:root{
  --bg:oklch(21% 0.018 300); --panel:oklch(25% 0.02 300); --panel2:oklch(29% 0.023 300); --line:oklch(37% 0.03 300);
  --text:oklch(95% 0.008 300); --muted:oklch(72% 0.025 300); --accent:oklch(70% 0.14 305); --accent2:oklch(78% 0.13 330);
  --ok:oklch(72% 0.12 155); --warn:oklch(80% 0.12 85); --user:oklch(30% 0.028 300); --code:oklch(16% 0.015 300); --sidebar:oklch(18% 0.018 300); --radius:14px;
}
[data-theme="light"]{
  --bg:oklch(96% 0.012 300); --panel:oklch(100% 0 0); --panel2:oklch(95.5% 0.014 300); --line:oklch(89% 0.018 300);
  --text:oklch(32% 0.03 300); --muted:oklch(54% 0.03 300); --accent:oklch(56% 0.16 300); --accent2:oklch(64% 0.15 320);
  --ok:oklch(52% 0.12 155); --warn:oklch(60% 0.12 85); --user:oklch(94% 0.02 300); --code:oklch(95% 0.012 300); --sidebar:oklch(94% 0.016 300);
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--text);
  font:15px/1.55 'Nunito',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  transition:background .2s,color .2s}
.hidden{display:none !important}

/* ---------- logo Prodigy Lab AI (4 pétalas + AI) ---------- */
.logo-mark{display:inline-flex;width:34px;height:34px;font-size:34px;flex:0 0 auto}
.logo-mark.big{width:100px;height:100px;font-size:100px}
.plogo{position:relative;width:100%;height:100%;animation:plpulse 2.8s ease-in-out infinite;transform-origin:50% 50%}
.plogo .pt{position:absolute;width:51%;height:51%}
.plogo .p1{border-radius:50% 50% 50% 0;background:oklch(72% 0.13 300);top:0;left:24.5%}
.plogo .p2{border-radius:50% 50% 0 50%;background:oklch(66% 0.14 310);top:24.5%;left:0}
.plogo .p3{border-radius:0 50% 50% 50%;background:oklch(78% 0.12 330);top:24.5%;right:0}
.plogo .p4{border-radius:50% 0 50% 50%;background:oklch(60% 0.15 290);bottom:0;left:24.5%}
.plogo .pcore{position:absolute;inset:24.5%;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;font-family:'Baloo 2',sans-serif;font-weight:800;color:oklch(50% 0.14 305);font-size:0.3em;line-height:1}
.logo-mark.big .plogo{filter:drop-shadow(0 8px 20px oklch(58% 0.15 300 / .35))}
@keyframes plpulse{0%,100%{transform:scale(1) rotate(0deg)}50%{transform:scale(1.07) rotate(6deg)}}

/* ---------- auth ---------- */
.auth-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(1200px 600px at 50% -10%,var(--panel2),var(--bg) 60%);padding:20px}
.auth-card{width:100%;max-width:410px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.brand{display:flex;gap:14px;align-items:center;margin-bottom:22px}
.brand-text h1{margin:0;font-size:19px}
.brand-text p{margin:2px 0 0;color:var(--muted);font-size:13px}
.tabs{display:flex;gap:6px;background:var(--panel2);padding:5px;border-radius:10px;margin-bottom:18px}
.tab{flex:1;padding:9px;border:0;background:transparent;color:var(--muted);border-radius:7px;cursor:pointer;font-weight:600}
.tab.active{background:var(--accent);color:#fff}
.auth-form{display:flex;flex-direction:column;gap:11px}
.auth-form input{background:var(--panel2);border:1px solid var(--line);color:var(--text);
  padding:12px 14px;border-radius:10px;font-size:15px;outline:none}
.auth-form input:focus{border-color:var(--accent)}
.btn-primary{background:var(--accent);color:#fff;border:0;padding:12px;border-radius:10px;font-weight:700;cursor:pointer;font-size:15px}
.btn-primary:hover{filter:brightness(1.08)}
.hint{color:var(--muted);font-size:12px;text-align:center;margin:4px 0 0}
.auth-error{color:var(--accent2);font-size:13px;margin-top:12px;min-height:18px;text-align:center}
.auth-foot{display:flex;justify-content:center;gap:10px;align-items:center;margin-top:16px}

/* ---------- controls ---------- */
.lang-select{background:var(--panel2);border:1px solid var(--line);color:var(--text);padding:7px 9px;border-radius:8px;font-size:13px;cursor:pointer;outline:none}
.icon-btn{background:transparent;border:1px solid var(--line);color:var(--text);font-size:15px;cursor:pointer;padding:6px 9px;border-radius:8px;line-height:1}
.icon-btn:hover{background:var(--panel2)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text);padding:7px 10px;border-radius:9px;cursor:pointer;font-size:12.5px}
.btn-ghost:hover{background:var(--panel2)}
#admin-btn{border-color:var(--accent);color:var(--accent2)}

/* ---------- layout ---------- */
.layout{display:flex;height:100vh;overflow:hidden}

/* sidebar */
.sidebar{width:264px;flex:0 0 264px;background:var(--sidebar);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:14px 12px}
.side-brand{display:flex;gap:11px;align-items:center;padding:4px 6px 14px}
.side-brand strong{display:block;font-size:16px;font-family:'Baloo 2',sans-serif}
.side-sub{display:block;color:var(--muted);font-size:11px}
.new-chat-btn{width:100%;display:flex;align-items:center;gap:9px;background:var(--panel);border:1px solid var(--line);
  color:var(--text);padding:11px 14px;border-radius:11px;cursor:pointer;font-size:14px;font-weight:600}
.new-chat-btn:hover{background:var(--panel2);border-color:var(--accent2)}
.new-chat-btn .plus{color:var(--accent2);font-size:17px}
.side-history{flex:1;overflow-y:auto;margin-top:16px;min-height:0}
.side-label{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.5px;padding:0 8px 6px}
.conv-list{display:flex;flex-direction:column;gap:2px}
.conv-item{display:flex;align-items:center;gap:6px;padding:9px 10px;border-radius:9px;cursor:pointer;
  font-size:13.5px;color:var(--text);white-space:nowrap}
.conv-item:hover{background:var(--panel2)}
.conv-item.active{background:var(--panel)}
.conv-item .conv-title{flex:1;overflow:hidden;text-overflow:ellipsis}
.conv-item .conv-del{opacity:0;border:0;background:transparent;color:var(--muted);cursor:pointer;font-size:13px;padding:2px 4px;border-radius:6px}
.conv-item:hover .conv-del{opacity:1}
.conv-item .conv-del:hover{color:var(--accent2);background:var(--line)}
.conv-empty{color:var(--muted);font-size:12.5px;padding:8px}
.side-foot{border-top:1px solid var(--line);padding-top:12px;margin-top:8px;display:flex;flex-direction:column;gap:9px}
.side-user{font-size:13px;color:var(--muted);padding:0 6px}
.side-actions{display:flex;gap:6px;flex-wrap:wrap}
.side-controls{display:flex;gap:7px;align-items:center;padding-top:2px}

/* main */
.main{flex:1;display:flex;flex-direction:column;min-width:0;height:100vh}
.main.home{justify-content:center;align-items:center;gap:20px;padding:20px}
.main.home .messages{display:none}
.main.chat .hero,.main.chat .chips{display:none}
.hero{display:flex;flex-direction:column;align-items:center;gap:14px}
.hero h1{margin:0;font-size:31px;font-weight:600;letter-spacing:.2px;font-family:'Baloo 2',cursive;color:var(--text)}
.chips{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}
.chip{background:var(--panel);border:1px solid var(--line);color:var(--text);padding:9px 15px;border-radius:11px;
  cursor:pointer;font-size:13.5px;display:flex;align-items:center;gap:7px}
.chip:hover{border-color:var(--accent2);background:var(--panel2)}

/* messages (chat mode) */
.main.chat .messages{display:block;flex:1;overflow-y:auto;width:100%;padding:26px 0}
.msg{max-width:820px;margin:0 auto 22px;padding:0 24px;display:flex;gap:14px}
.msg .avatar{width:32px;height:32px;border-radius:9px;flex:0 0 32px;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;color:#fff}
.msg.user .avatar{background:var(--user);color:var(--text)}
.msg.assistant .avatar{background:transparent;padding:0;font-size:32px}
.msg .body{flex:1;min-width:0}
.msg .who{font-size:12px;color:var(--muted);margin-bottom:4px}
.bubble{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px 16px;overflow-x:auto}
.msg.user .bubble{background:var(--user)}
.bubble img{max-width:260px;border-radius:8px;margin:6px 8px 6px 0;border:1px solid var(--line)}
.bubble p{margin:.5em 0}
.bubble h1,.bubble h2,.bubble h3{margin:.7em 0 .4em;line-height:1.3}
.bubble ul,.bubble ol{margin:.4em 0;padding-left:1.4em}
.bubble code{background:var(--code);padding:2px 6px;border-radius:5px;font-size:13px;font-family:"SF Mono",Consolas,monospace}
.bubble pre{background:var(--code);padding:12px 14px;border-radius:9px;overflow-x:auto;border:1px solid var(--line)}
.bubble pre code{background:none;padding:0}
.bubble table{border-collapse:collapse;margin:.6em 0;font-size:13px;width:100%}
.bubble th,.bubble td{border:1px solid var(--line);padding:7px 10px;text-align:left}
.bubble th{background:var(--panel2);font-weight:700}
.bubble tr:nth-child(even) td{background:rgba(127,127,127,.06)}
.tool-chip{display:inline-flex;align-items:center;gap:8px;background:var(--panel2);border:1px solid var(--line);border-radius:20px;padding:6px 12px;margin:6px 0;font-size:13px;color:var(--muted)}
.tool-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--accent2);animation:pulseDot 1s infinite}
.tool-chip.done .dot{background:var(--ok);animation:none}
.tool-chip code{background:var(--code);padding:1px 6px;border-radius:4px;color:var(--text)}
@keyframes pulseDot{0%,100%{opacity:1}50%{opacity:.3}}
.cursor{display:inline-block;width:8px;height:15px;background:var(--accent2);animation:pulseDot 1s infinite;vertical-align:middle;border-radius:1px}

/* composer */
.composer{width:100%}
.main.home .composer{max-width:720px}
.main.chat .composer{max-width:820px;margin:0 auto;padding:0 24px 16px}
.thumbs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 8px}
.thumbs:empty{margin:0}
.thumb{position:relative;width:56px;height:56px;border-radius:8px;overflow:hidden;border:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb button{position:absolute;top:2px;right:2px;background:rgba(0,0,0,.7);color:#fff;border:0;border-radius:50%;width:18px;height:18px;cursor:pointer;font-size:11px;line-height:1}
.composer-row{display:flex;gap:10px;align-items:flex-end;background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:10px 12px;box-shadow:0 4px 20px rgba(0,0,0,.12)}
#input{flex:1;background:transparent;border:0;color:var(--text);resize:none;outline:none;font-size:15px;padding:8px 6px;line-height:1.5;min-height:150px;max-height:340px;font-family:inherit;scrollbar-width:none}
#input::-webkit-scrollbar{width:0;height:0;display:none}
.btn-send{background:var(--accent);color:#fff;border:0;padding:10px 20px;border-radius:11px;font-weight:700;cursor:pointer}
.btn-send:hover{filter:brightness(1.08)}
.btn-send:disabled{opacity:.5;cursor:default}

/* ---------- modais ---------- */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal-card{width:100%;max-width:720px;max-height:85vh;overflow:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.modal-head h3{margin:0}
.admin-create,.conn-form{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:6px}
.admin-create input,.conn-form input{background:var(--panel2);border:1px solid var(--line);color:var(--text);padding:9px 11px;border-radius:9px;font-size:14px;outline:none;flex:1;min-width:130px}
.conn-form input:disabled{opacity:.55}
.conn-note{color:var(--muted);font-size:12.5px;margin:0 0 14px;padding:9px 12px;background:var(--panel2);border:1px solid var(--line);border-radius:9px}
.chk{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px;white-space:nowrap}
.admin-table-wrap{overflow-x:auto;margin-top:10px}
.admin-table{width:100%;border-collapse:collapse;font-size:14px}
.admin-table th,.admin-table td{border-bottom:1px solid var(--line);padding:9px 8px;text-align:left}
.admin-table th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
.admin-table .acts{display:flex;gap:6px;flex-wrap:wrap}
.admin-table .acts button{background:var(--panel2);border:1px solid var(--line);color:var(--text);padding:5px 9px;border-radius:7px;cursor:pointer;font-size:12px}
.admin-table .acts button:hover{border-color:var(--accent)}
.admin-table .acts button.danger{color:var(--accent2);border-color:var(--accent2)}
.badge{padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.badge.a{background:rgba(90,158,111,.16);color:var(--ok)}
.badge.b{background:rgba(217,119,87,.16);color:var(--accent2)}

@media(max-width:760px){
  .sidebar{width:66px;flex-basis:66px}
  .side-brand div,.side-sub,.new-chat-btn span:not(.plus),.side-history,.side-user,.side-actions{display:none}
  .side-controls{flex-direction:column}
}