/* ---------- base ---------- */
:root{
  --bg:#f4f5f7; --panel:#ffffff; --ink:#1f2430; --muted:#6b7280;
  --line:#e4e7ec; --brand:#2563eb; --danger:#dc2626; --ok:#16a34a; --warn:#b45309;
  --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{
  font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--ink);
}
a{color:var(--brand)}
h1{font-size:1.4rem;margin:.2rem 0}
h2{font-size:1.1rem;margin:1.2rem 0 .4rem}

/* ---------- top bar ---------- */
.topbar{
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;
  background:var(--panel);border-bottom:1px solid var(--line);
  padding:.6rem 1rem;position:sticky;top:0;z-index:20;
}
.brand{font-weight:700;text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:.5rem}
.brand-mark{background:var(--brand);color:#fff;border-radius:6px;padding:.1rem .4rem;font-size:.8rem}
.mainnav{display:flex;gap:.25rem;flex-wrap:wrap;margin-left:auto}
.mainnav a{
  text-decoration:none;color:var(--muted);padding:.4rem .7rem;border-radius:8px;font-weight:500;
}
.mainnav a:hover{background:var(--bg);color:var(--ink)}
.mainnav a.active{background:var(--brand);color:#fff}
.mainnav a.logout{color:var(--danger)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;font-size:1.1rem;padding:.2rem .6rem}

@media (max-width:760px){
  .nav-toggle{display:block}
  .mainnav{display:none;width:100%;flex-direction:column}
  body.nav-open .mainnav{display:flex}
}

/* ---------- layout ---------- */
.page{max-width:1180px;margin:0 auto;padding:1.2rem 1rem 3rem}
.stack{display:flex;flex-direction:column;gap:.6rem}
.stack.narrow{max-width:720px}
.row-between{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap}
.foot{text-align:center;color:var(--muted);font-size:.85rem;padding:1.5rem}

/* ---------- buttons ---------- */
.btn{
  display:inline-block;border:1px solid var(--line);background:var(--panel);color:var(--ink);
  padding:.5rem .9rem;border-radius:8px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;
}
.btn:hover{border-color:#c9ced6}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:#1d4ed8}
.btn.small{padding:.35rem .6rem;font-size:.85rem}
.btn:disabled{opacity:.55;cursor:default}
.btn-group{display:flex;gap:.4rem;flex-wrap:wrap}
.linklike{background:none;border:none;color:var(--brand);cursor:pointer;font:inherit;padding:0}
.linklike.danger{color:var(--danger)}

/* ---------- cards ---------- */
.cards{display:flex;gap:.8rem;flex-wrap:wrap;margin:.4rem 0}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:.9rem 1.1rem;min-width:150px}
.card-k{color:var(--muted);font-size:.8rem}
.card-v{font-size:1.4rem;font-weight:700}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
table.grid{width:100%;border-collapse:collapse;min-width:520px}
table.grid th,table.grid td{padding:.6rem .8rem;text-align:left;border-bottom:1px solid var(--line)}
table.grid th{font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
table.grid .num{text-align:right}
table.grid tr:last-child td{border-bottom:none}
.actions{display:flex;gap:.8rem}
.pill{font-size:.75rem;padding:.15rem .5rem;border-radius:999px;background:var(--bg);text-transform:capitalize}
.pill-paid{background:#dcfce7;color:#166534}
.pill-sent{background:#dbeafe;color:#1e40af}
.pill-draft{background:#f3f4f6;color:#4b5563}

/* ---------- forms ---------- */
label{display:flex;flex-direction:column;gap:.25rem;font-size:.85rem;color:var(--muted);font-weight:600}
label.inline,label.check{flex-direction:row;align-items:center;gap:.4rem;color:var(--ink)}
input,select,textarea{
  font:inherit;color:var(--ink);background:#fff;border:1px solid #cfd4dc;border-radius:8px;padding:.5rem .6rem;width:100%;
}
input[type=color]{padding:.2rem;height:2.4rem}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:1px;border-color:var(--brand)}
textarea{resize:vertical}
fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:1rem;margin:0 0 1rem;background:var(--panel)}
legend{font-weight:700;color:var(--ink);padding:0 .4rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}
.form-grid .col-2{grid-column:1/-1}
@media (max-width:620px){.form-grid{grid-template-columns:1fr}}
.form-grid.narrow{max-width:none}
.thumb{max-height:70px;border:1px solid var(--line);border-radius:6px;background:#fff;padding:4px;display:block;margin-bottom:.4rem}

/* ---------- alerts ---------- */
.alert{padding:.6rem .8rem;border-radius:8px;font-size:.9rem;margin:.3rem 0}
.alert.ok{background:#dcfce7;color:#166534}
.alert.error{background:#fee2e2;color:#991b1b}
.alert.warn{background:#fef3c7;color:#92400e}

/* ---------- auth ---------- */
.auth-body{display:flex;min-height:100vh;align-items:center;justify-content:center;padding:1rem}
.auth-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.6rem;width:100%;max-width:360px}
.auth-card h1{font-size:1.2rem;text-align:center;margin-bottom:1rem}
.auth-card form{display:flex;flex-direction:column;gap:.8rem}
.muted{color:var(--muted)}

.searchbar{display:flex;gap:.5rem;max-width:420px}
.searchbar input{flex:1}