  }

  .hero {
    padding-top: 44px;
  }

  .hero h1 {
    font-size: 42px;
  }

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

  .site-footer {
    display: block;
  }

  .footer-links {
    justify-content: flex-start;
    margin-top: 18px;
  }
}