:root {
  --primary: #dc2626;
  --primary-dark: #991b1b;
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #e5e7eb;
  --ok: #16a34a;
  --warn: #d97706;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); }
.topbar {
  background: var(--primary-dark);
  color: white;
  padding: .8rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topbar a { color: white; text-decoration: none; margin-left: 1rem; }
.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
h1, h2 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: .55rem .7rem; border-bottom: 1px solid var(--border); font-size: .92rem; }
th { background: #fafafa; color: var(--muted); font-weight: 600; }
.btn {
  display: inline-block;
  background: var(--primary);
  color: white;
  border: none;
  padding: .5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  text-decoration: none;
  font-size: .9rem;
}
.btn.secondary { background: #6b7280; }
.btn.small { padding: .3rem .6rem; font-size: .8rem; }
.btn:disabled { background: #ccc; cursor: default; }
input, select {
  width: 100%;
  padding: .5rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: .9rem;
  margin-bottom: .9rem;
}
label { display: block; font-weight: 600; font-size: .85rem; margin-bottom: .3rem; }
.badge { padding: .15rem .55rem; border-radius: 999px; font-size: .75rem; font-weight: 600; }
.badge.pendiente { background: #fde68a; color: #92400e; }
.badge.en_atencion { background: #bfdbfe; color: #1e3a8a; }
.badge.resuelta_ok { background: #bbf7d0; color: #14532d; }
.badge.resuelta_ayuda { background: #fecaca; color: #7f1d1d; }
.badge.activo { background: #bbf7d0; color: #14532d; }
.badge.inactivo, .badge.suspendido { background: #e5e7eb; color: #374151; }
.flash { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: .9rem; }
.flash.success { background: #dcfce7; color: #166534; }
.flash.error { background: #fee2e2; color: #991b1b; }
.nav-tabs { display: flex; gap: .5rem; margin-bottom: 1.25rem; }
.nav-tabs a {
  text-decoration: none;
  padding: .5rem 1rem;
  border-radius: 6px;
  color: var(--text);
  background: var(--card);
  border: 1px solid var(--border);
  font-size: .9rem;
}
.nav-tabs a.active { background: var(--primary); color: white; border-color: var(--primary); }
.form-row { display: flex; gap: 1rem; }
.form-row > div { flex: 1; }
.text-muted { color: var(--muted); font-size: .85rem; }