:root{
  --bg:#0c0c0f;
  --panel:#121218;
  --text:#f2f4f7;
  --muted:#a7b0bd;
  --accent:#00d4ff;
  --line:#232333;
  --radius:18px;
  --shadow: 0 12px 30px rgba(0,0,0,.35);
  --max: 1140px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  background: radial-gradient(900px 500px at 20% 10%, rgba(0,212,255,.10), transparent 60%),
              radial-gradient(900px 500px at 80% 0%, rgba(0,212,255,.06), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.5;
}
a{color:inherit; text-decoration:none}
.container{width:min(var(--max), calc(100% - 40px)); margin:0 auto}
.header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(12px);
  background: rgba(12,12,15,.72);
  border-bottom:1px solid rgba(35,35,51,.6);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{
  display:flex; gap:12px; align-items:center; font-weight:700; letter-spacing:.2px;
}
.logo{
  width:34px; height:34px; border-radius:10px;
  background: linear-gradient(135deg, rgba(0,212,255,.85), rgba(0,212,255,.15));
  box-shadow: 0 10px 24px rgba(0,212,255,.16);
}
.menu{display:flex; gap:18px; align-items:center}
.menu a, .menu button{
  font-size:14px;
  color:var(--muted);
  padding:10px 10px;
  border-radius:12px;
}
.menu a:hover, .menu button:hover{color:var(--text); background:rgba(255,255,255,.04)}
.menu .active{color:var(--text); background:rgba(0,212,255,.10); border:1px solid rgba(0,212,255,.18)}
.menu-right{display:flex; gap:10px; align-items:center}
.pill{
  font-size:13px;
  padding:9px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  color:var(--muted);
}
.pill:hover{color:var(--text); border-color: rgba(0,212,255,.35); background:rgba(0,212,255,.06)}
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 14px; border-radius:14px;
  background: rgba(0,212,255,.14);
  border:1px solid rgba(0,212,255,.28);
  color:var(--text);
}
.btn:hover{background: rgba(0,212,255,.18)}
.btn-solid{
  background: linear-gradient(135deg, rgba(0,212,255,.85), rgba(0,212,255,.35));
  border: none;
  box-shadow: 0 12px 26px rgba(0,212,255,.12);
  color:#061016;
  font-weight:700;
}
.btn-solid:hover{filter:brightness(1.02)}
.hero{
  padding:72px 0 34px;
}
.kicker{
  display:inline-flex;
  align-items:center; gap:10px;
  font-size:13px;
  color:var(--muted);
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.02);
}
.h1{
  margin:18px 0 10px;
  font-size:44px;
  line-height:1.1;
  letter-spacing:-.6px;
}
.lead{color:var(--muted); font-size:16px; max-width: 62ch}
.hero-actions{display:flex; gap:12px; margin-top:22px; flex-wrap:wrap}
.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:16px;
}
.card{
  background: rgba(18,18,24,.72);
  border:1px solid rgba(35,35,51,.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card.pad{padding:18px}
.section{padding:26px 0}
.section-title{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:16px; margin-bottom:14px
}
.section-title h2{margin:0; font-size:20px; letter-spacing:-.2px}
.section-title p{margin:0; color:var(--muted); font-size:14px}
.kv{
  border-radius: var(--radius);
  overflow:hidden;
  border:1px solid rgba(35,35,51,.7);
  background: linear-gradient(180deg, rgba(0,212,255,.10), rgba(255,255,255,.02));
}
.kv-inner{padding:18px}
.kv-meta{color:var(--muted); font-size:13px}
.kv-title{margin:10px 0 0; font-size:18px}
.badges{display:flex; flex-wrap:wrap; gap:8px; margin-top:12px}
.badge{
  font-size:12px;
  padding:6px 10px;
  border-radius:999px;
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  color: var(--muted);
}
.tiles{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
}
.tile{
  padding:18px;
}
.tile h3{margin:0 0 6px; font-size:16px}
.tile p{margin:0; color:var(--muted); font-size:14px}
.hr{height:1px; background: rgba(35,35,51,.7); margin:18px 0}
.footer{
  padding:26px 0 44px;
  color:var(--muted);
  border-top:1px solid rgba(35,35,51,.7);
  margin-top:24px;
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap:16px;
}
.small{font-size:13px}
.muted{color:var(--muted)}
/* dropdown */
.dropdown{position:relative}
.dropbtn{
  background:transparent;
  border:0;
  cursor:pointer;
}
.drop{
  position:absolute;
  top:44px;
  left:0;
  min-width: 220px;
  padding:10px;
  border-radius:16px;
  border:1px solid rgba(35,35,51,.75);
  background: rgba(12,12,15,.92);
  box-shadow: 0 18px 50px rgba(0,0,0,.45);
  display:none;
}
.drop a{
  display:flex;
  justify-content:space-between;
  padding:10px 12px;
  border-radius:12px;
  color:var(--muted);
}
.drop a:hover{background: rgba(255,255,255,.04); color: var(--text)}
.dropdown.open .drop{display:block}
/* portfolio grid */
.filters{display:flex; gap:10px; flex-wrap:wrap}
.select, .input{
  padding:10px 12px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background: rgba(18,18,24,.55);
  color: var(--text);
  outline:none;
}
.select option{background:#0c0c0f}
.port-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:16px;
}
.port-item{
  padding:14px;
  cursor:pointer;
}
.thumb{
  border-radius:14px;
  height:170px;
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  overflow:hidden;
  display:flex; align-items:center; justify-content:center;
}
.thumb img{width:100%; height:100%; object-fit:cover}
.port-item h3{margin:10px 0 6px; font-size:15px}
.port-item p{margin:0; color:var(--muted); font-size:13px}
.tags{display:flex; flex-wrap:wrap; gap:6px; margin-top:10px}
.tag{font-size:12px; padding:5px 9px; border-radius:999px; border:1px solid rgba(255,255,255,.10); color:var(--muted); background: rgba(255,255,255,.03)}
/* modal */
.modal{
  position:fixed; inset:0;
  background: rgba(0,0,0,.62);
  display:none;
  align-items:center; justify-content:center;
  padding:24px;
  z-index:80;
}
.modal.open{display:flex}
.modal-card{
  width:min(980px, 100%);
  border-radius: 22px;
  border:1px solid rgba(255,255,255,.14);
  background: rgba(12,12,15,.95);
  box-shadow: 0 25px 70px rgba(0,0,0,.55);
  overflow:hidden;
}
.modal-top{
  display:flex; justify-content:space-between; gap:10px; align-items:center;
  padding:14px 16px;
  border-bottom:1px solid rgba(35,35,51,.7);
}
.modal-top h3{margin:0; font-size:16px}
.iconbtn{
  background: rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.10);
  color: var(--text);
  border-radius: 12px;
  padding:8px 10px;
  cursor:pointer;
}
.modal-body{padding:16px}
.video{
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.10);
  overflow:hidden;
  aspect-ratio: 16/9;
  background: rgba(255,255,255,.03);
}
.video iframe{width:100%; height:100%; border:0}
.form{
  display:grid; grid-template-columns: 1fr 1fr; gap:12px;
}
.form .full{grid-column: 1 / -1}
.label{font-size:13px; color:var(--muted); margin-bottom:6px}
textarea.input{min-height:120px; resize:vertical}
/* responsive */
@media (max-width: 960px){
  .h1{font-size:36px}
  .tiles{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .port-grid{grid-template-columns: repeat(2, 1fr)}
  .form{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .menu{display:none}
  .port-grid{grid-template-columns:1fr}
  .thumb{height:190px}
}