:root{--brand:#1d4ed8;--brand-dark:#0f172a;--accent:#f59e0b;--bg:#f4f6fb;--card:#fff;--text:#0f172a;--muted:#64748b;--line:#e2e8f0;--ok:#16a34a;--bad:#dc2626;--radius:14px;--shadow:0 1px 2px rgba(15,23,42,.06),0 8px 24px rgba(15,23,42,.06)}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}
a{color:var(--brand)}
h1,h2,h3{line-height:1.2;margin:0 0 .5rem}
.muted{color:var(--muted)}.center{text-align:center}
hr{border:0;border-top:1px solid var(--line);margin:1rem 0}
code{background:#eef2f7;padding:2px 6px;border-radius:6px}

/* buttons */
.btn{display:inline-block;background:var(--brand);color:#fff;border:0;border-radius:10px;padding:.65rem 1.1rem;font-weight:600;font-size:.95rem;cursor:pointer;text-decoration:none;font-family:inherit}
.btn:hover{filter:brightness(1.08)}
.btn-sm{padding:.35rem .7rem;font-size:.82rem}
.btn-block{display:block;width:100%;text-align:center}
.btn-ghost{background:transparent;color:inherit;border:1px solid rgba(255,255,255,.35)}
.btn-light{background:#fff;color:var(--brand-dark)}
.btn-danger{background:var(--bad)}.btn-ok{background:var(--ok)}
.btn-outline{background:transparent;color:var(--brand);border:1px solid var(--brand)}

/* forms */
.form label{display:block;font-size:.85rem;font-weight:600;margin-bottom:.8rem;color:#334155}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:.3rem;padding:.65rem .75rem;border:1px solid #cbd5e1;border-radius:10px;font:inherit;background:#fff;color:var(--text)}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid var(--brand);outline-offset:0;border-color:transparent}
.form input[type=color]{padding:2px;height:44px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 1rem}
@media(max-width:640px){.grid2,.grid3{grid-template-columns:1fr}}

/* alerts */
.alert{padding:.75rem 1rem;border-radius:10px;margin-bottom:1rem;font-size:.92rem}
.alert-success{background:#dcfce7;color:#14532d}.alert-error{background:#fee2e2;color:#7f1d1d}

/* auth */
.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1rem;background:radial-gradient(1200px 500px at 10% -10%,#dbe6ff,transparent),var(--bg)}
.auth-card{width:100%;max-width:420px;background:#fff;padding:2rem;border-radius:18px;box-shadow:var(--shadow)}
.auth-logo{display:inline-block;font-weight:800;text-decoration:none;color:var(--brand);margin-bottom:1rem;font-size:1.1rem}

/* app shell */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:1rem;background:var(--brand-dark);color:#fff;padding:.7rem 1.2rem}
.topbar .brand{display:flex;align-items:center;gap:.6rem;font-weight:700;flex:1;min-width:0}
.topbar .brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo{height:34px;width:34px;border-radius:8px;object-fit:cover;background:#fff}
.userbox{display:flex;align-items:center;gap:.7rem;font-size:.9rem}
.menu-btn{display:none;background:none;border:0;color:#fff;font-size:1.4rem;cursor:pointer}
.sidenav{position:fixed;top:56px;left:0;bottom:0;width:220px;background:#fff;border-right:1px solid var(--line);padding:1rem .7rem;overflow:auto}
.sidenav a{display:block;padding:.65rem .9rem;border-radius:10px;color:#334155;text-decoration:none;font-weight:600;font-size:.93rem;margin-bottom:2px}
.sidenav a:hover{background:#f1f5f9}
.sidenav a.active{background:var(--brand);color:#fff}
.content{margin-left:220px;padding:1.5rem;max-width:1200px}
.page-title{font-size:1.5rem;margin-bottom:1.2rem}
@media(max-width:860px){
  .menu-btn{display:block}.uname{display:none}
  .sidenav{transform:translateX(-100%);transition:.2s;z-index:30;box-shadow:var(--shadow)}
  body.nav-open .sidenav{transform:none}
  .content{margin-left:0;padding:1rem}
}
/* parent portal: no sidebar, phone first */
.area-parent .sidenav{display:none}.area-parent .content{margin-left:0;max-width:720px;margin:0 auto}.area-parent .menu-btn{display:none}

/* cards + stats */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:1rem;margin-bottom:1.2rem}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.1rem 1.2rem}
.card h3{font-size:1rem;margin-bottom:.8rem}
.stat .label{font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700}
.stat .value{font-size:1.65rem;font-weight:800;margin-top:.2rem}
.stat{border-top:4px solid var(--brand)}.stat.accent{border-top-color:var(--accent)}.stat.bad{border-top-color:var(--bad)}.stat.ok{border-top-color:var(--ok)}
.two{display:grid;grid-template-columns:2fr 1fr;gap:1rem;margin-bottom:1rem}
@media(max-width:900px){.two{grid-template-columns:1fr}}

/* tables */
.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th{text-align:left;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:.6rem .7rem;border-bottom:2px solid var(--line);white-space:nowrap}
td{padding:.7rem;border-bottom:1px solid var(--line)}
tr:hover td{background:#f8fafc}
.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.74rem;font-weight:700;background:#e2e8f0;color:#334155}
.badge.ok{background:#dcfce7;color:#166534}.badge.bad{background:#fee2e2;color:#991b1b}.badge.warn{background:#fef3c7;color:#92400e}
.toolbar{display:flex;gap:.6rem;flex-wrap:wrap;align-items:center;margin-bottom:1rem}
.toolbar input,.toolbar select{padding:.55rem .7rem;border:1px solid #cbd5e1;border-radius:10px;font:inherit}
.tabs{display:flex;gap:.4rem;margin-bottom:1rem;flex-wrap:wrap}
.tabs a{padding:.45rem .9rem;border-radius:999px;background:#fff;text-decoration:none;font-weight:600;font-size:.88rem;color:#334155;border:1px solid var(--line)}
.tabs a.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.inline-form{display:inline}
.child-card{display:block;text-decoration:none;color:inherit;margin-bottom:.8rem}
.child-card .bal{font-weight:800;font-size:1.2rem}