:root{
  --ink:#1d2733; --muted:#66727f; --line:#dde2e8; --bg:#eef1f4; --panel:#fff;
  --bar:#17212b; --accent:#0b6a8f; --accent-soft:#e2f0f6; --danger:#b3261e; --ok:#1d6b3a;
  --ui:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --read:Georgia,"Iowan Old Style","Times New Roman",serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;font:15px/1.45 var(--ui);color:var(--ink);background:var(--bg)}
a{color:var(--accent)}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.muted{color:var(--muted)}
[hidden]{display:none!important}

/* bovenbalk met tabbladen */
.topbar{display:flex;align-items:flex-end;gap:20px;background:var(--bar);color:#fff;padding:0 16px;min-height:48px}
.brand{font-weight:700;letter-spacing:.2px;padding:13px 0;align-self:center}
.tabs{display:flex;gap:2px;flex:1;overflow-x:auto;align-self:flex-end}
.tab{display:inline-flex;align-items:center;gap:8px;padding:11px 16px;color:#c9d3dd;text-decoration:none;border-radius:8px 8px 0 0;white-space:nowrap}
.tab:hover{background:#243241;color:#fff}
.tab.active{background:var(--bg);color:var(--ink);font-weight:600}
.userbox{display:flex;gap:14px;align-items:center;padding:13px 0;align-self:center;font-size:14px;color:#c9d3dd}
.userbox a{color:#fff}
.badge{font-size:12px;font-weight:600;background:var(--accent);color:#fff;border-radius:10px;padding:0 7px;min-width:20px;text-align:center}
.badge:empty{display:none}

/* e-mailclient-layout */
body.mail{display:flex;flex-direction:column;height:100vh;overflow:hidden}
.app{flex:1;display:grid;grid-template-columns:minmax(320px,400px) 1fr;min-height:0}
.listpane{display:flex;flex-direction:column;min-height:0;background:var(--panel);border-right:1px solid var(--line)}
.toolbar{display:flex;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line)}
.toolbar input{flex:1;min-width:0;padding:7px 10px;border:1px solid var(--line);border-radius:6px;background:#fafbfc}
.chips{display:flex;gap:6px;padding:8px 12px;overflow-x:auto;border-bottom:1px solid var(--line);flex:none}
.chip{display:inline-flex;gap:6px;align-items:center;white-space:nowrap;padding:4px 12px;border:1px solid var(--line);border-radius:16px;background:#fff;cursor:pointer}
.chip:hover{border-color:var(--accent)}
.chip.active{background:var(--accent);border-color:var(--accent);color:#fff}
.chip.active .badge{background:#fff;color:var(--accent)}
.list{flex:1;overflow-y:auto}
.row{position:relative;padding:10px 14px 10px 18px;border-bottom:1px solid var(--line);cursor:pointer}
.row:hover{background:#f6f8fa}
.row.sel{background:var(--accent-soft)}
.row .l1{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.row .src{font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .when{white-space:nowrap}
.row .ttl{margin:2px 0 3px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.row .l3{font-size:12px;color:var(--muted)}
.row.unread::before{content:"";position:absolute;left:6px;top:15px;width:6px;height:6px;border-radius:50%;background:var(--accent)}
.row.unread .ttl{font-weight:650}
.row .pic{margin-left:6px;font-size:12px}
.more{margin:10px 12px}
.list .none{padding:28px 18px;color:var(--muted)}

.reader{overflow-y:auto;background:var(--panel)}
.reader .empty{display:grid;place-items:center;height:100%;color:var(--muted);padding:20px;text-align:center}
.msg{max-width:780px;margin:0 auto;padding:22px 28px 60px}
.msg-tools{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.msg h1{font:700 26px/1.25 var(--read);margin:0 0 12px}
.msg .meta{display:grid;grid-template-columns:auto 1fr;gap:2px 14px;font-size:13px;color:var(--muted);padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:18px}
.msg .meta b{font-weight:600;color:var(--ink)}
.msg .body{font:17px/1.7 var(--read);overflow-wrap:anywhere}
.msg .body img{max-width:100%;height:auto;border-radius:6px;display:block;margin:12px 0}
.msg .body table{display:block;overflow-x:auto;max-width:100%;border-collapse:collapse}
.msg .body td,.msg .body th{border:1px solid var(--line);padding:4px 8px}
.msg .body blockquote{margin:1em 0;padding-left:14px;border-left:3px solid var(--line);color:#3b4856}
.back{display:none}

/* knoppen en formulieren */
.btn{display:inline-block;padding:6px 12px;border:1px solid var(--line);border-radius:6px;background:#fff;cursor:pointer;text-decoration:none;color:var(--ink);font-size:14px}
.btn:hover{border-color:var(--accent)}
.btn[aria-pressed="true"]{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.danger{color:var(--danger)}
.btn.sm{padding:3px 9px;font-size:13px}
.notice{padding:10px 14px;border-radius:6px;margin:0 0 16px}
.notice.ok{background:#e4f4ea;color:var(--ok)}
.notice.err{background:#fbe9e7;color:var(--danger)}
.err-text{color:var(--danger);font-size:12px}
.empty-page{padding:40px;text-align:center}

/* inlog en installatie */
body.auth{display:grid;place-items:center;min-height:100vh}
.auth-box{width:min(380px,92vw);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:26px}
.auth-box h1{margin:0 0 16px;font-size:22px}
.auth-box form{display:grid;gap:12px}

/* beheer */
body.admin{min-height:100vh}
.admin-wrap{max-width:1100px;margin:0 auto;padding:22px 16px 60px}
.admin-wrap h1{margin:0 0 14px;font-size:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:22px}
.card h2{margin:0 0 12px;font-size:17px}
.form{display:grid;gap:12px;max-width:620px}
.form label,.auth-box label{display:grid;gap:4px;font-size:14px}
.form label.check{display:flex;gap:8px;align-items:center}
.form input:not([type=checkbox]),.form select,.form textarea,.auth-box input{padding:7px 10px;border:1px solid var(--line);border-radius:6px;background:#fff;width:100%}
fieldset{border:1px solid var(--line);border-radius:8px;padding:10px 12px;display:grid;gap:6px}
.grid{width:100%;border-collapse:collapse;background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.grid th,.grid td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.grid th{background:#f6f8fa;font-weight:600;font-size:13px}
.grid tr.off td{opacity:.55}
.grid .url{font-size:12px;overflow-wrap:anywhere}
.actions{white-space:nowrap}
.actions .inline,.inline{display:inline}
.admin-wrap table{display:block;overflow-x:auto}

@media (max-width:860px){
  .app{grid-template-columns:1fr;position:relative}
  .reader{display:none}
  .app.reading .reader{display:block}
  .app.reading .listpane{display:none}
  .back{display:inline-block}
  .msg{padding:16px 16px 50px}
  .userbox span{display:none}
}
@media (prefers-reduced-motion:no-preference){
  .row,.chip,.btn{transition:background-color .12s,border-color .12s}
}