@import url("https://fonts.googleapis.com/css2?family=Gothic+A1:wght@400;500;700;900&family=Noto+Sans+KR:wght@400;500;700&display=swap");

:root {
  --c-primary: #4D5B1F;
  --c-second: #8FA31E;
  --c-bg: #FAFAE8;
  --c-text: #1F2410;
  --c-accent: #C2410C;
  --radius: 4px;
  --maxw: none;
  --inner: 1080px;
  --leading: 1.70;
  --rail-w: 264px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}

body {
  margin: 0;
  font-family: "Noto Sans KR", -apple-system, sans-serif;
  color: var(--c-text);
  background: #fff;
  line-height: var(--leading);
}

h1, h2, h3, .rail-mark span {
  font-family: "Gothic A1", "Noto Sans KR", sans-serif;
}

a { color: inherit; }
img { max-width: 100%; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--c-primary);
  color: #fff;
  padding: 10px 16px;
  z-index: 300;
}
.skip-link:focus {
  left: 8px;
  top: 8px;
}

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

/* ---------- Left index rail (fixed header + chapter index) ---------- */
.index-rail {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--rail-w);
  height: 100vh;
  background: var(--c-primary);
  color: #F3F6DC;
  display: flex;
  flex-direction: column;
  padding: 26px 22px;
  z-index: 200;
  overflow-y: auto;
  border-right: 8px solid var(--c-second);
}

.rail-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 34px;
  color: #fff;
}
.rail-mark svg { flex-shrink: 0; color: var(--c-accent); }
.rail-mark span {
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  font-weight: 700;
  color: #E7EEC0;
}

.index-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: auto;
}
.index-nav a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  text-decoration: none;
  color: #E7EEC0;
  font-size: 0.92rem;
  padding: 11px 10px;
  border-radius: var(--radius);
  border-left: 3px solid transparent;
}
.index-nav a:hover,
.index-nav a:focus-visible {
  background: rgba(255,255,255,0.08);
  border-left-color: var(--c-accent);
  color: #fff;
}
.chap-no {
  font-family: "Gothic A1", sans-serif;
  font-weight: 900;
  color: var(--c-accent);
  font-size: 0.82rem;
}
.chap-name { font-weight: 500; }

.rail-cta {
  margin-top: 24px;
}
.rail-cta .cta--call {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius);
  background: var(--c-accent);
  color: #fff;
  box-shadow: 4px 4px 0 rgba(0,0,0,0.22);
}

.hamburger-btn { display: none; }

/* ---------- Main content ---------- */
.main {
  margin-left: var(--rail-w);
  max-width: var(--maxw);
}

.inner {
  max-width: var(--inner);
  margin: 0 auto;
  padding: 0 40px;
}

/* Hero */
.hero {
  width: 100%;
  background: var(--c-bg);
  padding: 64px 0 44px;
}
.hero-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-accent);
  font-weight: 700;
  margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 2.9rem);
  margin: 0 0 16px;
  color: var(--c-primary);
}
.hero-sub {
  font-size: 1.02rem;
  color: #3A431A;
  max-width: 680px;
  margin: 0 0 32px;
}

/* Manual table-of-contents outline (hero visual device) */
.outline-list {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.outline-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #fff;
  border-radius: var(--radius);
  padding: 18px 18px;
  box-shadow: 6px 6px 0 rgba(77,91,31,0.16);
}
.outline-no {
  font-family: "Gothic A1", sans-serif;
  font-weight: 900;
  font-size: 1.3rem;
  color: var(--c-accent);
  line-height: 1;
}
.outline-list h3 {
  margin: 0 0 6px;
  font-size: 1rem;
  color: var(--c-primary);
}
.outline-list p {
  margin: 0;
  font-size: 0.86rem;
  color: #4B5527;
}

/* CTA group */
.cta-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 0 0 8px;
}
.cta-group--mid {
  width: 100%;
  background: var(--c-bg);
  padding: 30px 0;
  margin: 0;
}
.cta-group--mid .inner {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.94rem;
  box-shadow: 6px 6px 0 rgba(77,91,31,0.18);
  transition: transform 0.18s ease;
}
.cta--call {
  background: var(--c-primary);
  color: #fff;
}
.cta--sms {
  background: #fff;
  color: var(--c-primary);
  border: 1.5px solid var(--c-primary);
}
.cta:hover { transform: translate(-2px,-2px); }

/* Content blocks — fullbleed bands, thick divider */
.content-block {
  width: 100%;
  padding: 54px 0;
  border-top: 8px solid var(--c-bg);
}
.content-block:nth-of-type(even) { background: var(--c-bg); }
.content-block:nth-of-type(odd) { background: #fff; }

.content-block .eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-second);
  font-weight: 700;
  margin: 0 0 10px;
}
.content-block h2 {
  font-size: 1.5rem;
  color: var(--c-primary);
  margin: 0 0 18px;
  border-left: 6px solid var(--c-accent);
  padding-left: 18px;
}
.content-block p { margin: 0 0 14px; color: #2A2F14; }
.content-block ul { margin: 0 0 14px; padding-left: 20px; }
.content-block li { margin-bottom: 8px; color: #2A2F14; }

/* Table */
table.manual-table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 10px;
  font-size: 0.92rem;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 6px 6px 0 rgba(77,91,31,0.14);
}
table.manual-table th, table.manual-table td {
  border: 1px solid #E3E6C7;
  padding: 12px 14px;
  text-align: left;
}
table.manual-table th {
  background: var(--c-primary);
  color: #fff;
}
table.manual-table tbody tr:nth-child(even) { background: #F5F6E4; }

/* Photo row */
.photo-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 0;
  padding: 30px 40px;
  background: var(--c-primary);
}
.photo-row figure { margin: 0; }
.photo-row img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  display: block;
  border-radius: var(--radius);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.24);
}
.photo-row figcaption {
  font-size: 0.8rem;
  color: #DCE4B4;
  margin-top: 10px;
}

/* Related links */
.related-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 20px 0 24px;
}
.related-links a {
  text-decoration: none;
  background: #fff;
  border: 1px solid #D8DCB0;
  color: var(--c-primary);
  padding: 9px 16px;
  border-radius: var(--radius);
  font-size: 0.88rem;
  box-shadow: 4px 4px 0 rgba(77,91,31,0.12);
}
.related-links a:hover { background: var(--c-bg); }

/* Footer */
.site-footer {
  border-top: 8px solid var(--c-second);
  padding: 40px 0 60px;
  background: var(--c-primary);
  color: #EAEFCF;
}
.footer-inner { max-width: var(--inner); margin: 0 auto; padding: 0 40px; }
.footer-brand {
  font-weight: 700;
  color: #fff;
  margin: 0 0 12px;
}
.footer-biz {
  display: grid;
  grid-template-columns: 100px 1fr;
  row-gap: 6px;
  margin: 0 0 16px;
  font-size: 0.85rem;
  color: #D5DDAB;
}
.footer-biz dt { font-weight: 600; color: #B7C184; }
.footer-biz dd { margin: 0; }
.footer-biz a { color: var(--c-accent); text-decoration: underline; }
.footer-copy { font-size: 0.78rem; color: #A9B589; margin: 0; }

/* Mobile overlay nav */
.mobile-overlay { display: none; }

@media (max-width: 1024px) {
  .index-rail {
    position: static;
    width: 100%;
    height: auto;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
    border-right: none;
    border-bottom: 8px solid var(--c-second);
  }
  .index-nav, .rail-cta { display: none; }
  .main { margin-left: 0; }
  .hamburger-btn {
    display: inline-flex;
    background: transparent;
    border: none;
    color: #fff;
    cursor: pointer;
    padding: 6px;
  }
  .mobile-overlay.open {
    display: flex;
    position: fixed;
    inset: 0;
    background: var(--c-primary);
    z-index: 300;
    flex-direction: column;
    padding: 28px 24px;
    gap: 6px;
  }
  .mobile-overlay a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    padding: 14px 4px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
  }
  .mobile-overlay .close-btn {
    align-self: flex-end;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
    margin-bottom: 12px;
  }
  .outline-list { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .photo-row { grid-template-columns: repeat(2, 1fr); padding: 20px; }
  .footer-biz { grid-template-columns: 90px 1fr; }
  .inner, .footer-inner { padding: 0 22px; }
}

@media (max-width: 480px) {
  .hero { padding: 44px 0 28px; }
  .cta-group, .cta-group--mid .inner { flex-direction: column; }
  .cta { justify-content: center; }
  .photo-row { grid-template-columns: 1fr; }
}

/* Scroll reveal (single animation type for this page) */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}