:root{
  --bg:#070b14;
  --panel:rgba(255,255,255,.06);
  --panel2:rgba(255,255,255,.10);
  --text:#eaf0ff;
  --muted:rgba(234,240,255,.72);
  --line:rgba(255,255,255,.14);
  --shadow: 0 18px 60px rgba(0,0,0,.45);
  --radius:18px;

  --a:#7c3aed;
  --b:#06b6d4;
  --c:#22c55e;
}

[data-theme="light"]{
  --bg:#f6f8ff;
  --panel:rgba(15,23,42,.06);
  --panel2:rgba(15,23,42,.08);
  --text:#0b1220;
  --muted:rgba(11,18,32,.72);
  --line:rgba(11,18,32,.12);
  --shadow: 0 18px 60px rgba(2,6,23,.18);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Apple SD Gothic Neo","Noto Sans KR","Malgun Gothic", Arial, sans-serif;
  background:
    radial-gradient(900px 600px at 20% 10%, rgba(124,58,237,.24), transparent 60%),
    radial-gradient(900px 600px at 80% 30%, rgba(6,182,212,.20), transparent 60%),
    radial-gradient(900px 600px at 55% 90%, rgba(34,197,94,.12), transparent 60%),
    var(--bg);
  color:var(--text);
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:24px}
.wrap.tight{max-width:920px}

/* ================= NAV ================= */
.nav{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(0,0,0,.45), rgba(0,0,0,0));
  border-bottom: 1px solid rgba(255,255,255,.06);
}
[data-theme="light"] .nav{
  background: linear-gradient(to bottom, rgba(255,255,255,.72), rgba(255,255,255,0));
  border-bottom: 1px solid rgba(11,18,32,.08);
}
.nav .inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:16px;
  max-width:1120px; margin:0 auto; padding:14px 24px;
}

/* brand */
.brand{display:flex; align-items:center; gap:12px; font-weight:900; letter-spacing:.2px}
.brandText{display:flex; flex-direction:column; line-height:1.1}
.brandTitle{font-weight:950}
.brandSub{font-size:12px;color:var(--muted);font-weight:850;margin-top:2px}
.logo{
  width:38px;height:38px;border-radius:12px;
  background: conic-gradient(from 210deg, var(--a), var(--b), var(--c), var(--a));
  box-shadow: 0 12px 35px rgba(0,0,0,.35);
  position:relative;
  flex:0 0 auto;
}
.logo:after{
  content:"";
  position:absolute; inset:2px;
  background: rgba(7,11,20,.78);
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,.16);
}
[data-theme="light"] .logo:after{
  background: rgba(246,248,255,.82);
  border: 1px solid rgba(11,18,32,.12);
}

/* center menu */
.menu{
  display:flex; align-items:center; gap:14px;
  flex-wrap:nowrap;
}
.menu a{
  padding:10px 12px;border-radius:12px;
  color:var(--muted);font-weight:900;border:1px solid transparent;
  white-space:nowrap;
}
.menu a:hover{color:var(--text);background:var(--panel);border-color:var(--line)}
.menu a.active{color:var(--text);background:var(--panel2);border-color:var(--line)}

/* right group */
.navRight{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

/* icon button (theme + hamburger + close) */
.iconBtn{
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  display:inline-flex; align-items:center; justify-content:center;
  cursor:pointer;
  font-size:18px;
  font-weight:900;
}
.iconBtn:hover{transform: translateY(-1px)}
.iconBtn:active{transform: translateY(0)}

/* CTA button (프로젝트 문의) */
.ctaBtn{
  display:inline-flex; align-items:center; justify-content:center;
  height:44px;
  padding:0 16px;
  border-radius:14px;
  font-weight:950;
  color:#fff;
  background: linear-gradient(135deg, rgba(124,58,237,.95), rgba(6,182,212,.88));
  border:1px solid rgba(255,255,255,.14);
  box-shadow: 0 10px 30px rgba(0,0,0,.18);
  white-space:nowrap;
}
.ctaBtn:hover{transform: translateY(-1px)}
.ctaBtn:active{transform: translateY(0)}

/* hamburger visible only on mobile */
.hamburger{display:none}
@media (max-width: 920px){
  .menu{display:none}
  .hamburger{display:inline-flex}
}

/* ================= CARD / TYPO ================= */
.card{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
  position:relative;
}
.pad{padding:22px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  padding:8px 12px;border-radius:999px;border:1px solid var(--line);
  color:var(--muted);background:rgba(255,255,255,.03);
  font-weight:950;font-size:12px;letter-spacing:.4px;text-transform:uppercase;
}
.h1{font-size:clamp(34px,4.3vw,56px);letter-spacing:-1.2px;margin:14px 0 10px;line-height:1.05;font-weight:950}
.sub{color:var(--muted);font-size:16px;line-height:1.7;margin:0 0 18px;max-width:66ch}

.section{padding: 10px 0}
.actions{display:flex;gap:10px;flex-wrap:wrap}

/* common buttons */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap:10px;
  padding:11px 14px;
  border-radius: 14px;
  font-weight:950;
  border:1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  cursor:pointer;
}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0px)}
.btn.primary{
  border: 1px solid rgba(255,255,255,.14);
  background: linear-gradient(135deg, rgba(124,58,237,.95), rgba(6,182,212,.88));
  color: white;
}

/* page head */
.pagehead{
  display:flex; align-items:flex-end; justify-content:space-between; gap:12px; flex-wrap:wrap;
  margin: 22px 0 12px;
}
.pagehead h2, .pagehead h1{margin:0;font-size:26px;letter-spacing:-.4px}
.pagehead p{margin:0;color:var(--muted);font-weight:900}

/* lists */
.list{display:flex;flex-direction:column;gap:10px;margin:0;padding:0;list-style:none}
.list li{
  padding:12px 12px;border-radius:16px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);color:var(--muted);font-weight:850;line-height:1.6;
}
.list li b{color:var(--text)}

/* services cards grid */
.cards{
  display:grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap:16px;
  align-items:stretch;
}
@media (max-width: 920px){
  .cards{grid-template-columns:1fr;}
}

.icon{
  width:40px;height:40px;border-radius:14px;display:grid;place-items:center;
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  margin-bottom:10px;font-size:18px;
}
.svc h3{margin:0 0 8px;font-size:16px}
.svc p{margin:0;color:var(--muted);line-height:1.65;font-weight:800}

/* footer */
.foot{
  padding: 26px 0 34px;
  color: var(--muted);
  font-weight:900;
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 16px;
  text-align:center;
}
[data-theme="light"] .foot{border-top: 1px solid rgba(11,18,32,.10)}

/* ================= MOBILE DRAWER ================= */
.drawerOverlay{
  position:fixed; inset:0;
  background: rgba(0,0,0,.55);
  backdrop-filter: blur(6px);
  opacity:0; pointer-events:none;
  transition: opacity .18s ease;
  z-index: 80;
}
.drawer{
  position:fixed; top:0; right:0;
  height:100vh; width:min(86vw, 360px);
  background: rgba(10,14,28,.92);
  border-left:1px solid rgba(255,255,255,.10);
  box-shadow: 0 30px 120px rgba(0,0,0,.55);
  transform: translateX(100%);
  transition: transform .22s ease;
  z-index: 90;
  padding: 16px;
}
[data-theme="light"] .drawer{
  background: rgba(246,248,255,.92);
  border-left:1px solid rgba(11,18,32,.12);
}
.drawerHeader{
  display:flex; align-items:center; justify-content:space-between; gap:10px;
  padding: 8px 6px 14px;
  border-bottom: 1px solid var(--line);
}
.drawerNav{
  display:flex; flex-direction:column; gap:8px;
  padding: 14px 6px;
}
.drawerNav a{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-weight:950;
}
.drawerNav a:hover{color: var(--text); background: var(--panel)}
.drawerNav a.active{color: var(--text); background: var(--panel2)}
.drawerActions{
  display:flex; gap:10px; flex-wrap:wrap;
  padding: 0 6px;
}
.drawerOpen .drawerOverlay{opacity:1; pointer-events:auto;}
.drawerOpen .drawer{transform: translateX(0);}

/* ================= CONTACT FORM (shared) ================= */
.contactGrid{
  display:grid;
  grid-template-columns: 1fr 1.2fr;
  gap:16px;
  align-items:start;
}
@media (max-width: 920px){
  .contactGrid{grid-template-columns:1fr;}
}
.contactBlock{
  padding:14px;
  border-radius:16px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  margin-top:12px;
}
.formGrid{
  display:grid;
  grid-template-columns:1fr;
  gap:12px;
  margin-top:12px;
}
.field label{
  display:block;
  font-weight:950;
  color: var(--muted);
  margin: 0 0 8px;
}
.req{color:#ff6b6b;font-weight:950;margin-left:4px}
.input, .textarea{
  width:100%;
  border-radius:14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  color: var(--text);
  padding:12px 12px;
  font-weight:850;
  outline:none;
}
.textarea{min-height:150px; resize:vertical}
.input:focus, .textarea:focus{
  border-color: rgba(124,58,237,.55);
  box-shadow: 0 0 0 4px rgba(124,58,237,.18);
}
.formActions{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  margin-top:10px;
}
.formHint{
  margin-top:10px;
  color: var(--muted);
  font-weight:850;
  line-height:1.6;
  font-size:13px;
}