@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Poppins:wght@400;500;600;700&display=swap');

:root{
  --ink:#0F1729;
  --card:#16203A;
  --card-2:#1C2A4A;
  --gold:#F4A93B;
  --teal:#2DD4BF;
  --cream:#F5F0E6;
  --muted:#8B96B3;
  --danger:#E15B5B;
  --radius:14px;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--ink);
  color:var(--cream);
  font-family:'Hind Siliguri','Poppins',sans-serif;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand{font-family:'Hind Siliguri','Poppins',sans-serif;}
button{font-family:inherit;cursor:pointer;}
a{color:var(--gold);}

/* ---------- Login screen ---------- */
.login-wrap{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(circle at 20% 20%, rgba(244,169,59,.15), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(45,212,191,.12), transparent 40%),
    var(--ink);
  padding:24px;
}
.login-card{
  background:var(--card);
  border:1px solid rgba(255,255,255,.06);
  border-radius:20px;
  padding:44px 36px;
  max-width:400px;
  width:100%;
  text-align:center;
  box-shadow:0 20px 60px rgba(0,0,0,.4);
}
.mascot{
  width:64px;height:64px;border-radius:50%;
  margin:0 auto 18px;
  background:linear-gradient(135deg,var(--gold),var(--teal));
  display:flex;align-items:center;justify-content:center;
  font-size:28px;font-weight:700;color:var(--ink);
}
.login-card h1{font-size:26px;margin:0 0 6px;}
.login-card p{color:var(--muted);font-size:14px;margin:0 0 28px;line-height:1.6;}
.google-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;padding:13px 18px;border-radius:10px;border:none;
  background:var(--cream);color:#1a1a1a;font-weight:600;font-size:15px;
  transition:transform .15s ease;
}
.google-btn:hover{transform:translateY(-1px);}
.by-line{margin-top:22px;font-size:12px;color:var(--muted);}
.by-line b{color:var(--gold);}

/* ---------- Maintenance screen ---------- */
.maint-wrap{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:var(--ink);padding:24px;text-align:center;
}
.maint-card{max-width:420px;}
.maint-card .icon{font-size:48px;margin-bottom:12px;}
.maint-card h2{margin:0 0 10px;}
.maint-card p{color:var(--muted);line-height:1.7;}

/* ---------- App shell ---------- */
.app{display:flex;height:100vh;overflow:hidden;}
.sidebar{
  width:260px;background:var(--card);border-right:1px solid rgba(255,255,255,.06);
  display:flex;flex-direction:column;padding:16px;flex-shrink:0;
}
.sidebar .brand{display:flex;align-items:center;gap:10px;padding:6px 4px 18px;}
.sidebar .brand .mascot{width:36px;height:36px;font-size:16px;margin:0;}
.sidebar .brand span{font-weight:700;font-size:18px;}
.new-chat-btn{
  background:var(--gold);color:var(--ink);border:none;border-radius:10px;
  padding:11px;font-weight:600;font-size:14px;margin-bottom:16px;
}
.chat-history{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:4px;}
.chat-history .item{
  padding:10px 12px;border-radius:8px;font-size:13.5px;color:var(--muted);
  cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.chat-history .item:hover,.chat-history .item.active{background:var(--card-2);color:var(--cream);}
.sidebar-footer{border-top:1px solid rgba(255,255,255,.06);padding-top:12px;display:flex;flex-direction:column;gap:8px;}
.user-pill{display:flex;align-items:center;gap:10px;padding:6px 4px;}
.user-pill img{width:32px;height:32px;border-radius:50%;}
.user-pill .name{font-size:13.5px;font-weight:500;}
.user-pill .email{font-size:11px;color:var(--muted);}
.side-link{
  font-size:13px;color:var(--muted);background:none;border:none;text-align:left;
  padding:8px 4px;border-radius:6px;
}
.side-link:hover{color:var(--cream);}

.main{flex:1;display:flex;flex-direction:column;min-width:0;}
.topbar{
  padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.06);
  display:flex;align-items:center;justify-content:space-between;
}
.topbar h2{font-size:16px;margin:0;font-weight:600;}
.badge{
  font-size:11px;background:rgba(45,212,191,.15);color:var(--teal);
  padding:3px 9px;border-radius:20px;
}

.messages{flex:1;overflow-y:auto;padding:24px;display:flex;flex-direction:column;gap:18px;}
.msg{max-width:720px;display:flex;gap:12px;}
.msg .avatar{
  width:32px;height:32px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.msg.user{align-self:flex-end;flex-direction:row-reverse;}
.msg.user .avatar{background:var(--card-2);color:var(--cream);}
.msg.bot .avatar{background:linear-gradient(135deg,var(--gold),var(--teal));color:var(--ink);}
.bubble{
  background:var(--card);padding:12px 16px;border-radius:14px;
  font-size:14.5px;line-height:1.75;white-space:pre-wrap;word-wrap:break-word;
}
.msg.user .bubble{background:var(--card-2);}
.bubble img{max-width:260px;border-radius:10px;margin-top:8px;display:block;}
.bubble pre{
  background:#0B1220;border-radius:10px;padding:14px;overflow-x:auto;
  font-family:'Fira Code',monospace;font-size:13px;margin:8px 0;
}
.bubble code{font-family:'Fira Code',monospace;}
.typing{display:flex;gap:4px;padding:6px 0;}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--muted);animation:blink 1.2s infinite ease-in-out;}
.typing span:nth-child(2){animation-delay:.2s;}
.typing span:nth-child(3){animation-delay:.4s;}
@keyframes blink{0%,80%,100%{opacity:.3;}40%{opacity:1;}}

.composer{padding:16px 24px 22px;border-top:1px solid rgba(255,255,255,.06);}
.composer-inner{
  display:flex;align-items:flex-end;gap:10px;background:var(--card);
  border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:10px 10px 10px 16px;
  max-width:820px;margin:0 auto;
}
#img-preview{display:flex;gap:8px;padding:0 0 8px;max-width:820px;margin:0 auto;}
#img-preview img{width:56px;height:56px;object-fit:cover;border-radius:8px;}
.composer textarea{
  flex:1;background:none;border:none;resize:none;color:var(--cream);
  font-family:inherit;font-size:14.5px;max-height:160px;outline:none;padding:6px 0;
}
.icon-btn{
  background:none;border:none;color:var(--muted);width:36px;height:36px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;
}
.icon-btn:hover{background:var(--card-2);color:var(--cream);}
.send-btn{
  background:var(--gold);color:var(--ink);border:none;width:36px;height:36px;border-radius:10px;
  flex-shrink:0;font-size:16px;display:flex;align-items:center;justify-content:center;
}
.send-btn:disabled{opacity:.4;}

.blocked-banner{
  background:rgba(225,91,91,.12);color:var(--danger);text-align:center;
  padding:10px;font-size:13px;
}

/* ---------- Admin ---------- */
.admin-wrap{padding:32px;max-width:1100px;margin:0 auto;}
.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;}
.admin-header h1{margin:0;font-size:22px;}
.maint-toggle{
  display:flex;align-items:center;gap:12px;background:var(--card);
  padding:12px 18px;border-radius:12px;border:1px solid rgba(255,255,255,.06);
}
.switch{position:relative;width:46px;height:26px;flex-shrink:0;}
.switch input{opacity:0;width:0;height:0;}
.slider{position:absolute;inset:0;background:var(--card-2);border-radius:20px;transition:.2s;}
.slider:before{content:"";position:absolute;width:20px;height:20px;left:3px;top:3px;background:var(--muted);border-radius:50%;transition:.2s;}
input:checked + .slider{background:var(--danger);}
input:checked + .slider:before{transform:translateX(20px);background:#fff;}

.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-bottom:28px;}
.stat-card{background:var(--card);border-radius:14px;padding:20px;border:1px solid rgba(255,255,255,.06);}
.stat-card .num{font-size:28px;font-weight:700;color:var(--gold);}
.stat-card .label{color:var(--muted);font-size:13px;margin-top:4px;}

.panel{background:var(--card);border-radius:14px;border:1px solid rgba(255,255,255,.06);padding:22px;margin-bottom:22px;}
.panel h3{margin:0 0 16px;font-size:15px;}
.field-row{display:flex;gap:10px;margin-bottom:12px;}
.field-row input,.field-row select{
  flex:1;background:var(--card-2);border:1px solid rgba(255,255,255,.08);
  color:var(--cream);padding:10px 12px;border-radius:8px;font-size:13.5px;
}
.save-btn{background:var(--teal);color:var(--ink);border:none;padding:10px 20px;border-radius:8px;font-weight:600;font-size:13.5px;}

table{width:100%;border-collapse:collapse;font-size:13.5px;}
th,td{text-align:left;padding:10px 12px;border-bottom:1px solid rgba(255,255,255,.06);}
th{color:var(--muted);font-weight:500;font-size:12px;text-transform:uppercase;letter-spacing:.03em;}
.status-pill{padding:3px 10px;border-radius:20px;font-size:11.5px;font-weight:600;}
.status-active{background:rgba(45,212,191,.15);color:var(--teal);}
.status-blocked{background:rgba(244,169,59,.15);color:var(--gold);}
.status-banned{background:rgba(225,91,91,.15);color:var(--danger);}
.row-actions{display:flex;gap:6px;}
.row-actions button{
  border:none;background:var(--card-2);color:var(--cream);padding:5px 10px;
  border-radius:6px;font-size:12px;
}
.row-actions button.danger{color:var(--danger);}
.row-actions button:hover{opacity:.8;}

@media(max-width:760px){
  .sidebar{position:fixed;left:-280px;top:0;bottom:0;z-index:20;transition:.2s;}
  .sidebar.open{left:0;}
  .msg{max-width:92%;}
}