/* ========================================================================
 * Washcube · Shared design system (A안 다크 시네마틱)
 * ======================================================================== */

:root{
  --bg:#050912;
  --bg-2:#0b1220;
  --bg-3:#0d1729;
  --card:rgba(255,255,255,.035);
  --card-hi:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.09);
  --border-hi:rgba(255,255,255,.15);
  --text:#fff;
  --text-mid:rgba(255,255,255,.72);
  --text-low:rgba(255,255,255,.5);
  --text-lower:rgba(255,255,255,.35);
  --brand:#1e4fd6;
  --brand-dark:#0b2e8a;
  --brand-2:#7aa6ff;
  --accent:#ff7a1a;
  --accent-2:#ffb37a;
  --good:#1f9d6a;
  --danger:#ff5a5f;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Pretendard Variable","Pretendard",-apple-system,system-ui,sans-serif;
  color:var(--text); background:var(--bg);
  -webkit-font-smoothing:antialiased; line-height:1.6;
  font-feature-settings:"ss01","ss02";
  overflow-x:hidden;
}
.num{font-family:"Inter",ui-monospace,monospace;font-feature-settings:"tnum"}
a{color:inherit; text-decoration:none}
button{font-family:inherit}
img{max-width:100%; display:block}

/* ============ NAV ============ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:16px max(20px, 2.5vw); gap:24px;
  background:rgba(5,9,18,.7); backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:padding .3s ease, background .3s ease;
}
.nav.scrolled{padding:10px max(20px, 2.5vw); background:rgba(5,9,18,.9)}
.nav > *{flex-shrink:0}
.nav-links{flex-shrink:1; min-width:0; overflow:hidden}
.brand{display:flex; align-items:center; gap:10px; font-weight:900; letter-spacing:-.01em; font-size:18px}
.brand .m{
  width:32px; height:32px; border-radius:8px;
  background:linear-gradient(135deg,#1e4fd6,#0b2e8a);
  display:grid; place-items:center; font-size:14px; font-weight:900; color:#fff;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.15);
}
.brand small{font-size:11px; color:var(--text-lower); font-weight:500; margin-left:8px; letter-spacing:.06em; text-transform:uppercase}
.nav-links ul{list-style:none; display:flex; gap:2px; margin:0; padding:0}
.nav-links a{
  color:var(--text-mid); font-size:13.5px; font-weight:500;
  padding:8px 14px; border-radius:8px; transition:all .2s;
  white-space:nowrap; display:inline-block;
}
.nav-links a:hover{color:var(--text); background:rgba(255,255,255,.06)}
.nav-links a.active{color:#fff; background:rgba(30,79,214,.15); font-weight:600}
.nav-cta{display:flex; align-items:center; gap:10px; flex-shrink:0}
.call-nav{
  display:inline-flex; align-items:center; gap:8px; font-size:13px;
  color:var(--text); font-weight:600; white-space:nowrap;
  padding:8px 12px; border-radius:8px;
}
.call-nav b{font-family:"Inter"; font-weight:800; color:var(--accent)}
.btn-nav{
  background:var(--accent); color:#fff; border:none; padding:11px 18px;
  border-radius:10px; font-weight:700; font-size:13px; cursor:pointer;
  box-shadow:0 8px 20px -6px rgba(255,122,26,.5);
  transition:transform .2s; white-space:nowrap; flex-shrink:0;
  text-decoration:none; display:inline-block;
}
.btn-nav:hover{transform:translateY(-1px)}

/* Mobile menu toggle */
.nav-mobile-toggle{
  display:none;
  background:rgba(255,255,255,.08);
  border:1px solid var(--border-hi);
  width:44px; height:44px; border-radius:10px; color:#fff;
  cursor:pointer; align-items:center; justify-content:center; padding:0;
  transition:background .2s ease;
  flex-shrink:0;
}
.nav-mobile-toggle:hover, .nav-mobile-toggle:active{background:rgba(255,255,255,.15)}
.nav-mobile-toggle svg{width:22px; height:22px; stroke:#fff}

/* Mobile menu drawer */
.mobile-menu{
  position:fixed; top:0; right:-100%; width:min(85%, 380px); height:100vh;
  z-index:100; background:var(--bg-2);
  padding:24px; border-left:1px solid var(--border);
  transition:right .35s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
  visibility:hidden;
}
.mobile-menu.open{right:0; visibility:visible}
.mobile-menu-overlay{
  position:fixed; inset:0; z-index:99;
  background:rgba(0,0,0,.6); opacity:0; pointer-events:none;
  transition:opacity .3s ease;
}
.mobile-menu-overlay.open{opacity:1; pointer-events:auto}
.mm-head{display:flex; justify-content:space-between; align-items:center; margin-bottom:32px}
.mm-close{
  background:transparent; border:1px solid var(--border-hi);
  width:36px; height:36px; border-radius:10px; color:#fff; cursor:pointer;
  display:grid; place-items:center; font-size:18px;
}
.mm-links{list-style:none; padding:0; margin:0 0 32px}
.mm-links li a{
  display:block; padding:14px 0; font-size:16px; font-weight:600;
  color:var(--text); border-bottom:1px solid var(--border);
}
.mm-links li a.active{color:var(--accent)}
.mm-cta{display:flex; flex-direction:column; gap:10px}
.mm-cta a{padding:14px; border-radius:12px; font-weight:700; text-align:center; font-size:14px}
.mm-cta a.primary{background:var(--accent); color:#fff}
.mm-cta a.ghost{background:rgba(255,255,255,.05); color:#fff; border:1px solid var(--border-hi)}

/* ============ HERO SECTION HEADER (for sub-pages) ============ */
.page-hero{
  position:relative; padding:160px max(28px, 5vw) 80px;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.page-hero .bg-orbs{position:absolute; inset:0; overflow:hidden; pointer-events:none; z-index:0}
.page-hero .bg-orbs::before{
  content:""; position:absolute; width:600px; height:600px; top:-200px; right:-100px;
  border-radius:50%; filter:blur(80px);
  background:radial-gradient(circle, rgba(30,79,214,.25), transparent 70%);
}
.page-hero .bg-orbs::after{
  content:""; position:absolute; width:400px; height:400px; bottom:-100px; left:-50px;
  border-radius:50%; filter:blur(80px);
  background:radial-gradient(circle, rgba(255,122,26,.12), transparent 70%);
}
.page-hero-inner{position:relative; z-index:1; max-width:1320px; margin:0 auto}
.page-hero .breadcrumb{
  display:flex; align-items:center; gap:8px;
  font-size:12px; color:var(--text-lower); font-weight:500;
  margin-bottom:20px;
}
.page-hero .breadcrumb a{color:var(--text-mid); transition:color .2s}
.page-hero .breadcrumb a:hover{color:#fff}
.page-hero .breadcrumb .sep{color:var(--text-lower)}
.page-hero-eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  padding:7px 14px; border-radius:999px;
  background:rgba(30,79,214,.12); border:1px solid rgba(30,79,214,.3);
  color:#9ec1ff; font-size:12px; font-weight:600; letter-spacing:.04em;
  margin-bottom:20px;
}
.page-hero-eyebrow::before{
  content:""; width:6px; height:6px; border-radius:50%;
  background:#7aa6ff; box-shadow:0 0 0 3px rgba(122,166,255,.2);
}
h1.page-hero-title{
  font-size:clamp(36px, 5vw, 64px); line-height:1.05; letter-spacing:-.03em;
  font-weight:800; margin:0 0 20px; text-wrap:balance; max-width:900px;
}
h1.page-hero-title .grad{
  background:linear-gradient(120deg,#7aa6ff 0%, #fff 50%, #ffb37a 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
h1.page-hero-title .accent{color:var(--accent)}
.page-hero-sub{
  font-size:18px; color:var(--text-mid); max-width:640px; margin:0;
  line-height:1.65; text-wrap:pretty;
}
.page-hero-sub b{color:#fff}
.page-hero-meta{
  display:flex; gap:32px; margin-top:32px; flex-wrap:wrap;
}
.page-hero-meta .m-item{display:flex; flex-direction:column; gap:4px}
.page-hero-meta .m-item .l{font-size:11px; color:var(--text-lower); letter-spacing:.08em; text-transform:uppercase; font-weight:700}
.page-hero-meta .m-item .v{font-family:"Inter"; font-size:22px; font-weight:800; letter-spacing:-.02em}
.page-hero-meta .m-item .v small{font-size:13px; color:var(--text-low); font-weight:600; margin-left:3px}

/* ============ SECTIONS ============ */
section{position:relative}
.section{padding:100px max(28px, 5vw)}
.section-alt{background:var(--bg-3)}
.container{max-width:1320px; margin:0 auto}

.sec-head{margin-bottom:60px; max-width:720px}
.sec-head.center{margin-left:auto; margin-right:auto; text-align:center}
.sec-head.center .sec-tag{justify-content:center}
.sec-tag{
  display:inline-flex; align-items:center; gap:8px;
  font-size:12px; font-weight:700; letter-spacing:.08em; text-transform:uppercase;
  color:var(--brand-2); margin-bottom:16px;
}
.sec-tag::before{content:""; width:22px; height:1px; background:var(--brand-2)}
h2.sec-title{
  font-size:clamp(30px, 3.6vw, 48px); line-height:1.1; letter-spacing:-.03em;
  font-weight:800; margin:0 0 16px; text-wrap:balance;
}
h2.sec-title .accent{color:var(--accent)}
h2.sec-title .grad{
  background:linear-gradient(120deg,#7aa6ff 0%, #fff 50%, #ffb37a 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.sec-desc{font-size:17px; color:var(--text-mid); margin:0; text-wrap:pretty}

/* ============ BUTTONS ============ */
.btn-primary{
  background:var(--accent); color:#fff; border:none;
  padding:16px 26px; border-radius:12px; font-weight:700; font-size:15px;
  cursor:pointer; display:inline-flex; align-items:center; gap:10px;
  box-shadow:0 12px 30px -8px rgba(255,122,26,.5);
  transition:transform .2s; text-decoration:none;
}
.btn-primary:hover{transform:translateY(-2px)}
.btn-primary .arrow{display:inline-block; transition:transform .2s}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{
  background:transparent; color:#fff; border:1px solid var(--border-hi);
  padding:16px 22px; border-radius:12px; font-weight:600; font-size:14px;
  cursor:pointer; display:inline-flex; align-items:center; gap:8px;
  transition:all .2s; text-decoration:none;
}
.btn-ghost:hover{background:rgba(255,255,255,.05); border-color:rgba(255,255,255,.35)}
.btn-ghost .play{
  width:22px; height:22px; border-radius:50%; background:rgba(255,255,255,.1);
  display:grid; place-items:center; font-size:9px;
}

/* ============ CARDS ============ */
.card{
  background:var(--card); border:1px solid var(--border);
  border-radius:20px; padding:32px; position:relative;
  transition:transform .4s ease, border-color .4s ease, background .4s ease;
}
.card:hover{transform:translateY(-4px); border-color:var(--border-hi); background:var(--card-hi)}

/* ============ FOOTER ============ */
footer{
  padding:60px max(28px, 5vw) 40px;
  border-top:1px solid var(--border); background:var(--bg-2);
}
.foot-grid{
  display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px;
  max-width:1320px; margin:0 auto;
}
.foot-brand{max-width:320px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{font-size:13px; color:var(--text-low); line-height:1.6; margin:0}
.foot-col h5{
  font-size:11px; letter-spacing:.08em; text-transform:uppercase;
  color:var(--text-lower); font-weight:700; margin:0 0 16px;
}
.foot-col ul{list-style:none; padding:0; margin:0}
.foot-col ul li{padding:6px 0}
.foot-col ul li a{font-size:14px; color:var(--text-mid); transition:color .2s}
.foot-col ul li a:hover{color:#fff}
.foot-bottom{
  max-width:1320px; margin:40px auto 0; padding-top:24px;
  border-top:1px solid var(--border);
  display:flex; justify-content:space-between; gap:16px;
  font-size:12px; color:var(--text-lower); flex-wrap:wrap;
}

/* ============ MOBILE STICKY CTA ============ */
.mobile-cta{
  display:none;
  position:fixed; bottom:0; left:0; right:0; z-index:40;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(5,9,18,.95); backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  gap:8px;
}
.mobile-cta a, .mobile-cta button{
  flex:1; padding:14px; border-radius:10px; font-weight:700; font-size:14px;
  border:none; cursor:pointer; text-align:center; text-decoration:none;
  display:inline-block;
}
.mobile-cta .m-call{background:rgba(255,255,255,.08); color:#fff}
.mobile-cta .m-consult{background:var(--accent); color:#fff}

/* ============ INLINE CTA BANNER ============ */
.cta-banner{
  padding:80px max(28px, 5vw);
  background:linear-gradient(135deg, #0b2e8a, #1e4fd6);
  position:relative; overflow:hidden;
}
.cta-banner::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background:
    radial-gradient(600px 300px at 90% 100%, rgba(255,122,26,.3), transparent 60%),
    radial-gradient(400px 200px at 10% 0%, rgba(255,255,255,.08), transparent 60%);
}
.cta-banner-inner{
  position:relative; z-index:1;
  max-width:1320px; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between; gap:32px;
  flex-wrap:wrap;
}
.cta-banner h3{
  font-size:clamp(24px, 2.6vw, 36px); font-weight:800; letter-spacing:-.02em;
  margin:0 0 8px; line-height:1.15;
}
.cta-banner p{margin:0; color:rgba(255,255,255,.85); font-size:15px}
.cta-banner-actions{display:flex; gap:10px; flex-wrap:wrap}
.cta-banner .btn-primary{
  background:var(--accent);
  box-shadow:0 12px 30px -8px rgba(0,0,0,.35);
}
.cta-banner .btn-outline{
  background:rgba(255,255,255,.08); color:#fff; border:1px solid rgba(255,255,255,.25);
  padding:16px 22px; border-radius:12px; font-weight:600; font-size:14px;
  text-decoration:none; display:inline-flex; align-items:center; gap:8px;
}
.cta-banner .btn-outline:hover{background:rgba(255,255,255,.15)}

/* ============ REVEAL ============ */
.reveal{opacity:0; transform:translateY(20px); transition:opacity .8s ease, transform .8s ease}
.reveal.in{opacity:1; transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}

/* ============ RESPONSIVE ============ */
@media (max-width: 1180px){
  .nav-links{display:none}
  .nav-mobile-toggle{display:inline-flex}
}
@media (max-width: 640px){
  /* Simplify nav CTA on mobile: hide desktop CTA button, only show mobile hamburger */
  .nav-cta .btn-nav{display:none}
  .nav-mobile-toggle{width:42px; height:42px}
}
@media (max-width: 1024px){
  .foot-grid{grid-template-columns:1fr 1fr; gap:32px}
}
@media (max-width: 640px){
  .nav{padding:10px 14px}
  .call-nav{display:none}
  .section{padding:70px 20px}
  .page-hero{padding:130px 20px 60px}
  h1.page-hero-title{font-size:36px}
  h2.sec-title{font-size:30px}
  .foot-grid{grid-template-columns:1fr}
  .mobile-cta{display:flex}
  body{padding-bottom:70px}
  .cta-banner-inner{flex-direction:column; align-items:flex-start}
}