:root {
  --paper: #f3f0e8;
  --paper-2: #e7e1d4;
  --ink: #1a1916;
  --muted: #5e5a52;
  --line: #d5cec1;
  --pine: #1d4038;
  --white: #fbfaf6;
  --danger: #8c2f2f;
  --header: 68px;
  --max: 1120px;
  --serif: "Noto Serif KR", "Batang", "Times New Roman", serif;
  --sans: Pretendard, "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--header); }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

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

a { color: inherit; }

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

h1, h2, h3 { font-family: var(--serif); font-weight: 600; letter-spacing: -0.03em; line-height: 1.28; }

:focus-visible {
  outline: 2px solid var(--pine);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -40px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 12px;
  z-index: 40;
}

.skip:focus { top: 12px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin-inline: auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: var(--header);
  padding: 0 20px;
  background: rgba(243, 240, 232, 0.94);
  border-bottom: 1px solid transparent;
}

.header.is-scrolled { border-bottom-color: var(--line); }

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.03em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav a {
  text-decoration: none;
  font-size: 14px;
  color: var(--ink);
}

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

.nav-cta {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  background: var(--ink);
  color: var(--paper) !important;
}

.nav-cta:hover { background: var(--pine); }

.header-tools { display: none; align-items: center; gap: 8px; }

.nav-toggle {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  display: block;
  width: 16px;
  height: 1px;
  background: var(--ink);
  position: relative;
}

.nav-toggle-lines { margin: 0 auto; }

.nav-toggle-lines::before,
.nav-toggle-lines::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-lines::before { top: -5px; }
.nav-toggle-lines::after { top: 5px; }

.hero { padding: 28px 0 64px; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.8fr);
  gap: 48px;
  align-items: end;
}

.eyebrow {
  margin-bottom: 18px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.6rem); }

.lede {
  max-width: 38rem;
  margin-top: 22px;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font: inherit;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover { background: var(--pine); border-color: var(--pine); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  margin-top: 12px;
}

.btn-ghost:hover { background: var(--paper); color: var(--pine); }

.quiet-link { color: var(--ink); }

.facts {
  margin: 0;
  border-top: 1px solid var(--ink);
}

.facts div {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.facts dt { color: var(--muted); font-size: 13px; }
.facts dd { margin: 0; }

.blog-banner-link {
  display: block;
  text-decoration: none;
  background: var(--white);
  border-block: 1px solid var(--ink);
  color: var(--ink);
}

.blog-banner-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  padding: 32px 0;
}

.blog-banner-inner > * { min-width: 0; }

.blog-banner h2 { font-size: clamp(1.6rem, 3vw, 2.1rem); }

.blog-copy {
  max-width: 36rem;
  margin-top: 8px;
  color: var(--muted);
}

.blog-banner-go {
  flex: 0 0 auto;
  font-weight: 600;
  text-align: right;
}

.blog-banner-go span {
  display: block;
  margin-top: 4px;
  font-weight: 400;
  font-size: 14px;
  color: var(--pine);
  overflow-wrap: anywhere;
}

.blog-banner-link:hover { background: var(--pine); color: var(--paper); }
.blog-banner-link:hover .eyebrow,
.blog-banner-link:hover .blog-copy,
.blog-banner-link:hover .blog-banner-go span { color: #e7e1d4; }

.band {
  border-block: 1px solid var(--line);
  background: var(--pine);
  color: #f3f0e8;
}

.band-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  font-size: 15px;
}

.section { padding: 88px 0; }

.section-alt { background: #ebe6db; }

.section-head { max-width: 40rem; margin-bottom: 36px; }

h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); }

.section-lead { margin-top: 14px; color: var(--muted); }

.idx {
  margin: 0;
  font-variant-numeric: tabular-nums;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--pine);
}

.work-list { border-bottom: 1px solid var(--line); }

.work-row {
  display: grid;
  grid-template-columns: 56px minmax(140px, 0.7fr) 1.4fr;
  gap: 20px;
  align-items: baseline;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.work-row h3 { font-size: 1.35rem; }
.work-row p:last-child { color: var(--muted); }

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.steps li {
  padding: 22px 18px 8px 0;
  border-top: 1px solid var(--ink);
}

.steps h3 { margin: 14px 0 8px; font-size: 1.35rem; }
.steps p:last-child { color: var(--muted); }

.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 32px;
}

.principles li {
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.principles h3 { font-size: 1.25rem; margin-bottom: 8px; }
.principles p { color: var(--muted); }

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: start;
}

.contact-meta { margin: 0; }
.contact-meta div {
  display: grid;
  grid-template-columns: 128px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.contact-meta div:last-child { border-bottom: 1px solid var(--line); }
.contact-meta dt { font-size: 13px; color: var(--muted); }
.contact-meta dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.contact-meta a { color: var(--pine); }

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--muted);
  font-size: 14px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr auto;
  gap: 16px;
  align-items: start;
}

.footer-name {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
}

.footer a { color: var(--pine); }

@media (max-width: 900px) {
  .header-tools { display: flex; }

  .nav {
    display: none;
    position: absolute;
    top: var(--header);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 16px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

  .nav.is-open { display: flex; }
  .nav a { padding: 12px 0; border-top: 1px solid var(--line); }
  .nav .nav-cta {
    justify-content: center;
    margin-top: 12px;
    border-top: 0;
  }

  .hero-grid,
  .steps,
  .principles,
  .contact-grid,
  .footer-grid,
  .work-row,
  .band-row,
  .blog-banner-inner {
    grid-template-columns: 1fr;
    display: grid;
  }

  .blog-banner-go { text-align: left; }
  .contact-meta div {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .band-row, .footer-grid { display: grid; }
  .hero { padding-top: 12px; }
  .section { padding: 64px 0; }
  .wrap { width: min(var(--max), calc(100% - 32px)); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}