:root{
  --ink:#1B1330; --ink-2:#251A40; --ink-3:#322553;
  --paper:#F5EFFF; --muted:#B6A8D6; --line:rgba(181,168,214,.18);
  --glow:#9A6BFF;
  --c-animal:#FF7A85; --c-inst:#FFC861; --c-nature:#4FD6B8; --c-fx:#69A6FF; --c-melody:#C58BFF;
  --radius:22px; --shadow:0 18px 50px -18px rgba(0,0,0,.6);
  --font-display:"Jua", system-ui, sans-serif;
  --font-body:"Noto Sans KR", system-ui, sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-tap-highlight-color:transparent;}
html,body{margin:0;}
a,button{-webkit-tap-highlight-color:transparent;}
body{
  font-family:var(--font-body);
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(154,107,255,.22), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(79,214,184,.14), transparent 55%),
    var(--ink);
  color:var(--paper); min-height:100vh; -webkit-font-smoothing:antialiased; line-height:1.55;
}
a{color:inherit;}
.wrap{max-width:760px; margin:0 auto; padding:26px 20px 0; min-height:100vh; display:flex; flex-direction:column;}

/* top bar / breadcrumb */
.topbar{display:flex; align-items:center; gap:12px; margin-bottom:14px;}
.brand{font-family:var(--font-display); font-size:23px; letter-spacing:.5px; display:flex; align-items:center; gap:10px; text-decoration:none;}
.brand .dot{width:34px; height:34px; border-radius:11px; display:grid; place-items:center;
  background:linear-gradient(140deg,var(--glow),#5B8DEF); font-size:18px; box-shadow:0 8px 22px -8px var(--glow);}
.brand small{display:block; font-family:var(--font-body); font-size:11px; color:var(--muted); font-weight:500; margin-top:-2px;}
.crumb{display:inline-flex; align-items:center; gap:6px; color:var(--muted); text-decoration:none; font-size:13px; margin-bottom:18px;}
.crumb:hover{color:var(--paper);}

/* hero */
.hero{margin-bottom:8px;}
.hero h1{font-family:var(--font-display); font-weight:400; line-height:1.18; font-size:clamp(28px,6.5vw,46px); margin:0 0 10px; letter-spacing:.5px;}
.hero h1 .hl{color:var(--glow);}
.hero p{color:var(--muted); margin:0; font-size:15px;}

/* labels */
.seclbl{font-size:12px; color:var(--muted); font-weight:700; letter-spacing:.4px; margin:30px 4px 12px;}

/* buttons */
.btn{border:none; cursor:pointer; font-family:var(--font-body); font-weight:700; font-size:13px; border-radius:10px;
  padding:10px 14px; color:#1B1330; background:var(--paper); transition:filter .12s ease, transform .12s ease; text-decoration:none; display:inline-block;}
.btn:hover{filter:brightness(.94);} .btn:active{transform:scale(.97);}
.btn.ghost{background:transparent; color:var(--paper); border:1px solid var(--line);}
.btn:focus-visible{outline:2px solid var(--glow); outline-offset:2px;}

/* hub system cards */
.syscards{display:grid; grid-template-columns:repeat(auto-fill,minmax(230px,1fr)); gap:16px; margin-top:18px;}
.syscard{display:flex; flex-direction:column; gap:8px; text-decoration:none; color:var(--paper);
  background:var(--ink-3); border:1px solid var(--line); border-radius:var(--radius); padding:22px;
  border-top:5px solid var(--cc, var(--glow)); box-shadow:var(--shadow);
  transition:transform .15s ease, border-color .15s ease;}
.syscard:hover{transform:translateY(-3px); border-color:var(--cc, var(--glow));}
.syscard .sico{font-size:34px; line-height:1;}
.syscard .stitle{font-family:var(--font-display); font-size:24px;}
.syscard .sdesc{color:var(--muted); font-size:13px;}
.syscard .sgo{margin-top:6px; font-size:12px; color:var(--cc, var(--glow)); font-weight:700;}
.syscards .empty,.note{color:var(--muted); font-size:14px;}

/* sound: category buttons */
.cats{display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px;}
.cat{position:relative; cursor:pointer; border:1px solid var(--line); border-radius:18px; background:var(--ink-3); color:var(--paper);
  padding:18px 16px; text-align:left; font-family:var(--font-body); display:flex; flex-direction:column; gap:3px;
  transition:transform .12s ease, border-color .15s ease, box-shadow .15s ease; border-left:5px solid var(--cc);}
.cat:hover{transform:translateY(-2px); border-color:var(--cc);}
.cat:active{transform:scale(.98);}
.cat:focus-visible{outline:2px solid var(--glow); outline-offset:2px;}
.cat.active{box-shadow:0 0 0 2px var(--cc), 0 14px 30px -14px var(--cc);}
.cat.empty{opacity:.5;}
.cat .cico{font-size:26px; line-height:1;}
.cat .cdot{width:22px; height:22px; border-radius:50%; background:var(--cc); box-shadow:0 0 14px -2px var(--cc);}
.cat .cname{font-family:var(--font-display); font-size:21px; line-height:1.1;}
.cat .ccnt{font-size:12px; color:var(--muted);}

/* sound: player stage */
.stage{background:var(--ink-2); border:1px solid var(--line); border-radius:var(--radius); box-shadow:var(--shadow);
  padding:30px 20px 26px; margin:18px 0 0; display:flex; flex-direction:column; align-items:center; text-align:center;}
.eyebrow{font-size:11px; letter-spacing:3px; text-transform:uppercase; color:var(--muted); margin-bottom:14px;}
.orb{position:relative; width:min(64vw,220px); height:min(64vw,220px); display:grid; place-items:center; margin-bottom:18px;}
.orb .ring{position:absolute; inset:0; border-radius:50%;
  background:radial-gradient(circle at 50% 45%, rgba(154,107,255,.55), rgba(154,107,255,0) 62%); transform:scale(.6); transition:transform .12s ease;}
.eq{display:flex; align-items:flex-end; gap:4px; height:96px; z-index:1;}
.eq span{width:6px; border-radius:4px; height:10px; background:linear-gradient(180deg,#fff,var(--glow)); box-shadow:0 0 12px -2px var(--glow);}
.now .nlbl{font-size:12px; color:var(--muted); letter-spacing:1px;}
.now .nval{font-family:var(--font-display); font-size:24px; margin-top:3px; min-height:30px; word-break:break-word;}
.now .ncat{font-size:13px; margin-top:2px;}

/* qr tool */
.qrtool{display:flex; gap:24px; flex-wrap:wrap; align-items:flex-start; margin-top:22px;}
.qrpane{background:#fff; border-radius:18px; padding:16px; flex:0 0 auto; display:grid; place-items:center; min-width:200px; min-height:200px;}
.qrpane img,.qrpane canvas{display:block; width:200px !important; height:200px !important;}
.qrpane .ph{font-size:12px; color:#888; text-align:center; padding:40px 10px;}
.qrform{flex:1 1 260px; min-width:0;}
.field{margin-bottom:14px;}
.field label{display:block; font-size:12px; color:var(--muted); font-weight:700; margin-bottom:6px;}
.field input{width:100%; background:var(--ink); border:1px solid var(--line); color:var(--paper); border-radius:10px; padding:11px 13px; font-size:14px; font-family:ui-monospace,monospace;}
.field input:focus{outline:2px solid var(--glow); outline-offset:1px; border-color:transparent;}
.row{display:flex; gap:8px; flex-wrap:wrap;}

.foot{margin-top:36px; color:var(--muted); font-size:12px; text-align:center; opacity:.75;}

/* 상단 유틸 줄(브레드크럼 + 홈 버튼) */
.toprow{display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:18px;}
.toprow .crumb{margin-bottom:0;}
.homebtn{display:inline-flex; align-items:center; gap:6px; padding:8px 14px; font-size:13px;}

/* 사이트 하단 푸터(저작권) — 내용이 짧아도 항상 맨 아래에 고정 */
.sitefoot{margin-top:auto; padding:22px 16px; border-top:1px solid var(--line);
  color:var(--muted); text-align:center; font-size:12.5px;}

@media (prefers-reduced-motion: reduce){ .cat,.orb .ring,.syscard{transition:none;} }
@media (max-width:520px){ .qrtool{flex-direction:column;} .qrpane{align-self:center;} }