:root{
  --teal:#1FD3C4; --teal-soft:#CFEFEC; --indigo:#10131F; --indigo-700:#181C2B;
  --indigo-600:#222840; --cream:#F7F5EF; --coral:#FF7A59; --ink:#252A37;
  --muted:#8A90A6; --muted-light:rgba(247,245,239,.66); --line:rgba(247,245,239,.10);
  --body:'Inter',system-ui,-apple-system,sans-serif;
  --display:'Clash Display','Space Grotesk',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:var(--body);background:var(--indigo);color:var(--cream);line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--teal);text-decoration:none}
h1,h2,h3{font-family:var(--display);font-weight:600;letter-spacing:-.02em}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.3rem}
.logo img{width:32px;height:32px;object-fit:contain;filter:drop-shadow(0 0 8px rgba(31,211,196,.45))}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--body);font-weight:600;
  font-size:.98rem;padding:13px 22px;border-radius:999px;cursor:pointer;border:none;transition:transform .15s,box-shadow .15s,background .15s}
.btn-primary{background:var(--teal);color:var(--indigo);box-shadow:0 8px 24px rgba(31,211,196,.28)}
.btn-primary:hover{transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--muted-light);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--teal);border-color:var(--teal)}
.input{width:100%;padding:13px 15px;border-radius:12px;border:1px solid var(--line);background:var(--indigo-700);
  color:var(--cream);font-family:var(--body);font-size:1rem;margin-bottom:14px}
.input:focus{outline:none;border-color:var(--teal)}
label{display:block;font-size:.82rem;color:var(--muted-light);margin-bottom:6px;font-weight:500}
.muted{color:var(--muted)}
.err{color:var(--coral);font-size:.9rem;margin:8px 0;min-height:1.1em}
.ok{color:var(--teal);font-size:.9rem;margin:8px 0;min-height:1.1em}

/* ---- auth (login) page ---- */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;
  background:radial-gradient(circle at 50% 0%,var(--indigo-600),var(--indigo) 60%)}
.auth-card{width:100%;max-width:400px;background:var(--indigo-700);border:1px solid var(--line);
  border-radius:20px;padding:36px 32px}
.auth-card .logo{justify-content:center;margin-bottom:8px}
.auth-card h1{font-size:1.5rem;text-align:center;margin-bottom:6px}
.auth-card .sub{text-align:center;color:var(--muted-light);font-size:.92rem;margin-bottom:26px}
.auth-card .btn{width:100%;margin-top:4px}
.auth-links{display:flex;justify-content:space-between;margin-top:16px;font-size:.85rem}
.auth-links a{color:var(--muted-light)}
.auth-links a:hover{color:var(--teal)}

/* ---- app shell ---- */
.topbar{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 22px;
  border-bottom:1px solid var(--line);background:rgba(16,19,31,.85);backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:20}
.topbar .right{display:flex;align-items:center;gap:16px}
.badge{font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  padding:5px 12px;border-radius:999px;background:rgba(31,211,196,.14);color:var(--teal)}
.app{max-width:1100px;margin:0 auto;padding:26px 22px;display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:880px){.app.two{grid-template-columns:330px 1fr}}
.panel{background:var(--indigo-700);border:1px solid var(--line);border-radius:18px;padding:22px}
.panel h2{font-size:1.1rem;margin-bottom:14px}
.panel h3{font-size:.95rem;margin-bottom:10px;color:var(--muted-light)}

/* ---- chat ---- */
.chat{display:flex;flex-direction:column;height:60vh;min-height:380px}
.chat-scroll{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:12px;padding:4px 2px 12px}
.msg{max-width:78%;padding:11px 15px;border-radius:16px;font-size:.96rem;white-space:pre-wrap;word-wrap:break-word}
.msg .meta{display:block;font-size:.68rem;color:var(--muted);margin-top:6px}
.msg.them{align-self:flex-start;background:var(--indigo-600);border:1px solid var(--line);border-bottom-left-radius:5px}
.msg.me{align-self:flex-end;background:var(--teal);color:var(--indigo);border-bottom-right-radius:5px}
.msg.me .meta{color:rgba(16,19,31,.6)}
.composer{display:flex;gap:10px;margin-top:12px}
.composer textarea{flex:1;resize:none;height:46px;max-height:120px;padding:12px 15px;border-radius:14px;
  border:1px solid var(--line);background:var(--indigo-600);color:var(--cream);font-family:var(--body);font-size:.96rem}
.composer textarea:focus{outline:none;border-color:var(--teal)}
.empty{color:var(--muted);text-align:center;margin:auto;font-size:.92rem}

/* ---- member list (admin) ---- */
.mlist{display:flex;flex-direction:column;gap:6px;max-height:70vh;overflow-y:auto}
.mitem{padding:13px 14px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:background .12s}
.mitem:hover{background:var(--indigo-600)}
.mitem.active{background:var(--indigo-600);border-color:var(--teal)}
.mitem .nm{font-weight:600;font-size:.96rem}
.mitem .sub{font-size:.78rem;color:var(--muted)}
select.input{appearance:none}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:140px}
.hide{display:none!important}
.center-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;color:var(--muted)}

/* ---- portal app shell (sidebar) ---- */
.shell{display:flex;min-height:calc(100vh - 64px)}
.sidebar{width:232px;flex-shrink:0;border-right:1px solid var(--line);padding:18px 12px}
.navbtn{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:12px;color:var(--muted-light);
  cursor:pointer;font-weight:500;font-size:.95rem;margin-bottom:4px;width:100%;background:none;border:none;text-align:left;font-family:var(--body)}
.navbtn:hover{background:var(--indigo-700);color:var(--cream)}
.navbtn.active{background:rgba(31,211,196,.12);color:var(--teal)}
.navbtn .ic{font-size:1.15rem;width:22px;text-align:center}
.content{flex:1;padding:28px;max-width:860px}
.content h1{font-size:1.5rem;margin-bottom:6px}
.content .lead2{color:var(--muted-light);font-size:.92rem;margin-bottom:22px}
.section{display:none}
.section.active{display:block}
@media(max-width:760px){
  .shell{flex-direction:column}
  .sidebar{width:auto;display:flex;gap:4px;overflow-x:auto;border-right:none;border-bottom:1px solid var(--line);padding:10px}
  .navbtn{margin-bottom:0;white-space:nowrap;width:auto}
  .navbtn .lbl{font-size:.9rem}
  .content{padding:20px}
}
/* subscription / billing cards */
.plan-card{background:var(--indigo-700);border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:18px}
.plan-card .top{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.plan-card .pname{font-family:var(--display);font-weight:600;font-size:1.5rem}
.plan-card .price{color:var(--teal);font-weight:600}
.feat{list-style:none;margin-top:8px}
.feat li{padding:8px 0 8px 26px;position:relative;font-size:.95rem;border-bottom:1px solid var(--line)}
.feat li:last-child{border-bottom:none}
.feat li::before{content:"✓";position:absolute;left:0;color:var(--teal);font-weight:700}
.status-pill{font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:5px 12px;border-radius:999px}
.status-active{background:rgba(31,211,196,.16);color:var(--teal)}
.status-paused{background:rgba(255,122,89,.16);color:var(--coral)}
.kv{display:flex;justify-content:space-between;padding:11px 0;border-bottom:1px solid var(--line);font-size:.94rem}
.kv .k{color:var(--muted-light)}
.divider{height:1px;background:var(--line);margin:24px 0}