:root {
  --bg: #f4f4f1;
  --surface: #ffffff;
  --border: #e3e1d9;
  --text: #2c2c2a;
  --text-soft: #6b6a64;
  --primary: #185fa5;
  --primary-soft: #e6f1fb;
  --danger: #a32d2d;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(0,0,0,.04);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
a { color: var(--primary); }

/* --- Barra superior (layout único) --- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 12px 20px;
}
.topbar .brand { font-weight: 500; font-size: 16px; }
.topbar .user { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-soft); }

/* --- Aviso de suplantación --- */
.imp-banner {
  background: #fff4da; color: #633806; border-bottom: 1px solid #f0c97a;
  padding: 8px 20px; font-size: 14px; display: none;
  align-items: center; justify-content: space-between;
}

/* --- Contenedores --- */
.container { max-width: 1000px; margin: 0 auto; padding: 24px 20px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow);
}
.card h3 { margin: 0 0 6px; font-size: 15px; font-weight: 500; }
.card p { margin: 0; font-size: 13px; color: var(--text-soft); line-height: 1.5; }

/* --- Botones --- */
.btn {
  font: inherit; font-size: 14px; padding: 9px 16px; border-radius: 8px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  cursor: pointer;
}
.btn.primary { background: var(--primary); color: #fff; border-color: transparent; }
.btn.link { border: none; background: none; color: var(--primary); padding: 0; }

/* --- Login --- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { width: 360px; max-width: 92%; }
.login-card h1 { font-size: 20px; font-weight: 500; margin: 0 0 4px; }
.login-card .sub { color: var(--text-soft); font-size: 14px; margin: 0 0 18px; }
.field { margin-bottom: 12px; }
.field label { display: block; font-size: 13px; color: var(--text-soft); margin-bottom: 4px; }
.field input {
  width: 100%; font: inherit; font-size: 14px; padding: 9px 11px;
  border: 1px solid var(--border); border-radius: 8px;
}
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 4px; }
.tag { font-size: 11px; padding: 2px 8px; border-radius: 8px; background: var(--primary-soft); color: var(--primary); }