body {
            font-family: 'Segoe UI', sans-serif;
            background-color: #f9f9f9;
            padding: 30px;
        }
        .form-container {
            max-width: 450px;
            margin: auto;
            background: white;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        h2 {
            text-align: center;
            color: #1d1d1d;
        }
        .input-group {
            margin-bottom: 15px;
        }
        label {
            display: block;
            font-weight: bold;
            margin-bottom: 6px;
        }
        input {
            width: 100%;
            padding: 10px;
            border-radius: 6px;
            border: 1px solid #ccc;
        }
        .botones-flex {
            display: flex;
            justify-content: space-between;
            gap: 12px;
            margin-top: 10px;
        }
        .botones-flex button,
        .botones-flex .btn-regresar {
            background-color: #ff6a00;
            color: white;
            padding: 8px 0;
            border: none;
            width: 48%;
            font-size: 14px;
            border-radius: 24px;
            cursor: pointer;
            text-align: center;
            text-decoration: none;
            transition: background 0.2s;
        }
        .botones-flex .btn-regresar:hover,
        .botones-flex button:hover {
            background-color: #e25c00;
        }
        .mensaje {
            text-align: center;
            margin-bottom: 15px;
        }
        .mensaje.error {
            color: red;
        }
        .mensaje.exito {
            color: green;
        }