:root {
  --bg: #f5f7fa;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #0ea5a4;
  --accent-dark: #0c8f8e;
  --danger: #e11d48;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Auth pages (login / register / forgot) */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 36px 32px; box-shadow: var(--shadow);
}
.auth-logo { text-align: center; margin-bottom: 6px; }
.auth-logo h1 { font-size: 22px; color: var(--accent-dark); letter-spacing: .3px; }
.auth-logo p { color: var(--muted); font-size: 13px; margin-top: 2px; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 6px; }
.field input {
  width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 14px; background: #fff; transition: border-color .15s;
}
.field input:focus { outline: none; border-color: var(--accent); }
.btn {
  display: inline-block; padding: 11px 20px; border: none; border-radius: 10px; cursor: pointer;
  font-size: 14px; font-weight: 600; transition: background .15s;
}
.btn-primary { background: var(--accent); color: #fff; width: 100%; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost { background: transparent; color: var(--accent); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.auth-alt { text-align: center; font-size: 13px; color: var(--muted); margin-top: 18px; }
.alert { padding: 11px 14px; border-radius: 10px; font-size: 13px; margin-bottom: 16px; }
.alert-error { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-ok { background: #f0fdfa; color: #0f766e; border: 1px solid #99f6e4; }

/* Portal */
.topbar {
  background: var(--card); border-bottom: 1px solid var(--border); padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; height: 60px; position: sticky; top: 0; z-index: 10;
}
.topbar .brand { font-weight: 700; color: var(--accent-dark); font-size: 16px; }
.topbar nav a { margin-left: 18px; font-size: 14px; color: var(--muted); }
.topbar nav a:hover { color: var(--accent); text-decoration: none; }
.container { max-width: 1080px; margin: 0 auto; padding: 32px 24px; }
.page-title { font-size: 24px; margin-bottom: 6px; }
.page-sub { color: var(--muted); font-size: 14px; margin-bottom: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 24px;
  box-shadow: var(--shadow); display: block; color: inherit;
}
.card:hover { border-color: var(--accent); text-decoration: none; transform: translateY(-1px); }
.card .icon { font-size: 30px; margin-bottom: 10px; }
.card h2 { font-size: 17px; margin-bottom: 4px; }
.card p { color: var(--muted); font-size: 13px; }
.card .cta { margin-top: 14px; display: inline-block; color: var(--accent); font-weight: 600; font-size: 13px; }

/* Tables / lists */
.table-wrap { background: var(--card); border: 1px solid var(--border); border-radius: 14px; overflow: hidden; box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 12px 16px; background: #f8fafc; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; border-bottom: 1px solid var(--border); }
td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
.badge { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; }
.badge-active { background: #dcfce7; color: #166534; }
.badge-disabled { background: #fee2e2; color: #991b1b; }
.badge-pending { background: #fef9c3; color: #854d0e; }
.search { width: 100%; max-width: 380px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; font-size: 14px; margin-bottom: 18px; }
.search:focus { outline: none; border-color: var(--accent); }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 8px; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger-outline { background: transparent; border: 1px solid var(--danger); color: var(--danger); }
.empty { padding: 40px; text-align: center; color: var(--muted); font-size: 14px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row .full { grid-column: 1 / -1; }
.pagination { display: flex; gap: 8px; align-items: center; margin-top: 18px; flex-wrap: wrap; }
.pagination .on { background: var(--accent); color: #fff; border-color: var(--accent); }
@media (max-width: 640px) { .form-row { grid-template-columns: 1fr; } }