* { box-sizing: border-box; margin: 0; padding: 0; font-family: system-ui, sans-serif; }
body { background-color: #121212; color: #fff; display: flex; justify-content: center; align-items: center; height: 100vh; }
.login-container { background-color: #1e1e1e; padding: 2rem; border-radius: 6px; width: 100%; max-width: 380px; box-shadow: 0 8px 16px rgba(0,0,0,0.5); border: 1px solid #333; }
h2 { text-align: center; margin-bottom: 1.5rem; font-size: 1.4rem; font-weight: 500; }
.form-group { margin-bottom: 1.2rem; }
label { display: block; margin-bottom: 0.4rem; font-size: 0.85rem; color: #aaa; }
input { width: 100%; padding: 0.8rem; border: 1px solid #444; border-radius: 4px; background-color: #121212; color: #fff; }
input:focus { outline: none; border-color: #007bff; }
button { width: 100%; padding: 0.8rem; background-color: #007bff; color: #fff; border: none; border-radius: 4px; font-weight: 600; cursor: pointer; transition: 0.2s; }
button:hover { background-color: #0056b3; }
button:disabled { background-color: #444; cursor: not-allowed; }
.oculto { display: none; }
.erro-msg { background-color: #4a1313; color: #ff6b6b; padding: 0.8rem; border-radius: 4px; margin-bottom: 1rem; text-align: center; font-size: 0.85rem; border: 1px solid #ff6b6b; }