:root {
  /* Base (oscuro) */
  --bg: #0b0b0b;              /* fondo más neutro para que el rojo destaque */
  --card: #141414;
  --muted: #9ca3af;
  --text: #f3f4f6;

  /* Claro – primarios */
  --primary: #ED1C24;         /* Rojo Claro */
  --primary-900: #990F12;     /* Rojo oscuro (hover/active) */
  --primary-700: #C01016;     /* tono intermedio */
  --primary-300: #FF4D57;     /* aclarado para focus/soft states */

  /* Feedback */
  --danger: #ED1C24;          /* alinea “error” con marca */
  --warning: #F59E0B;         /* dejas tu amber actual */
  --success: #16a34a;

  --radius: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial;
  background: radial-gradient(1200px 800px at 20% 10%, #1f2937 10%, var(--bg));
  color: var(--text);
}

#app {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.card {
  width: 100%;
  max-width: 420px;
  background: linear-gradient(135deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 22px;
  overflow: hidden; 
  backdrop-filter: blur(10px);
  box-shadow: 0 20px 80px rgba(0,0,0,0.35);
}

.header {
  text-align: center;
  margin-bottom: 16px;
}
.header h1 { margin: 0 0 8px; font-size: 1.4rem; }
.header p { margin: 0; color: var(--muted); font-size: 0.95rem; }
.header-img {
  width: 100%;
  height: 200px;
  object-fit: contain; /* asegura que se vea completa */
  display: block;

}

.form { display: grid; gap: 12px; }
.row { display: grid; gap: 6px; }
label { font-size: 0.9rem; color: var(--muted); }
input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.06);
  color: var(--text);
  outline: none;
}
input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(34,197,94,0.15); }

.btn {
  width: 100%;
  padding: 12px 14px;
  border: 0;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-900));
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.05); }
.btn.ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255,255,255,0.12);
}
.actions { display: grid; gap: 8px; margin-top: 8px; }

.alert { padding: 10px 12px; border-radius: 12px; font-size: 0.92rem; }
.alert.error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.35); color: #fecaca; }
.alert.ok { background: rgba(34,197,94,0.1); border: 1px solid rgba(34,197,94,0.35); color: #bbf7d0; }
.alert.warn { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.35); color: #fde68a; }

.footer {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--muted);
  text-align: center;
}

@media (min-width: 768px) {
  .card { padding: 26px; }
}