/* ==========================================================================
   base.css — 리셋 · 타이포 · 레이아웃 · 헤더 · 푸터 · 버튼
   모든 클래스는 sdc- 접두사를 씁니다.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;      /* 한글 어절 단위 줄바꿈 */
  overflow-wrap: break-word;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 .5em; line-height: var(--lh-tight); letter-spacing: -.02em; font-weight: 700; }
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
p  { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; border-radius: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------- 레이아웃 ---------- */
.sdc-container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.sdc-container--slim { max-width: var(--container-slim); }
.sdc-section { padding-block: var(--section); }
.sdc-section--soft { background: var(--bg-soft); }
.sdc-section--deep { background: var(--bg-deep); color: #fff; }
.sdc-section--deep h2, .sdc-section--deep h3 { color: #fff; }
.sdc-skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--navy); color: #fff; padding: 12px 18px; border-radius: 0 0 var(--r-sm) 0;
}
.sdc-skip:focus { left: 0; }

/* ---------- 섹션 머리말 ---------- */
.sdc-eyebrow {
  display: inline-block; margin: 0 0 10px;
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--gold-text);
}
.sdc-lead { font-size: var(--fs-lead); color: var(--ink-soft); max-width: 62ch; }
.sdc-head { max-width: 68ch; margin-bottom: clamp(28px, 4vw, 48px); }

/* ---------- 버튼 ---------- */
.sdc-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border: 1px solid transparent; border-radius: var(--r-pill);
  font: inherit; font-size: var(--fs-sm); font-weight: 700; line-height: 1.2;
  cursor: pointer; text-decoration: none;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease), transform .15s var(--ease);
}
.sdc-btn:hover { text-decoration: none; transform: translateY(-1px); }
.sdc-btn:active { transform: none; }
.sdc-btn--primary { background: var(--navy); color: #fff; }
.sdc-btn--primary:hover { background: var(--navy-800); }
.sdc-btn--gold { background: var(--gold); color: #2A1B00; }
.sdc-btn--gold:hover { background: var(--gold-600); }
.sdc-btn--ghost { background: transparent; color: var(--navy); border-color: var(--line); }
.sdc-btn--ghost:hover { border-color: var(--navy); background: var(--navy-050); }
.sdc-btn--lg { padding: 15px 30px; font-size: var(--fs-body); }
.sdc-btn--block { width: 100%; }
.sdc-btn.is-pending { opacity: .5; pointer-events: none; }

/* ---------- 헤더 ---------- */
.sdc-header {
  position: sticky; top: 0; z-index: var(--z-header);
  background: rgba(255, 255, 255, .92); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.sdc-header__inner { display: flex; align-items: center; gap: 20px; height: var(--header-h); }
.sdc-logo { display: flex; align-items: center; gap: 10px; margin-right: auto; }
.sdc-logo:hover { text-decoration: none; }
.sdc-logo__mark { width: 34px; height: 34px; flex: none; }
.sdc-logo__name { display: block; font-size: 1.0625rem; font-weight: 800; color: var(--navy); letter-spacing: -.02em; }
.sdc-logo__sub { display: block; font-size: .625rem; font-weight: 700; letter-spacing: .18em; color: var(--muted); }

.sdc-nav { display: flex; gap: 4px; }
.sdc-nav__link {
  display: block; padding: 8px 14px; border-radius: var(--r-sm);
  font-size: var(--fs-sm); font-weight: 600; color: var(--ink-soft);
}
.sdc-nav__link:hover { background: var(--navy-050); color: var(--navy); text-decoration: none; }
.sdc-nav__link[aria-current="page"] { color: var(--navy); background: var(--navy-050); }

.sdc-header__cta { display: flex; align-items: center; gap: 10px; }
.sdc-hamburger {
  display: none; width: 42px; height: 42px; padding: 0;
  background: none; border: 1px solid var(--line); border-radius: var(--r-sm); cursor: pointer;
}
.sdc-hamburger span, .sdc-hamburger span::before, .sdc-hamburger span::after {
  display: block; width: 18px; height: 2px; background: var(--navy); border-radius: 2px;
  margin-inline: auto; content: ""; position: relative;
}
.sdc-hamburger span::before { position: absolute; top: -6px; }
.sdc-hamburger span::after  { position: absolute; top: 6px; }

.sdc-drawer {
  display: none; position: fixed; inset: var(--header-h) 0 auto; z-index: var(--z-drawer);
  background: #fff; border-bottom: 1px solid var(--line); box-shadow: var(--sh-lg);
  padding: 12px var(--gutter) 22px;
}
.sdc-drawer.is-open { display: block; }
.sdc-drawer a { display: block; padding: 13px 4px; border-bottom: 1px solid var(--line-soft); font-weight: 600; color: var(--ink); }

@media (max-width: 900px) {
  .sdc-nav, .sdc-header__cta .sdc-btn { display: none; }
  .sdc-hamburger { display: block; }
}

/* ---------- 푸터 ---------- */
.sdc-footer { background: var(--bg-deep); color: #C3CCE2; padding-block: clamp(44px, 6vw, 72px) 28px; font-size: var(--fs-sm); }
.sdc-footer a { color: #E4EAF6; }
.sdc-footer__grid { display: grid; gap: 32px; grid-template-columns: 1.4fr 1fr 1fr; }
.sdc-footer h4 { color: #fff; font-size: var(--fs-sm); margin-bottom: 12px; }
.sdc-footer ul { list-style: none; margin: 0; padding: 0; }
.sdc-footer li { margin-bottom: 7px; }
.sdc-footer__legal {
  margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, .13);
  font-size: var(--fs-xs); color: #93A0BC;
}
@media (max-width: 760px) { .sdc-footer__grid { grid-template-columns: 1fr; } }

/* 아직 채우지 않은 회사정보 — 링크를 죽이고 회색 처리 */
.is-pending { color: var(--muted) !important; cursor: default; text-decoration: none !important; }

/* ---------- 구축중 안내 배너 (정식 오픈 시 이 요소만 삭제) ---------- */
.sdc-buildbar {
  background: var(--gold-100); border-bottom: 1px solid #EEDCB4;
  color: #6B4900; font-size: var(--fs-xs); text-align: center; padding: 9px var(--gutter);
}

/* ---------- 등장 애니메이션 ---------- */
.js .sdc-reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .sdc-reveal.is-in { opacity: 1; transform: none; }