/* article-docs — visual na linguagem do Overleaf (verde institucional, chrome claro) */
:root{
  --green:#138a07; --green-dk:#0f7005; --green-lt:#e8f3e6;
  --ink:#1b1f23; --ink-2:#495057; --muted:#6c757d;
  --line:#dcdfe3; --bg:#f5f6f7; --panel:#ffffff; --panel-2:#fafbfb;
  --blue:#1a56a0; --red:#b83b2b; --amber:#a8710a;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --serif:Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{margin:0;font:14px/1.5 var(--font);color:var(--ink);background:var(--bg)}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:22px;margin:0 0 4px}
h2{font-size:17px;margin:28px 0 10px}
h3{font-size:15px;margin:0 0 8px}
.muted{color:var(--muted)}
.small{font-size:12px}
.tiny{font-size:11px}
.mono{font-family:var(--mono)}
.pad{padding:24px}
.spacer{flex:1}

/* ---------- topbar ---------- */
.topbar{display:flex;align-items:center;gap:14px;height:48px;padding:0 16px;
  background:var(--panel);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.brand{display:flex;align-items:center;gap:8px;color:var(--ink);font-weight:600}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;place-items:center;width:26px;height:26px;border-radius:5px;
  background:var(--green);color:#fff;font-family:var(--serif);font-size:17px;line-height:1}
.brand-mark.big{width:42px;height:42px;font-size:26px;border-radius:8px}
.brand-text{letter-spacing:.2px}
.crumbs{display:flex;align-items:center;gap:8px;color:var(--ink-2);font-size:13px;min-width:0}
.crumbs strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:40vw}
.crumbs .sep{color:var(--line)}
.tag{background:var(--green-lt);color:var(--green-dk);border-radius:3px;padding:1px 6px;font-size:11px}
.tlink{color:var(--ink-2);font-size:13px}
.who{color:var(--muted);font-size:13px;border-left:1px solid var(--line);padding-left:12px}

/* ---------- botões ---------- */
.btn{display:inline-block;border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:7px 14px;border-radius:3px;font-size:13px;cursor:pointer;font-family:inherit}
.btn:hover{background:var(--panel-2);text-decoration:none}
.btn.primary{background:var(--green);border-color:var(--green);color:#fff;font-weight:500}
.btn.primary:hover{background:var(--green-dk)}
.btn.danger{background:var(--red);border-color:var(--red);color:#fff}
.btn.ghost{background:transparent}
.btn.small{padding:4px 9px;font-size:12px}
.btn.block{display:block;width:100%;text-align:center;margin-top:10px}
.btn:disabled{opacity:.55;cursor:default}
.icon-btn{border:0;background:transparent;color:var(--ink-2);cursor:pointer;font-size:15px;
  width:24px;height:24px;border-radius:3px;line-height:1}
.icon-btn:hover{background:var(--green-lt);color:var(--green-dk)}
input,select,textarea{font-family:inherit;font-size:13px;padding:7px 9px;border:1px solid var(--line);
  border-radius:3px;background:#fff;color:var(--ink);width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid rgba(19,138,7,.25);border-color:var(--green)}
label{display:block;margin-bottom:12px;font-size:13px;color:var(--ink-2)}
label input,label select{margin-top:4px}
.opt{color:var(--muted);font-weight:400}

/* ---------- alertas ---------- */
.alert{padding:11px 13px;border-radius:4px;font-size:13px;margin-bottom:14px;border:1px solid}
.alert.ok{background:var(--green-lt);border-color:#bcd9b6;color:#15500b}
.alert.err{background:#fdeceb;border-color:#f3c4bf;color:#8e2b1e}
.alert.warn{background:#fdf5e3;border-color:#efdcae;color:#7a5606}
.alert-note{margin-top:8px;font-size:12px;opacity:.9}
.badge{display:inline-block;font-size:11px;padding:1px 7px;border-radius:9px;background:#eceef0;color:var(--ink-2)}
.badge.ok{background:var(--green-lt);color:var(--green-dk)}
.badge.err{background:#fdeceb;color:#8e2b1e}
.badge.work{background:#fdf5e3;color:#7a5606}
.ok-txt{color:var(--green-dk)}
.err-txt{color:var(--red)}

/* ---------- login ---------- */
.view-login{background:linear-gradient(180deg,#fff 0,#eef1ef 100%)}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:400px;max-width:100%;background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:28px;box-shadow:0 1px 3px rgba(0,0,0,.05)}
.login-brand{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.login-brand h1{font-size:20px;margin:0}
.login-sub{color:var(--muted);font-size:13px;margin:0 0 20px}
.login-foot{color:var(--muted);font-size:12px;margin:14px 0 0;text-align:center}

/* ---------- dashboard ---------- */
.dash{display:grid;grid-template-columns:250px 1fr;gap:0;min-height:calc(100vh - 48px)}
.dash-side{background:var(--panel);border-right:1px solid var(--line);padding:18px}
.side-nav{margin:18px 0}
.side-nav a{display:block;padding:7px 10px;border-radius:3px;color:var(--ink-2);font-size:13px}
.side-nav a.active{background:var(--green-lt);color:var(--green-dk);font-weight:500}
.side-help{border-top:1px solid var(--line);padding-top:14px;color:var(--muted);font-size:12px}
.side-help h4{margin:0 0 6px;font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--ink-2)}
.dash-main{padding:24px 28px}
.dash-head{display:flex;align-items:baseline;gap:12px;margin-bottom:18px}
.proj-table,.adm-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:4px}
.proj-table th,.adm-table th{text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.4px;
  color:var(--muted);padding:9px 12px;border-bottom:1px solid var(--line);background:var(--panel-2);font-weight:600}
.proj-table td,.adm-table td{padding:11px 12px;border-bottom:1px solid #eef0f1;vertical-align:middle}
.proj-table tr:last-child td,.adm-table tr:last-child td{border-bottom:0}
.proj-table .ttl a{font-weight:500;color:var(--ink)}
.proj-table .ttl a:hover{color:var(--green-dk)}
.proj-table .sub{color:var(--muted);font-size:12px}
.proj-table .acts{text-align:right;white-space:nowrap}
.empty{background:#fff;border:1px dashed var(--line);border-radius:6px;padding:40px;text-align:center;color:var(--muted)}
.empty h3{color:var(--ink)}

dialog{border:0;border-radius:6px;padding:0;box-shadow:0 8px 30px rgba(0,0,0,.18);max-width:460px;width:92vw}
dialog::backdrop{background:rgba(20,25,30,.45)}
dialog form{padding:22px}
dialog h2{margin:0 0 16px;font-size:17px}
.dlg-acts{display:flex;justify-content:flex-end;gap:8px;margin-top:6px}
.dlg-msg{margin-top:10px;font-size:12px;color:var(--red)}

/* ---------- workspace 3 painéis ---------- */
.ws{display:grid;grid-template-columns:264px minmax(420px,1fr) 0;height:calc(100vh - 48px);overflow:hidden;
  transition:grid-template-columns .18s ease}
.ws.with-preview{grid-template-columns:264px minmax(360px,1fr) minmax(380px,44%)}
.ws-left{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;overflow:hidden}
.panel{border-bottom:1px solid var(--line);display:flex;flex-direction:column;min-height:0}
.panel.grow{flex:1}
.panel-head{display:flex;align-items:center;justify-content:space-between;padding:8px 12px;
  font-size:11px;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);
  background:var(--panel-2);border-bottom:1px solid var(--line);font-weight:600}
.head-acts{display:flex;gap:2px}
.conv-list{list-style:none;margin:0;padding:4px;overflow-y:auto;max-height:34vh}
.conv-list a{display:flex;justify-content:space-between;gap:8px;padding:7px 9px;border-radius:3px;
  color:var(--ink-2);font-size:13px}
.conv-list a:hover{background:var(--panel-2);text-decoration:none}
.conv-list li.active a{background:var(--green-lt);color:var(--green-dk);font-weight:500}
.conv-list .when{color:var(--muted);font-size:11px;white-space:nowrap}
.file-tree{overflow-y:auto;padding:6px;flex:1;font-size:13px}
.file-tree .row{display:flex;align-items:center;gap:7px;padding:4px 7px;border-radius:3px;cursor:pointer;color:var(--ink-2)}
.file-tree .row:hover{background:var(--panel-2)}
.file-tree .row.sel{background:var(--green-lt);color:var(--green-dk)}
.file-tree .ic{width:15px;text-align:center;color:var(--muted);font-size:12px}
.file-tree .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file-tree .sz{margin-left:auto;color:var(--muted);font-size:11px}
.file-tree .up{color:var(--blue)}

.ws-mid{display:flex;flex-direction:column;min-width:0;background:#fff}
.chat-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 16px;
  border-bottom:1px solid var(--line);background:var(--panel-2)}
.chat-head-acts{display:flex;align-items:center;gap:8px}
.chat-head select{width:auto}
.chat{flex:1;overflow-y:auto;padding:20px 22px;scroll-behavior:smooth}
.chat-welcome{max-width:640px;margin:6vh auto;text-align:center;color:var(--ink-2)}
.chat-welcome h2{font-family:var(--serif);font-size:24px;color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
.chips.sug{justify-content:flex-start;margin-top:12px}
.chip{border:1px solid var(--line);background:#fff;color:var(--green-dk);padding:7px 12px;border-radius:16px;
  font-size:12.5px;cursor:pointer;font-family:inherit;text-align:left;max-width:100%}
.chip:hover{background:var(--green-lt);border-color:#bcd9b6}
.msg{display:flex;gap:11px;margin-bottom:18px;align-items:flex-start}
.msg .avatar{flex:0 0 28px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  font-size:12px;font-weight:600;background:#e9ecef;color:var(--ink-2)}
.msg.assistant .avatar{background:var(--green);color:#fff;font-family:var(--serif)}
.msg .bubble{min-width:0;max-width:min(760px,92%)}
.msg.user .bubble{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:10px 13px}
.msg .md{white-space:pre-wrap;word-wrap:break-word}
.msg .md code{background:#f2f4f5;padding:1px 4px;border-radius:3px;font-family:var(--mono);font-size:12.5px}
.msg.streaming .bubble:after{content:'▍';color:var(--green);animation:blink 1s steps(2) infinite}
@keyframes blink{50%{opacity:0}}
.tools{margin-bottom:8px;font-size:12px}
.tools summary{cursor:pointer;color:var(--muted)}
.tools pre{background:var(--panel-2);border:1px solid var(--line);border-radius:4px;padding:8px;
  overflow-x:auto;font-size:11.5px;margin:6px 0 0;max-height:220px}
.composer{display:flex;gap:9px;align-items:flex-end;padding:12px 16px;border-top:1px solid var(--line);background:var(--panel-2)}
.composer textarea{resize:none;max-height:180px;line-height:1.5;padding:9px 11px}
.provisioning{padding:24px;text-align:center;color:var(--ink-2);border-bottom:1px solid var(--line)}
.provisioning pre{text-align:left;background:var(--panel-2);border:1px solid var(--line);padding:10px;
  border-radius:4px;font-size:11.5px;max-height:200px;overflow:auto}
.spin{width:22px;height:22px;margin:0 auto 10px;border:2px solid var(--line);border-top-color:var(--green);
  border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.ws-right{background:var(--panel);border-left:1px solid var(--line);display:none;flex-direction:column;overflow:hidden}
.ws.with-preview .ws-right{display:flex}
.preview-body{flex:1;overflow:auto;background:#eceef0}
.preview-body iframe{width:100%;height:100%;border:0;background:#fff}
.preview-body pre{margin:0;padding:14px;font-family:var(--mono);font-size:12.5px;white-space:pre-wrap;
  background:#fff;min-height:100%}
.preview-body img{max-width:100%;display:block;margin:14px auto;background:#fff}
.preview-empty{padding:36px 20px;text-align:center;color:var(--muted);font-size:13px}

/* ---------- admin ---------- */
.admin{padding:24px 28px;max-width:1280px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:16px;margin:16px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:5px;padding:16px}
.card dl{display:grid;grid-template-columns:auto 1fr;gap:4px 10px;margin:8px 0 0;font-size:12.5px}
.card dt{color:var(--muted)}
.card dd{margin:0;overflow-wrap:anywhere}
.stg{display:grid;grid-template-columns:190px 1fr;align-items:center;gap:10px;margin-bottom:8px}
.stg span{font-family:var(--mono);font-size:11.5px;color:var(--ink-2)}
.adm-table select,.adm-table input{width:auto;min-width:80px;padding:4px 6px;font-size:12px}
.link-inp{width:100%;font-family:var(--mono);font-size:10.5px;padding:3px 5px}

@media (max-width:1100px){
  .ws,.ws.with-preview{grid-template-columns:1fr;grid-template-rows:auto 1fr auto;height:auto}
  .ws-left{order:2;border-right:0;border-top:1px solid var(--line)}
  .dash{grid-template-columns:1fr}
  .dash-side{border-right:0;border-bottom:1px solid var(--line)}
}

/* ===================== painel direito: abas estilo Overleaf ===================== */
.pane-tabs{display:flex;align-items:center;gap:2px;padding:4px 6px;background:var(--panel-2);
  border-bottom:1px solid var(--line);min-height:36px}
.pane-tabs .tab{border:0;background:transparent;color:var(--ink-2);font:inherit;font-size:12.5px;
  padding:5px 10px;border-radius:3px;cursor:pointer}
.pane-tabs .tab:hover{background:#eceef0}
.pane-tabs .tab.active{background:#fff;color:var(--green-dk);font-weight:600;box-shadow:inset 0 -2px 0 var(--green)}
.pane-tabs .count{display:inline-block;min-width:16px;padding:0 4px;border-radius:8px;background:#e3e6e8;
  font-size:10.5px;color:var(--ink-2);margin-left:3px}
.pane-tabs .count.bad{background:#fdeceb;color:#8e2b1e}
.pane-tabs .count:empty{display:none}
.pane-file{font-family:var(--mono);font-size:11px;color:var(--muted);overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;max-width:38%}
.pane-body{flex:1;min-height:0;display:flex;flex-direction:column}
.tabview{display:none;flex:1;min-height:0;flex-direction:column}
.tabview.active{display:flex}

/* editor */
.editor-bar{display:flex;align-items:center;gap:10px;padding:6px 10px;border-bottom:1px solid var(--line);background:#fff}
.warn-txt{color:var(--amber)}
.editor-wrap{flex:1;min-height:0;display:flex;background:#fff;overflow:hidden}
.gutter{margin:0;padding:10px 8px 10px 12px;background:var(--panel-2);border-right:1px solid var(--line);
  color:#9aa3ab;font-family:var(--mono);font-size:12.5px;line-height:1.55;text-align:right;
  overflow:hidden;user-select:none;min-width:44px}
#editor{flex:1;border:0;border-radius:0;resize:none;padding:10px 12px;font-family:var(--mono);
  font-size:12.5px;line-height:1.55;tab-size:2;white-space:pre;overflow:auto}
#editor:focus{outline:0;box-shadow:inset 3px 0 0 var(--green-lt)}
#editor[readonly]{background:var(--panel-2);color:var(--ink-2)}

/* pdf */
.pdf-holder{flex:1;min-height:0;background:#eceef0;overflow:auto}
.pdf-holder iframe{width:100%;height:100%;border:0;background:#fff}
.pdf-holder img{max-width:100%;display:block;margin:14px auto;background:#fff}

/* erros de compilação */
.issues{flex:1;overflow:auto;background:#fff}
.issue{display:grid;grid-template-columns:52px 130px 1fr;gap:8px;padding:8px 10px;border-bottom:1px solid #eef0f1;
  font-size:12.5px;cursor:pointer;align-items:baseline}
.issue:hover{background:var(--panel-2)}
.issue .lvl{font-size:10.5px;text-transform:uppercase;letter-spacing:.4px;font-weight:600}
.issue.error .lvl{color:var(--red)}
.issue.warning .lvl{color:var(--amber)}
.issue .loc{font-family:var(--mono);font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis}
.issue .msg{color:var(--ink-2);overflow-wrap:anywhere}
.raw-log{margin:0;padding:12px;font-family:var(--mono);font-size:11px;white-space:pre-wrap;color:var(--ink-2);
  border-top:1px solid var(--line);background:var(--panel-2)}

/* histórico */
.history{flex:1;overflow:auto;background:#fff}
.commit{padding:10px 12px;border-bottom:1px solid #eef0f1}
.c-head{display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.c-head code{font-size:11.5px;color:var(--green-dk);background:var(--green-lt);padding:1px 5px;border-radius:3px}
.c-date{color:var(--muted);font-size:11px}
.c-sub{font-size:12.5px;color:var(--ink-2);margin:4px 0 6px;overflow-wrap:anywhere}
.c-acts{display:flex;gap:6px}

/* menu de contexto da árvore */
.ctx-menu{position:fixed;z-index:60;background:#fff;border:1px solid var(--line);border-radius:4px;
  box-shadow:0 6px 20px rgba(0,0,0,.14);padding:4px;min-width:150px}
.ctx-menu button{display:block;width:100%;text-align:left;border:0;background:transparent;font:inherit;
  font-size:12.5px;padding:6px 10px;border-radius:3px;cursor:pointer;color:var(--ink-2)}
.ctx-menu button:hover{background:var(--green-lt);color:var(--green-dk)}
.tree-foot{padding:8px;border-top:1px solid var(--line)}

/* compartilhamento */
.member-list{margin-top:14px;border-top:1px solid var(--line);padding-top:10px}
.member-list h3{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}
.member{display:flex;align-items:center;gap:8px;padding:5px 0;font-size:13px}
.member span:first-child{flex:1;overflow:hidden;text-overflow:ellipsis}
.ch-title{display:flex;align-items:center;gap:8px;min-width:0}

/* o painel direito começa aberto: o editor é o centro do fluxo, como no Overleaf */
.ws{grid-template-columns:264px minmax(360px,1fr) minmax(380px,42%)}
.ws .ws-right{display:flex}
.ws:not(.with-preview) .ws-right{display:flex}
@media (max-width:1400px){ .ws{grid-template-columns:240px minmax(320px,1fr) minmax(340px,40%)} }