:root{
  --bg:#f4f6fb; --card:#ffffff; --ink:#1c2430; --muted:#6b7688;
  --line:#e3e8f0; --brand:#2f6fed; --brand-ink:#ffffff;
  --danger:#e5484d; --ok:#1a7f57; --unread:#eaf1ff;
  --shadow:0 1px 3px rgba(20,30,50,.08),0 6px 20px rgba(20,30,50,.05);
}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 -apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);background:var(--bg)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* top bar */
.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:10px 20px;background:var(--card);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:10}
.brand a{font-weight:700;color:var(--ink);font-size:17px}
.topbar nav{display:flex;align-items:center;gap:16px}
.who{color:var(--muted);font-size:14px}
.tag{background:var(--brand);color:#fff;border-radius:6px;padding:1px 7px;font-size:11px;margin-left:4px}
.inline{display:inline}
.linkbtn{background:none;border:none;color:var(--brand);cursor:pointer;font-size:14px;padding:0}

.wrap{max-width:900px;margin:0 auto;padding:24px 16px}
.muted{color:var(--muted)}
.small{font-size:13px}
h1{font-size:22px;margin:0 0 16px}
h2{font-size:17px;margin:0 0 12px}

/* flashes */
.flash{padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:14px}
.flash.error{background:#fdecec;color:#9b1c1f;border:1px solid #f6c9ca}
.flash.ok{background:#e7f6ee;color:#146c47;border:1px solid #bfe6d0}

/* buttons / inputs */
button,.primary{font:inherit;cursor:pointer;border:1px solid var(--line);
  background:var(--card);color:var(--ink);padding:8px 14px;border-radius:9px}
button:hover{border-color:#c8d2e2}
.primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.primary:hover{filter:brightness(1.05)}
.danger{color:var(--danger);border-color:#f0c4c5}
input,select,textarea{font:inherit;padding:8px 11px;border:1px solid var(--line);
  border-radius:9px;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid #cfe0ff;border-color:var(--brand)}
textarea{width:100%;resize:vertical;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px}

/* login */
.login-card{max-width:360px;margin:8vh auto;background:var(--card);padding:28px;
  border-radius:16px;box-shadow:var(--shadow)}
.login-card h1{text-align:center}
.login-card label{display:block;margin:14px 0;font-size:13px;color:var(--muted)}
.login-card input{width:100%;margin-top:6px}
.login-card .primary{width:100%;margin-top:8px;padding:11px}

/* search hero */
.search-hero{max-width:560px;margin:8vh auto;text-align:center;background:var(--card);
  padding:36px 28px;border-radius:16px;box-shadow:var(--shadow)}
.search-hero h1{font-size:26px}
.bigsearch{display:flex;gap:10px;margin-top:20px}
.bigsearch input{flex:1;padding:13px 15px;font-size:16px}
.bigsearch .primary{padding:13px 22px;font-size:16px}
.notfound{margin-top:18px;padding:12px 14px;border-radius:10px;background:#fdecec;
  color:#9b1c1f;border:1px solid #f6c9ca}

/* mail header row */
.mailhead{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:14px}
.mailbox-id h2{margin:4px 0 0;word-break:break-all}
.back{font-size:14px}
.refresh{display:inline-block;padding:8px 14px;border:1px solid var(--line);border-radius:9px;
  background:var(--card);white-space:nowrap}
.refresh:hover{text-decoration:none;border-color:#c8d2e2}

/* toolbar */
.toolbar{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.toolbar input[type=search]{flex:1;min-width:160px}
.clear{align-self:center;font-size:13px}

/* mail list */
.maillist{list-style:none;margin:0;padding:0;border:1px solid var(--line);
  border-radius:14px;overflow:hidden;background:var(--card);box-shadow:var(--shadow)}
.maillist li{border-bottom:1px solid var(--line)}
.maillist li:last-child{border-bottom:none}
.maillist a{display:block;padding:13px 16px;color:var(--ink)}
.maillist a:hover{background:#f7f9fd;text-decoration:none}
.maillist li.unread{background:var(--unread)}
.maillist li.unread a:hover{background:#e2ecff}
.row1{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted)}
.from{font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.date{white-space:nowrap}
.subject{margin:3px 0;font-weight:600;display:flex;align-items:center;gap:6px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--brand);display:inline-block;flex:none}
.clip{font-weight:400}
.preview{color:var(--muted);font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.empty{text-align:center;padding:40px}

/* pager */
.pager{display:flex;justify-content:space-between;margin:16px 2px}
.pager .disabled{color:#b8c0cd}

/* message */
.message{background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:22px;box-shadow:var(--shadow)}
.msg-subject{font-size:20px;margin:0 0 14px}
.headers{font-size:14px;border-top:1px solid var(--line);padding-top:12px}
.headers>div{display:flex;gap:10px;padding:2px 0}
.headers .k{width:54px;color:var(--muted);flex:none}
.headers .v{word-break:break-word}
.attachments{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.attachments .k{color:var(--muted);font-size:13px}
.attachments ul{margin:6px 0 0;padding-left:18px}
.body{width:100%;min-height:60vh;margin-top:16px;border:1px solid var(--line);
  border-radius:10px;background:#fff}

/* extracted links + copy */
.links{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.links .k{color:var(--muted);font-size:13px}
.links ul{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px;
  max-height:180px;overflow-y:auto}
.links li{display:flex;align-items:center;gap:8px;min-width:0}
.copybtn{flex:none;padding:4px 10px;font-size:12px;border-radius:7px}
.linkurl{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  font-size:13px;font-family:ui-monospace,Menlo,Consolas,monospace}

/* admin */
.panel{background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:20px;margin-bottom:22px;box-shadow:var(--shadow)}
.panelhead{display:flex;align-items:center;justify-content:space-between;gap:12px}
.panelhead h2{margin:0}
.grid td.chk,.grid th.chk{width:28px;text-align:center}
.grid td.expired{color:var(--danger);font-weight:600}
.expform{margin-left:6px;display:inline-flex;gap:4px;vertical-align:middle}
.expform input[type=number]{width:56px;padding:4px 6px}
.expform button{padding:4px 8px;font-size:12px}
.toolbar .grow{flex:1 1 auto}
.grid{width:100%;border-collapse:collapse;font-size:14px}
.grid th,.grid td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
.grid th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
.grid tr.dim{opacity:.5}
.grid td.actions{display:flex;gap:6px;flex-wrap:wrap}
.grid td.actions button{padding:5px 10px;font-size:13px}
.addform,.importopts{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-top:14px}
.importform label.block{display:block;color:var(--muted);font-size:13px;margin-bottom:6px}
.importopts label{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:13px}
code{background:#eef1f7;padding:1px 5px;border-radius:5px;font-size:13px}

/* ---------- single-page app ---------- */
.hidden{display:none !important}
.searchbar{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:14px}
.searchbar #email{flex:0 1 320px;padding:10px 13px;font-size:15px}
.searchbar .grow{flex:1 1 auto}
.searchbar #q{flex:0 1 220px}
.mb-label{color:var(--ink);font-weight:600;word-break:break-all}
.notice{padding:10px 14px;border-radius:10px;margin-bottom:14px;font-size:14px;
  background:#eef2fb;border:1px solid var(--line)}
.notice.error{background:#fdecec;color:#9b1c1f;border-color:#f6c9ca}

.panes{display:grid;grid-template-columns:380px 1fr;gap:16px;align-items:start}
.listpane{border:1px solid var(--line);border-radius:14px;overflow:hidden;
  background:var(--card);box-shadow:var(--shadow);max-height:calc(100vh - 170px);overflow-y:auto}
.readerpane{min-height:60vh}
.placeholder{padding:40px 20px;text-align:center;color:var(--muted)}

.mrow{padding:12px 15px;border-bottom:1px solid var(--line);cursor:pointer}
.mrow:last-of-type{border-bottom:none}
.mrow:hover{background:#f7f9fd}
.mrow.unread{background:var(--unread)}
.mrow.unread:hover{background:#e2ecff}
.mrow.active{background:#e8f0ff;box-shadow:inset 3px 0 0 var(--brand)}
.mrow .subjtxt{overflow:hidden;text-overflow:ellipsis}

.readerpane .message{margin:0}
.readerpane .pager{padding:0 4px}

@media (max-width:820px){
  .panes{grid-template-columns:1fr}
  .listpane{max-height:none}
}
@media (max-width:560px){
  .bigsearch{flex-direction:column}
  .mailhead{flex-direction:column;align-items:stretch}
  .searchbar #email{flex:1 1 100%}
}