/* =========================================================
   site.css — 레이아웃·컴포넌트 공통 스타일
   색·크기 값은 직접 쓰지 않고 theme.css 토큰만 사용합니다.
   특정 요소만 바꿀 때는 맨 아래 "요소별 개별 조정" 구역을 쓰세요.
   ========================================================= */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  margin: 0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-body); font-weight: var(--fw-body);
  font-size: var(--fs-body); line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-heading); font-weight: var(--fw-heading); line-height: 1.25; margin: 0 0 16px; word-break: keep-all; }
p { margin: 0 0 16px; word-break: keep-all; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .container { padding: 0 24px; } }

/* ---------- 버튼 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: var(--btn-pad-y) var(--btn-pad-x); border-radius: var(--radius-btn);
  font-weight: 600; font-size: var(--fs-body); text-decoration: none;
  border: 2px solid transparent; cursor: pointer; transition: opacity .15s, transform .15s;
}
.btn:hover { opacity: .9; transform: translateY(-1px); }
.btn--primary { background: var(--color-primary); color: var(--color-primary-contrast); }
.btn--ghost { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-group { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 헤더 ---------- */
.header {
  position: sticky; top: 0; z-index: 50; height: var(--header-h);
  background: rgba(255,255,255,.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.header .container { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { font-family: var(--font-heading); font-weight: 800; font-size: 20px; text-decoration: none; color: var(--color-text); display: flex; align-items: center; gap: 8px; }
.logo img { height: 32px; width: auto; }
.nav { display: none; gap: 28px; }
.nav a { text-decoration: none; font-size: var(--fs-small); font-weight: 500; color: var(--color-text); }
.nav a:hover { color: var(--color-primary); }
.header .btn { padding: 10px 18px; font-size: var(--fs-small); }
.lang { font-size: var(--fs-small); color: var(--color-muted); text-decoration: none; }
@media (min-width: 960px) { .nav { display: flex; } }

/* ---------- 섹션 공통 ---------- */
.section { padding: var(--space-section-mobile) 0; }
@media (min-width: 768px) { .section { padding: var(--space-section) 0; } }
.section--alt { background: var(--color-surface); }
.section--dark { background: var(--color-dark); color: var(--color-dark-text); }
.section-head { max-width: 720px; margin-bottom: 40px; }
.eyebrow { display: inline-block; font-size: var(--fs-small); font-weight: 700; letter-spacing: .08em; color: var(--color-primary); text-transform: uppercase; margin-bottom: 8px; }
.section h2 { font-size: var(--fs-h2); }
.lead { color: var(--color-muted); font-size: 17px; }

/* ---------- 히어로 ---------- */
.hero { background: var(--color-dark); color: #fff; padding: 88px 0 96px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(60% 80% at 85% 20%, color-mix(in srgb, var(--color-primary) 45%, transparent), transparent 70%); pointer-events: none; }
.hero .container { position: relative; z-index: 1; }
.hero .eyebrow { color: var(--color-accent); }
.hero h1 { font-size: var(--fs-hero); max-width: 820px; }
.hero .hero-sub { font-size: 18px; color: var(--color-dark-text); max-width: 640px; margin-bottom: 32px; }
.hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 56px; max-width: 760px; }
.hero-stat strong { display: block; font-size: 28px; font-family: var(--font-heading); }
.hero-stat span { font-size: var(--fs-small); color: var(--color-dark-text); opacity: .8; }
@media (min-width: 768px) { .hero-stats { grid-template-columns: repeat(4, 1fr); } }

/* ---------- 2단 (회사소개) ---------- */
.split { display: grid; gap: 40px; align-items: center; }
@media (min-width: 900px) { .split { grid-template-columns: 1fr 1fr; } .split--reverse > :first-child { order: 2; } }
.media-box { aspect-ratio: 4/3; border-radius: var(--radius-card); background: linear-gradient(135deg, var(--color-primary), var(--color-accent)); display: grid; place-items: center; color: #fff; font-size: var(--fs-small); }
.checklist { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checklist li { padding-left: 28px; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }

/* ---------- 카드 그리드 ---------- */
.grid { display: grid; gap: var(--gap-grid); grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid--2, .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--4 { grid-template-columns: repeat(4, 1fr); } }
.card { background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 28px; box-shadow: var(--shadow-card); }
.section--alt .card { border-color: transparent; }
.card h3 { font-size: var(--fs-h3); }
.card p { color: var(--color-muted); font-size: 15px; margin: 0; }
.card-icon { width: 48px; height: 48px; border-radius: 12px; background: color-mix(in srgb, var(--color-primary) 12%, transparent); color: var(--color-primary); display: grid; place-items: center; font-size: 22px; margin-bottom: 18px; }

/* ---------- 인증·실적 ---------- */
.badges { display: flex; flex-wrap: wrap; gap: 12px; }
.badge { padding: 10px 16px; border-radius: 999px; background: var(--color-bg); border: 1px solid var(--color-border); font-size: var(--fs-small); font-weight: 600; }
.logos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.logos > div { height: 72px; border-radius: 12px; border: 1px dashed var(--color-border); display: grid; place-items: center; color: var(--color-muted); font-size: var(--fs-small); text-align: center; padding: 0 8px; }
@media (min-width: 768px) { .logos { grid-template-columns: repeat(4, 1fr); } }

/* ---------- 영상 ---------- */
.video { position: relative; aspect-ratio: 16/9; border-radius: var(--radius-card); overflow: hidden; background: #000; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- CTA 띠 ---------- */
.cta { background: var(--color-primary); color: var(--color-primary-contrast); border-radius: var(--radius-card); padding: 48px 28px; display: flex; flex-direction: column; gap: 20px; align-items: flex-start; }
.cta h2 { font-size: var(--fs-h2); margin: 0; }
.cta .btn--primary { background: #fff; color: var(--color-primary); }
@media (min-width: 768px) { .cta { flex-direction: row; justify-content: space-between; align-items: center; padding: 56px; } }

/* ---------- 문의 ---------- */
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 16px; }
.contact-list li { display: flex; gap: 12px; }
.contact-list b { min-width: 72px; color: var(--color-muted); font-weight: 500; }
.map-box { min-height: 260px; border-radius: var(--radius-card); background: var(--color-surface); display: grid; place-items: center; color: var(--color-muted); text-align: center; padding: 16px; }

/* ---------- 푸터 ---------- */
.footer { background: var(--color-dark); color: var(--color-dark-text); padding: 48px 0; font-size: var(--fs-small); }
.footer p { margin: 0 0 6px; opacity: .85; }
.footer .copy { margin-top: 20px; opacity: .6; }

/* 미확인 정보 표시 */
.tbd { background: #FFF4CC; color: #7A5B00; padding: 0 6px; border-radius: 4px; font-size: .85em; }

/* =========================================================
   === 요소별 개별 조정 ===
   디자인 변경요청서의 B·D 항목은 여기에만 추가합니다.
   형식:  [data-el="요소ID"] { 속성: 값; }   /* DR-번호 */
   모바일 전용: @media (max-width: 768px) { [data-el="..."] { ... } }
   ========================================================= */