/* ============================================================
   HEROS — 디자인 시스템 (공통)
   웜 베이지 + 딥 브라운 + HEROS 레드 액센트 · Pretendard
   ============================================================ */

/* ---------- Fonts ---------- */
@font-face { font-family:"Pretendard"; font-weight:400; font-display:swap;
  src:url("../fonts/Pretendard-Regular.otf") format("opentype"); }
@font-face { font-family:"Pretendard"; font-weight:500; font-display:swap;
  src:url("../fonts/Pretendard-Medium.otf") format("opentype"); }
@font-face { font-family:"Pretendard"; font-weight:600; font-display:swap;
  src:url("../fonts/Pretendard-SemiBold.otf") format("opentype"); }
@font-face { font-family:"Pretendard"; font-weight:700; font-display:swap;
  src:url("../fonts/Pretendard-Bold.otf") format("opentype"); }
@font-face { font-family:"Pretendard"; font-weight:800; font-display:swap;
  src:url("../fonts/Pretendard-ExtraBold.otf") format("opentype"); }

/* ---------- Tokens ---------- */
:root{
  --bg:#F7F3EC; --bg-alt:#FCFAF5; --bg-dark:#261E17; --card:#FFFFFF;
  --text:#2B2118; --text-inv:#F5F2EA; --text-mute:#6B5A47;
  --accent:#8B6F47; --accent-light:#BE9F6B; --divider:#E8E0D2; --highlight:#EFE6D3;
  --brand:#D2342B; --brand-deep:#A8261F;
  --bar:#1F5FAE; --bar-deep:#184E91;   /* 상단 바 블루 */

  --maxw:1200px; --gutter:clamp(20px,5vw,48px);
  --radius:14px; --radius-lg:22px; --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(43,33,24,.06);
  --shadow:0 10px 30px rgba(43,33,24,.10);
  --shadow-lg:0 24px 60px rgba(43,33,24,.16);
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:72px;
  --font:"Pretendard",-apple-system,"Apple SD Gothic Neo","Malgun Gothic",sans-serif;
}

/* ---------- Reset / base ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--bg);color:var(--text);
  font-size:16px;line-height:1.7;font-weight:400;letter-spacing:-.01em;
  text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- Layout ---------- */
.container{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(44px,6vw,84px)}
.section--alt{background:var(--bg-alt)}
.section--dark{background:var(--bg-dark);color:var(--text-inv)}
.section--dark .sec-title,.section--dark h2,.section--dark h3{color:var(--text-inv)}
.section--tight{padding-block:clamp(36px,4.5vw,60px)}
/* 컬러 밴드 (강약 조절) */
.section--blue{background:linear-gradient(135deg,var(--bar),var(--bar-deep));color:#fff;position:relative;overflow:hidden}
.section--red{background:linear-gradient(135deg,#D84436,var(--brand-deep));color:#fff;position:relative;overflow:hidden}
.section--blue::after,.section--red::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.4;
  background:radial-gradient(circle at 88% 10%,rgba(255,255,255,.18),transparent 45%)}
.section--blue .container,.section--red .container{position:relative;z-index:1}
.section--blue h2,.section--blue h3,.section--blue .sec-title,.section--red h2,.section--red h3,.section--red .sec-title{color:#fff}
.section--blue .kicker,.section--red .kicker{color:rgba(255,255,255,.88)}
.section--blue .sec-desc,.section--red .sec-desc{color:rgba(255,255,255,.85)}

/* ---------- Typography ---------- */
h1,h2,h3,h4{line-height:1.32;font-weight:800;letter-spacing:-.025em;color:var(--text)}
.kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.28em;
  text-transform:uppercase;color:var(--bar)}
.section--dark .kicker{color:#8FB7E6}
.sec-head{max-width:680px;margin-bottom:clamp(28px,4vw,44px)}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-title{font-size:clamp(28px,4.2vw,44px);margin-top:12px}
.sec-desc{margin-top:16px;color:var(--text-mute);font-size:clamp(15px,1.6vw,18px)}
.section--dark .sec-desc{color:rgba(245,242,234,.78)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;justify-content:center;
  min-height:48px;padding:0 26px;border-radius:var(--radius-pill);
  font-weight:600;font-size:15px;letter-spacing:-.01em;
  transition:transform .2s var(--ease),background .2s var(--ease),box-shadow .2s var(--ease);
  white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(210,52,43,.28)}
.btn--primary:hover{background:var(--brand-deep);transform:translateY(-2px)}
.btn--dark{background:var(--text);color:var(--text-inv)}
.btn--dark:hover{background:#1c150f;transform:translateY(-2px)}
.btn--ghost{background:transparent;border:1.5px solid var(--divider);color:var(--text)}
.btn--ghost:hover{border-color:var(--accent);background:rgba(139,111,71,.06)}
.btn--on-dark{background:rgba(255,255,255,.1);color:#fff;border:1.5px solid rgba(255,255,255,.28)}
.btn--on-dark:hover{background:rgba(255,255,255,.18)}
.btn--lg{min-height:56px;padding:0 34px;font-size:16px}
.btn--block{display:flex;width:100%}

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header{position:sticky;top:0;z-index:100;background:var(--bar);
  transition:background .3s var(--ease),box-shadow .25s,backdrop-filter .3s;color:#fff}
.site-header.is-scrolled{background:var(--bar);box-shadow:0 6px 24px rgba(24,58,110,.22)}
/* 홈: 히어로 위에서는 투명 → 스크롤 시 파랑 */
body[data-page="home"] .site-header:not(.is-scrolled){background:transparent;box-shadow:none}
body[data-page="home"] .site-header:not(.is-scrolled)::before{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,25,45,.42),transparent);pointer-events:none}
.nav{display:flex;align-items:center;gap:28px;height:var(--header-h);position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{height:48px;width:auto;display:block;transition:height .25s var(--ease)}
.site-header.is-scrolled .brand-logo{height:42px}
.brand-logo--footer{height:60px}
/* 로고 교체: 파란 바에선 흰색, 홈 상단(히어로 위)에선 컬러 */
.brand-logo--white{display:block}
.brand-logo--color{display:none}
body[data-page="home"] .site-header:not(.is-scrolled) .brand-logo--white{display:none}
body[data-page="home"] .site-header:not(.is-scrolled) .brand-logo--color{display:block}

.nav-menu{display:flex;align-items:center;gap:4px;margin-inline-start:8px}
.nav-menu>li{position:relative}
.nav-link{display:inline-flex;align-items:center;gap:5px;height:var(--header-h);
  padding-inline:14px;font-weight:600;font-size:15.5px;color:rgba(255,255,255,.92);
  position:relative;transition:color .2s}
.nav-link[aria-current="page"]{color:#fff}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  background:#fff;border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s var(--ease)}
.nav-link:hover{color:#fff}
.nav-item:hover .nav-link::after,.nav-link[aria-current="page"]::after{transform:scaleX(1)}
.nav-link .chev{width:14px;height:14px;transition:transform .25s}
.nav-item:hover .nav-link .chev{transform:rotate(180deg)}

/* mega menu */
.mega{position:absolute;top:calc(var(--header-h) - 8px);left:50%;translate:-50% 0;
  min-width:560px;background:var(--card);border:1px solid var(--divider);
  border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:repeat(2,1fr);gap:6px;
  opacity:0;visibility:hidden;translate:-50% 8px;transition:.22s var(--ease);z-index:120}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;translate:-50% 0}
.mega-card{display:flex;gap:14px;align-items:center;padding:12px;border-radius:var(--radius);
  transition:background .18s}
.mega-card:hover{background:var(--highlight)}
.mega-card .thumb{width:64px;height:64px;border-radius:12px;background:var(--bg);
  display:grid;place-items:center;overflow:hidden;flex:none;border:1px solid var(--divider)}
.mega-card .thumb img{width:100%;height:100%;object-fit:contain;padding:6px}
.mega-card b{display:block;font-size:15px;font-weight:700}
.mega-card span{font-size:13px;color:var(--text-mute)}

.nav-actions{margin-inline-start:auto;display:flex;align-items:center;gap:10px}
.icon-btn{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;
  color:#fff;transition:background .18s}
.icon-btn:hover{background:rgba(255,255,255,.16)}
.icon-btn svg{width:22px;height:22px}
.nav-cta-secondary{font-weight:600;font-size:14.5px;padding:10px 16px;border-radius:var(--radius-pill);
  color:#fff;border:1.5px solid rgba(255,255,255,.55);transition:.18s}
.nav-cta-secondary:hover{border-color:#fff;background:rgba(255,255,255,.14)}

.nav-toggle{display:none}

/* mobile drawer */
/* 모바일 메뉴 오버레이: 닫힌 드로어가 화면 밖으로 나가도 여기서 클리핑 → 문서 가로 넘침 방지 (sticky 영향 없음) */
.nav-overlay{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:140}
.drawer-backdrop{position:absolute;inset:0;background:rgba(38,30,23,.5);z-index:1;pointer-events:auto;
  opacity:0;visibility:hidden;transition:.25s}
.drawer-backdrop.open{opacity:1;visibility:visible}
.drawer{position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);z-index:2;pointer-events:auto;
  background:var(--bg);box-shadow:var(--shadow-lg);transform:translateX(100%);
  transition:transform .3s var(--ease);display:flex;flex-direction:column;overflow-y:auto}
.drawer.open{transform:translateX(0)}
.drawer .icon-btn{color:var(--text)}
.drawer .icon-btn:hover{background:rgba(139,111,71,.1)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;
  padding:18px var(--gutter);border-bottom:1px solid var(--divider)}
.drawer-nav{padding:8px var(--gutter) 24px}
.drawer-nav a.d-link{display:block;padding:15px 4px;font-size:18px;font-weight:600;
  border-bottom:1px solid var(--divider)}
.drawer details>summary{display:flex;align-items:center;justify-content:space-between;
  padding:15px 4px;font-size:18px;font-weight:600;border-bottom:1px solid var(--divider);
  cursor:pointer;list-style:none}
.drawer details>summary::-webkit-details-marker{display:none}
.drawer details>summary .chev{width:18px;height:18px;transition:transform .2s}
.drawer details[open]>summary .chev{transform:rotate(180deg)}
.drawer details .sub a{display:block;padding:11px 4px 11px 16px;color:var(--text-mute);
  font-size:16px;font-weight:500}
.drawer-foot{margin-top:auto;padding:20px var(--gutter) calc(20px + env(safe-area-inset-bottom));
  display:grid;gap:10px;background:var(--bg-alt);border-top:1px solid var(--divider)}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.78);
  padding-block:clamp(48px,7vw,80px) 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;max-width:34ch}
.footer-col h4{font-size:13px;font-weight:700;color:#fff;letter-spacing:.04em;margin-bottom:16px;text-transform:uppercase}
.footer-col a{display:block;font-size:14.5px;padding:6px 0;color:rgba(245,242,234,.72);transition:color .15s}
.footer-col a:hover{color:#fff}
.footer-col .foot-line{font-size:13.5px;color:rgba(245,242,234,.6);line-height:1.7;margin:0 0 12px}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(245,242,234,.12);
  display:flex;flex-wrap:wrap;gap:14px 32px;justify-content:space-between;
  font-size:12.5px;color:rgba(245,242,234,.5);line-height:1.9}
.footer-bottom .biz{max-width:72ch}
.footer-bottom .biz b{color:rgba(245,242,234,.8);font-weight:700;letter-spacing:.04em;margin-right:4px}
.footer-bottom .foot-meta{text-align:right}
.footer-bottom .foot-meta a{color:rgba(245,242,234,.72)}
.footer-bottom .foot-meta a:hover{color:#fff;text-decoration:underline}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-d="1"]{transition-delay:.08s}
.reveal[data-d="2"]{transition-delay:.16s}
.reveal[data-d="3"]{transition-delay:.24s}
.reveal[data-d="4"]{transition-delay:.32s}

/* ---------- helpers ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:8px;top:-60px;z-index:300;background:var(--brand);color:#fff;
  padding:10px 16px;border-radius:8px;transition:top .2s}
.skip-link:focus{top:8px}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ============================================================
   RESPONSIVE — header
   ============================================================ */
@media (max-width:1024px){
  .nav-menu,.nav-cta-secondary,.nav-actions .nav-cta{display:none}
  .nav-toggle{display:grid}
}
@media (max-width:768px){
  :root{--header-h:64px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:480px){
  .footer-grid{grid-template-columns:1fr}
}