/* DeepChat v2 — visual inspirado no chat do DeepSeek */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;overflow:hidden;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.hidden{display:none !important}
.muted{color:var(--muted)}
.small{font-size:12.5px}
.grad{background:linear-gradient(92deg,#5b7cff,#8b5cf6 60%,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent}

body.theme-dark{
  --bg:#212121;--side:#191919;--panel:#2a2a2c;--panel-2:#333336;--border:#333336;
  --text:#e8e8e8;--muted:#9b9b9f;--dim:#76767c;
  --accent:#4d6bfe;--accent-soft:rgba(77,107,254,.16);
  --user-bubble:#2f2f31;--hover:#262628;
}
body.theme-light{
  --bg:#ffffff;--side:#f7f7f8;--panel:#ffffff;--panel-2:#f3f3f5;--border:#e3e3e6;
  --text:#1b1b1f;--muted:#6b6b73;--dim:#8f8f98;
  --accent:#4d6bfe;--accent-soft:rgba(77,107,254,.12);
  --user-bubble:#f0f0f3;--hover:#eeeef2;
}

/* ---------- login ---------- */
.login{position:fixed;inset:0;display:grid;place-items:center;background:var(--bg);z-index:80}
.login-card{width:min(360px,90vw);background:var(--side);border:1px solid var(--border);border-radius:20px;padding:32px;text-align:center}
.login-card h1{font-size:20px;margin:14px 0 4px}
.login-card p{margin:0 0 20px;font-size:13px}
.login-card input{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--border);background:var(--bg);outline:none;margin-bottom:12px}
.login-card input:focus{border-color:var(--accent)}
.login-error{color:#ff6b6b;font-size:13px;min-height:18px;margin:10px 0 0}
.primary{background:var(--accent);color:#fff;font-weight:600;border-radius:12px;padding:11px 18px;transition:filter .15s}
.primary:hover{filter:brightness(1.08)}
.login-card .primary{width:100%;padding:12px}

/* ---------- app ---------- */
.app{display:flex;height:100dvh;overflow:hidden}
.sidebar{width:264px;flex:0 0 264px;background:var(--side);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:14px 10px 10px;gap:10px}
.brand{display:flex;align-items:center;gap:9px;padding:2px 8px 4px;font-weight:600;letter-spacing:-.01em}
.brand-logo{width:26px;height:26px;border-radius:8px;background:linear-gradient(140deg,#4d6bfe,#8b5cf6);display:grid;place-items:center;font-size:14px;font-weight:800;color:#fff}
.brand-name{font-size:15px}

.new-chat{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:10px 12px;border-radius:12px;background:var(--accent);color:#fff;font-weight:600;font-size:14px;transition:filter .15s}
.new-chat:hover{filter:brightness(1.08)}

.side-search{display:flex;align-items:center;gap:8px;padding:7px 11px;border-radius:11px;background:var(--panel-2);border:1px solid transparent;color:var(--dim)}
.side-search:focus-within{border-color:var(--border);background:var(--bg)}
.side-search input{flex:1;background:none;border:0;outline:none;font-size:13px}
.side-search input::placeholder{color:var(--dim)}

.conv-list{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:1px;padding:2px 0}
.conv-group{font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--dim);padding:12px 10px 5px}
.conv-item{display:flex;align-items:center;gap:6px;padding:8px 10px;border-radius:9px;color:var(--muted);font-size:13.5px;text-align:left;width:100%}
.conv-item:hover{background:var(--hover);color:var(--text)}
.conv-item.active{background:var(--hover);color:var(--text);font-weight:500}
.conv-item .t{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.conv-item .del{opacity:0;color:var(--dim);padding:3px;border-radius:6px;display:grid;place-items:center}
.conv-item:hover .del{opacity:1}
.conv-item .del:hover{color:#ff6b6b}

.side-bottom{border-top:1px solid var(--border);padding-top:9px;display:flex;flex-direction:column;gap:4px}
.side-link{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:9px;color:var(--muted);font-size:13px;width:100%;text-align:left}
.side-link:hover{background:var(--hover);color:var(--text)}
.pill{background:var(--panel-2);color:var(--dim);font-size:11px;padding:1px 8px;border-radius:20px;margin-left:auto}
.user-row{display:flex;align-items:center;gap:9px;padding:8px 8px;border-radius:10px}
.user-row:hover{background:var(--hover)}
.avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(140deg,#4d6bfe,#8b5cf6);display:grid;place-items:center;font-size:12px;font-weight:700;color:#fff}
.user-meta{flex:1;display:flex;flex-direction:column;line-height:1.25;min-width:0}
.user-meta b{font-size:13px;font-weight:600}
.user-meta small{font-size:11px;color:var(--dim)}
.icon-btn{color:var(--muted);padding:6px;border-radius:8px;display:grid;place-items:center}
.icon-btn:hover{background:var(--panel-2);color:var(--text)}

/* ---------- main ---------- */
.main{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg)}
.topbar{display:flex;align-items:center;gap:10px;padding:10px 18px;border-bottom:1px solid var(--border)}
.spacer{flex:1}
.model-pill{position:relative;display:flex;align-items:center;gap:2px;padding:6px 8px;border-radius:10px;color:var(--muted)}
.model-pill:hover{background:var(--hover)}
.model-pill select{appearance:none;background:none;border:0;outline:none;font-size:14px;font-weight:600;color:var(--text);padding-right:2px}
.ctx-chip{font-size:12px;color:var(--muted);padding:4px 10px;border:1px solid var(--border);border-radius:20px}
.ghost-btn{display:flex;align-items:center;gap:7px;padding:7px 11px;border-radius:10px;color:var(--muted);font-size:13px;border:1px solid transparent}
.ghost-btn:hover{background:var(--hover);color:var(--text);border-color:var(--border)}
.only-mobile{display:none}

.scroll{flex:1;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column}
.scroll::-webkit-scrollbar,.conv-list::-webkit-scrollbar,.drawer-body::-webkit-scrollbar{width:10px}
.scroll::-webkit-scrollbar-thumb,.conv-list::-webkit-scrollbar-thumb,.drawer-body::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px;border:3px solid transparent;background-clip:content-box}

/* ---------- vazio ---------- */
.empty{flex:1;display:grid;place-items:center;padding:28px 20px 60px}
.empty-inner{width:100%;max-width:760px;text-align:center}
.empty-logo{width:46px;height:46px;border-radius:14px;background:linear-gradient(140deg,#4d6bfe,#8b5cf6);display:grid;place-items:center;font-size:24px;font-weight:800;color:#fff;margin:0 auto 18px}
.empty-logo.small{width:42px;height:42px;font-size:20px;margin-bottom:14px}
.empty h1{font-size:clamp(26px,3.6vw,34px);font-weight:600;letter-spacing:-.02em;margin:0 0 8px}
.empty-sub{color:var(--muted);font-size:14.5px;margin:0 0 26px}

/* ---------- composer ---------- */
.composer{background:var(--panel);border:1px solid var(--border);border-radius:22px;padding:12px 12px 10px 16px;transition:border-color .15s,box-shadow .15s}
.composer.hero{text-align:left;box-shadow:0 10px 34px rgba(0,0,0,.18)}
.composer:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.composer textarea{width:100%;background:transparent;border:0;outline:none;resize:none;max-height:220px;font-size:15px;line-height:1.55;padding:2px 0 8px}
.composer textarea::placeholder{color:var(--dim)}
.composer-bar{display:flex;align-items:center;justify-content:space-between;gap:10px}
.bar-left,.bar-right{display:flex;align-items:center;gap:8px}
.chip-btn{display:flex;align-items:center;gap:6px;padding:5px 10px;border-radius:20px;border:1px solid var(--border);color:var(--muted);font-size:12px;background:transparent}
.chip-btn:hover{color:var(--text)}
.chip-btn.on{color:var(--accent);border-color:var(--accent-soft);background:var(--accent-soft)}
.chip-btn span{max-width:170px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hint{display:none}
.send{width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;transition:.15s}
.send:hover{filter:brightness(1.08)}
.send:disabled{opacity:.4;cursor:not-allowed}
.send.stop{background:var(--panel-2);color:var(--text)}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:18px}
.chips button{padding:7px 13px;border-radius:20px;border:1px solid var(--border);background:transparent;color:var(--muted);font-size:12.5px;transition:.15s}
.chips button:hover{color:var(--text);background:var(--hover)}
.composer-wrap{padding:8px 20px 14px;max-width:800px;width:100%;margin:0 auto}
.disclaimer{text-align:center;font-size:11.5px;color:var(--muted);opacity:.8;margin:9px 0 0}

/* ---------- thread ---------- */
.thread{width:100%;max-width:800px;margin:0 auto;padding:26px 20px 20px;display:flex;flex-direction:column;gap:24px}
.msg{display:flex;gap:11px;animation:rise .16s ease-out}
@keyframes rise{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:none}}
.msg .who{width:27px;height:27px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:2px}
.msg.user{flex-direction:row-reverse}
.msg.user .who{background:var(--panel-2);color:var(--muted)}
.msg.assistant .who{background:linear-gradient(140deg,#4d6bfe,#8b5cf6);color:#fff}
.bubble{min-width:0;max-width:calc(100% - 52px)}
.msg.user .bubble{background:var(--user-bubble);border-radius:16px 16px 4px 16px;padding:10px 14px;white-space:pre-wrap;word-wrap:break-word}
.msg.assistant .bubble{max-width:100%}
.body{word-wrap:break-word;overflow-wrap:anywhere}
.body>*:first-child{margin-top:0}
.body>*:last-child{margin-bottom:0}
.body p{margin:0 0 12px}
.body h1,.body h2,.body h3,.body h4{line-height:1.3;margin:22px 0 10px;font-weight:600}
.body h1{font-size:22px}.body h2{font-size:19px}.body h3{font-size:17px}.body h4{font-size:15.5px}
.body ul,.body ol{margin:0 0 12px;padding-left:22px}
.body li{margin:4px 0}
.body a{color:var(--accent);text-decoration:none;border-bottom:1px solid var(--accent-soft)}
.body strong{color:var(--text);font-weight:600}
.body blockquote{margin:0 0 12px;padding:2px 0 2px 14px;border-left:3px solid var(--border);color:var(--muted)}
.body hr{border:0;border-top:1px solid var(--border);margin:18px 0}
.body table{border-collapse:collapse;width:100%;margin:0 0 14px;font-size:13.5px;display:block;overflow-x:auto}
.body th,.body td{border:1px solid var(--border);padding:7px 10px;text-align:left}
.body th{background:var(--panel-2);font-weight:600}
.body :not(pre)>code{background:var(--panel-2);border-radius:6px;padding:1px 5px;font-size:13px;font-family:"Cascadia Code",Consolas,Menlo,monospace}
.code{margin:0 0 14px;border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--side)}
.code-head{display:flex;align-items:center;justify-content:space-between;padding:6px 12px;background:var(--panel-2);font-size:11.5px;color:var(--dim)}
.code-head button{font-size:11.5px;color:var(--muted);padding:2px 8px;border-radius:6px}
.code-head button:hover{background:var(--panel);color:var(--text)}
.code pre{margin:0;padding:12px 14px;overflow-x:auto;font-size:13px;line-height:1.55}
.code code{font-family:"Cascadia Code",Consolas,Menlo,monospace}
.think{margin:0 0 12px;border:1px solid var(--border);border-radius:12px;background:var(--side);overflow:hidden}
.think summary{padding:8px 12px;font-size:12.5px;color:var(--muted);cursor:pointer;list-style:none}
.think summary::-webkit-details-marker{display:none}
.think .think-body{padding:10px 12px;color:var(--muted);font-size:13px;white-space:pre-wrap;border-top:1px solid var(--border)}
.tools-shell{display:none;margin:0 0 12px}
.tools{display:flex;flex-direction:column;gap:6px}
.tool{border:1px solid var(--border);border-radius:12px;background:var(--side);overflow:hidden}
.tool summary{display:flex;align-items:center;gap:8px;padding:7px 11px;font-size:12.5px;color:var(--muted);cursor:pointer;list-style:none}
.tool summary::-webkit-details-marker{display:none}
.tool summary:hover{background:var(--hover)}
.tool .tname{flex:0 0 auto;color:var(--accent);font-weight:600;font-size:12px}
.tool code{flex:1 1 auto;min-width:0;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:11.5px;color:var(--dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tool pre{margin:0;padding:9px 11px;border-top:1px solid var(--border);font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;line-height:1.5;color:var(--text);white-space:pre-wrap;word-break:break-word;max-height:280px;overflow:auto}
.tool .tmeta{padding:4px 11px 7px;font-size:10.5px;color:var(--dim)}
.tool.pending .tname::after{content:" …";opacity:.7}
.tool.bad summary .tname{color:#ff7b7b}
.msg-actions{display:flex;gap:2px;margin-top:6px;opacity:0;transition:opacity .15s}
.msg:hover .msg-actions{opacity:1}
.msg-actions button{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--dim);padding:4px 8px;border-radius:7px}
.msg-actions button:hover{background:var(--hover);color:var(--text)}
.caret{display:inline-block;width:7px;height:15px;background:var(--accent);border-radius:2px;vertical-align:-2px;margin-left:2px;animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}

/* ---------- drawer ---------- */
.drawer-bg{position:fixed;inset:0;background:rgba(0,0,0,.45);opacity:0;pointer-events:none;transition:opacity .2s;z-index:60}
.drawer-bg.on{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(520px,100vw);background:var(--bg);border-left:1px solid var(--border);transform:translateX(102%);transition:transform .22s;z-index:70;display:flex;flex-direction:column}
.drawer.open{transform:none}
.drawer-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;padding:18px 20px 12px;border-bottom:1px solid var(--border)}
.drawer-head h2{font-size:16px;margin:0 0 2px;font-weight:600}
.drawer-head p{margin:0}
.tabs{display:flex;gap:4px;padding:10px 16px 0}
.tab{padding:7px 12px;border-radius:9px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px}
.tab:hover{background:var(--hover);color:var(--text)}
.tab.active{background:var(--panel-2);color:var(--text);font-weight:600}
.drawer-body{flex:1;overflow-y:auto;padding:16px 20px 24px}
.field{margin-bottom:20px}
.field-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px;font-size:13px}
.field-head .muted{font-weight:400}
.chars{font-size:11px;color:var(--dim)}
.field textarea{width:100%;min-height:220px;background:var(--side);border:1px solid var(--border);border-radius:12px;padding:12px;font:12.5px/1.6 "Cascadia Code",Consolas,Menlo,monospace;resize:vertical;outline:none}
.field textarea:focus{border-color:var(--accent)}
.field-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:8px}
.primary.sm{padding:7px 14px;font-size:13px;border-radius:9px}
.note{font-size:12px;color:var(--dim);line-height:1.55}
.skill-search input{width:100%;padding:9px 12px;border-radius:10px;border:1px solid var(--border);background:var(--side);outline:none;font-size:13px;margin-bottom:12px}
.skill-list{display:flex;flex-direction:column;gap:2px}
.skill-row{text-align:left;padding:9px 10px;border-radius:9px;width:100%}
.skill-row:hover{background:var(--hover)}
.skill-row b{font-size:13px;font-weight:600;display:block}
.skill-row span{font-size:11.5px;color:var(--dim);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.skill-detail h3{margin:8px 0 4px;font-size:15px}
.skill-detail pre{background:var(--side);border:1px solid var(--border);border-radius:12px;padding:12px;font:12px/1.6 "Cascadia Code",Consolas,Menlo,monospace;white-space:pre-wrap;max-height:46vh;overflow:auto;margin:10px 0}
.back{color:var(--muted);font-size:12.5px;padding:4px 0}
.back:hover{color:var(--text)}

/* ---------- toast ---------- */
.toast{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(20px);background:var(--panel-2);color:var(--text);padding:9px 16px;border-radius:12px;font-size:13px;opacity:0;pointer-events:none;transition:.2s;z-index:90;border:1px solid var(--border)}
.toast.on{opacity:1;transform:translateX(-50%)}

@media (max-width:860px){
  .sidebar{position:fixed;inset:0 auto 0 0;z-index:50;transform:translateX(-100%);transition:transform .2s;box-shadow:20px 0 60px rgba(0,0,0,.4)}
  .sidebar.open{transform:none}
  .only-mobile{display:grid}
  .thread{padding:16px 14px}
  .composer-wrap{padding:8px 12px 12px}
  .empty{padding:20px 14px 40px}
  .chip-btn span{max-width:96px}
  .hint{display:none}
  .ctx-chip{display:none}
  .ghost-btn span{display:none}
}