:root{
  --accent:#0f6cbd;--accent-h:#115ea3;
  --bg:#f5f5f5;--surface:#fff;--surface2:#fafafa;--line:#e1e1e1;
  --text:#242424;--muted:#616161;--sel:#ebf3fc;--hover:#f0f0f0;--danger:#c50f1f;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light dark;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#1f1f1f;--surface:#292929;--surface2:#242424;--line:#3d3d3d;--text:#f5f5f5;--muted:#adadad;--sel:#1f3a56;--hover:#333}
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{font:14px/1.45 var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:1px}
#app{height:100%}

/* ---------- Login ---------- */
.auth{min-height:100%;display:grid;place-items:center;padding:24px;background:linear-gradient(160deg,var(--bg) 0%,var(--sel) 100%)}
.card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:36px 32px 28px;box-shadow:0 8px 28px rgba(0,0,0,.08)}
.logo{width:48px;height:48px;border-radius:10px;background:var(--accent);color:#fff;display:grid;place-items:center;margin-bottom:18px}
.card h1{margin:0 0 4px;font-size:22px;font-weight:600;line-height:1.25}
.card .sub{margin:0 0 22px;color:var(--muted)}
.field{display:block;margin-bottom:14px}
.field>span{display:block;margin-bottom:5px;font-weight:600;font-size:13px}
.inp{width:100%;height:36px;padding:0 10px;border:1px solid var(--line);border-bottom-color:#8a8a8a;border-radius:4px;background:var(--surface);transition:border-color .15s}
.inp:hover{border-color:#a0a0a0}
.inp:focus{outline:0;border-color:var(--accent);box-shadow:inset 0 -2px 0 var(--accent)}
.pw{position:relative}
.pw .inp{padding-right:72px}
.pw button{position:absolute;right:4px;top:4px;height:28px;padding:0 10px;border:0;border-radius:4px;background:transparent;color:var(--accent);font-weight:600}
.pw button:hover{background:var(--hover)}
.chk{display:flex;align-items:center;gap:8px;margin:2px 0 18px;color:var(--muted);cursor:pointer}
.chk input{width:16px;height:16px;accent-color:var(--accent)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 16px;border:1px solid var(--line);border-radius:4px;background:var(--surface);font-weight:600}
.btn:hover{background:var(--hover)}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.pri:hover{background:var(--accent-h);border-color:var(--accent-h)}
.btn:disabled{opacity:.6;cursor:default}
.card .btn.pri{width:100%}
.err{margin:0 0 14px;padding:9px 12px;border-radius:4px;background:#fde7e9;color:#a4262c;border-left:3px solid var(--danger);font-size:13px}
@media (prefers-color-scheme:dark){.err{background:#442726;color:#ffb3b8}}
.foot{margin:18px 0 0;font-size:12px;color:var(--muted);text-align:center}

/* ---------- App ---------- */
.wm{display:grid;grid-template-rows:48px 1fr;height:100%;position:relative}
.top{display:flex;align-items:center;gap:12px;padding:0 12px;background:var(--accent);color:#fff}
.brand{font-weight:600;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:220px}
.search{flex:1;max-width:560px;margin:0 auto;display:flex;align-items:center;gap:8px;height:32px;padding:0 10px;border-radius:4px;background:rgba(255,255,255,.22);color:#fff}
.search:focus-within{background:var(--surface);color:var(--text)}
.search input{flex:1;min-width:0;border:0;background:transparent;outline:0;color:inherit}
.search input::placeholder{color:inherit;opacity:.8}
.who{display:flex;align-items:center;gap:8px}
.wmail{font-size:13px;opacity:.95;max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ib{display:inline-grid;place-items:center;width:32px;height:32px;border:0;border-radius:4px;background:transparent;color:inherit}
.ib:hover{background:rgba(127,127,127,.2)}
.top .menu{display:none}
.av{flex:none;display:grid;place-items:center;width:36px;height:36px;border-radius:50%;color:#fff;font-size:13px;font-weight:600;background:#5c5c5c}
.av.sm{width:28px;height:28px;font-size:11px;background:rgba(255,255,255,.25)}

.body{display:grid;grid-template-columns:230px 370px minmax(0,1fr);min-height:0;background:var(--surface)}
.folders{padding:10px 8px;overflow:auto;background:var(--surface2);border-right:1px solid var(--line)}
.folders .new{width:100%;margin-bottom:10px;justify-content:flex-start;padding:0 12px}
.f{display:flex;align-items:center;gap:10px;width:100%;height:36px;padding:0 10px;border:0;border-radius:4px;background:transparent;text-align:left;position:relative}
.f:hover{background:var(--hover)}
.f.on{background:var(--sel);font-weight:600}
.f.on::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;background:var(--accent)}
.f svg{flex:none;color:var(--muted)}
.f.on svg{color:var(--accent)}
.fn{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cnt{font-size:12px;font-weight:600;color:var(--accent)}

.list{display:flex;flex-direction:column;min-height:0;border-right:1px solid var(--line)}
.lh{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 8px 0 16px;border-bottom:1px solid var(--line)}
.lh h2{margin:0;font-size:16px;font-weight:600}
.rows{flex:1;overflow:auto}
.row{display:flex;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);cursor:pointer;position:relative}
.row:hover{background:var(--hover)}
.row.on{background:var(--sel)}
.row.unread::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.rc{flex:1;min-width:0}
.r1,.r2{display:flex;align-items:center;gap:8px;justify-content:space-between}
.from,.subj{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.unread .from{font-weight:700}
.unread .subj{font-weight:600;color:var(--accent)}
.row:not(.unread) .subj{color:var(--muted)}
.dt{flex:none;font-size:12px;color:var(--muted)}
.r2 svg{flex:none;color:#d98e04}
.pager{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:6px 10px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}
.pager .ib{color:var(--text)}
.pager .ib:disabled{opacity:.35;cursor:default}
.pager .ib svg.fl{transform:scaleX(-1)}
.note{padding:28px 20px;text-align:center;color:var(--muted)}
.note.bad{color:var(--danger)}

.read{display:flex;flex-direction:column;min-width:0;min-height:0}
.tb{display:flex;flex-wrap:wrap;align-items:center;gap:2px;padding:6px 10px;border-bottom:1px solid var(--line)}
.tb .btn{height:32px;padding:0 10px;border-color:transparent;background:transparent;font-weight:400}
.tb .btn:hover{background:var(--hover)}
.tb .btn.del{color:var(--danger)}
.tb .back{display:none}
.mh{padding:16px 20px 12px;border-bottom:1px solid var(--line)}
.mh h2{margin:0 0 12px;font-size:19px;font-weight:600;line-height:1.3;overflow-wrap:anywhere}
.who2{display:flex;gap:12px;align-items:flex-start}
.who2 .meta{min-width:0;flex:1;font-size:13px}
.who2 .nm{font-weight:600;font-size:14px}
.who2 .ad{color:var(--muted);overflow-wrap:anywhere}
.who2 .dd{flex:none;font-size:12px;color:var(--muted)}
.atts{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.att{display:inline-flex;align-items:center;gap:6px;max-width:260px;height:30px;padding:0 10px;border:1px solid var(--line);border-radius:4px;color:var(--text);text-decoration:none;font-size:13px}
.att:hover{background:var(--hover)}
.att span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.att em{font-style:normal;color:var(--muted);font-size:12px}
.imgs{display:flex;align-items:center;gap:10px;padding:8px 20px;background:var(--sel);font-size:13px}
.imgs button{border:0;background:transparent;color:var(--accent);font-weight:600;padding:0}
.frame{flex:1;width:100%;min-height:0;border:0;background:#fff;color-scheme:light}
.empty{flex:1;display:grid;place-content:center;justify-items:center;gap:10px;color:var(--muted);text-align:center;padding:24px}
.empty svg{opacity:.35}
.empty b{color:var(--text);font-size:16px;font-weight:600}

/* ---------- Novo e-mail ---------- */
.cp{position:fixed;right:24px;bottom:0;z-index:20;width:min(680px,calc(100% - 48px));height:min(640px,calc(100% - 72px));display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-bottom:0;border-radius:8px 8px 0 0;box-shadow:0 -4px 28px rgba(0,0,0,.2)}
.cph{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 6px 0 16px;background:var(--accent);color:#fff;border-radius:7px 7px 0 0;font-weight:600}
.cpf{display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--line);padding:0 14px}
.cpf label{flex:none;width:52px;color:var(--muted);font-size:13px}
.cpf input{flex:1;min-width:0;height:38px;border:0;outline:0;background:transparent}
.cpf .lnk{flex:none;border:0;background:transparent;color:var(--accent);font-size:13px;padding:0 4px}
.cpt{display:flex;gap:2px;padding:6px 10px;border-bottom:1px solid var(--line)}
.cpt .ib{color:var(--text)}
.cpt .ib b,.cpt .ib i,.cpt .ib u{font-size:14px}
.ed{flex:1;overflow:auto;padding:14px 16px;outline:0;overflow-wrap:anywhere}
.ed blockquote{margin:8px 0;padding-left:10px;border-left:2px solid var(--line);color:var(--muted)}
.cpa{display:flex;flex-wrap:wrap;gap:6px;padding:0 14px}
.cpa:not(:empty){padding-top:8px}
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 4px 0 10px;border:1px solid var(--line);border-radius:13px;font-size:12px}
.chip button{display:grid;place-items:center;width:20px;height:20px;border:0;border-radius:50%;background:transparent}
.chip button:hover{background:var(--hover)}
.cpb{display:flex;align-items:center;gap:8px;padding:10px 14px;border-top:1px solid var(--line)}
.cpb .sp{flex:1}
.cperr{padding:0 14px 8px;color:var(--danger);font-size:13px}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);z-index:40;padding:10px 16px;border-radius:6px;background:#242424;color:#fff;box-shadow:0 4px 16px rgba(0,0,0,.3)}

/* ---------- Responsivo ---------- */
@media (max-width:1180px){
  .body{grid-template-columns:200px 320px minmax(0,1fr)}
  .wmail{display:none}
}
@media (max-width:900px){
  .body{grid-template-columns:minmax(0,1fr)}
  .top .menu{display:inline-grid}
  .brand{max-width:120px}
  .folders{position:absolute;top:48px;bottom:0;left:0;z-index:15;width:260px;transform:translateX(-100%);transition:transform .2s;box-shadow:4px 0 20px rgba(0,0,0,.2)}
  .wm.nav-open .folders{transform:none}
  .list,.read{grid-column:1;grid-row:1}
  .wm[data-view=list] .read{display:none}
  .wm[data-view=read] .list{display:none}
  .tb .back{display:inline-flex}
  .cp{right:0;bottom:0;width:100%;height:100%;border-radius:0}
  .cph{border-radius:0}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}