/* =========================================================
   A&P 기계공업 — Precision / Metal · Monochrome
   실물 사진이 주인공. 차콜·실버·코퍼 단일 포인트.
   ========================================================= */
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
:root{
  --black:#141414;
  --char:#1c1d1f;        /* 차콜 */
  --steel:#3a3d42;       /* 스틸 그레이 */
  --silver:#8b9096;      /* 실버 */
  --mist:#c9ccd0;
  --paper:#f4f4f2;       /* 오프화이트 (약간 웜) */
  --paper-pure:#fbfbfa;
  --line:#e0e0dd;
  --line-dark:#2a2c2f;
  --copper:#b06a3f;      /* 유일한 컬러 포인트 */
  --copper-lite:#c98559;
  --ink:#1a1a1a;
  --ink-soft:#5a5e63;
  --wrap:1200px;
  --sans:"Pretendard","Malgun Gothic","맑은 고딕",-apple-system,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Roboto Mono","D2Coding",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
h1,h2,h3,h4,p,li,dd,.sub,.lead{word-break:keep-all;overflow-wrap:anywhere}
.nw{white-space:nowrap}
body{font-family:var(--sans);color:var(--ink);background:var(--paper);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}

/* 산업 라벨 (도면 감성) — 영문 eyebrow 대체 */
.label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--copper);font-weight:500}
.label-dim{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--silver)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(20,20,20,.0);transition:.3s}
.site-header.solid{background:rgba(20,20,20,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-dark)}
/* 서브 페이지(solid로 시작)에서는 로고·메뉴가 항상 선명하게 보이도록 */
.site-header.solid .logo-text b{color:#fff}
.site-header.solid .logo-text span{color:var(--silver)}
.site-header.solid .logo-mark{border:0}
.site-header.solid .nav a{color:#d4d6d9}
.site-header.solid .nav a:hover{color:#fff}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px;max-width:var(--wrap);margin:0 auto;padding:0 28px}
.logo{display:flex;align-items:center;gap:12px}
/* 실제 심볼(화이트 1도 녹아웃 SVG) — 마크업의 'A&P' 텍스트는 숨기고 이미지로 대체 */
.logo-mark{width:80px;height:44px;border:0;display:block;background:url(/assets/images/logo/symbol-white.svg) no-repeat center/contain;font-size:0;color:transparent;overflow:hidden}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text b{font-size:17px;color:#fff;letter-spacing:-.2px}
.logo-text span{font-family:var(--mono);font-size:10px;color:var(--silver);letter-spacing:.15em}
.site-header:not(.solid) .logo-text b{color:#fff}
.nav{display:flex;align-items:center;gap:2px}
.nav a{padding:10px 16px;font-size:15px;font-weight:500;color:#d4d6d9;transition:.18s;position:relative}
.nav a:hover{color:#fff}
.nav a::after{content:"";position:absolute;left:16px;right:16px;bottom:6px;height:1.5px;background:var(--copper);transform:scaleX(0);transition:.2s;transform-origin:left}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.lang{display:flex;gap:4px;margin-left:12px;font-family:var(--mono)}
.lang a{padding:5px 8px;font-size:11px;color:var(--silver);letter-spacing:.05em}
.lang a.on{color:var(--copper)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.2s}

/* ---------- Sub page hero ---------- */
.page-hero{background:var(--black);color:#fff;padding:120px 0 60px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line-dark) 1px,transparent 1px),linear-gradient(90deg,var(--line-dark) 1px,transparent 1px);background-size:60px 60px;opacity:.4;mask-image:linear-gradient(180deg,transparent,#000 60%,transparent)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero .label{margin-bottom:16px;display:block}
.page-hero h1{font-size:42px;letter-spacing:-1px;font-weight:800;line-height:1.1}
.page-hero .sub{margin-top:14px;color:var(--mist);max-width:600px;font-size:16px}
.breadcrumb{margin-top:26px;font-family:var(--mono);font-size:12px;color:var(--silver);letter-spacing:.05em}
.breadcrumb a:hover{color:var(--copper)}
.breadcrumb span{margin:0 8px;opacity:.4}

/* ---------- Sections ---------- */
section{padding:88px 0}
.section-head{margin-bottom:52px;max-width:720px}
.section-head .label{display:block;margin-bottom:16px}
.section-head h2{font-size:32px;letter-spacing:-.7px;font-weight:800;line-height:1.15}
.section-head p{margin-top:14px;color:var(--ink-soft);font-size:16px}

/* 섹션 넘버 (도면식) */
.sec-num{font-family:var(--mono);font-size:13px;color:var(--copper);letter-spacing:.1em}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 26px;font-weight:600;font-size:15px;cursor:pointer;transition:.2s;border:1.5px solid transparent;font-family:var(--sans)}
.btn-primary{background:var(--copper);color:#fff}
.btn-primary:hover{background:var(--copper-lite)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.25)}
.btn-line:hover{border-color:var(--copper);color:var(--copper-lite)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:var(--steel)}
.btn .arr{font-family:var(--mono);transition:.2s}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- Footer ---------- */
.site-footer{background:var(--black);color:#9a9ea3;padding:72px 0 36px;font-size:14px}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid var(--line-dark)}
.footer-brand .logo-mark{margin-bottom:20px}
.footer-brand b{color:#fff;font-size:19px;letter-spacing:-.3px;display:block;margin-bottom:12px}
.footer-brand p{max-width:380px;line-height:1.75;color:#7c8085;font-size:14px}
.footer-info{display:grid;gap:10px;font-family:var(--mono);font-size:12.5px;align-content:start}
.footer-info .row{display:flex;gap:14px}
.footer-info .row b{color:var(--silver);min-width:52px;font-weight:500;letter-spacing:.05em}
.footer-info .row span{color:#b8bcc0}
.footer-bottom{padding-top:26px;font-family:var(--mono);font-size:11.5px;color:#5c6065;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;letter-spacing:.05em}

/* ---------- Utilities ---------- */
.center{text-align:center}
.grid{display:grid;gap:1px;background:var(--line)}
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
[data-reveal].in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .nav{position:fixed;top:76px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--black);padding:8px;transform:translateY(-130%);transition:.28s;border-bottom:1px solid var(--line-dark)}
  .nav.open{transform:translateY(0)}
  .nav a{padding:15px 18px;color:#fff}
  .lang{margin:8px 0 4px 18px}
  .nav-toggle{display:block}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .page-hero h1{font-size:32px}
  .section-head h2{font-size:26px}
}