:root {
  --color-primary: #00A5E4;   /* azul institucional DASE */
  --color-primary-dark: #0087bd;
  --color-navy: #2A2F5B;      /* marino institucional DASE */
  --color-bg: #f4f6fb;
  --color-surface: #ffffff;
  --color-text: #1c1f2b;
  --color-text-muted: #5a5f73;
  --color-border: #dde1ec;
  --color-danger: #c0392b;
  --color-success: #1e824c;
  --radius: 10px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-text-size-adjust: 100%;
}

body { font-size: 16px; line-height: 1.5; }

a { color: var(--color-primary-dark); }

h1, h2, h3 { color: var(--color-navy); margin: 0 0 .5rem; }

.btn {
  display: inline-block;
  border: none;
  border-radius: var(--radius);
  padding: .65rem 1.1rem;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
}

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-secondary { background: var(--color-surface); color: var(--color-navy); border: 1px solid var(--color-border); }

.badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  background: var(--color-border);
  color: var(--color-navy);
}

.alert { padding: .8rem 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: .9rem; }
.alert-error { background: #fdecea; color: var(--color-danger); border: 1px solid #f5c6c1; }
.alert-success { background: #e9f7ef; color: var(--color-success); border: 1px solid #b7e4c7; }