:root{
  --bg:#0f1222;--panel:#171a2e;--panel2:#1e2240;--line:#2a2f55;--text:#eef0ff;--muted:#9aa0c7;
  --accent:#7c6cff;--accent2:#4fd1c5;--danger:#ff6b81;
}
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body{font-family:"Segoe UI",Tahoma,"Noto Sans Arabic",system-ui,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,textarea{font:inherit;color:var(--text)}
[hidden]{display:none!important}

/* Login */
.login{min-height:100%;display:grid;place-items:center;padding:24px;
  background:radial-gradient(900px 500px at 80% -10%,#3b2fb8 0,transparent 60%),radial-gradient(700px 500px at 0% 110%,#0e7c86 0,transparent 55%),var(--bg)}
.login-card{width:min(420px,100%);background:rgba(23,26,46,.8);backdrop-filter:blur(14px);border:1px solid var(--line);border-radius:24px;padding:36px 28px;text-align:center;box-shadow:0 30px 80px rgba(0,0,0,.45)}
.logo{width:72px;height:72px;margin:0 auto 14px;border-radius:20px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.login h1{font-size:30px}
.sub{color:var(--muted);margin:8px 0 26px}
.google-btn{width:100%;display:flex;gap:12px;align-items:center;justify-content:center;background:#fff;color:#222;padding:13px;border-radius:14px;font-weight:600;transition:.2s}
.google-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(255,255,255,.15)}
.hint{font-size:12px;color:var(--muted);margin-top:18px}
.err{color:var(--danger);margin-top:12px;font-size:14px}

/* App layout */
.app{display:grid;grid-template-columns:260px 1fr;height:100dvh}
.sidebar{background:var(--panel);border-inline-end:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px;gap:14px}
.brand{font-size:20px;font-weight:700;display:flex;gap:10px;align-items:center;padding:4px 8px}
.dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.compose{background:linear-gradient(135deg,var(--accent),#5a4be0);padding:12px;border-radius:14px;font-weight:600;box-shadow:0 8px 20px rgba(124,108,255,.35)}
#folders{display:flex;flex-direction:column;gap:4px;flex:1;overflow:auto}
#folders button{text-align:start;padding:11px 14px;border-radius:12px;color:var(--muted);display:flex;justify-content:space-between}
#folders button:hover{background:var(--panel2)}
#folders button.active{background:var(--panel2);color:var(--text)}
#folders b{background:var(--accent);color:#fff;border-radius:99px;font-size:12px;padding:1px 8px;font-weight:600}
#folders b:empty{display:none}
.user{display:flex;gap:10px;align-items:center;padding:10px;border-radius:14px;background:var(--panel2)}
.user img{width:38px;height:38px;border-radius:50%;background:var(--line)}
.user div{flex:1;min-width:0;display:flex;flex-direction:column}
.user strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user small{color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user button{font-size:20px;color:var(--muted)}

.main{display:flex;flex-direction:column;min-width:0;height:100dvh;overflow:hidden}
.top{display:flex;gap:10px;padding:14px 20px;align-items:center}
.top input{flex:1;background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:12px 16px;outline:none}
.top input:focus{border-color:var(--accent)}
.icon-btn{width:44px;height:44px;border-radius:12px;background:var(--panel);border:1px solid var(--line);font-size:18px}
.menu{display:none}

.dash{padding:0 20px 8px}
.hello h2{font-size:22px}
.hello p{color:var(--muted);font-size:14px;margin:2px 0 14px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.stat{border-radius:18px;padding:16px;display:flex;flex-direction:column;gap:6px;border:1px solid var(--line);position:relative;overflow:hidden}
.stat span{color:var(--muted);font-size:13px}
.stat b{font-size:30px}
.s1{background:linear-gradient(135deg,rgba(124,108,255,.35),var(--panel))}
.s2{background:linear-gradient(135deg,rgba(79,209,197,.28),var(--panel))}
.s3{background:linear-gradient(135deg,rgba(255,193,77,.25),var(--panel))}
.s4{background:linear-gradient(135deg,rgba(255,107,129,.25),var(--panel))}

.content{flex:1;display:grid;grid-template-columns:minmax(300px,420px) 1fr;gap:14px;padding:12px 20px 20px;min-height:0}
.list-wrap,.reader{background:var(--panel);border:1px solid var(--line);border-radius:20px;overflow:auto;min-height:0}
.list-wrap h3{padding:16px 18px 6px;font-size:15px;color:var(--muted)}
.list{list-style:none;padding:6px}
.item{display:grid;grid-template-columns:40px 1fr auto;gap:12px;padding:12px;border-radius:14px;cursor:pointer;align-items:center}
.item:hover,.item.sel{background:var(--panel2)}
.av{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:#fff}
.meta{min-width:0}
.from{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.subj{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.snip{font-size:12px;color:#6c72a0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.date{font-size:11px;color:var(--muted)}
.unread .from{font-weight:800}.unread .subj{color:var(--text);font-weight:600}
.unread .date{color:var(--accent2)}
.more{display:block;margin:6px auto 16px;padding:10px 20px;border-radius:12px;background:var(--panel2)}
.skel{height:64px;margin:8px;border-radius:14px;background:linear-gradient(90deg,var(--panel2),var(--line),var(--panel2));background-size:200% 100%;animation:sh 1.2s infinite}
@keyframes sh{to{background-position:-200% 0}}

.reader{padding:0;display:flex;flex-direction:column}
.empty{margin:auto;color:var(--muted)}
.r-head{padding:20px 22px;border-bottom:1px solid var(--line)}
.r-head h2{font-size:20px;margin-bottom:10px}
.r-head p{color:var(--muted);font-size:13px}
.r-actions{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.r-actions button{padding:8px 14px;border-radius:10px;background:var(--panel2);font-size:13px}
.r-actions .del{color:var(--danger)}
.r-body{flex:1;background:#fff;min-height:300px}
.r-body iframe{width:100%;height:100%;border:0;min-height:420px}
.back{display:none}

dialog{margin:auto;border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:20px;padding:22px;width:min(560px,94vw)}
dialog::backdrop{background:rgba(0,0,0,.6);backdrop-filter:blur(3px)}
dialog h3{margin-bottom:14px}
dialog input,dialog textarea{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:12px;margin-bottom:10px;outline:none;resize:vertical}
.row{display:flex;gap:10px;justify-content:flex-end}
.primary{background:var(--accent);padding:10px 22px;border-radius:12px;font-weight:600}
.ghost{padding:10px 18px;border-radius:12px;background:var(--panel2)}
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--panel2);border:1px solid var(--line);padding:12px 20px;border-radius:14px;z-index:99}
.offline{position:fixed;top:0;inset-inline:0;background:#b8860b;text-align:center;padding:6px;font-size:13px;z-index:99}

@media(max-width:900px){
  .app{grid-template-columns:1fr}
  .sidebar{position:fixed;inset-block:0;inset-inline-start:0;width:270px;z-index:50;transform:translateX(100%);transition:.25s}
  .sidebar.open{transform:none}
  .menu{display:block}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat b{font-size:24px}
  .content{grid-template-columns:1fr;padding:10px}
  .reader{display:none;position:fixed;inset:0;z-index:40;border-radius:0}
  .reader.show{display:flex}
  .back{display:inline-block}
  .main{overflow:auto}
  .list-wrap{overflow:visible}
}