:root{
  --bg:#0b1020;
  --card:#101a33;
  --muted:#8aa0c7;
  --text:#eaf1ff;
  --line:rgba(255,255,255,.08);
  --accent:#6ea8ff;
  --accent2:#9b7bff;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --radius: 18px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Apple SD Gothic Neo", "Noto Sans KR", Arial, "Malgun Gothic", sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 20% -10%, rgba(110,168,255,.28), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(155,123,255,.20), transparent 55%),
    radial-gradient(900px 600px at 40% 110%, rgba(110,168,255,.14), transparent 55%),
    var(--bg);
  line-height:1.55;
  overflow-x:hidden;
}

a{color:inherit; text-decoration:none}
.wrap{max-width:1100px; margin:0 auto; padding:0 20px}

/* NAV */
.nav{
  position:sticky; top:0; z-index:50;
  backdrop-filter: blur(10px);
  background: linear-gradient(to bottom, rgba(11,16,32,.85), rgba(11,16,32,.45));
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 0;
}
.brand{
  display:flex; gap:10px; align-items:center;
  font-weight:700; letter-spacing:.2px;
}
.dot{
  width:10px; height:10px; border-radius:50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(110,168,255,.12);
}
.menu{display:flex; gap:18px; align-items:center; font-size:14px; color:var(--muted)}
.menu a{
  padding:8px 10px; border-radius:999px;
  transition: transform .12s ease, background .12s ease, color .12s ease;
}
.menu a:hover{background:rgba(255,255,255,.06); color:var(--text); transform: translateY(-1px)}

/* BUTTONS */
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:10px 14px; border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  gap:10px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
  cursor:pointer;
  user-select:none;
}
.btn:hover{transform: translateY(-1px); background:rgba(255,255,255,.07); border-color:rgba(255,255,255,.14)}
.btn.primary{
  border:none;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 18px 40px rgba(110,168,255,.18);
}
.btn.primary:hover{filter:saturate(1.05) brightness(1.02)}
.split-actions{display:flex; gap:10px; flex-wrap:wrap}

/* HERO */
.hero{padding:72px 0 26px; position:relative;}
.grid{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:26px;
  align-items:stretch;
}
.headline{
  font-size:44px;
  line-height:1.1;
  margin:0 0 14px;
  letter-spacing:-.6px;
}
.grad-text{
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}
.sub{
  color:var(--muted);
  font-size:16px;
  margin:0 0 22px;
  max-width:60ch;
}

/* Pills */
.pill-row{display:flex; flex-wrap:wrap; gap:10px; margin:18px 0 24px}
.pill{
  font-size:13px; color:var(--muted);
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  padding:8px 10px; border-radius:999px;
}

/* Cards */
.card{
  background: linear-gradient(180deg, rgba(16,26,51,.92), rgba(16,26,51,.70));
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.card.pad{padding:22px}
.stat{
  display:flex; justify-content:space-between; gap:18px;
  padding:16px 18px;
  border-top:1px solid var(--line);
  color:var(--muted);
  font-size:13px;
}
.stat strong{color:var(--text); font-size:14px}

/* Avatar */
.avatar{
  height:100%;
  min-height:240px;
  display:flex; flex-direction:column; justify-content:space-between;
  padding:22px;
  position:relative;
}
.avatar::before{
  content:"";
  position:absolute; inset:-2px;
  background: radial-gradient(500px 240px at 30% 10%, rgba(110,168,255,.28), transparent 60%),
              radial-gradient(420px 260px at 80% 60%, rgba(155,123,255,.22), transparent 65%);
  pointer-events:none;
  opacity:.9;
}
.avatar > *{position:relative}
.badge{
  display:inline-flex; align-items:center; gap:8px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  padding:8px 10px;
  border-radius:999px;
  width:max-content;
  color:var(--muted);
  font-size:13px;
}
.spark{
  width:18px; height:18px; border-radius:6px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(155,123,255,.10);
}
.name{margin-top:10px; font-size:18px; font-weight:800;}
.quote{color:var(--muted); margin-top:6px; font-size:13px;}
.avatar-actions{display:flex; gap:10px; flex-wrap:wrap}

/* KPI */
.kpi{
  display:grid; grid-template-columns:repeat(2,1fr);
  gap:12px; margin-top:14px;
}
.kpi .mini{
  border:1px solid var(--line);
  background:rgba(255,255,255,.03);
  padding:14px;
  border-radius: 14px;
}
.mini .t{color:var(--muted); font-size:12px}
.mini .v{font-size:18px; font-weight:700; margin-top:6px}

/* Sections */
section{padding:42px 0}
.section-title{
  display:flex; align-items:flex-end; justify-content:space-between; gap:16px;
  margin:0 0 14px;
}
.section-title h2{margin:0; font-size:22px; letter-spacing:-.2px}
.section-title p{margin:0; color:var(--muted); font-size:14px}

/* Project cards */
.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.proj{
  padding:18px;
  border-radius: var(--radius);
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.proj:hover{transform: translateY(-2px); background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.14)}
.proj h3{margin:0 0 8px; font-size:16px}
.proj p{margin:0 0 14px; color:var(--muted); font-size:13px}
.tags{display:flex; flex-wrap:wrap; gap:8px}
.tag{font-size:12px; color:var(--muted); border:1px solid var(--line); padding:6px 8px; border-radius:999px}

/* Two col */
.two-col{display:grid; grid-template-columns:1fr 1fr; gap:14px}

/* Lists */
.list{
  margin:0; padding:0; list-style:none;
  display:flex; flex-direction:column; gap:10px;
}
.li{
  display:flex; justify-content:space-between; gap:10px;
  padding:14px;
  border:1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.03);
}
.li .left{display:flex; flex-direction:column; gap:4px}
.li .left span{color:var(--muted); font-size:12px}
.li .right{color:var(--muted); font-size:12px; white-space:nowrap}

/* Form */
form{display:flex; flex-direction:column; gap:10px}
input, textarea{
  width:100%;
  padding:12px 12px;
  border-radius: 14px;
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
  outline:none;
}
textarea{min-height:120px; resize:vertical}
input:focus, textarea:focus{border-color: rgba(110,168,255,.45)}

.footer{
  padding:26px 0 40px;
  color:var(--muted);
  border-top:1px solid var(--line);
  margin-top:20px;
}
.footer .row{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  flex-wrap:wrap;
}
.small{font-size:12px}
.muted{color:var(--muted)}
.smallp{margin:0 0 14px}
.hint{margin-top:16px; color:var(--muted); font-size:12px}
.hint code{color:var(--text)}

/* Mobile */
.hide-desktop{display:none}
@media (max-width: 920px){
  .grid{grid-template-columns:1fr;}
  .headline{font-size:36px}
  .cards{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .menu{display:none}
  .hide-desktop{display:inline-flex}
}

/* ===========================
   ✅ JS로 토글되는 반응형 이벤트들
=========================== */

/* 레이아웃 토글: 강제로 모바일 느낌(1열) */
body.layout-compact .cards { grid-template-columns: 1fr; }
body.layout-compact .two-col { grid-template-columns: 1fr; }

/* 라이트 테마 토글: CSS 변수만 갈아끼움 */
body.theme-light{
  --bg:#f6f8ff;
  --card:#ffffff;
  --text:#0c1222;
  --muted:#4b5b78;
  --line: rgba(10,18,34,.10);
  --shadow: 0 18px 45px rgba(10,18,34,.10);
}

/* Mobile menu panel */
.mobile-menu{
  position: fixed;
  top: 0;
  right: 0;
  width: min(360px, 86vw);
  height: 100vh;
  transform: translateX(110%);
  transition: transform .2s ease;
  z-index: 80;
  border-left: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(16,26,51,.98), rgba(16,26,51,.85));
  backdrop-filter: blur(10px);
}

body.theme-light .mobile-menu{
  background: rgba(255,255,255,.92);
}

.mobile-menu__inner{
  padding: 18px;
  display:flex;
  flex-direction:column;
  gap: 10px;
}

.mobile-menu__top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}

.mobile-link{
  display:block;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.03);
  color: var(--text);
}
.mobile-link:hover{
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}

/* Backdrop */
.backdrop{
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity .2s ease;
  z-index: 70;
}

/* Open state (JS가 body에 menu-open 클래스 붙임) */
body.menu-open .mobile-menu{ transform: translateX(0); }
body.menu-open .backdrop{
  opacity: 1;
  pointer-events: auto;
}