:root{
  --bg:#f4f6fa; --panel:#ffffff; --ink:#1b2333; --muted:#6b7688; --line:#e3e8f0;
  --brand:#2f6fed; --brand-dk:#2358c9; --sidebar:#101827; --sidebar-2:#1b2740;
  --green:#12855f; --amber:#b76a00; --red:#c62828; --grey:#5c6b82; --purple:#6d47d9;
  --radius:10px; --shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.1);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{margin:0 0 .5rem;line-height:1.25}
h1{font-size:1.5rem}h2{font-size:1.2rem}h3{font-size:1rem}

/* layout */
.sidebar{position:fixed;inset:0 auto 0 0;width:236px;background:var(--sidebar);color:#c7d0e0;
  display:flex;flex-direction:column;padding:18px 14px;gap:6px;overflow-y:auto}
.sidebar .logo{display:flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:1.05rem;
  padding:6px 8px 16px}
.sidebar .logo .dot{width:26px;height:26px;border-radius:8px;background:linear-gradient(135deg,#4f8bff,#7b5cff);
  display:grid;place-items:center;font-size:14px}
.sidebar a{display:flex;align-items:center;gap:10px;color:#c7d0e0;padding:9px 11px;border-radius:8px;
  font-weight:500;font-size:.94rem}
.sidebar a:hover{background:var(--sidebar-2);text-decoration:none;color:#fff}
.sidebar a.on{background:var(--brand);color:#fff}
.sidebar .sep{height:1px;background:#243149;margin:10px 4px}
.sidebar .who{margin-top:auto;padding:12px 10px;border-top:1px solid #243149;font-size:.85rem;color:#8b97ad}
.sidebar .who strong{display:block;color:#fff;font-size:.9rem}
.main{margin-left:236px;min-height:100vh;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:12px 26px;display:flex;
  align-items:center;justify-content:space-between;gap:16px;position:sticky;top:0;z-index:5}
.content{padding:24px 26px 60px;max-width:1180px;width:100%}
body.portal .main{margin-left:0}
.portal-top{background:var(--sidebar);color:#fff;border-bottom:none}
.portal-top a{color:#cfd8e8}
.portal-top .logo{display:flex;align-items:center;gap:9px;font-weight:700}
.portal-content{max-width:900px;margin:0 auto}

/* cards + grid */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:18px;margin-bottom:18px}
.grid{display:grid;gap:16px}
.grid.c2{grid-template-columns:1fr 1fr}
.grid.c4{grid-template-columns:repeat(4,1fr)}
/* narrow form column + wide content column, for pages with a table beside a form */
.grid.side{grid-template-columns:minmax(0,250px) minmax(0,1fr);align-items:start}
.grid.side .card{margin-bottom:0}
@media(max-width:1100px){.grid.side{grid-template-columns:1fr}}
@media(max-width:900px){.grid.c2,.grid.c4{grid-template-columns:1fr}.sidebar{display:none}.main{margin-left:0}}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;box-shadow:var(--shadow)}
.stat .n{font-size:1.7rem;font-weight:700}
.stat .l{color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.04em}
.stat.warn .n{color:var(--amber)} .stat.bad .n{color:var(--red)} .stat.good .n{color:var(--green)}

/* tables */
table{width:100%;border-collapse:collapse;background:#fff}
th{text-align:left;font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);
  padding:10px 12px;border-bottom:1px solid var(--line);background:#fafbfe}
td{padding:11px 12px;border-bottom:1px solid var(--line);vertical-align:middle;overflow-wrap:anywhere}
td.nw{white-space:nowrap}
tr:last-child td{border-bottom:none}
tr:hover td{background:#f8faff}
.tablewrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow-x:auto;box-shadow:var(--shadow)}

/* badges */
.badge{display:inline-block;padding:2px 9px;border-radius:20px;font-size:.75rem;font-weight:600;
  border:1px solid transparent;white-space:nowrap}
.st-open{background:#e7f0ff;color:#1d4ed8;border-color:#cfe0ff}
.st-pending{background:#fff4e0;color:#9a5b00;border-color:#ffe0b2}
.st-resolved{background:#e3f7ee;color:#0f7a52;border-color:#c6eedd}
.st-closed{background:#eef1f6;color:#5c6b82;border-color:#dfe4ec}
.pr-urgent{background:#fde7e7;color:#b3261e;border-color:#f8cfcd}
.pr-high{background:#fff0e6;color:#b25e00;border-color:#ffdcc2}
.pr-normal{background:#eef1f6;color:#43506b;border-color:#dfe4ec}
.pr-low{background:#f1f5f9;color:#64748b;border-color:#e2e8f0}
.pill{display:inline-block;padding:1px 8px;border-radius:6px;background:#eef1f6;color:#43506b;font-size:.75rem}
.overdue{color:var(--red);font-weight:600}

/* forms + buttons */
input,select,textarea{font:inherit;color:inherit;background:#fff;border:1px solid #d5dbe6;
  border-radius:8px;padding:9px 11px;width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd2ff;border-color:var(--brand)}
textarea{min-height:110px;resize:vertical;font-family:inherit}
label{display:block;font-size:.82rem;font-weight:600;color:#42506b;margin:0 0 5px}
.field{margin-bottom:14px}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:170px}
.btn{display:inline-block;background:var(--brand);color:#fff;border:1px solid var(--brand);
  padding:9px 16px;border-radius:8px;font-weight:600;cursor:pointer;font-size:.92rem}
.btn:hover{background:var(--brand-dk);text-decoration:none;color:#fff}
.btn.sec{background:#fff;color:#33415c;border-color:#d5dbe6}
.btn.sec:hover{background:#f4f6fa;color:#33415c}
.btn.danger{background:#fff;color:var(--red);border-color:#f0c7c7}
.btn.sm{padding:6px 11px;font-size:.84rem}
.btn-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}

/* thread */
.thread{display:flex;flex-direction:column;gap:14px}
.msg{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden}
.msg .head{display:flex;justify-content:space-between;gap:10px;align-items:center;
  padding:10px 14px;background:#fafbfe;border-bottom:1px solid var(--line);font-size:.86rem}
.msg .who{font-weight:600}
.msg .body{padding:14px;white-space:normal;overflow-wrap:anywhere}
.msg.customer .head{background:#eef4ff}
.msg.note .head{background:#fff8e1}
.msg.note{border-color:#ffe1a1}
.msg .meta{color:var(--muted);font-size:.8rem}
.avatar{width:30px;height:30px;border-radius:50%;display:inline-grid;place-items:center;color:#fff;
  font-weight:700;font-size:.8rem;flex:0 0 auto}
.who-row{display:flex;align-items:center;gap:9px}

/* ticket detail layout */
.detail{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:18px;align-items:start}
@media(max-width:1000px){.detail{grid-template-columns:1fr}}
.tabs{display:flex;gap:6px;margin-bottom:10px}
.tabs button{background:#fff;border:1px solid #d5dbe6;border-radius:8px 8px 0 0;padding:8px 15px;
  cursor:pointer;font-weight:600;font-size:.9rem;color:#5c6b82}
.tabs button.on{background:var(--brand);border-color:var(--brand);color:#fff}
.hidden{display:none}
.kv{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed var(--line);font-size:.9rem}
.kv:last-child{border-bottom:none}
.kv .k{color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.empty{padding:34px;text-align:center;color:var(--muted)}
.pagehead{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:18px;flex-wrap:wrap}
.filters{display:flex;gap:8px;flex-wrap:wrap;align-items:end;background:#fff;border:1px solid var(--line);
  padding:13px;border-radius:var(--radius);margin-bottom:16px;box-shadow:var(--shadow)}
.filters .f{min-width:130px}
.filters .f.grow{flex:1;min-width:190px}
.alert{padding:10px 14px;border-radius:8px;margin-bottom:16px;font-size:.9rem}
.alert.err{background:#fdecec;color:#a5211b;border:1px solid #f6cfcd}
.alert.ok{background:#e6f7ef;color:#0f7a52;border:1px solid #c6eedd}
.tagline{color:var(--muted);font-size:.88rem}
.authcard{max-width:400px;margin:8vh auto}
.att{display:inline-flex;align-items:center;gap:6px;background:#f1f5fb;border:1px solid var(--line);
  border-radius:8px;padding:5px 10px;font-size:.85rem;margin:0 6px 6px 0}