:root{
  --bg:#050811;--panel:#09121f;--panel2:#0c1727;--line:rgba(255,255,255,.08);
  --text:#f6f9ff;--muted:#7f8da1;--blue:#28a9ff;--blue2:#245dff;--green:#58d9a8;--danger:#ff7088;
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;font-family:Inter,system-ui,sans-serif;background:var(--bg);color:var(--text)}
button,input,textarea{font:inherit}button{cursor:pointer}
body{background:radial-gradient(circle at 75% 0%,rgba(36,93,255,.16),transparent 30%),var(--bg)}
.hidden{display:none!important}
.app{min-height:100vh;display:grid;grid-template-columns:250px 1fr}
.sidebar{position:sticky;top:0;height:100vh;padding:22px 16px;border-right:1px solid var(--line);background:rgba(5,8,17,.94)}
.brand{display:flex;align-items:center;gap:12px;padding:0 6px 24px}.mark{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#85d6ff,#245dff);color:#06101c;font-weight:900}.brand strong{font:800 18px Manrope}.brand strong span{color:var(--blue)}.brand small{display:block;color:#627287;font-size:8px;letter-spacing:.22em;margin-top:2px}
.compose{width:100%;padding:13px 16px;border:0;border-radius:13px;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-weight:800}
.nav{margin-top:20px;display:grid;gap:5px}.nav button{border:0;background:transparent;color:#8f9bae;padding:11px 12px;border-radius:10px;display:flex;justify-content:space-between}.nav button:hover,.nav button.active{background:#0c1727;color:#fff}.nav b{font-size:10px;color:#52708f}
.account{position:absolute;left:16px;right:16px;bottom:16px;padding:11px;border:1px solid var(--line);border-radius:13px;background:#09111e}.account strong{display:block;font-size:11px}.account span{display:block;font-size:9px;color:#718095;margin-top:3px}
.main{min-width:0}.topbar{height:74px;display:flex;align-items:center;gap:12px;padding:0 24px;border-bottom:1px solid var(--line);background:rgba(5,8,17,.85);backdrop-filter:blur(16px);position:sticky;top:0;z-index:10}.search{flex:1;max-width:680px}.search input{width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:12px;background:#09121f;color:#fff;outline:none}.topbar button{width:40px;height:40px;border:1px solid var(--line);border-radius:11px;background:#0a1320;color:#aab6c7}
.content{padding:22px}.mail-grid{display:grid;grid-template-columns:380px 1fr;min-height:calc(100vh - 118px);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:linear-gradient(180deg,#0a1321,#07101b)}
.list{border-right:1px solid var(--line)}.list-head{padding:18px;border-bottom:1px solid var(--line)}.list-head h2{margin:0;font:700 23px Manrope}.list-head p{margin:5px 0 0;color:#718095;font-size:10px}.empty{padding:40px 20px;text-align:center;color:#718095;font-size:12px}
.mail{display:grid;grid-template-columns:40px 1fr auto;gap:11px;padding:14px 16px;border-bottom:1px solid var(--line);cursor:pointer}.mail:hover,.mail.active{background:#0b1727}.avatar{width:40px;height:40px;border-radius:12px;background:#112139;display:grid;place-items:center;color:#8bcfff;font-weight:800}.meta strong{font-size:12px}.meta span{display:block;margin-top:4px;font-size:11px;color:#c5cfdb}.meta p{margin:5px 0 0;color:#718095;font-size:9px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:230px}.time{color:#627188;font-size:9px}
.reader{padding:28px}.reader-top{display:flex;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}.reader h1{font:700 28px Manrope;margin:0 0 12px}.reader-from{font-size:10px;color:#8492a5}.actions{display:flex;gap:8px}.actions button,.reply button{border:1px solid var(--line);background:#0a1422;color:#c9d3df;border-radius:10px;padding:9px 12px}.body{padding-top:24px;max-width:760px;color:#b7c2cf;font-size:13px;line-height:1.8}.reply{display:flex;gap:8px;margin-top:26px}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.62);display:grid;place-items:center;z-index:50;padding:20px}.composer{width:min(760px,95vw);background:#09121f;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 40px 100px rgba(0,0,0,.6)}.composer-head{display:flex;align-items:center;justify-content:space-between;padding:15px 17px;border-bottom:1px solid var(--line)}.composer-head h3{margin:0;font:700 17px Manrope}.composer-head button{border:0;background:none;color:#aab5c5;font-size:20px}.composer input,.composer textarea{width:100%;padding:13px 16px;background:transparent;border:0;border-bottom:1px solid var(--line);color:#fff;outline:none}.composer textarea{min-height:260px;resize:vertical}.composer-foot{display:flex;justify-content:space-between;gap:10px;padding:14px 16px}.composer-foot .left{display:flex;gap:8px}.btn{border:1px solid var(--line);background:#0d1827;color:#c9d3df;padding:10px 14px;border-radius:10px}.btn.primary{border:0;background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;font-weight:800}
.login{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:min(430px,94vw);padding:34px;border:1px solid var(--line);border-radius:22px;background:#08111e;box-shadow:0 40px 100px rgba(0,0,0,.48)}.login-card .brand{justify-content:center}.login-card h1{text-align:center;margin:0;font:700 30px Manrope}.login-card p{text-align:center;color:#738196;font-size:11px}.field{margin:14px 0}.field label{display:block;color:#76859a;font-size:9px;margin-bottom:6px}.field input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#09131f;color:#fff}.login-card .compose{margin-top:8px}
.toast{position:fixed;right:20px;bottom:20px;background:#0c1727;border:1px solid var(--line);border-radius:12px;padding:12px 14px;font-size:11px;color:#dce5ef;z-index:70}
@media(max-width:850px){.app{grid-template-columns:80px 1fr}.brand>div:last-child,.nav span,.nav b,.account{display:none}.brand{justify-content:center}.compose{font-size:0}.compose:after{content:"+";font-size:22px}.mail-grid{grid-template-columns:1fr}.reader{display:none}}