:root{
  --bg:#f4f6fb;--surface:#fff;--surface-2:#f8fafd;--text:#18202f;--muted:#667085;--line:#e3e8f1;
  --primary:#1b6cff;--primary-soft:#e8f0ff;--primary-ink:#fff;--danger:#d92d20;--danger-soft:#fff0ee;
  --success:#12805c;--success-soft:#e5f6ef;--warn:#b54708;--warn-soft:#fff4e5;
  --radius:14px;--shadow:0 1px 2px rgba(16,24,40,.05),0 6px 20px rgba(16,24,40,.06);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#0d1320;--surface:#151d2e;--surface-2:#1b2539;--text:#e8edf6;--muted:#97a3ba;--line:#26324a;
    --primary:#5b9bff;--primary-soft:#1d2d4f;--primary-ink:#06101f;--danger:#ff7066;--danger-soft:#3a1d1f;
    --success:#47c89a;--success-soft:#143328;--warn:#f5a54a;--warn-soft:#3a2a14;--shadow:0 6px 24px rgba(0,0,0,.35)}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:15px/1.55 var(--font);color:var(--text);background:var(--bg);min-height:100vh}
a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .4em;line-height:1.25;font-weight:700;letter-spacing:-.01em}
h1{font-size:1.65rem}h2{font-size:1.25rem}h3{font-size:1.05rem}
p{margin:.4em 0}
.muted{color:var(--muted)}.small{font-size:.86rem}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.hidden,[hidden]{display:none!important}
.container{max-width:1240px;margin:0 auto;padding:24px 20px 60px}

/* top bar */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:18px;padding:0 max(20px,calc((100vw - 1240px)/2 + 20px));
  height:60px;background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--text);letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand-mark{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;color:#fff;font-size:.8rem;
  background:linear-gradient(135deg,#1b6cff,#7aa9ff)}
.topnav{display:flex;gap:4px;margin-left:8px}
.topnav a{padding:7px 12px;border-radius:9px;color:var(--muted);font-weight:600}
.topnav a:hover,.topnav a.active{background:var(--primary-soft);color:var(--primary);text-decoration:none}
.spacer{flex:1}
.usermenu{display:flex;align-items:center;gap:10px}
.usermenu form{margin:0}

/* components */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}
.card.flat{box-shadow:none}
.card+.card,.stack>*+*{margin-top:16px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid.tight{grid-template-columns:repeat(auto-fill,minmax(190px,1fr))}
.grid.wide{grid-template-columns:repeat(auto-fill,minmax(340px,1fr))}
.row{display:flex;align-items:center;gap:12px}.row.wrap{flex-wrap:wrap}.row.between{justify-content:space-between}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:40px;padding:8px 16px;border-radius:10px;border:1px solid transparent;
  background:var(--primary);color:var(--primary-ink);font:inherit;font-weight:600;cursor:pointer;text-decoration:none;transition:filter .15s,transform .05s}
.btn:hover{filter:brightness(1.07);text-decoration:none}.btn:active{transform:translateY(1px)}
.btn.secondary{background:var(--surface-2);color:var(--text);border-color:var(--line)}
.btn.ghost{background:transparent;color:var(--primary);border-color:transparent}
.btn.danger{background:var(--danger-soft);color:var(--danger);border-color:color-mix(in srgb,var(--danger) 30%,transparent)}
.btn.small{min-height:32px;padding:4px 12px;font-size:.88rem;border-radius:8px}
.btn[disabled]{opacity:.55;cursor:not-allowed}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.actions form{margin:0}
input,select,textarea{width:100%;min-height:42px;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--text);font:inherit}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--primary) 45%,transparent);border-color:var(--primary)}
label{display:block;font-weight:600;font-size:.9rem;margin:0 0 5px}
.field{margin-bottom:14px}
.form-grid{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));align-items:end}
.badge{display:inline-flex;align-items:center;padding:2px 9px;border-radius:99px;background:var(--primary-soft);color:var(--primary);font-size:.76rem;font-weight:700}
.badge.admin{background:var(--warn-soft);color:var(--warn)}
.badge.ok{background:var(--success-soft);color:var(--success)}
.badge.bad{background:var(--danger-soft);color:var(--danger)}
.avatar{width:48px;height:48px;border-radius:14px;object-fit:cover;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:800;flex:none}
.avatar.small{width:34px;height:34px;border-radius:10px;font-size:.85rem}
.stat{display:flex;flex-direction:column;gap:2px}.stat strong{font-size:1.7rem;line-height:1.1}.stat span{color:var(--muted);font-size:.86rem}
.flash{padding:12px 16px;border-radius:12px;margin-bottom:16px;border:1px solid var(--line);background:var(--surface)}
.flash.success{background:var(--success-soft);color:var(--success);border-color:transparent}
.flash.error{background:var(--danger-soft);color:var(--danger);border-color:transparent}
.banner{background:var(--warn-soft);color:var(--warn);padding:10px 20px;text-align:center;font-weight:600}
.banner a{color:inherit;text-decoration:underline}
.link-box{display:flex;gap:8px}.link-box input{direction:ltr;font-family:ui-monospace,Menlo,monospace;font-size:.85rem}
.hero{background:linear-gradient(135deg,#0f55d6,#4d8dfa);color:#fff;border:0}.hero .muted{color:#dbe8ff}
.hero input{background:rgba(255,255,255,.95);color:#18202f;border:0}
.hero .btn.secondary{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.3)}
.empty{text-align:center;padding:42px 20px;color:var(--muted)}
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse}th,td{padding:11px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
.code{background:var(--surface-2);border:1px solid var(--line);border-radius:10px;padding:12px;overflow:auto;max-height:340px;font:12.5px/1.5 ui-monospace,Menlo,monospace;white-space:pre-wrap;word-break:break-word}

/* login */
.login-wrap{min-height:calc(100vh - 60px);display:grid;place-items:center;padding:20px}
.login-card{width:100%;max-width:400px}

/* profile header and tabs */
.profile-head{display:flex;align-items:center;gap:16px;margin-bottom:6px;flex-wrap:wrap}
.tabs{display:flex;gap:6px;overflow-x:auto;padding:6px 0 14px;scrollbar-width:thin}
.tabs a{white-space:nowrap;padding:8px 15px;border-radius:10px;color:var(--text);background:var(--surface);border:1px solid var(--line);font-weight:600}
.tabs a:hover{text-decoration:none;border-color:var(--primary)}
.tabs a.active{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}

/* sync panel */
.sync{margin-top:14px;padding:14px;border-radius:12px;background:var(--surface-2);border:1px solid var(--line)}
.sync-top{display:flex;align-items:center;gap:12px}
.sync-title{flex:1;min-width:0;display:flex;flex-direction:column}
.sync-percent{font-size:1.15rem;font-variant-numeric:tabular-nums}
.spinner{width:22px;height:22px;border:3px solid var(--line);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;flex:none}
.spinner.idle{animation:none;border-top-color:var(--line)}
@keyframes spin{to{transform:rotate(360deg)}}
.bar{height:10px;background:var(--line);border-radius:99px;overflow:hidden;margin:10px 0}
.bar>span{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,var(--primary),#7aa9ff);transition:width .4s ease}
.bar.small{height:6px;margin:0}
.bar.done>span{background:var(--success)}.bar.fail>span{background:var(--danger)}
.modules{display:grid;gap:8px;margin-top:8px}
.module{display:grid;grid-template-columns:78px 1fr minmax(70px,auto);gap:10px;align-items:center;font-size:.86rem}
.module-name{font-weight:600}.module-count{text-align:right;color:var(--muted);font-variant-numeric:tabular-nums}
.module-detail{grid-column:1/-1;color:var(--muted);font-size:.8rem;margin-top:-4px;padding-left:88px}

/* gmail */
.mail-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:18px;align-items:start}
.mail-side{position:sticky;top:76px;max-height:calc(100vh - 96px);overflow:auto;padding:12px}
.side-group{margin:12px 0 4px;padding:0 10px;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.side-link{display:flex;justify-content:space-between;gap:8px;padding:8px 10px;border-radius:9px;color:var(--text);font-weight:500}
.side-link:hover{background:var(--surface-2);text-decoration:none}
.side-link.active{background:var(--primary-soft);color:var(--primary);font-weight:700}
.side-link .count{color:var(--muted);font-variant-numeric:tabular-nums;font-size:.85rem}
.side-link.unread .count{color:var(--primary);font-weight:700}
.search{display:flex;gap:8px;margin-bottom:12px}
.mail-list{padding:0;overflow:hidden}
.mail-row{display:grid;grid-template-columns:200px minmax(0,1fr) auto;gap:14px;align-items:center;padding:11px 16px;border-bottom:1px solid var(--line);color:var(--text)}
.mail-row:last-child{border-bottom:0}.mail-row:hover{background:var(--surface-2);text-decoration:none}
.mail-row.unread{font-weight:700}.mail-row.unread .mail-snippet{font-weight:400}
.mail-from{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-body{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mail-snippet{color:var(--muted);font-weight:400}
.mail-meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.85rem;white-space:nowrap;font-weight:400}
.chip{display:inline-block;padding:0 7px;margin-right:6px;border-radius:6px;background:var(--primary-soft);color:var(--primary);font-size:.72rem;font-weight:700;vertical-align:1px}
.pager{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:14px}
.thread-subject{margin-bottom:14px}
.msg{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;overflow:hidden}
.msg>summary{display:flex;align-items:center;gap:12px;padding:13px 16px;cursor:pointer;list-style:none}
.msg>summary::-webkit-details-marker{display:none}
.msg[open]>summary{border-bottom:1px solid var(--line);background:var(--surface-2)}
.msg-body{padding:16px}
.msg-headers{display:grid;grid-template-columns:70px 1fr;gap:3px 10px;font-size:.88rem;margin-bottom:14px;overflow-wrap:anywhere}
.msg-headers dt{color:var(--muted)}.msg-headers dd{margin:0}
.email-frame{width:100%;min-height:220px;border:1px solid var(--line);border-radius:12px;background:#fff;display:block}
.plain{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.7;margin:0;font:inherit}
.files{display:grid;gap:12px;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));margin:14px 0}
.file{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--surface);display:flex;flex-direction:column}
.file .thumb{aspect-ratio:4/3;background:var(--surface-2);display:grid;place-items:center;overflow:hidden;color:var(--muted);font-weight:800;font-size:1.3rem}
.file .thumb img,.file .thumb video{width:100%;height:100%;object-fit:cover}
.file audio{width:100%}
.file .meta{padding:10px 12px;display:flex;flex-direction:column;gap:2px;min-width:0}
.file .name{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.file .links{display:flex;gap:10px;padding:0 12px 10px;font-size:.88rem}
.chips{display:flex;gap:6px;flex-wrap:wrap}.pill{padding:6px 12px;border-radius:99px;background:var(--surface);border:1px solid var(--line);color:var(--text);font-weight:600;font-size:.88rem}
.pill:hover{text-decoration:none;border-color:var(--primary)}.pill.active{background:var(--primary);color:var(--primary-ink);border-color:var(--primary)}
.crumbs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px;font-weight:600}
.media-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;background:var(--surface-2);margin-bottom:10px;display:block}
.contact-photo{width:60px;height:60px;border-radius:16px;object-fit:cover;background:var(--primary-soft);flex:none;display:grid;place-items:center;color:var(--primary);font-weight:800}
.kv{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;margin-top:12px;font-size:.9rem;overflow-wrap:anywhere}.kv dt{color:var(--muted)}.kv dd{margin:0}

@media (max-width:900px){
  .mail-layout{grid-template-columns:1fr}
  .mail-side{position:static;max-height:none;display:flex;gap:6px;overflow-x:auto;padding:8px}
  .mail-side .side-group{display:none}.side-link{white-space:nowrap}.mail-side-block{display:contents}
}
@media (max-width:640px){
  .container{padding:16px 12px 48px}.topbar{gap:8px;padding:0 12px}.topnav a{padding:6px 9px}.usermenu .muted{display:none}
  .card{padding:16px}.grid,.grid.wide{grid-template-columns:1fr}.grid.tight{grid-template-columns:repeat(2,1fr)}
  .mail-row{grid-template-columns:1fr auto;gap:4px 10px}.mail-from{grid-column:1}.mail-meta{grid-column:2;grid-row:1}.mail-body{grid-column:1/-1}
  .link-box{flex-direction:column}.search{flex-direction:column}.btn.block-mobile{width:100%}
  .module{grid-template-columns:64px 1fr auto}.module-detail{padding-left:0}
  .msg-headers{grid-template-columns:60px 1fr}h1{font-size:1.35rem}
}