* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: #f4f7f2;
  color: #1f2a1e;
}
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1.5rem;
  background: #2f6b3a;
  color: #fff;
  min-height: 2.5rem;
}
.navbar .brand { font-weight: 700; font-size: 1.1rem; }
.nav-links a {
  color: #fff;
  text-decoration: none;
  margin-left: 1rem;
}
.nav-links a:hover { text-decoration: underline; }
.nav-user { margin-left: 1rem; opacity: 0.85; }

.container { max-width: 960px; margin: 2rem auto; padding: 0 1rem; }

.auth-card {
  max-width: 360px;
  margin: 4rem auto;
  padding: 2rem;
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}
.auth-card h1 { margin: 0 0 0.25rem; color: #2f6b3a; }
.subtitle { margin: 0 0 1.5rem; color: #667; }
.field { margin-bottom: 1rem; display: flex; flex-direction: column; }
.field label { margin-bottom: 0.25rem; font-weight: 600; }
.field input {
  padding: 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}
.btn {
  width: 100%;
  padding: 0.6rem;
  background: #2f6b3a;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
}
.btn:hover { background: #275a30; }

.flash {
  padding: 0.6rem 1rem;
  border-radius: 4px;
  margin-bottom: 1rem;
}
.flash-danger { background: #fbdada; color: #7a1f1f; }