:root{
  --bg:#080b10; --card:rgba(255,255,255,.08); --card2:rgba(255,255,255,.12);
  --text:#f7f9ff; --muted:#aab3c4; --line:rgba(255,255,255,.14);
  --brand:#7657ff; --brand2:#1dd7ff; --danger:#ff5c7a; --ok:#35e0a1;
  --shadow:0 20px 80px rgba(0,0,0,.35);
}
body.light{
  --bg:#f4f7fb; --card:rgba(255,255,255,.92); --card2:#fff;
  --text:#111827; --muted:#64748b; --line:rgba(15,23,42,.13); --shadow:0 20px 60px rgba(15,23,42,.1);
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",Arial,sans-serif}
.bg{position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 18% 8%,rgba(118,87,255,.35),transparent 35%),radial-gradient(circle at 82% 0%,rgba(29,215,255,.25),transparent 30%),var(--bg)}
.topbar,.wrap{max-width:1180px;margin:auto;padding-left:18px;padding-right:18px}
.topbar{display:flex;align-items:center;gap:12px;padding-top:18px;padding-bottom:12px}
.brand{flex:1}
h1,h2,h3,p{margin-top:0} h1{font-size:22px;margin-bottom:0} h2{font-size:30px;margin-bottom:10px}
.eyebrow{margin:0 0 6px;color:var(--brand2);font-size:13px;letter-spacing:.08em;text-transform:uppercase}.muted{color:var(--muted);line-height:1.7}
.card{background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:24px;padding:20px;backdrop-filter:blur(18px)}
.hero{display:grid;grid-template-columns:1fr 360px;gap:22px;align-items:center}.pill{display:inline-flex;padding:7px 11px;border-radius:999px;background:rgba(29,215,255,.14);color:var(--brand2);font-weight:800}
.loginBox,.form{display:grid;gap:12px}.divider{text-align:center;color:var(--muted)}
label{display:grid;gap:7px;color:var(--muted);font-size:14px} input,textarea,select{width:100%;border:1px solid var(--line);background:var(--card2);color:var(--text);border-radius:14px;padding:13px 14px;outline:none;font:inherit} textarea{resize:vertical}
.btn,.iconBtn{border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:var(--card2);color:var(--text);font-weight:900;cursor:pointer}.btn.primary{border:0;background:linear-gradient(135deg,var(--brand),var(--brand2));color:white}.btn.ghost{background:transparent}.btn.small{padding:8px 10px;font-size:13px}.btn.full{width:100%;margin-top:10px}.iconBtn{width:46px;height:46px;font-size:22px;display:grid;place-items:center}.danger{color:var(--danger)}
.hidden{display:none!important}
.drawer{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.45)}.drawerPanel{width:min(320px,86vw);height:100%;background:var(--bg);border-right:1px solid var(--line);padding:18px;box-shadow:var(--shadow)}.drawerHead{display:flex;justify-content:space-between;align-items:center}.navBtn{width:100%;text-align:left;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:14px;padding:13px 14px;margin:6px 0;font-weight:900;cursor:pointer}.navBtn.active{background:linear-gradient(135deg,var(--brand),var(--brand2));color:white}hr{border:0;border-top:1px solid var(--line);margin:16px 0}
.spaceBar{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:16px}.spaceTools{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.spaceTools select{min-width:240px}
.page{display:none}.page.active{display:block}.grid{display:grid;gap:18px;margin-bottom:18px}.grid.two{grid-template-columns:420px 1fr}.grid.three{grid-template-columns:repeat(3,1fr)}
.homeActions{display:grid;gap:10px}.bigChoice{border:1px solid var(--line);background:var(--card2);color:var(--text);border-radius:18px;padding:18px;text-align:left;font-size:18px;font-weight:900;cursor:pointer}
.inviteGrid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.inviteGrid div{border:1px solid var(--line);background:var(--card2);border-radius:16px;padding:12px;display:grid;gap:8px}.inviteGrid small{display:block;color:var(--muted)}.inviteGrid strong{font-size:16px;word-break:break-all}
.stat{text-align:center}.stat span{font-size:34px;font-weight:1000;display:block}.stat small{color:var(--muted)}
.listHead{display:flex;justify-content:space-between;align-items:center;gap:10px}.list{display:grid;gap:10px;margin-top:14px}
.item{border:1px solid var(--line);background:var(--card2);border-radius:18px;padding:14px;display:grid;gap:8px}.itemTop{display:flex;justify-content:space-between;gap:10px}.itemTitle{font-weight:900}.badge{display:inline-flex;border-radius:999px;padding:5px 9px;background:rgba(118,87,255,.22);font-size:12px;font-weight:900;white-space:nowrap}.badge.ok{background:rgba(53,224,161,.18);color:var(--ok)}
.actions{display:flex;gap:8px;flex-wrap:wrap}.linkBtn{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:12px;padding:8px 10px;cursor:pointer}.summary{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:12px}.summary div{background:var(--card2);border:1px solid var(--line);border-radius:16px;padding:14px}.summary small{display:block;color:var(--muted);margin-bottom:6px}.summary strong{font-size:22px}.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--text);color:var(--bg);padding:12px 16px;border-radius:999px;font-weight:900;box-shadow:var(--shadow);z-index:80}
@media(max-width:820px){.topbar,.spaceBar{align-items:stretch}.spaceBar{flex-direction:column}.hero{grid-template-columns:1fr}.grid.two,.grid.three,.inviteGrid{grid-template-columns:1fr}.spaceTools{display:grid}.spaceTools select{min-width:0}h2{font-size:25px}.card{padding:16px;border-radius:20px}.summary{grid-template-columns:1fr}.btn,input,select,textarea{min-height:46px}.listHead{align-items:stretch;flex-direction:column}}