:root{
  --bg:#f3f4fb;--card:#fff;--ink:#1b1d2e;--muted:#7b7f99;--line:#e8e9f4;--hover:#f6f6fd;
  --brand:#6558f5;--brand2:#9b8cff;--mint:#19c39a;--red:#f0506e;
  --r:20px;--r2:14px;--shadow:0 6px 24px rgba(60,60,120,.07);
}
@media (prefers-color-scheme:dark){
  :root{--bg:#12131d;--card:#1b1d2c;--ink:#ecedf8;--muted:#9296b3;--line:#2a2c40;--hover:#222438;--shadow:0 6px 24px rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Arial,sans-serif}
a{color:var(--brand);text-decoration:none}a:hover{text-decoration:underline}
h1{font-size:26px;margin:0 0 4px;letter-spacing:-.02em}h2{font-size:17px;margin:0 0 14px;letter-spacing:-.01em}
.muted{color:var(--muted)}small,.small{font-size:12px}.hid{display:none!important}
.ico{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* layout */
.app{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.side{position:sticky;top:0;height:100vh;padding:22px 16px;background:linear-gradient(180deg,#5a4bf0 0%,#7466f6 55%,#9486fb 100%);color:#fff;display:flex;flex-direction:column;gap:6px;overflow:auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:#fff;padding:4px 10px 14px;letter-spacing:-.02em}
.brand:hover{text-decoration:none}.brand img.wm{height:26px;width:auto;display:block}
.compose{display:flex;align-items:center;justify-content:center;gap:10px;margin:0 4px 12px;padding:12px 14px;border-radius:14px;background:#fff;color:#4f40e0;font-weight:700;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.compose:hover{text-decoration:none;transform:translateY(-1px)}
.folders{display:flex;flex-direction:column;gap:4px}
.sec{font-size:11px;text-transform:uppercase;letter-spacing:.08em;opacity:.7;padding:12px 14px 4px}
.side .nav{display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:14px;color:rgba(255,255,255,.78);font-weight:600;background:none;border:0;font:inherit;font-weight:600;cursor:pointer;text-align:left;width:100%}
.side .nav:hover{background:rgba(255,255,255,.12);text-decoration:none;color:#fff}
.side .nav.on{background:rgba(255,255,255,.95);color:#4f40e0;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.side .nav span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.bd{background:#ff6b9d;color:#fff;border-radius:999px;font-size:11px;padding:1px 8px;font-weight:800}
.nav.on .bd{background:var(--brand)}
.side .sp{flex:1}
.who{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:16px;background:rgba(255,255,255,.14);font-weight:600;font-size:13px;margin-top:6px}
.who .wt{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ava{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#ff6b9d,#ff9a3d);color:#fff;display:grid;place-items:center;font-weight:800;flex:none}
.ava.lg{width:42px;height:42px;font-size:17px}
.logoutf{margin:0}
.main{padding:28px 32px 70px;max-width:1100px;width:100%}
.topm{display:none}
.scrim{display:none}

/* cards, buttons */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:20px;margin-bottom:18px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:9px 15px;border-radius:999px;border:1px solid var(--line);background:var(--card);color:var(--ink);font:inherit;font-weight:600;cursor:pointer;line-height:1.2}
.btn:hover{text-decoration:none;background:var(--hover)}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}.btn.primary:hover{filter:brightness(1.08);background:var(--brand)}
.btn.danger{color:var(--red)}.btn.ghost{border-color:transparent;background:none;color:var(--brand)}
.btn.wide{width:100%;justify-content:center;padding:13px}
.linkbtn{background:none;border:0;color:var(--brand);font:inherit;font-weight:600;cursor:pointer;padding:4px 6px}
.iconbtn{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:50%;background:none;border:0;color:var(--ink);cursor:pointer}
select,input[type=text],input[type=email],input[type=password],input[type=search],textarea{font:inherit;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:14px;padding:10px 14px;max-width:100%}
select{padding:9px 12px;border-radius:999px}
input:focus,textarea:focus,select:focus{outline:2px solid var(--brand2);outline-offset:0;border-color:var(--brand)}
.flash{padding:12px 16px;border-radius:14px;margin-bottom:16px;font-weight:600}
.flash.ok{background:rgba(25,195,154,.14);color:#0f8a6c}.flash.err{background:rgba(240,80,110,.13);color:var(--red)}
@media (prefers-color-scheme:dark){.flash.ok{color:#42e0bb}}

/* list */
.bar{display:flex;gap:14px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:18px}
.bar p{margin:0}
.search input{width:280px;max-width:100%;padding:11px 18px;border-radius:999px}
.list{padding:8px 0}
.bulkbar{display:flex;align-items:center;gap:12px;padding:6px 18px 10px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.bulkbtns{display:none;gap:8px;flex-wrap:wrap;align-items:center}
.bulkbar.on .bulkbtns{display:flex}
.bulkbar .btn{padding:7px 12px;font-size:14px}
.row{display:flex;align-items:center;gap:6px;padding:0 18px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row:hover{background:var(--hover)}
.rc{display:grid;place-items:center;width:30px;height:48px;cursor:pointer}
.rl{flex:1;min-width:0;display:grid;grid-template-columns:210px 1fr auto;gap:14px;align-items:center;padding:13px 0;color:var(--ink)}
.rl:hover{text-decoration:none}
.rf{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:flex;align-items:center;gap:8px}
.rs{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);display:flex;align-items:center;gap:6px}
.rs .ico{width:15px;height:15px}
.rd{color:var(--muted);font-size:13px;white-space:nowrap}
.row.unread .rf,.row.unread .rs{color:var(--ink);font-weight:700}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none;display:inline-block}
.empty{text-align:center;color:var(--muted);padding:48px 16px}.empty .ico{width:42px;height:42px;opacity:.5}
.pager{display:flex;align-items:center;justify-content:center;gap:16px;margin:6px 0 20px}

/* message */
.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:0 0 12px}
.toolbar.sub{padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px}
.toolbar .sp{flex:1}
.subj{font-size:22px;margin:4px 0 14px;word-break:break-word}
.meta{display:flex;gap:12px;align-items:flex-start;margin-bottom:16px}
.mt{min-width:0;word-break:break-word}
.atts{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 16px}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 13px;border-radius:999px;background:var(--hover);border:1px solid var(--line);color:var(--ink);font-weight:600;max-width:100%}
.chip span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.chip small{color:var(--muted)}
.notice{display:flex;align-items:center;gap:10px;flex-wrap:wrap;background:var(--hover);border-radius:14px;padding:10px 14px;margin-bottom:14px}
.bodyframe{width:100%;border:0;min-height:120px;background:#fff;border-radius:12px}
.plain{word-break:break-word;overflow-wrap:anywhere;line-height:1.6}

/* compose + forms */
.compose-form .fr{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding:4px 0}
.compose-form .fr label{width:100px;color:var(--muted);font-weight:600;flex:none}
.compose-form .fr input{flex:1;border:0;border-radius:0;background:none;padding:10px 4px;min-width:0}
.compose-form .fr input:focus{outline:none}
.ccbtns{display:flex;flex:none}
.compose-form textarea{width:100%;border:0;border-radius:0;background:none;padding:16px 4px;resize:vertical;min-height:260px;line-height:1.55}
.compose-form textarea:focus{outline:none}
.attrow{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:8px 0 14px}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:6px}
.fl{display:block;font-weight:600;margin-bottom:14px}
.fl input,.fl textarea{display:block;width:100%;margin-top:6px;font-weight:400}
.kv{margin:10px 0}.kv dt{font-weight:700;margin-top:10px}.kv dd{margin:2px 0 0;color:var(--muted)}

/* login */
.loginbody{background:linear-gradient(160deg,#5a4bf0 0%,#7466f6 55%,#9486fb 100%);min-height:100vh}
.login{min-height:100vh;display:grid;place-items:center;padding:20px}
.lcard{background:var(--card);color:var(--ink);border-radius:26px;padding:32px 28px;width:100%;max-width:400px;box-shadow:0 24px 60px rgba(30,20,120,.35)}
.lcard h1{margin-top:6px}
.lwm{height:34px;width:auto;background:linear-gradient(135deg,#5a4bf0,#7466f6);padding:10px 14px;border-radius:14px;display:block;box-sizing:content-box}
.lcard label{display:block;font-weight:600;margin-top:14px}
.lcard label input[type=email],.lcard label input[type=password]{display:block;width:100%;margin-top:6px;padding:13px 15px;font-weight:400}
.lcard label.chk{display:flex;align-items:center;gap:10px;font-weight:500;color:var(--muted);margin:14px 0 18px}
.lfoot{text-align:center;color:var(--muted);font-size:13px;margin:18px 0 0}

/* mobile */
@media (max-width:860px){
  .app{display:block}
  .side{position:fixed;left:0;top:0;bottom:0;width:272px;z-index:30;transform:translateX(-102%);transition:transform .22s ease;box-shadow:0 0 40px rgba(0,0,0,.3)}
  .app.open .side{transform:none}
  .app.open .scrim{display:block;position:fixed;inset:0;background:rgba(20,18,50,.45);z-index:20}
  .topm{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:-6px -8px 12px}
  .topm .tt{font-weight:800;font-size:18px;letter-spacing:-.01em}
  .main{padding:max(14px,env(safe-area-inset-top)) 14px 60px}
  h1{font-size:23px}
  .row{padding:0 10px}
  .rl{grid-template-columns:1fr auto;grid-template-areas:"f d" "s s";gap:2px 10px;padding:10px 0}
  .rf{grid-area:f}.rd{grid-area:d}.rs{grid-area:s}
  .card{padding:16px;border-radius:18px}
  .compose-form .fr{flex-wrap:wrap}
  .compose-form .fr label{width:78px}
  .search{width:100%}.search input{width:100%}
  .toolbar .btn span{display:none}
  .toolbar .btn.ghost span,.toolbar.sub .btn span{display:inline}
}