/* ═══════════════════════════════════════════
   EMD 공통 스타일시트 v3
   index / about / contact / capability 공유
═══════════════════════════════════════════ */

:root{
  --charcoal:#141414;
  --charcoal2:#1e1e1e;
  --navy:#0f172a;
  --navy2:#1e293b;
  --accent:#b45309;
  --accent2:#d97706;
  --white:#ffffff;
  --offwhite:#f7f6f3;
  --border:#e4e2dc;
  --text:#0f172a;
  --muted:#64748b;
}

/* ── 리셋 ── */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans KR',sans-serif;background:#fff;color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.wrap{max-width:1200px;margin:0 auto;padding:0 40px}

/* ── 애니메이션 ── */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:translateY(0)}
.reveal-left{opacity:0;transform:translateX(-36px);transition:opacity .6s ease,transform .6s ease}
.reveal-left.visible{opacity:1;transform:translateX(0)}
.reveal-right{opacity:0;transform:translateX(36px);transition:opacity .6s ease,transform .6s ease}
.reveal-right.visible{opacity:1;transform:translateX(0)}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}.d4{transition-delay:.32s}.d5{transition-delay:.4s}

/* ── NAV ── */
.nav{position:fixed;top:0;left:0;right:0;z-index:999;transition:background .3s,box-shadow .3s}
.nav.scrolled{background:rgba(255,255,255,0.97);box-shadow:0 1px 0 var(--border);backdrop-filter:blur(12px)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav-logo{display:flex;align-items:center;gap:12px}
.logo-top{display:block}
.logo-scrolled{display:none}
.nav.scrolled .logo-top{display:none}
.nav.scrolled .logo-scrolled{display:block}
.logo-svg-nav{height:38px;width:auto}
.nav-logo-text{display:flex;flex-direction:column;gap:2px}
.nav-logo-text strong{font-family:'Inter',sans-serif;font-size:14px;font-weight:800;letter-spacing:-0.2px;color:#fff;transition:color .3s}
.nav-logo-text span{font-size:9px;letter-spacing:2.5px;text-transform:uppercase;color:rgba(255,255,255,0.35);transition:color .3s}
.nav.scrolled .nav-logo-text strong{color:var(--navy)}
.nav.scrolled .nav-logo-text span{color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a{font-size:13px;font-weight:600;color:rgba(255,255,255,0.6);transition:color .2s}
.nav.scrolled .nav-links a{color:var(--muted)}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav.scrolled .nav-links a:hover,.nav.scrolled .nav-links a.active{color:var(--navy)}
.nav-cta{padding:9px 18px;background:var(--accent);color:#fff !important;font-size:12px !important;font-weight:700 !important;border-radius:4px;transition:.2s !important;white-space:nowrap}
.nav-cta:hover{background:var(--accent2) !important;transform:translateY(-1px)}

/* ── 로고 SVG 스니펫 (JS 공통) ── */
/* 히어로 위: E·M 흰색, D 파란색, 다이아 골드 */
/* 스크롤 후: E·M 네이비, D 파란색, 다이아 골드 */

/* ── 페이지 히어로 (서브페이지용) ── */
.page-hero{padding:140px 0 72px;background:var(--charcoal);position:relative;overflow:hidden}
.page-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(180,83,9,0.14) 0%,transparent 50%)}
.page-hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,0.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.025) 1px,transparent 1px);background-size:60px 60px}
.page-hero .wrap{position:relative;z-index:1}
.page-tag{display:inline-flex;align-items:center;gap:8px;font-size:10px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--accent2);margin-bottom:14px}
.page-tag::before{content:'';width:18px;height:1.5px;background:var(--accent2)}
.page-title{font-family:'Inter',sans-serif;font-size:clamp(32px,5vw,58px);font-weight:900;letter-spacing:-2px;color:#fff;line-height:1.04;margin-bottom:16px}
.page-title em{font-style:italic;color:var(--accent2)}
.page-desc{font-size:16px;color:rgba(255,255,255,0.48);line-height:1.85;max-width:560px}

/* ── 섹션 공통 ── */
.section{padding:96px 0}
.section-alt{background:var(--offwhite)}
.s-eyebrow{font-size:10px;font-weight:700;letter-spacing:3px;text-transform:uppercase;color:var(--accent);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.s-eyebrow::before{content:'';width:16px;height:1.5px;background:var(--accent)}
.s-title{font-family:'Inter',sans-serif;font-size:clamp(26px,3.5vw,44px);font-weight:900;letter-spacing:-1.5px;color:var(--navy);line-height:1.06;margin-bottom:10px}
.s-desc{font-size:15px;color:var(--muted);line-height:1.85;max-width:500px}

/* ── 버튼 ── */
.btn-accent{padding:14px 30px;background:var(--accent);color:#fff;font-size:14px;font-weight:700;border-radius:4px;transition:.25s;display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.btn-accent:hover{background:var(--accent2);transform:translateY(-2px);box-shadow:0 10px 28px rgba(180,83,9,0.3)}
.btn-ghost{padding:14px 30px;border:1px solid rgba(255,255,255,0.15);color:rgba(255,255,255,0.7);font-size:14px;font-weight:500;border-radius:4px;transition:.25s;white-space:nowrap;display:inline-flex;align-items:center}
.btn-ghost:hover{border-color:rgba(255,255,255,0.4);color:#fff}
.btn-outline{padding:13px 28px;border:1px solid var(--border);color:var(--navy);font-size:14px;font-weight:600;border-radius:4px;transition:.25s;display:inline-flex;align-items:center}
.btn-outline:hover{border-color:var(--accent);color:var(--accent)}

/* ── CTA 배너 ── */
.cta{background:var(--charcoal);padding:96px 0;position:relative;overflow:hidden}
.cta::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(180,83,9,0.14) 0%,transparent 55%)}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:60px}
.cta h2{font-family:'Inter',sans-serif;font-size:clamp(26px,3.5vw,46px);font-weight:900;letter-spacing:-1.5px;color:#fff;line-height:1.08}
.cta h2 em{font-style:italic;color:var(--accent2)}
.cta p{font-size:14px;color:rgba(255,255,255,0.35);margin-top:10px;max-width:380px;line-height:1.8}

/* ── 푸터 ── */
.footer{background:#0a0a0a;padding:60px 0 36px}
.footer-top{display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.06)}
.footer-brand span{display:block;font-size:9px;letter-spacing:2.5px;text-transform:uppercase;color:rgba(255,255,255,0.2);margin-top:6px;margin-bottom:14px}
.footer-brand p{font-size:12px;color:rgba(255,255,255,0.28);line-height:1.9}
.footer-col h5{font-size:9px;font-weight:700;letter-spacing:2.5px;text-transform:uppercase;color:rgba(255,255,255,0.18);margin-bottom:16px}
.footer-col a,.footer-col p{display:block;font-size:12px;color:rgba(255,255,255,0.38);margin-bottom:9px;transition:color .15s}
.footer-col a:hover{color:var(--accent2)}
.footer-bottom{display:flex;justify-content:space-between;padding-top:28px;font-size:10px;color:rgba(255,255,255,0.15)}

/* ── 플로팅 버튼 ── */
.float-btn{position:fixed;bottom:28px;right:28px;z-index:998}
.float-cta{display:flex;align-items:center;gap:9px;padding:12px 20px;background:var(--accent);color:#fff;font-size:13px;font-weight:700;border-radius:4px;box-shadow:0 8px 24px rgba(180,83,9,0.4);transition:.2s;white-space:nowrap}
.float-cta:hover{background:var(--accent2);transform:translateY(-2px);box-shadow:0 12px 32px rgba(180,83,9,0.5)}
.float-cta svg{width:15px;height:15px;flex-shrink:0}

/* ── 공통 반응형 ── */
@media(max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:640px){
  .wrap{padding:0 20px}
  .section{padding:72px 0}
  .page-hero{padding:110px 0 52px}
  .nav-links a:not(.nav-cta){display:none}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .footer-top{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .float-btn{bottom:18px;right:16px}
}