:root {
  --bg: #FFFFFF;
  --text: #2E2E2E;
  --muted: #6B6B6B;
  --sage: #A6B1A1;
  --sage-soft: #EDEFEC;
  --max: 860px;
}

* { box-sizing: border-box; }

html { font-display: swap; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Pretendard Variable', 'Pretendard', sans-serif;
  font-weight: 300;
  line-height: 1.9;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Pretendard Variable', 'Pretendard', sans-serif;
  font-weight: 300;
  color: var(--text);
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

a { color: var(--text); }

:focus-visible {
  outline: 1px solid var(--sage);
  outline-offset: 3px;
}

.section-inner {
  max-width: var(--max);
  margin-inline: auto;
  padding: 64px 24px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--sage-soft);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(6px);
  z-index: 20;
}

.header-inner {
  max-width: var(--max);
  margin-inline: auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.wordmark {
  font-weight: 300;
  color: var(--text);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
}

.hamburger {
  background: none;
  border: none;
  display: none;
  cursor: pointer;
  padding: 6px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin: 0;
  padding: 0;
}

.main-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 300;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

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

@media (max-width: 720px) {
  .hamburger { display: block; }
  .main-nav {
    display: none;
    width: 100%;
    order: 3;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding-top: 14px;
  }
  .main-nav ul li {
    border-top: 1px solid var(--sage-soft);
  }
  .main-nav ul li a {
    display: block;
    padding: 14px 4px;
  }
  .main-nav.is-open { display: block; }
}

/* Hero — typography-led, no card, no background image */
.hero {
  padding: clamp(64px, 12vw, 128px) 24px;
  text-align: center;
}

.hero-inner {
  max-width: 640px;
  margin-inline: auto;
}

.hero-icon {
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 200;
  margin: 0 0 28px;
  letter-spacing: 0.08em;
}

.thin-rule {
  border: none;
  border-top: 1px solid var(--sage);
  width: 48px;
  margin: 0 auto 28px;
}

.hero-lead {
  margin: 0 0 40px;
  font-size: 1.02rem;
  color: var(--muted);
  font-weight: 300;
}

/* CTA — thin outline, no fill */
.cta {
  display: inline-block;
  text-decoration: none;
  border: 1px solid var(--text);
  color: var(--text);
  background: transparent;
  padding: 14px 34px;
  font-weight: 300;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.cta:hover {
  background: var(--text);
  color: #fff;
}

.cta--alt {
  border-color: var(--sage);
  color: var(--text);
}

.cta--alt:hover {
  background: var(--sage);
  color: #fff;
  border-color: var(--sage);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}

/* Section numbering */
.content-section { border-top: 1px solid var(--sage-soft); }

.section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--sage);
  color: var(--sage);
  font-weight: 300;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.content-section h2 {
  font-size: 1.3rem;
  font-weight: 300;
  margin: 0 0 20px;
  letter-spacing: 0.04em;
}

.content-section p { color: var(--text); }
.content-section p + p { margin-top: 16px; }

/* Table — no fills, hairline rules only */
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
  font-size: 0.92rem;
}

.spec-table th, .spec-table td {
  border-bottom: 1px solid var(--sage-soft);
  padding: 14px 12px;
  text-align: left;
  font-weight: 300;
}

.spec-table thead th {
  color: var(--muted);
  font-weight: 300;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--sage);
}

/* Branch / callout — dividing rules instead of boxes */
.branch-box {
  display: grid;
  gap: 0;
  margin-top: 24px;
}

.branch-item {
  border-top: 1px solid var(--sage-soft);
  padding: 22px 0;
}

.branch-item:last-child { padding-bottom: 0; }

.branch-item h3 {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text);
  margin: 0 0 8px;
  letter-spacing: 0.03em;
}

.branch-item p { margin: 0; color: var(--muted); }

/* Checklist */
.checklist {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 16px;
}

.checklist li {
  padding-left: 26px;
  position: relative;
  color: var(--text);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 1px;
  background: var(--sage);
}

/* FAQ — hairline dividers, no boxed containers */
.faq-list {
  margin-top: 24px;
  display: grid;
  gap: 0;
}

.faq-list details {
  border-top: 1px solid var(--sage-soft);
  padding: 18px 0;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 400;
  color: var(--text);
  letter-spacing: 0.02em;
}

.faq-list p {
  margin: 14px 0 0;
  color: var(--muted);
}

/* Images */
.shot {
  margin: 0 auto;
  max-width: 560px;
  padding: 0 24px;
}

.shot img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  height: auto;
}

.shot figcaption {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 12px;
  text-align: center;
  font-weight: 300;
  letter-spacing: 0.02em;
}

/* CTA block (bottom) — plain, rules only, no fill */
.cta-block {
  border-top: 1px solid var(--sage);
  border-bottom: 1px solid var(--sage);
  text-align: center;
}

.cta-heading {
  font-size: 1.3rem;
  font-weight: 300;
  margin: 0 0 14px;
  letter-spacing: 0.04em;
}

.cta-block > .section-inner > p:not(.cta-heading) {
  color: var(--muted);
  margin: 0 0 32px;
}

/* Related links */
.related-heading {
  font-size: 1.1rem;
  font-weight: 300;
  margin: 0 0 20px;
  letter-spacing: 0.04em;
  text-align: center;
}

.related-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0;
}

.related-list a {
  display: block;
  border-top: 1px solid var(--sage-soft);
  padding: 16px 4px;
  text-decoration: none;
  color: var(--muted);
  font-weight: 300;
  transition: color 0.2s ease;
}

.related-list li:last-child a {
  border-bottom: 1px solid var(--sage-soft);
}

.related-list a:hover { color: var(--text); }

/* Footer */
footer {
  background: var(--sage-soft);
  color: var(--text);
  margin-top: 0;
}

footer address {
  font-style: normal;
  line-height: 1.9;
  font-weight: 300;
}

footer small {
  display: block;
  margin-top: 18px;
  color: var(--muted);
  font-weight: 300;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}